CN106904621A - A kind of modification process for attapulgite clay - Google Patents
A kind of modification process for attapulgite clay Download PDFInfo
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- CN106904621A CN106904621A CN201710231500.XA CN201710231500A CN106904621A CN 106904621 A CN106904621 A CN 106904621A CN 201710231500 A CN201710231500 A CN 201710231500A CN 106904621 A CN106904621 A CN 106904621A
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- convex clay
- clay rod
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- attapulgite
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/40—Clays
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- Silicates, Zeolites, And Molecular Sieves (AREA)
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Abstract
The invention belongs to technical field of sewage, there is provided a kind of modification process for attapulgite clay, comprise the following steps：（1）In the mixer that first the Concave-convex clay rod input after weathering has been operated, then watery hydrochloric acid is slowly added to be stirred in the Concave-convex clay rod after weathering, carries out acidification；（2）By the Concave-convex clay rod after acidification, it is Concave-convex clay rod tablet to be extruded by twin rollers, and the thickness of Concave-convex clay rod tablet is less than 3 millimeters；（3）Concave-convex clay rod tablet is transported in swinging drying oven and is calcined, sintering temperature is controlled at 300~340 DEG C, Concave-convex clay rod tablet water content after roasting is less than 5%, and the Concave-convex clay rod tablet after roasting is the Concave-convex clay rod semi-finished product after acidifying.The present invention can improve the performances such as Concave-convex clay rod absorption property, percent of decolourization, catalytic action, specific surface area, porosity and viscosity.
Description
Technical field
The invention belongs to concave convex rod processing technique field, specifically, a kind of modification process for attapulgite clay.
Background technology
Concave-convex clay rod also contains bentonite, kaolinite, hydromica, sepiolite, quartz, egg in addition to containing attapulgite
The white mineral such as stone and carbonate, in order to be able to improve Concave-convex clay rod correlated performance, it is necessary to be acidified to Concave-convex clay rod
Treatment.
In Attapulgite clay area, usage mining machine carries out mechanical mining Concave-convex clay rod raw ore, excavates
Be a kind of compact massive Concave-convex clay rod raw ore, the volume of Concave-convex clay rod raw ore is larger, it is impossible to be directly used in acidifying
Treatment, being broken for tiny particle frequently with pulverizer carries out acidification, it is easy to destroy the crystal structure of attapulgite.
After Concave-convex clay rod is acidified, although absorption property can obtain some raisings, Concave-convex clay rod
Colloidal property but significantly decline, it is impossible to being directly used in production needs molecular sieve, catalyst and the drying of certain colloid viscosity
The products such as agent.
Concave-convex clay rod refers to a kind of clay mineral with attapulgite as key component.Attapulgite is a kind of crystalloid
, with unique layer chain structure feature, there is crystal lattice in hydration alumina magnesia silicate, contain in side crystal in its structure
There is variable amount of Na+、Ca2+、Fe3+、Al3+, crystal is in needle-like, threadiness or fiber collection shape.With between chain structure and layer
Intermediate structure between shape structure, low intensity when not being crosslinked, easily breaks, and without elasticity, absorption and caking property are low.
Concave-convex clay rod has the advantages that cheap raw material, aboundresources and specific surface area are big as a kind of natural material,
Concave-convex clay rod has special fibre structure and crystal structure, is allowed to many special materializations and processing performance.By
There is larger specific surface area in Concave-convex clay rod, stronger suction-operated is made it have, can be with at a fairly low concentration
High-viscosity suspension is formed, can be used as dytory, suspending agent, binding agent etc..
A kind of method for improving concavo-convex clay property of research and development turns into focus.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of modification process for attapulgite clay, this hair
Bright purpose is to improve Concave-convex clay rod absorption property, percent of decolourization, catalytic action, specific surface area, hole with the method for acidifying
The method of the performance such as gap rate and viscosity.
According to a kind of modification process for attapulgite clay that the present invention is provided, the modification process for attapulgite clay includes
Following steps：
（1）In the mixer that first the Concave-convex clay rod input after weathering has been operated, then watery hydrochloric acid is slowly added to
Stirred together in Concave-convex clay rod after weathering, carried out acidification；
（2）By the Concave-convex clay rod after acidification, it is Concave-convex clay rod tablet, attapulgite to be extruded by twin rollers
The thickness of clay platelet thing is less than 3 millimeters；
（3）Concave-convex clay rod tablet is transported in swinging drying oven and is calcined, roasting time is 2~4 hours, roasting temperature
At 300~340 DEG C, the Concave-convex clay rod tablet water content after roasting is less than 5%, and the attapulgite after roasting glues for degree control
Native tablet is the Concave-convex clay rod semi-finished product after acidifying.
Preferably, the dispensing of the Concave-convex clay rod tablet is made up of following component by weight percentage：Natural wind
Concave-convex clay rod 55~65% and watery hydrochloric acid 25~35% after change.
Preferably, the dispensing of the Concave-convex clay rod tablet is made up of following component by weight percentage：Natural wind
Concave-convex clay rod 58~60% and watery hydrochloric acid 27~33% after change.
Preferably, the dispensing of the Concave-convex clay rod tablet is made up of following component by weight percentage：Natural wind
Concave-convex clay rod 59% and watery hydrochloric acid 29% after change.
Preferably, the hydrochloric acid 1~4% of the ﹪ of the concentration 96, water 92~97%.
Preferably, the Concave-convex clay rod raw ore is needed by the weathering of at least one-year age, from large block compact
Raw ore disintegration for fine particle weathering after Concave-convex clay rod, pick and be evident that barren rock block, string
With other soil impurity, the Concave-convex clay rod grain fineness after weathering is less than 4 millimeters.
Preferably, the modified Concave-convex clay rod includes the raw material of following weight portion：Concave-convex clay rod half into
Product 70~88%, instant potassium silicate 1.1~5.6%, POLYPROPYLENE GLYCOL 2.1~5.7%, hydroxypropyl methyl cellulose 2.41~
3.31% and saleratus 1~2%.
Preferably, the Concave-convex clay rod semi-finished product 75~83%, instant potassium silicate 1.6~4.6%, POLYPROPYLENE GLYCOL
3.1~4.7%, hydroxypropyl methyl cellulose 2.46~3.11% and saleratus 1.5~1.9%.
Preferably, the Concave-convex clay rod semi-finished product 79%, instant potassium silicate 3.6%, POLYPROPYLENE GLYCOL 3.7%, hydroxypropyl
Ylmethyl cellulose 2.56% and saleratus 1.7%.
Compared with prior art, the present invention has following beneficial effect：
（1）The production method of the Concave-convex clay rod after present invention acidifying to be taken first be acidified and carries out compounding ingredient again, can avoid
Sulfuric acid chemically reacts with instant potassium silicate, POLYPROPYLENE GLYCOL, hydroxypropyl methyl cellulose and saleratus, gives full play to dispensing
The respective characteristic of middle raw material, and obtain complementation, it is ensured that the Concave-convex clay rod inherent quality after acidifying；
（2）The present invention is using the Concave-convex clay rod pH value after saleratus adjustment acidifying, and method is simple and easy to apply；
（3）The present invention makes full use of weathering to promote to act on the weathering of Concave-convex clay rod raw ore, improves concave convex rod
The disintegration effect of stone clay raw ore, accelerates the dispersion of Concave-convex clay rod raw ore；
（4）Often containing impurity such as carbonate in Concave-convex clay rod duct of the present invention, on the one hand acidification can remove and be distributed in
Impurity in Concave-convex clay rod duct, dredges duct, on the other hand, due to the cation interchangeability of attapulgite, half
The less H in footpath+Attapulgite interlayer portion K can be displaced+、Na+、Ca2+And Mg2+Plasma, increases pore volume；
（5）Concave-convex clay rod after present invention acidifying is increasing substantially the absorption property of Concave-convex clay rod, percent of decolourization, is urging
While change effect, specific surface area, porosity, after colloid viscosity and the adjustment acidifying of the Concave-convex clay rod after acidifying can be increased
Concave-convex clay rod pH value；
（6）Concave-convex clay rod after acidifying is applied to the industry neck such as production oil, chemical industry, medicine, building materials, plastics, cosmetics
The product in domain.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.
Embodiment 1
A kind of modification process for attapulgite clay that the present embodiment is provided, the modification process for attapulgite clay includes following step
Suddenly：
（1）In the mixer that first the Concave-convex clay rod input after weathering has been operated, then watery hydrochloric acid is slowly added to
Stirred together in Concave-convex clay rod after weathering, carried out acidification；
（2）By the Concave-convex clay rod after acidification, it is Concave-convex clay rod tablet, attapulgite to be extruded by twin rollers
The thickness of clay platelet thing is less than 3 millimeters；
（3）Concave-convex clay rod tablet is transported in swinging drying oven and is calcined, roasting time is 4 hours, sintering temperature
At 300 DEG C, the Concave-convex clay rod tablet water content after roasting is less than 5%, the Concave-convex clay rod sheet after roasting for control
Thing is the Concave-convex clay rod semi-finished product after acidifying.
The dispensing of the Concave-convex clay rod tablet is made up of following component by weight percentage：It is recessed after weathering
Convex rod stone clay 65% and watery hydrochloric acid 25%.
The hydrochloric acid 4% of the ﹪ of the concentration 96, water 92%.
The Concave-convex clay rod raw ore needs, by the weathering of at least one-year age, to be collapsed from the raw ore of large block compact
The Concave-convex clay rod after the weathering for fine particle is solved, is picked and is evident that barren rock block, string and other mud
Native impurity, the Concave-convex clay rod grain fineness after weathering is less than 4 millimeters.
The modified Concave-convex clay rod includes the raw material of following weight portion：Concave-convex clay rod semi-finished product 88%,
Instant potassium silicate 1.1%, POLYPROPYLENE GLYCOL 5.7%, hydroxypropyl methyl cellulose 2.41% and saleratus 2%.
The present invention has following beneficial effect：
The production method of the Concave-convex clay rod after present invention acidifying to be taken first be acidified and carries out compounding ingredient again, can avoid sulfuric acid
Chemically reacted with instant potassium silicate, POLYPROPYLENE GLYCOL, hydroxypropyl methyl cellulose and saleratus, give full play to dispensing Central Plains
The respective characteristic of material, and obtain complementation, it is ensured that the Concave-convex clay rod inherent quality after acidifying；
The present invention is using the Concave-convex clay rod pH value after saleratus adjustment acidifying, and method is simple and easy to apply；
The present invention makes full use of weathering to promote to act on the weathering of Concave-convex clay rod raw ore, improves attapulgite and glues
The disintegration effect of native raw ore, accelerates the dispersion of Concave-convex clay rod raw ore；
Often containing the impurity such as carbonate in Concave-convex clay rod duct of the present invention, acidification on the one hand can remove be distributed in it is concavo-convex
Impurity in rod stone clay duct, dredges duct, on the other hand, due to the cation interchangeability of attapulgite, radius compared with
Small H+Attapulgite interlayer portion K can be displaced+、Na+、Ca2+And Mg2+Plasma, increases pore volume；
Concave-convex clay rod after present invention acidifying is increasing substantially absorption property, percent of decolourization, the catalysis of Concave-convex clay rod
While effect, specific surface area, porosity, after colloid viscosity and the adjustment acidifying of the Concave-convex clay rod after acidifying can be increased
Concave-convex clay rod pH value；
Concave-convex clay rod after acidifying is applied to the industry fields such as production oil, chemical industry, medicine, building materials, plastics, cosmetics
Product.
Embodiment 2
A kind of modification process for attapulgite clay that the present embodiment is provided, the modification process for attapulgite clay includes following step
Suddenly：
（1）In the mixer that first the Concave-convex clay rod input after weathering has been operated, then watery hydrochloric acid is slowly added to
Stirred together in Concave-convex clay rod after weathering, carried out acidification；
（2）By the Concave-convex clay rod after acidification, it is Concave-convex clay rod tablet, attapulgite to be extruded by twin rollers
The thickness of clay platelet thing is less than 3 millimeters；
（3）Concave-convex clay rod tablet is transported in swinging drying oven and is calcined, roasting time is 2 hours, sintering temperature
At 340 DEG C, the Concave-convex clay rod tablet water content after roasting is less than 5%, the Concave-convex clay rod sheet after roasting for control
Thing is the Concave-convex clay rod semi-finished product after acidifying.
The dispensing of the Concave-convex clay rod tablet is made up of following component by weight percentage：It is recessed after weathering
Convex rod stone clay 55% and watery hydrochloric acid 35%.
The hydrochloric acid 1% of the ﹪ of the concentration 96, water 97%.
The Concave-convex clay rod raw ore needs, by the weathering of at least one-year age, to be collapsed from the raw ore of large block compact
The Concave-convex clay rod after the weathering for fine particle is solved, is picked and is evident that barren rock block, string and other mud
Native impurity, the Concave-convex clay rod grain fineness after weathering is less than 4 millimeters.
The modified Concave-convex clay rod includes the raw material of following weight portion：Concave-convex clay rod semi-finished product 70%,
Instant potassium silicate 5.6%, POLYPROPYLENE GLYCOL 2.1%, hydroxypropyl methyl cellulose 3.31% and saleratus 1%.
The present invention has following beneficial effect：
The production method of the Concave-convex clay rod after present invention acidifying to be taken first be acidified and carries out compounding ingredient again, can avoid sulfuric acid
Chemically reacted with instant potassium silicate, POLYPROPYLENE GLYCOL, hydroxypropyl methyl cellulose and saleratus, give full play to dispensing Central Plains
The respective characteristic of material, and obtain complementation, it is ensured that the Concave-convex clay rod inherent quality after acidifying；
The present invention is using the Concave-convex clay rod pH value after saleratus adjustment acidifying, and method is simple and easy to apply；
The present invention makes full use of weathering to promote to act on the weathering of Concave-convex clay rod raw ore, improves attapulgite and glues
The disintegration effect of native raw ore, accelerates the dispersion of Concave-convex clay rod raw ore；
Often containing the impurity such as carbonate in Concave-convex clay rod duct of the present invention, acidification on the one hand can remove be distributed in it is concavo-convex
Impurity in rod stone clay duct, dredges duct, on the other hand, due to the cation interchangeability of attapulgite, radius compared with
Small H+Attapulgite interlayer portion K can be displaced+、Na+、Ca2+And Mg2+Plasma, increases pore volume；
Concave-convex clay rod after present invention acidifying is increasing substantially absorption property, percent of decolourization, the catalysis of Concave-convex clay rod
While effect, specific surface area, porosity, after colloid viscosity and the adjustment acidifying of the Concave-convex clay rod after acidifying can be increased
Concave-convex clay rod pH value；
Concave-convex clay rod after acidifying is applied to the industry fields such as production oil, chemical industry, medicine, building materials, plastics, cosmetics
Product.
Embodiment 3
A kind of modification process for attapulgite clay that the present embodiment is provided, the modification process for attapulgite clay includes following step
Suddenly：
（1）In the mixer that first the Concave-convex clay rod input after weathering has been operated, then watery hydrochloric acid is slowly added to
Stirred together in Concave-convex clay rod after weathering, carried out acidification；
（2）By the Concave-convex clay rod after acidification, it is Concave-convex clay rod tablet, attapulgite to be extruded by twin rollers
The thickness of clay platelet thing is less than 3 millimeters；
（3）Concave-convex clay rod tablet is transported in swinging drying oven and is calcined, roasting time is 3 hours, sintering temperature
At 330 DEG C, the Concave-convex clay rod tablet water content after roasting is less than 5%, the Concave-convex clay rod sheet after roasting for control
Thing is the Concave-convex clay rod semi-finished product after acidifying.
The dispensing of the Concave-convex clay rod tablet is made up of following component by weight percentage：It is recessed after weathering
Convex rod stone clay 60% and watery hydrochloric acid 27%.
The hydrochloric acid 4% of the ﹪ of the concentration 96, water 92%.
The Concave-convex clay rod raw ore needs, by the weathering of at least one-year age, to be collapsed from the raw ore of large block compact
The Concave-convex clay rod after the weathering for fine particle is solved, is picked and is evident that barren rock block, string and other mud
Native impurity, the Concave-convex clay rod grain fineness after weathering is less than 4 millimeters.
The Concave-convex clay rod semi-finished product 83%, instant potassium silicate 1.6%, POLYPROPYLENE GLYCOL 4.7%, hydroxypropyl methyl are fine
Dimension element 2.46% and saleratus 1.9%.
The present invention has following beneficial effect：
The production method of the Concave-convex clay rod after present invention acidifying to be taken first be acidified and carries out compounding ingredient again, can avoid sulfuric acid
Chemically reacted with instant potassium silicate, POLYPROPYLENE GLYCOL, hydroxypropyl methyl cellulose and saleratus, give full play to dispensing Central Plains
The respective characteristic of material, and obtain complementation, it is ensured that the Concave-convex clay rod inherent quality after acidifying；
The present invention is using the Concave-convex clay rod pH value after saleratus adjustment acidifying, and method is simple and easy to apply；
The present invention makes full use of weathering to promote to act on the weathering of Concave-convex clay rod raw ore, improves attapulgite and glues
The disintegration effect of native raw ore, accelerates the dispersion of Concave-convex clay rod raw ore；
Often containing the impurity such as carbonate in Concave-convex clay rod duct of the present invention, acidification on the one hand can remove be distributed in it is concavo-convex
Impurity in rod stone clay duct, dredges duct, on the other hand, due to the cation interchangeability of attapulgite, radius compared with
Small H+Attapulgite interlayer portion K can be displaced+、Na+、Ca2+And Mg2+Plasma, increases pore volume；
Concave-convex clay rod after present invention acidifying is increasing substantially absorption property, percent of decolourization, the catalysis of Concave-convex clay rod
While effect, specific surface area, porosity, after colloid viscosity and the adjustment acidifying of the Concave-convex clay rod after acidifying can be increased
Concave-convex clay rod pH value；
Concave-convex clay rod after acidifying is applied to the industry fields such as production oil, chemical industry, medicine, building materials, plastics, cosmetics
Product.
Embodiment 4
A kind of modification process for attapulgite clay that the present embodiment is provided, the modification process for attapulgite clay includes following step
Suddenly：
（1）In the mixer that first the Concave-convex clay rod input after weathering has been operated, then watery hydrochloric acid is slowly added to
Stirred together in Concave-convex clay rod after weathering, carried out acidification；
（2）By the Concave-convex clay rod after acidification, it is Concave-convex clay rod tablet, attapulgite to be extruded by twin rollers
The thickness of clay platelet thing is less than 3 millimeters；
（3）Concave-convex clay rod tablet is transported in swinging drying oven and is calcined, roasting time is 2 hours, sintering temperature
At 340 DEG C, the Concave-convex clay rod tablet water content after roasting is less than 5%, the Concave-convex clay rod sheet after roasting for control
Thing is the Concave-convex clay rod semi-finished product after acidifying.
The dispensing of the Concave-convex clay rod tablet is made up of following component by weight percentage：It is recessed after weathering
Convex rod stone clay 60% and watery hydrochloric acid 33%.
The hydrochloric acid 4% of the ﹪ of the concentration 96, water 97%.
The Concave-convex clay rod raw ore needs, by the weathering of at least one-year age, to be collapsed from the raw ore of large block compact
The Concave-convex clay rod after the weathering for fine particle is solved, is picked and is evident that barren rock block, string and other mud
Native impurity, the Concave-convex clay rod grain fineness after weathering is less than 4 millimeters.
The Concave-convex clay rod semi-finished product 83%, instant potassium silicate 4.6%, POLYPROPYLENE GLYCOL 3.1%, hydroxypropyl methyl are fine
Dimension element 3.11% and saleratus 1.5%.
The present invention has following beneficial effect：
The production method of the Concave-convex clay rod after present invention acidifying to be taken first be acidified and carries out compounding ingredient again, can avoid sulfuric acid
Chemically reacted with instant potassium silicate, POLYPROPYLENE GLYCOL, hydroxypropyl methyl cellulose and saleratus, give full play to dispensing Central Plains
The respective characteristic of material, and obtain complementation, it is ensured that the Concave-convex clay rod inherent quality after acidifying；
The present invention is using the Concave-convex clay rod pH value after saleratus adjustment acidifying, and method is simple and easy to apply；
The present invention makes full use of weathering to promote to act on the weathering of Concave-convex clay rod raw ore, improves attapulgite and glues
The disintegration effect of native raw ore, accelerates the dispersion of Concave-convex clay rod raw ore；
Often containing the impurity such as carbonate in Concave-convex clay rod duct of the present invention, acidification on the one hand can remove be distributed in it is concavo-convex
Impurity in rod stone clay duct, dredges duct, on the other hand, due to the cation interchangeability of attapulgite, radius compared with
Small H+Attapulgite interlayer portion K can be displaced+、Na+、Ca2+And Mg2+Plasma, increases pore volume；
Concave-convex clay rod after present invention acidifying is increasing substantially absorption property, percent of decolourization, the catalysis of Concave-convex clay rod
While effect, specific surface area, porosity, after colloid viscosity and the adjustment acidifying of the Concave-convex clay rod after acidifying can be increased
Concave-convex clay rod pH value；
Concave-convex clay rod after acidifying is applied to the industry fields such as production oil, chemical industry, medicine, building materials, plastics, cosmetics
Product.
Embodiment 5
A kind of modification process for attapulgite clay that the present embodiment is provided, the modification process for attapulgite clay includes following step
Suddenly：
（1）In the mixer that first the Concave-convex clay rod input after weathering has been operated, then watery hydrochloric acid is slowly added to
Stirred together in Concave-convex clay rod after weathering, carried out acidification；
（2）By the Concave-convex clay rod after acidification, it is Concave-convex clay rod tablet, attapulgite to be extruded by twin rollers
The thickness of clay platelet thing is less than 3 millimeters；
（3）Concave-convex clay rod tablet is transported in swinging drying oven and is calcined, roasting time is 4 hours, sintering temperature
At 320 DEG C, the Concave-convex clay rod tablet water content after roasting is less than 5%, the Concave-convex clay rod sheet after roasting for control
Thing is the Concave-convex clay rod semi-finished product after acidifying.
The dispensing of the Concave-convex clay rod tablet is made up of following component by weight percentage：It is recessed after weathering
Convex rod stone clay 59% and watery hydrochloric acid 29%.
The hydrochloric acid 2% of the ﹪ of the concentration 96, water 95%.
The Concave-convex clay rod raw ore needs, by the weathering of at least one-year age, to be collapsed from the raw ore of large block compact
The Concave-convex clay rod after the weathering for fine particle is solved, is picked and is evident that barren rock block, string and other mud
Native impurity, the Concave-convex clay rod grain fineness after weathering is less than 4 millimeters.
The Concave-convex clay rod semi-finished product 79%, instant potassium silicate 3.6%, POLYPROPYLENE GLYCOL 3.7%, hydroxypropyl methyl are fine
Dimension element 2.56% and saleratus 1.7%.
The present invention has following beneficial effect：
The production method of the Concave-convex clay rod after present invention acidifying to be taken first be acidified and carries out compounding ingredient again, can avoid sulfuric acid
Chemically reacted with instant potassium silicate, POLYPROPYLENE GLYCOL, hydroxypropyl methyl cellulose and saleratus, give full play to dispensing Central Plains
The respective characteristic of material, and obtain complementation, it is ensured that the Concave-convex clay rod inherent quality after acidifying；
The present invention is using the Concave-convex clay rod pH value after saleratus adjustment acidifying, and method is simple and easy to apply；
The present invention makes full use of weathering to promote to act on the weathering of Concave-convex clay rod raw ore, improves attapulgite and glues
The disintegration effect of native raw ore, accelerates the dispersion of Concave-convex clay rod raw ore；
Often containing the impurity such as carbonate in Concave-convex clay rod duct of the present invention, acidification on the one hand can remove be distributed in it is concavo-convex
Impurity in rod stone clay duct, dredges duct, on the other hand, due to the cation interchangeability of attapulgite, radius compared with
Small H+Attapulgite interlayer portion K can be displaced+、Na+、Ca2+And Mg2+Plasma, increases pore volume；
Concave-convex clay rod after present invention acidifying is increasing substantially absorption property, percent of decolourization, the catalysis of Concave-convex clay rod
While effect, specific surface area, porosity, after colloid viscosity and the adjustment acidifying of the Concave-convex clay rod after acidifying can be increased
Concave-convex clay rod pH value；
Concave-convex clay rod after acidifying is applied to the industry fields such as production oil, chemical industry, medicine, building materials, plastics, cosmetics
Product.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various deformations or amendments, this not shadow
Sound substance of the invention.
Claims (9)
1. a kind of modification process for attapulgite clay, it is characterised in that the modification process for attapulgite clay includes following step
Suddenly：
（1）In the mixer that first the Concave-convex clay rod input after weathering has been operated, then watery hydrochloric acid is slowly added to
Stirred together in Concave-convex clay rod after weathering, carried out acidification；
（2）By the Concave-convex clay rod after acidification, it is Concave-convex clay rod tablet, attapulgite to be extruded by twin rollers
The thickness of clay platelet thing is less than 3 millimeters；
（3）Concave-convex clay rod tablet is transported in swinging drying oven and is calcined, roasting time is 2~4 hours, roasting temperature
At 300~340 DEG C, the Concave-convex clay rod tablet water content after roasting is less than 5%, and the attapulgite after roasting glues for degree control
Native tablet is the Concave-convex clay rod semi-finished product after acidifying.
2. modification process for attapulgite clay according to claim 1, it is characterised in that：The Concave-convex clay rod sheet
The dispensing of thing is made up of following component by weight percentage：Concave-convex clay rod 55~65% and watery hydrochloric acid 25 after weathering
~35%.
3. modification process for attapulgite clay according to claim 1, it is characterised in that：The Concave-convex clay rod sheet
The dispensing of thing is made up of following component by weight percentage：Concave-convex clay rod 58~60% and watery hydrochloric acid 27 after weathering
~33%.
4. modification process for attapulgite clay according to claim 1, it is characterised in that：The Concave-convex clay rod sheet
The dispensing of thing is made up of following component by weight percentage：Concave-convex clay rod 59% and watery hydrochloric acid 29% after weathering.
5. modification process for attapulgite clay according to claim 2, it is characterised in that：The hydrochloric acid 1 of the ﹪ of the concentration 96
~4%, water 92~97%.
6. modification process for attapulgite clay according to claim 3, it is characterised in that：The Concave-convex clay rod raw ore
Need by the weathering of at least one-year age, from the disintegration of the raw ore of large block compact for the weathering of fine particle after it is recessed
Convex rod stone clay, picks and is evident that barren rock block, string and other soil impurity, and the attapulgite after weathering glues
Soil particle fineness is less than 4 millimeters.
7. modification process for attapulgite clay according to claim 1, it is characterised in that：The modified attapulgite
Clay includes the raw material of following weight portion：Concave-convex clay rod semi-finished product 70~88%, instant potassium silicate 1.1~5.6%, poly- third
Enol 2.1~5.7%, hydroxypropyl methyl cellulose 2.41~3.31% and saleratus 1~2%.
8. modification process for attapulgite clay according to claim 7, it is characterised in that：The Concave-convex clay rod half into
Product 75~83%, instant potassium silicate 1.6~4.6%, POLYPROPYLENE GLYCOL 3.1~4.7%, hydroxypropyl methyl cellulose 2.46~
3.11% and saleratus 1.5~1.9%.
9. modification process for attapulgite clay according to claim 7, it is characterised in that：The Concave-convex clay rod half into
Product 79%, instant potassium silicate 3.6%, POLYPROPYLENE GLYCOL 3.7%, hydroxypropyl methyl cellulose 2.56% and saleratus 1.7%.
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| CN114684829A (en) * | 2022-03-21 | 2022-07-01 | 淮阴工学院 | Method for quickly converting white variegated mixed-dimension attapulgite into white variegated mixed-dimension attapulgite |
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