CN109954478A - A kind of preparation method of atlapulgite acid lowering agent - Google Patents
A kind of preparation method of atlapulgite acid lowering agent Download PDFInfo
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- CN109954478A CN109954478A CN201711418149.1A CN201711418149A CN109954478A CN 109954478 A CN109954478 A CN 109954478A CN 201711418149 A CN201711418149 A CN 201711418149A CN 109954478 A CN109954478 A CN 109954478A
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Abstract
The present invention relates to atlapulgite technical fields, and in particular to a kind of preparation method of atlapulgite acid lowering agent includes the following steps: raw material selection, raw material mixing, acidification, basification, brilliant beam dissociation, drying roasting and grinding finished product.Atlapulgite is produced using atlapulgite acid lowering agent prepared by the present invention, the atlapulgite finished product of atlapulgite finished product or client's specified value that meet national standards can not only be produced, but also atlapulgite yield can be increased, improves Business Economic Benefit.
Description
Technical field
The present invention relates to atlapulgite technical fields, and in particular to a kind of preparation method of atlapulgite acid lowering agent.
Background technique
It is raw material that atlapulgite, which is with clay (mainly bentonite), at inorganic acid or salt or other impurity methods
Reason, then through water rinsing, it is dry made of adsorption decolouriser, appearance be it is powdered, odorless, tasteless, nontoxic, absorption property is very strong,
Coloring matter, organic substance can be adsorbed, the fields such as petroleum, chemistry, food, national defence or medical treatment are widely used in.
Activated clay production technique mainly has suspension method (wet process), ageing method (wet process), extrusion (semidry method), ultrasound
Wave, microwave method (dry method).Full-dry method, half wet process production technology operation difficulty are big, and stable product quality is poor, and it is white to limit activity
The purposes of soil, using less in industrial actual production.Currently, domestic preparation activated clay production mostly uses wet processing,
Wet processing be by bentonite ore roughing, crush, it is purified, mashing after in a kettle acid adding, heating, at 70-100 DEG C
It activates within reaction 1.5-6 hours, is repeatedly centrifugated and is rinsed, then neutralized drying, crush obtained atlapulgite production
Product.Although this method stable product quality, acid consumption is very big, causes slurry amount big, and environmental pollution is serious, cost
It is high.
The main production process of existing atlapulgite is as follows: 1, the Chinese invention patent of Patent No. CN99105673.6
A kind of preparation method of wet production atlapulgite is disclosed, including by after bentonite ore roughing, crushing, with acid 70~100
It is reacted 1.5~4.5 hours at DEG C, is repeatedly centrifugated and is rinsed, then neutralized, and control its pH, then drying, powder
Broken product to obtain the final product.This method production process is more rough, while needing to heat reaction, and energy consumption is higher, and using in a large amount of strong acid
And pH value, environmental pollution is larger, repeatedly washes, water consumption is larger, and process is longer, production capacity is low, and production cost is higher.
2, the Chinese invention patent of Patent No. CN200810020192.7 discloses a kind of production technology of atlapulgite,
The invention is handled by depickling before former atlapulgite great Chi soaking and water washing technique is changed to acidification slurry washing, and uses high-pressure flow
Water is washed.The Granularity Structure for changing atlapulgite by the high pressure depickling of early period and high pressure washing, using novel device plus
Work makes the rate of filtration of product from 12 minutes or so at fast filter type atlapulgite product under the premise of not changing decoloration performance
It is increased to less than 7 minutes.Although this method acid elution number is greatly reduced, acid pickle still has pollution to environment, and high
Hydraulic water amount is larger, and process is complex, and production cost is difficult to control.
3, application No. is the Chinese invention patent applications of CN201610654509.7 to disclose a kind of preparation of atlapulgite
Method, clay is added in crusher first carry out it is rough and torn, it is rough and torn after clay enter ball mill, while in the ball mill according to
Certain mass is than being added water and dispersing agent, and by clay abrasive at ore pulp, ore pulp is squeezed into reactive tank with acid in certain temperature condition
Under, it is activated according to certain mass ratio, after activating a period of time, after washing, filters pressing, drying, crushing, detection and packaging,
Up to atlapulgite.Although this method reduces the usage amount of acid and the water consumption of washing, dispersing agent by the way that dispersing agent is added
Additional addition drop influence product quality, and appointed with sour water consumption right larger.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of activity for deficiency present in the background technique
The preparation method of carclazyte acid lowering agent produces atlapulgite using the atlapulgite acid lowering agent that the preparation method is produced, can not only
The atlapulgite finished product of atlapulgite finished product or client's specified value that meet national standards is produced, but also can simplify biography
System wet process technique process, is greatly decreased industrial water, electricity consumption, reduces sour water and administers and outlet load, the life of saving enterprise
Produce cost.Meanwhile atlapulgite is produced using the atlapulgite acid lowering agent that the preparation method is produced, it can also further increase
Atlapulgite yield improves Business Economic Benefit.
The scheme that the present invention solves above-mentioned technical problem is: a kind of preparation method of atlapulgite acid lowering agent, including as follows
Step:
Step 1: raw material is chosen, and chooses 90 parts of attapulgites, 5 parts of bentonites and 5 parts of ingredients as basic raw material；
Step 2: raw material mixing is mixed evenly attapulgite, bentonite and ingredient in step 1 to form mixture A；
Step 3: the mixture A in step 2 is carried out room temperature acidification with 1-10 parts of acid and 15 parts of water and is formed by acidification
Mixture B, acidificatoin time >=72 hour；
Step 4: 1-5 parts of alkali is added in the mixture B into step 3 for basification, add water be mixed evenly to be formed it is mixed
Material C is closed, mixture C water content is 10-20%；
Step 5: brilliant beam dissociation is repeatedly extruded with mixture C of the twin rollers to step 4, is carried out brilliant beam and is dissociated to form mixture
D；
Step 6: drying roasting, by step 5 mixture D be sent into roaster roast 30-90 minutes, 300-500 DEG C of temperature,
Form mixture E；
Step 7: grinding finished product: grinding, 200 mesh of fineness are carried out to mixture E, percent of pass >=90% forms final finished.
Preferably, the ingredient in the preparation method step 1 of above-mentioned atlapulgite acid lowering agent is kaolinite, illite, stone
The combination material of one or more of the mineral such as English, dolomite, feldspar.
It preferably, is sulfuric acid or hydrochloric acid etc. with acid in the preparation method step 3 of above-mentioned atlapulgite acid lowering agent, preferably
98% sulfuric acid or the low-concentration sulfuric acid to convert on an equal basis, the hydrochloric acid of 36-38% or the low-concentration hcl to convert on an equal basis.
It preferably, is sodium hydroxide, calcium hydroxide, hydrogen with alkali in the preparation method step 4 of above-mentioned atlapulgite acid lowering agent
Magnesia etc..
Preferably, in the preparation method step 5 of above-mentioned atlapulgite acid lowering agent twin rollers pressing steps four mixture C
It is 2-5 times.
Preferably, it can also use and dry in the preparation method step 6 of above-mentioned atlapulgite acid lowering agent, it is mixed after drying
Close material E moisture content≤12%.
Preferably, powder is carried out to mixture E using Raymond mill in the preparation method step 7 of above-mentioned atlapulgite acid lowering agent
Mill.
Using the preparation method of above-mentioned atlapulgite acid lowering agent, the atlapulgite acid lowering agent that can be produced is by as follows by weight
Amount percentage at being grouped as: SiO2Content 36-66%, Al2O3Content 5.0-20%, Fe2O3Content 0.5-12%, content of MgO
0.2-10%, CaO content 0.2-10%, K2O content 0.1-4.0%, TiO2Content 0.1-15%, Na2O content 0.1-5%, surplus are
Inevitable impurity, pH value >=7.
Preferably, above-mentioned atlapulgite acid lowering agent at being grouped as are as follows: SiO2Content 36.12%, Al2O3Content 19.26%,
Fe2O3Content 8.58%, content of MgO 9.86%, CaO content 10.26%, K2O content 4.0%, TiO2Content 1.2%, Na2O content
7.65%, other impurity 3.07%, pH value 7.2.
Preferably, above-mentioned atlapulgite acid lowering agent at being grouped as are as follows: SiO2Content 59.62%, Al2O3Content 14.53%,
Fe2O3Content 2.82%, content of MgO 9.17%, CaO content 5.26%, K2O content 0.17%, TiO2Content 2.39%, Na2O content
4.45%, other impurity 1.59%, pH value 8.4.
Preferably, above-mentioned atlapulgite acid lowering agent at being grouped as are as follows: SiO2Content 47.62%, Al2O3Content 9.53%,
Fe2O3Content 0.82%, content of MgO 9.17%, CaO content 4.26%, K2O content 0.19%, TiO2Content 2.64%, Na2O content
3.45%, other impurity 22.32%, pH value 7.6.
Preferably, above-mentioned atlapulgite acid lowering agent at being grouped as are as follows: SiO2Content 48.4%, Al2O3Content 7.54%,
Fe2O3Content 6.09%, content of MgO 3.37%, CaO content 6.37%, K2O content 0.18%, TiO2Content 0.08%, Na2O content
5.75%, other impurity 22.22%, pH value 8.
Preferably, above-mentioned atlapulgite acid lowering agent at being grouped as are as follows: SiO2Content 57.76%, Al2O3Content 7.46%,
Fe2O3Content 4.48%, content of MgO 2.59%, CaO content 10.23%, K2O content 1.98%, TiO2Content 0.43%, Na2O content
1.55%, other impurity 13.52%, pH value 8.7.
Preferably, above-mentioned atlapulgite acid lowering agent at being grouped as are as follows: SiO2Content 65.77%, Al2O3Content 8.62%,
Fe2O3Content 5.18%, content of MgO 2.99%, CaO content 11.82%, K2O content 2.29%, TiO2Content 0.5%, Na2O content
1.79%, other impurity 1.04%, pH value 9.5.
Preferably, moisture content≤12% of above-mentioned atlapulgite acid lowering agent.
It is using the method that above-mentioned atlapulgite acid lowering agent prepares atlapulgite；First by clay pit through ore dressing, activation, pressure
The prefabricated material that free acid content is 0.30-2.5% is made after filter, drying, then atlapulgite acid lowering agent is added in prefabricated material and passes through
8 hours are stood after grinding and can be made into finished product, according to the content 0.30-2.5% of free acid in prefabricated material, in every 100 parts of prefabricated material
Add 1-20 parts of atlapulgite acid lowering agents.
Preferably, above-mentioned atlapulgite acid lowering agent is prepared in the method for atlapulgite, and atlapulgite acid lowering agent is added prefabricated
In material when grinding, grinding machine temperature is 30-100 DEG C.
Preferably, above-mentioned atlapulgite acid lowering agent is prepared in the method for atlapulgite, when the content of free acid in prefabricated material
When 0.30%, 1 part of atlapulgite acid lowering agent is added in every 100 parts of prefabricated material.
Preferably, above-mentioned atlapulgite acid lowering agent is prepared in the method for atlapulgite, when the content of free acid in prefabricated material
When 0.90%, 8 parts of atlapulgite acid lowering agents are added in every 100 parts of prefabricated material.
Preferably, above-mentioned atlapulgite acid lowering agent is prepared in the method for atlapulgite, when the content of free acid in prefabricated material
When 1.7%, 15 parts of atlapulgite acid lowering agents are added in every 100 parts of prefabricated material.
Preferably, above-mentioned atlapulgite acid lowering agent is prepared in the method for atlapulgite, when the content of free acid in prefabricated material
When 2.5%, 20 parts of atlapulgite acid lowering agents are added in every 100 parts of prefabricated material.
The ratio that atlapulgite acid lowering agent is added in above-mentioned prefabricated material is prioritization scheme, adds atlapulgite in actual production
The ratio of acid lowering agent, need according to free acid content in every batch of heterogeneity atlapulgite acid lowering agent, the prefabricated material of every batch of with
And in atlapulgite finished product depending on the production requirement of free acid content, when the content 0.30% of free acid in prefabricated material, every 100
20 parts of atlapulgite acid lowering agents can also be added in the prefabricated material of part；When the content 2.5% of free acid in prefabricated material, every 100 parts pre-
10 parts of atlapulgite acid lowering agents can also be only added in system material.
The beneficial effects of the present invention are: 1, simplify the conventional wet technological process of production.Use activity prepared by the present invention
Carclazyte acid lowering agent produces atlapulgite, compares conventional wet technique, eliminates the rinsing in point acid fracturing filter and finished product filters pressing process
Process shortens process flow.
2, the Con trolling index of free acid content in the prefabricated material of atlapulgite is improved.In conventional wet technique before powder-grinding process
The prefabricated material of atlapulgite in free acid content it is necessary≤0.30%, and use atlapulgite acid lowering agent prepared by the present invention produce
Atlapulgite, free acid content can be improved to 0.30-2.5% in the prefabricated material of atlapulgite, reduces and washes sour use in process early period
The processing of water and sour water and discharge load.
3, increase yield, improve benefit.Main component and atlapulgite in atlapulgite acid lowering agent prepared by the present invention
The ingredient of finished product is similar, and addition atlapulgite acid lowering agent not only increases without influence on the product quality of atlapulgite, but also directly
Add production yields, improves the performance of enterprises.
4, easy to operate, save the cost.Using atlapulgite acid lowering agent prepared by the present invention production atlapulgite compared to biography
Wet process technique of uniting is simpler, easily controllable, easy to operate, convenient for management, alleviates labor intensity of workers, saves people
Power cost；On the other hand industrial water, electricity consumption is greatly reduced, reduces sour water improvement and outlet load, reduces sour water
Treatment cost has saved charges for disposing pollutants, has good environmental benefit.
5, deacidification significant effect, strict control finished product free acid index.It is confirmed by many experiments and practice, by using
The content of free acid in the prefabricated material of atlapulgite can be greatly reduced in atlapulgite acid lowering agent prepared by the present invention.Although different
The atlapulgite acid lowering agent of composition proportion has differences in deacidification effect, but its deacidification effect is highly significant and obvious
's.The atlapulgite acid lowering agent matched by preferred component, the atlapulgite that can be completely 0.30-2.5% by free acid content
Prefabricated material deacidification free acid content≤0.3% into finished product.And the additional amount of atlapulgite acid lowering agent is according to the activity measured
In the prefabricated material of carclazyte depending on the content of free acid, free acid norm controlling in atlapulgite finished product can be made to produce to relatively accurate
Numerical value, product not only comply fully with national standard range, but also are even more that can achieve the requirement and standard that client specifies.
Specific embodiment
Understand to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is described further.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, is not limited to this hair
It is bright.
Embodiment 1.
The first atlapulgite acid lowering agent, by as follows by weight percentage at being grouped as: SiO2Content 36.12%, Al2O3
Content 19.26%, Fe2O3Content 8.58%, content of MgO 9.86%, CaO content 10.26%, K2O content 4.0%, TiO2Content 1.2%,
Na2O content 7.65%, other impurity 3.07%, pH value 7.2.
The preparation method of the first atlapulgite acid lowering agent, includes the following steps:
Step 1: raw material is chosen, and 90 parts of grey attapulgites, 5 parts of bentonites, 3 parts of kaolinites, 1 part of illite and 1 part of stone are chosen
English is basic raw material, and particulate material is made；
Step 2: grey attapulgite, bentonite, kaolinite, illite and quartz in step 1 are mixed for raw material mixing
It is formed uniformly mixture A；
Step 3: 3 part 38% of hydrochloric acid of the mixture A in step 2 and 15 parts of water are carried out room temperature acidification by acidification
Formed mixture B, acidificatoin time 72 hours；
Step 4: 2 parts of calcium hydroxides and 2 parts of sodium hydroxides are added in the mixture B into step 3 for basification, add water mixed
Conjunction stirs evenly to form mixture C, and mixture C water content is 16%；
Step 5: brilliant beam dissociation is squeezed 5 times with mixture C of the twin rollers to step 4, is carried out brilliant beam and is dissociated to form mixture D；
Step 6: the mixture D in step 5 is sent into roaster and roasted 60 minutes, 300 DEG C of temperature, formed mixed by drying roasting
Close material E；
Step 7: grinding finished product: grinding, 200 mesh of fineness are carried out to mixture E, percent of pass 90% forms final finished.
It is using the method that the first atlapulgite acid lowering agent prepares atlapulgite；First by clay pit through ore dressing, activation,
The prefabricated material that free acid content is 0.30-2.5% is made after filters pressing, drying, then atlapulgite acid lowering agent is added in prefabricated material
8 hours are stood after grinding and can be made into finished product, according to the content 0.30-2.5% of free acid in prefabricated material, every 100 parts of prefabricated material
1-20 parts of atlapulgite acid lowering agents of middle addition.
Atlapulgite finished product is made after the prefabricated material of different free acid contents is added in the first atlapulgite acid lowering agent,
Deacidification effect such as following table.
Embodiment 2.
Second of atlapulgite acid lowering agent, by as follows by weight percentage at being grouped as: SiO2Content 59.62%, Al2O3
Content 14.53%, Fe2O3Content 2.82%, content of MgO 9.17%, CaO content 5.26%, K2O content 0.17%, TiO2Content
2.39%, Na2O content 4.45%, other impurity 1.59%, pH value 8.4.
The preparation method of second of atlapulgite acid lowering agent, includes the following steps:
Step 1: raw material is chosen, and it is white to choose 90 parts of celadon attapulgites, 5 parts of bentonites, 2 parts of kaolinites, 2 parts of quartz and 1 part
Marble is basic raw material, and particulate material is made；
Step 2: celadon attapulgite, bentonite, kaolinite, quartz and dolomite in step 1 are mixed and are stirred by raw material mixing
It mixes and is formed uniformly mixture A；
Step 3: 5 part 36% of hydrochloric acid of the mixture A in step 2 and 15 parts of water are carried out room temperature acidification by acidification
Formed mixture B, acidificatoin time 80 hours；
Step 4: 3 parts of magnesium hydroxides are added in the mixture B into step 3, water is added to be mixed evenly to be formed for basification
Mixture C, mixture C water content are 10%；
Step 5: brilliant beam dissociation is squeezed 5 times with mixture C of the twin rollers to step 4, is carried out brilliant beam and is dissociated to form mixture D；
Step 6: the mixture D in step 5 is sent into roaster and roasted 60 minutes, 500 DEG C of temperature, formed mixed by drying roasting
Close material E；
Step 7: grinding finished product: grinding, 200 mesh of fineness are carried out to mixture E, percent of pass 95% forms final finished.
It is using the method that second of atlapulgite acid lowering agent prepares atlapulgite；First by clay pit through ore dressing, activation,
The prefabricated material that free acid content is 0.30-2.5% is made after filters pressing, drying, then atlapulgite acid lowering agent is added in prefabricated material
8 hours are stood after grinding and can be made into finished product, according to the content 0.30-2.5% of free acid in prefabricated material, every 100 parts of prefabricated material
1-20 parts of atlapulgite acid lowering agents of middle addition.
Atlapulgite finished product is made after the prefabricated material of different free acid contents is added in second of atlapulgite acid lowering agent,
Deacidification effect such as following table.
Embodiment 3.
Third atlapulgite acid lowering agent, by as follows by weight percentage at being grouped as: SiO2Content 47.62%, Al2O3Contain
Measure 9.53%, Fe2O3Content 0.82%, content of MgO 9.17%, CaO content 4.26%, K2O content 0.19%, TiO2Content 2.64%,
Na2O content 3.45%, other impurity 22.32%, pH value 7.6.
The preparation method of the third atlapulgite acid lowering agent, includes the following steps:
Step 1: raw material is chosen, and chooses 90 parts of canescence attapulgites, 5 parts of bentonites, 3 parts of kaolinites, 1 part of quartz and 1 part long
Stone is basic raw material, and particulate material is made；
Step 2: canescence attapulgite, bentonite, kaolinite, quartz and feldspar in step 1 are mixed for raw material mixing
It is formed uniformly mixture A；
Step 3: acidification carries out 10 part 37% of hydrochloric acid of the mixture A in step 2 and 15 parts of water at room temperature acidification
It manages and forms mixture B, acidificatoin time 75 hours；
Step 4: 5 parts of calcium hydroxides are added in the mixture B into step 3, water is added to be mixed evenly to be formed for basification
Mixture C, mixture C water content are 20%；
Step 5: brilliant beam dissociation is squeezed 2 times with mixture C of the twin rollers to step 4, is carried out brilliant beam and is dissociated to form mixture D；
Step 6: drying, and the mixture D in step 5 is dried, moisture content 11.8；
Step 7: grinding finished product: grinding, 200 mesh of fineness are carried out to mixture D, percent of pass 90% forms final finished.
It is using the method that the third atlapulgite acid lowering agent prepares atlapulgite；First by clay pit through ore dressing, activation,
The prefabricated material that free acid content is 0.30-2.5% is made after filters pressing, drying, then atlapulgite acid lowering agent is added in prefabricated material
8 hours are stood after grinding and can be made into finished product, according to the content 0.30-2.5% of free acid in prefabricated material, every 100 parts of prefabricated material
1-20 parts of atlapulgite acid lowering agents of middle addition.
Atlapulgite finished product is made after the prefabricated material of different free acid contents is added in the third atlapulgite acid lowering agent,
Deacidification effect such as following table.
Embodiment 4.
4th atlapulgite acid lowering agent, by as follows by weight percentage at being grouped as: SiO2Content 48.4%, Al2O3Contain
Measure 7.54%, Fe2O3Content 6.09%, content of MgO 3.37%, CaO content 6.37%, K2O content 0.18%, TiO2Content 0.08%,
Na2O content 5.75%, other impurity 22.22%, pH value 8.
The preparation method of 4th kind of atlapulgite acid lowering agent, includes the following steps:
Step 1: raw material is chosen, and 90 parts of red attapulgite soil, 5 parts of bentonites, 2 parts of kaolinites, 1 part of quartz and 2 parts of feldspars are chosen
Particulate material is made；
Step 2: raw material mixing red attapulgite soil, bentonite, kaolinite, quartz and feldspar in step 1 is mixed equal
Even formation mixture A；
Step 3: 3 part 98% of sulfuric acid of the mixture A in step 2 and 15 parts of water are carried out room temperature acidification by acidification
Formed mixture B, acidificatoin time 82 hours；
Step 4: 2 parts of sodium hydroxides are added in the mixture B into step 3, water is added to be mixed evenly to be formed for basification
Mixture C, mixture C water content are 15%；
Step 5: brilliant beam dissociation is squeezed 3 times with mixture C of the twin rollers to step 4, is carried out brilliant beam and is dissociated to form mixture D；
Step 6: drying, and the mixture D in step 5 is dried, moisture content 10.3；
Step 7: grinding finished product: grinding, 200 mesh of fineness are carried out to mixture D, percent of pass 90% forms final finished.
It is using the method that the 4th kind of atlapulgite acid lowering agent prepares atlapulgite；First by clay pit through ore dressing, activation,
The prefabricated material that free acid content is 0.30-2.5% is made after filters pressing, drying, then atlapulgite acid lowering agent is added in prefabricated material
8 hours are stood after grinding and can be made into finished product, according to the content 0.30-2.5% of free acid in prefabricated material, every 100 parts of prefabricated material
1-20 parts of atlapulgite acid lowering agents of middle addition.
Atlapulgite finished product is made after the prefabricated material of different free acid contents is added in 4th kind of atlapulgite acid lowering agent,
Deacidification effect such as following table.
Embodiment 5.
5th atlapulgite acid lowering agent, by as follows by weight percentage at being grouped as: SiO2Content 57.76%, Al2O3Contain
Measure 7.46%, Fe2O3Content 4.48%, content of MgO 2.59%, CaO content 10.23%, K2O content 1.98%, TiO2Content 0.43%,
Na2O content 1.55%, other impurity 13.52%, pH value 8.7.
The preparation method of 5th kind of atlapulgite acid lowering agent, includes the following steps:
Step 1: raw material is chosen, and chooses 90 parts of celadon attapulgites, 5 parts of bentonites, 5 parts of kaolinites and particulate material is made；
Step 2: raw material mixing, celadon attapulgite, bentonite and kaolinite in step 1 are mixed evenly to be formed it is mixed
Close material A；
Step 3: 5 part 98% of sulfuric acid of the mixture A in step 2 and 15 parts of water are carried out room temperature acidification by acidification
Formed mixture B, acidificatoin time 90 hours；
Step 4: 3 parts of sodium hydroxides are added in the mixture B into step 3, water is added to be mixed evenly to be formed for basification
Mixture C, mixture C water content are 19%；
Step 5: brilliant beam dissociation is squeezed 3 times with mixture C of the twin rollers to step 4, is carried out brilliant beam and is dissociated to form mixture D；
Step 6: drying, and the mixture D in step 5 is dried, moisture content 10.1；
Step 7: grinding finished product: grinding, 200 mesh of fineness are carried out to mixture D, percent of pass 90% forms final finished.
It is using the method that the 5th kind of atlapulgite acid lowering agent prepares atlapulgite；First by clay pit through ore dressing, activation,
The prefabricated material that free acid content is 0.30-2.5% is made after filters pressing, drying, then atlapulgite acid lowering agent is added in prefabricated material
8 hours are stood after grinding and can be made into finished product, according to the content 0.30-2.5% of free acid in prefabricated material, every 100 parts of prefabricated material
10-20 parts of atlapulgite acid lowering agents of middle addition.
Atlapulgite finished product is made after the prefabricated material of different free acid contents is added in 5th kind of atlapulgite acid lowering agent,
Deacidification effect is as follows:
Embodiment 6.
6th atlapulgite acid lowering agent, by as follows by weight percentage at being grouped as: SiO2 content 65.77%, Al2O3
Content 8.62%, Fe2O3 content 5.18%, content of MgO 2.99%, CaO content 11.82%, K2O content 2.29%, TiO2 content
0.5%, Na2O content 1.79%, other impurity 1.04%, pH value 9.5.
The preparation method of 6th kind of atlapulgite acid lowering agent, includes the following steps:
Step 1: raw material is chosen, and chooses 90 parts of celadon attapulgites, 5 parts of bentonites, 5 parts of kaolinites and particulate material is made；
Step 2: raw material mixing, celadon attapulgite, bentonite and kaolinite in step 1 are mixed evenly to be formed it is mixed
Close material A；
Step 3: 5 part 98% of sulfuric acid of the mixture A in step 2 and 15 parts of water are carried out room temperature acidification by acidification
Formed mixture B, acidificatoin time 95 hours；
Step 4: 5 parts of sodium hydroxides are added in the mixture B into step 3, water is added to be mixed evenly to be formed for basification
Mixture C, mixture C water content are 20%；
Step 5: brilliant beam dissociation is squeezed 3 times with mixture C of the twin rollers to step 4, is carried out brilliant beam and is dissociated to form mixture D；
Step 6: the mixture D in step 5 is sent into roaster and roasted 90 minutes, 350 DEG C of temperature, formed mixed by drying roasting
Close material E；
Step 7: grinding finished product: grinding, 200 mesh of fineness are carried out to mixture D, percent of pass 90% forms final finished.
It is using the method that the 6th kind of atlapulgite acid lowering agent prepares atlapulgite；By clay pit through ore dressing, activation, pressure
The prefabricated material that free acid content is 0.30-2.5% is made after filter, drying, then atlapulgite acid lowering agent is added in prefabricated material and passes through
8 hours are stood after grinding and can be made into finished product, according to the content 0.30-2.5% of free acid in prefabricated material, in every 100 parts of prefabricated material
Add 1-20 parts of atlapulgite acid lowering agents.
Atlapulgite finished product is made after the prefabricated material of different free acid contents is added in 6th kind of atlapulgite acid lowering agent
Effect such as following table.
Due to the mineral such as the attapulgite of different sources, bentonite, kaolinite, illite, quartz, dolomite, feldspar at
Divide different from, producing atlapulgite acid lowering agent ingredient according to the raw material of above-described embodiment, slightly different, but overall all at this
In the protection scope of invention.
The foregoing is merely a kind of preferred embodiments of the invention, are not intended to restrict the invention, all in the present invention
Spirit and principle within any modifications, equivalent replacements, and improvements etc. done, should be included in protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of preparation method of atlapulgite acid lowering agent, includes the following steps:
Step 1: raw material is chosen, and chooses 90 parts of attapulgites, 5 parts of bentonites and 5 parts of ingredients as basic raw material；
Step 2: raw material mixing is mixed evenly attapulgite, bentonite and ingredient in step 1 to form mixture A；
Step 3: the mixture A in step 2 is carried out room temperature acidification with 1-10 parts of acid and 15 parts of water and is formed by acidification
Mixture B, acidificatoin time >=72 hour；
Step 4: 1-5 parts of alkali is added in the mixture B into step 3 for basification, add water be mixed evenly to be formed it is mixed
Material C is closed, mixture C water content is 10-20%；
Step 5: brilliant beam dissociation is repeatedly extruded with mixture C of the twin rollers to step 4, is carried out brilliant beam and is dissociated to form mixture
D；
Step 6: drying roasting, by step 5 mixture D be sent into roaster roast 30-90 minutes, 300-500 DEG C of temperature,
Form mixture E；
Step 7: grinding finished product: grinding, 200 mesh of fineness are carried out to mixture E, percent of pass >=90% forms final finished.
2. a kind of preparation method of atlapulgite acid lowering agent according to claim 1, which is characterized in that in the step 1
Ingredient be one or more of kaolinite, illite, quartz, dolomite, feldspar combination material.
3. a kind of preparation method of atlapulgite acid lowering agent according to claim 1, which is characterized in that in the step 3
It is sulfuric acid or hydrochloric acid with acid.
4. a kind of preparation method of atlapulgite acid lowering agent according to claim 3, which is characterized in that the sulfuric acid is
98% sulfuric acid.
5. a kind of preparation method of atlapulgite acid lowering agent according to claim 3, which is characterized in that the hydrochloric acid is
The hydrochloric acid of 36-38%.
6. a kind of preparation method of atlapulgite acid lowering agent according to claim 1, which is characterized in that in the step 4
It is sodium hydroxide, calcium hydroxide or magnesium hydroxide with alkali.
7. a kind of preparation method of atlapulgite acid lowering agent according to claim 1, which is characterized in that in the step 5
It is 2-5 times that twin rollers, which squeeze mixture C,.
8. a kind of preparation method of atlapulgite acid lowering agent according to claim 1, which is characterized in that the step 6 can
Using drying, mixture E moisture content≤12% after drying.
9. a kind of preparation method of atlapulgite acid lowering agent according to claim 1, which is characterized in that in the step 7
Grinding is carried out to mixture E using Raymond mill.
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| US5008226A (en) * | 1989-05-16 | 1991-04-16 | Engelhard Corporation | Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product |
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|---|---|---|---|---|
| US5008226A (en) * | 1989-05-16 | 1991-04-16 | Engelhard Corporation | Process for making acid activated bleaching earth using high susceptibility source clay and novel bleaching earth product |
| CN1236732A (en) * | 1999-04-21 | 1999-12-01 | 首都师范大学 | Process for preparing active hargil by wet method |
| CN105565331A (en) * | 2015-12-21 | 2016-05-11 | 罗永城 | Preparation method of alkaline porcelain clay |
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| 张寒冰等: "碱性钙基膨润土的制备及其应用研究进展", 《化工进展》 * |
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