CN105561937A - Preparation method of modified bentonite loaded chitosan adsorption material - Google Patents
Preparation method of modified bentonite loaded chitosan adsorption material Download PDFInfo
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- CN105561937A CN105561937A CN201510997527.0A CN201510997527A CN105561937A CN 105561937 A CN105561937 A CN 105561937A CN 201510997527 A CN201510997527 A CN 201510997527A CN 105561937 A CN105561937 A CN 105561937A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/46—Materials comprising a mixture of inorganic and organic materials
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
Abstract
The invention relates to a preparation method of a modified bentonite loaded chitosan adsorption material, and belongs to the technical field of adsorption materials. Aiming at the problems that conventional bentonite has large specific surface area and good adsorption properties, but granular bentonite has larger particle size, is easy to settle in water and has low strength, so as to affect application of the granular bentonite in wastewater treatment, the preparation method comprises the steps: firstly, carrying out surface modification of bentonite; then mixing the bentonite with nitrilortiacetic acid and carbon suboxide, and modifying an internal structure of the bentonite at high temperature to increase the electrovalence unsaturation of bentonite crystal cells; next, carrying out biological modification of the bentonite, to increase the adsorption capacity; and finally mixing the modified bentonite with chitosan, under laser irradiation, combining positive charges of the chitosan with negative charges of the bentonite, and thus preparing the modified bentonite loaded chitosan adsorption material. The material is not easy to settle in water and high in strength.
Description
Technical field
The present invention relates to a kind of preparation method of modified alta-mud loadedization shitosan sorbing material, belong to sorbing material technical field.
Background technology
China's bentonite resource enriches, and Regional Distribution is wide, and prediction resource reserve, more than 8,000,000,000 tons, ranks first in the world; Proved reserves are 24.6 hundred million tons, account for 60% of the world.Bentonite belongs to layer aluminosilicate clay mineral, be exploitation both at home and abroad the earliest, one of most widely used nonmetallic mineral, have the title of " omnipotent clay ".Bentonite has the excellent physical and chemical performance such as cation exchange, water swellability, thixotropy, dispersion suspension, adsorptivity, caking property and plasticity, low diffusivity, hypotonicity, chemical stability, heat endurance, is widely used in the fields such as environmental protection, pharmaceutic adjuvant, catalyst and carrier, oil, casting, metallurgy, building, agricultural, animal husbandry, cosmetics of everyday use.
Bentonite specific area is large, absorption property good, and as adsorbent, have at process waste water, exhaust emission the advantage that the cost of raw material is low, adsorption efficiency is high, therefore, the application of bentonite in environmental improvement obtains attention.But particle bentonite has larger particle diameter, free settling in water, but particle bentonite intensity is not high, have impact on the application in the treatment of waste water of particle bentonite, and particle bentonite is also more weak to the pollutant adsorption capacity in waste water.
Summary of the invention
Technical problem to be solved by this invention: although large for current bentonite specific area, absorption property is good, but particle bentonite has larger particle diameter, free settling in water, but particle bentonite intensity is not high, have impact on the problem of particle bentonite application in the treatment of waste water, first the present invention carries out surface modification to bentonite, again by itself and nitrilotriacetic acid and carbon suboxide, at high temperature modification is carried out to bentonite internal structure, increase bentonite structure cell electricity price unsaturated, and then carried out bio-modification, increase its adsorption capacity, finally it is mixed with shitosan, under laser irradiates, combined by negative electrical charge in shitosan positive charge and bentonite, prepare a kind of modified alta-mud loadedization shitosan sorbing material, this material not free settling and intensity is high in water.
For solving the problems of the technologies described above, the present invention adopts technical scheme as described below to be:
(1) get 500 ~ 800g bentonite to put into pulverizer and pulverize, sieve to obtain 50 ~ 60 order bentonite clay particles, put it into subsequently in the beaker of 500mL, add hydrochloric acid solution immersion particle and 20 ~ 25g neopelex that mass fraction is 30% more wherein, stir, then beaker is moved in ultrasonic cleaning instrument, under frequency is 25 ~ 28KHz, vibration 30 ~ 45min;
(2) filter after above-mentioned vibration terminates, collect filtrate by itself and 10 ~ 15g nitrilotriacetic acid and 5 ~ 8g carbon suboxide, mix in a reservoir, mixture is put into calcining furnace, at temperature is 600 ~ 700 DEG C, calcining 30 ~ 40min, be cooled to room temperature subsequently, taken out, put into pulverizer and pulverize, sieve to obtain the preliminary bentone soil particle of 70 ~ 80 order;
(3) the preliminary bentone soil particle of the above-mentioned gained of 300 ~ 400g is got, with Nafusaku 4:1 in mass ratio, mix in a reservoir, subsequently to adding the sodium chloride solution that 700 ~ 800mL mass fraction is 0.7% in container, with rotating speed 300 ~ 500r/min, carry out rapid stirring 15 ~ 20min, after end to be mixed, obtain modified mixture, use the syringe of 15mL to be injected in rush by modified mixture from the root of the rush with bud, every rush injection 15mL;
(4) the rush Post flowering after above-mentioned injection, its rush is gathered in, chopper is used to be cut to the long rush particle for 1cm subsequently, be soaked in water again and rotted, filtered after it rots completely, then used the flushed screening of water 4 ~ 6 times, remove impurity again, collect bentonite clay particle, collected bentonite clay particle is put into air-dry machine and carries out air-dry, obtain modified alta-mud;
(5) modified alta-mud taking the above-mentioned gained of 150 ~ 200g is put into and is filled the beaker that 400 ~ 500mL mass fraction is the acetum of 32%, add 180 ~ 230g shitosan wherein again, the sodium hydroxide solution of 1.2mol/L is used to regulate pH to be 5.0 ~ 5.5, then use agitator with rotating speed 200 ~ 230r/min, stir 50 ~ 70min;
(6) beaker is moved in laser impact intensified device after above-mentioned stirring terminates, single pulse energy is set as 10 ~ 15J, pulse width set is 15 ~ 20ns, repetition rate is 3Hz, after placing 2 ~ 4min, beaker is taken out, mixture in it is put into centrifuge and carries out centrifugation, collect centrifugal thing, and use deionized water to wash 3 ~ 4 times, moved in baking oven subsequently and dried, then taken out and put into pulverizing and pulverize, sieve to obtain 100 ~ 120 order modified alta-mud loadedization shitosan sorbing materials.
Application process of the present invention: modified alta-mud loadedization shitosan sorbing material the present invention obtained is applied in wastewater treatment, in the wastewater disposal basin of 5m × 4m, chrome content in wastewater measurement is 100 ~ 150mg/L, then the dosage of sorbing material is 5 ~ 8g/L, after stirring 30 ~ 40min, static 10 ~ 15min again, record the chrome content 1 ~ 3mg/L in the rear water of process, clearance reaches more than 97%.
Beneficial effect of the present invention:
(1) the not free settling and intensity is high in water of the modified alta-mud loadedization shitosan sorbing material obtained by the present invention;
(2) the modified alta-mud loadedization shitosan sorbing material cost of manufacture obtained by the present invention is low, is easy to operation.
Detailed description of the invention
Get 500 ~ 800g bentonite to put into pulverizer and pulverize, sieve to obtain 50 ~ 60 order bentonite clay particles, put it into subsequently in the beaker of 500mL, add hydrochloric acid solution immersion particle and 20 ~ 25g neopelex that mass fraction is 30% more wherein, stir, then beaker is moved in ultrasonic cleaning instrument, under frequency is 25 ~ 28KHz, vibration 30 ~ 45min; Filter after above-mentioned vibration terminates, collect filtrate by itself and 10 ~ 15g nitrilotriacetic acid and 5 ~ 8g carbon suboxide, mix in a reservoir, mixture is put into calcining furnace, at temperature is 600 ~ 700 DEG C, calcining 30 ~ 40min, be cooled to room temperature subsequently, taken out, put into pulverizer and pulverize, sieve to obtain the preliminary bentone soil particle of 70 ~ 80 order; Get the preliminary bentone soil particle of the above-mentioned gained of 300 ~ 400g, with Nafusaku 4:1 in mass ratio, mix in a reservoir, subsequently to adding the sodium chloride solution that 700 ~ 800mL mass fraction is 0.7% in container, with rotating speed 300 ~ 500r/min, carry out rapid stirring 15 ~ 20min, after end to be mixed, obtain modified mixture, use the syringe of 15mL to be injected in rush by modified mixture from the root of the rush with bud, every rush injection 15mL; Rush Post flowering after above-mentioned injection, its rush is gathered in, chopper is used to be cut to the long rush particle for 1cm subsequently, be soaked in water again and rotted, filtered after it rots completely, then used the flushed screening of water 4 ~ 6 times, remove impurity again, collect bentonite clay particle, collected bentonite clay particle is put into air-dry machine and carries out air-dry, obtain modified alta-mud;
The modified alta-mud taking the above-mentioned gained of 150 ~ 200g is put into and is filled the beaker that 400 ~ 500mL mass fraction is the acetum of 32%, add 180 ~ 230g shitosan wherein again, the sodium hydroxide solution of 1.2mol/L is used to regulate pH to be 5.0 ~ 5.5, then use agitator with rotating speed 200 ~ 230r/min, stir 50 ~ 70min; Beaker is moved in laser impact intensified device after above-mentioned stirring terminates, single pulse energy is set as 10 ~ 15J, pulse width set is 15 ~ 20ns, repetition rate is 3Hz, after placing 2 ~ 4min, beaker is taken out, mixture in it is put into centrifuge and carries out centrifugation, collect centrifugal thing, and use deionized water to wash 3 ~ 4 times, moved in baking oven subsequently and dried, then taken out and put into pulverizing and pulverize, sieve to obtain 100 ~ 120 order modified alta-mud loadedization shitosan sorbing materials.
Example 1
Get 600g bentonite to put into pulverizer and pulverize, sieve to obtain 60 order bentonite clay particles, put it into subsequently in the beaker of 500mL, add hydrochloric acid solution immersion particle and 22g neopelex that mass fraction is 30% more wherein, stir, then beaker is moved in ultrasonic cleaning instrument, under frequency is 26KHz, vibration 35min; Filter after above-mentioned vibration terminates, collect filtrate by itself and 12g nitrilotriacetic acid and 6g carbon suboxide, mix in a reservoir, mixture is put into calcining furnace, at temperature is 650 DEG C, calcining 35min, be cooled to room temperature subsequently, taken out, put into pulverizer and pulverize, sieve to obtain the preliminary bentone soil particle of 80 order; Get the preliminary bentone soil particle of the above-mentioned gained of 350g, with Nafusaku 4:1 in mass ratio, mix in a reservoir, subsequently to adding the sodium chloride solution that 750mL mass fraction is 0.7% in container, with rotating speed 400r/min, carry out rapid stirring 18min, after end to be mixed, obtain modified mixture, use the syringe of 15mL to be injected in rush by modified mixture from the root of the rush with bud, every rush injection 15mL; Rush Post flowering after above-mentioned injection, its rush is gathered in, chopper is used to be cut to the long rush particle for 1cm subsequently, be soaked in water again and rotted, filtered after it rots completely, then used the flushed screening of water 5 times, remove impurity again, collect bentonite clay particle, collected bentonite clay particle is put into air-dry machine and carries out air-dry, obtain modified alta-mud; The modified alta-mud taking the above-mentioned gained of 170g is put into and is filled the beaker that 450mL mass fraction is the acetum of 32%, add 200g shitosan wherein again, use the sodium hydroxide solution of 1.2mol/L to regulate pH to be 5.0, then use agitator with rotating speed 210r/min, stir 60min; Beaker is moved in laser impact intensified device after above-mentioned stirring terminates, single pulse energy is set as 12J, pulse width set is 18ns, and repetition rate is 3Hz, is taken out by beaker after placing 3min, mixture in it is put into centrifuge and carries out centrifugation, collect centrifugal thing, and use deionized water to wash 3 times, moved in baking oven subsequently and dry, then taken out and put into pulverizing and pulverize, sieve to obtain 110 order modified alta-mud loadedization shitosan sorbing materials.
Modified alta-mud loadedization shitosan sorbing material the present invention obtained is applied in wastewater treatment, in the wastewater disposal basin of 5m × 4m, chrome content in wastewater measurement is 100mg/L, then the dosage of sorbing material is 5g/L, after stirring 30min, static 10min again, record the chrome content 1mg/L in the rear water of process, clearance reaches 99%.
Example 2
Get 800g bentonite to put into pulverizer and pulverize, sieve to obtain 60 order bentonite clay particles, put it into subsequently in the beaker of 500mL, add hydrochloric acid solution immersion particle and 25g neopelex that mass fraction is 30% more wherein, stir, then beaker is moved in ultrasonic cleaning instrument, under frequency is 28KHz, vibration 45min; Filter after above-mentioned vibration terminates, collect filtrate by itself and 15g nitrilotriacetic acid and 8g carbon suboxide, mix in a reservoir, mixture is put into calcining furnace, at temperature is 700 DEG C, calcining 40min, be cooled to room temperature subsequently, taken out, put into pulverizer and pulverize, sieve to obtain the preliminary bentone soil particle of 80 order; Get the preliminary bentone soil particle of the above-mentioned gained of 400g, with Nafusaku 4:1 in mass ratio, mix in a reservoir, subsequently to adding the sodium chloride solution that 800mL mass fraction is 0.7% in container, with rotating speed 500r/min, carry out rapid stirring 20min, after end to be mixed, obtain modified mixture, use the syringe of 15mL to be injected in rush by modified mixture from the root of the rush with bud, every rush injection 15mL; Rush Post flowering after above-mentioned injection, its rush is gathered in, chopper is used to be cut to the long rush particle for 1cm subsequently, be soaked in water again and rotted, filtered after it rots completely, then used the flushed screening of water 6 times, remove impurity again, collect bentonite clay particle, collected bentonite clay particle is put into air-dry machine and carries out air-dry, obtain modified alta-mud; The modified alta-mud taking the above-mentioned gained of 200g is put into and is filled the beaker that 500mL mass fraction is the acetum of 32%, add 230g shitosan wherein again, use the sodium hydroxide solution of 1.2mol/L to regulate pH to be 5.5, then use agitator with rotating speed 230r/min, stir 70min; Beaker is moved in laser impact intensified device after above-mentioned stirring terminates, single pulse energy is set as 15J, pulse width set is 20ns, and repetition rate is 3Hz, is taken out by beaker after placing 4min, mixture in it is put into centrifuge and carries out centrifugation, collect centrifugal thing, and use deionized water to wash 4 times, moved in baking oven subsequently and dry, then taken out and put into pulverizing and pulverize, sieve to obtain 120 order modified alta-mud loadedization shitosan sorbing materials.
Modified alta-mud loadedization shitosan sorbing material the present invention obtained is applied in wastewater treatment, in the wastewater disposal basin of 5m × 4m, chrome content in wastewater measurement is 150mg/L, then the dosage of sorbing material is 8g/L, after stirring 40min, static 15min again, record the chrome content 3mg/L in the rear water of process, clearance reaches 98%.
Example 3
Get 500g bentonite to put into pulverizer and pulverize, sieve to obtain 50 order bentonite clay particles, put subsequently in the beaker of mL, add hydrochloric acid solution immersion particle and 20g neopelex that mass fraction is 30% more wherein, stir, then beaker is moved in ultrasonic cleaning instrument, under frequency is 25KHz, vibration 30min; Filter after above-mentioned vibration terminates, collect filtrate by itself and 10g nitrilotriacetic acid and 5g carbon suboxide, mix in a reservoir, mixture is put into calcining furnace, at temperature is 600 ~ 700 DEG C, calcining 30min, be cooled to room temperature subsequently, taken out, put into pulverizer and pulverize, sieve to obtain the preliminary bentone soil particle of 70 order; Get the preliminary bentone soil particle of the above-mentioned gained of 300g, with Nafusaku 4:1 in mass ratio, mix in a reservoir, subsequently to adding the sodium chloride solution that 700mL mass fraction is 0.7% in container, with rotating speed 300r/min, carry out rapid stirring 15min, after end to be mixed, obtain modified mixture, use the syringe of 15mL to be injected in rush by modified mixture from the root of the rush with bud, every rush injection 15mL; Rush Post flowering after above-mentioned injection, its rush is gathered in, chopper is used to be cut to the long rush particle for 1cm subsequently, be soaked in water again and rotted, filtered after it rots completely, then used the flushed screening of water 4 times, remove impurity again, collect bentonite clay particle, collected bentonite clay particle is put into air-dry machine and carries out air-dry, obtain modified alta-mud; The modified alta-mud taking the above-mentioned gained of 150g is put into and is filled the beaker that 400mL mass fraction is the acetum of 32%, add 180g shitosan wherein again, use the sodium hydroxide solution of 1.2mol/L to regulate pH to be 5.0, then use agitator with rotating speed 200r/min, stir 50min; Beaker is moved in laser impact intensified device after above-mentioned stirring terminates, single pulse energy is set as 10J, pulse width set is 15ns, and repetition rate is 3Hz, is taken out by beaker after placing 2min, mixture in it is put into centrifuge and carries out centrifugation, collect centrifugal thing, and use deionized water to wash 3 times, moved in baking oven subsequently and dry, then taken out and put into pulverizing and pulverize, sieve to obtain 100 order modified alta-mud loadedization shitosan sorbing materials.
Modified alta-mud loadedization shitosan sorbing material the present invention obtained is applied in wastewater treatment, in the wastewater disposal basin of 5m × 4m, chrome content in wastewater measurement is 130mg/L, then the dosage of sorbing material is 7g/L, after stirring 40min, static 12min again, record the chrome content 2mg/L in the rear water of process, clearance reaches 98.4%.
Claims (1)
1. a preparation method for modified alta-mud loadedization shitosan sorbing material, is characterized in that concrete preparation method is:
(1) get 500 ~ 800g bentonite to put into pulverizer and pulverize, sieve to obtain 50 ~ 60 order bentonite clay particles, put it into subsequently in the beaker of 500mL, add hydrochloric acid solution immersion particle and 20 ~ 25g neopelex that mass fraction is 30% more wherein, stir, then beaker is moved in ultrasonic cleaning instrument, under frequency is 25 ~ 28KHz, vibration 30 ~ 45min;
(2) filter after above-mentioned vibration terminates, collect filtrate by itself and 10 ~ 15g nitrilotriacetic acid and 5 ~ 8g carbon suboxide, mix in a reservoir, mixture is put into calcining furnace, at temperature is 600 ~ 700 DEG C, calcining 30 ~ 40min, be cooled to room temperature subsequently, taken out, put into pulverizer and pulverize, sieve to obtain the preliminary bentone soil particle of 70 ~ 80 order;
(3) the preliminary bentone soil particle of the above-mentioned gained of 300 ~ 400g is got, with Nafusaku 4:1 in mass ratio, mix in a reservoir, subsequently to adding the sodium chloride solution that 700 ~ 800mL mass fraction is 0.7% in container, with rotating speed 300 ~ 500r/min, carry out rapid stirring 15 ~ 20min, after end to be mixed, obtain modified mixture, use the syringe of 15mL to be injected in rush by modified mixture from the root of the rush with bud, every rush injection 15mL;
(4) the rush Post flowering after above-mentioned injection, its rush is gathered in, chopper is used to be cut to the long rush particle for 1cm subsequently, be soaked in water again and rotted, filtered after it rots completely, then used the flushed screening of water 4 ~ 6 times, remove impurity again, collect bentonite clay particle, collected bentonite clay particle is put into air-dry machine and carries out air-dry, obtain modified alta-mud;
(5) modified alta-mud taking the above-mentioned gained of 150 ~ 200g is put into and is filled the beaker that 400 ~ 500mL mass fraction is the acetum of 32%, add 180 ~ 230g shitosan wherein again, the sodium hydroxide solution of 1.2mol/L is used to regulate pH to be 5.0 ~ 5.5, then use agitator with rotating speed 200 ~ 230r/min, stir 50 ~ 70min;
(6) beaker is moved in laser impact intensified device after above-mentioned stirring terminates, single pulse energy is set as 10 ~ 15J, pulse width set is 15 ~ 20ns, repetition rate is 3Hz, after placing 2 ~ 4min, beaker is taken out, mixture in it is put into centrifuge and carries out centrifugation, collect centrifugal thing, and use deionized water to wash 3 ~ 4 times, moved in baking oven subsequently and dried, then taken out and put into pulverizing and pulverize, sieve to obtain 100 ~ 120 order modified alta-mud loadedization shitosan sorbing materials.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105836822A (en) * | 2016-05-31 | 2016-08-10 | 陈萍 | Special sewage treatment agent for aluminum product processing and preparation method of special sewage treatment agent for aluminum product processing |
| CN106118421A (en) * | 2016-07-19 | 2016-11-16 | 陈毅忠 | A kind of method preparing anticorrosive paint based on composite modified bentonite granule |
| CN108246260A (en) * | 2016-12-28 | 2018-07-06 | 海门市源美美术图案设计有限公司 | A kind of bentonite of surface modification and its preparation method and application |
| CN108503001A (en) * | 2018-04-09 | 2018-09-07 | 长沙秋点兵信息科技有限公司 | A kind of novel water pollution renovation agent and preparation method thereof |
| CN109482154A (en) * | 2018-12-06 | 2019-03-19 | 武汉纺织大学 | A kind of preparation method of Dye Adsorption material |
| CN114557341A (en) * | 2022-03-01 | 2022-05-31 | 苏州乙水茉生物科技有限公司 | Modified grafted bentonite nanoparticle loaded with gamma-polyglutamic acid and application thereof |
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2015
- 2015-12-28 CN CN201510997527.0A patent/CN105561937A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105836822A (en) * | 2016-05-31 | 2016-08-10 | 陈萍 | Special sewage treatment agent for aluminum product processing and preparation method of special sewage treatment agent for aluminum product processing |
| CN105836822B (en) * | 2016-05-31 | 2018-11-27 | 贵州华泰中信科技有限公司 | A kind of dedicated sewage-treating agent of aluminium product and preparation method thereof |
| CN106118421A (en) * | 2016-07-19 | 2016-11-16 | 陈毅忠 | A kind of method preparing anticorrosive paint based on composite modified bentonite granule |
| CN108246260A (en) * | 2016-12-28 | 2018-07-06 | 海门市源美美术图案设计有限公司 | A kind of bentonite of surface modification and its preparation method and application |
| CN108503001A (en) * | 2018-04-09 | 2018-09-07 | 长沙秋点兵信息科技有限公司 | A kind of novel water pollution renovation agent and preparation method thereof |
| CN108503001B (en) * | 2018-04-09 | 2020-10-27 | 安徽金兄弟环保科技股份有限公司 | Novel water pollution remediation agent and preparation method thereof |
| CN109482154A (en) * | 2018-12-06 | 2019-03-19 | 武汉纺织大学 | A kind of preparation method of Dye Adsorption material |
| CN114557341A (en) * | 2022-03-01 | 2022-05-31 | 苏州乙水茉生物科技有限公司 | Modified grafted bentonite nanoparticle loaded with gamma-polyglutamic acid and application thereof |
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Application publication date: 20160511 |