CN115350686A - Meglumine modified attapulgite, preparation method and application thereof - Google Patents
Meglumine modified attapulgite, preparation method and application thereof Download PDFInfo
- Publication number
- CN115350686A CN115350686A CN202210982627.6A CN202210982627A CN115350686A CN 115350686 A CN115350686 A CN 115350686A CN 202210982627 A CN202210982627 A CN 202210982627A CN 115350686 A CN115350686 A CN 115350686A
- Authority
- CN
- China
- Prior art keywords
- attapulgite
- meglumine
- dispersing
- precipitate
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
-
- 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
-
- 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
- C02F2101/108—Boron compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a preparation method of meglumine modified attapulgite, which comprises the following steps: preparing acidified attapulgite; dispersing attapulgite or acidified attapulgite in a solvent, adding epoxy silane, heating for reflux reaction, cooling, centrifuging to obtain a precipitate, dispersing the precipitate in the solvent, centrifuging to obtain a precipitate, and drying to obtain epoxysilanized attapulgite; dispersing the epoxy silanized attapulgite in water, introducing nitrogen, adding meglumine, heating for reaction, heating for continuous reaction, dispersing the reaction product in deionized water, centrifuging to obtain precipitate, and drying to obtain the meglumine modified attapulgite. The attapulgite composite material prepared by the invention is used as a boron adsorbent for drinking water, irrigation water, geothermal water and saltThe boron removal or extraction from lake brine and industrial wastewater has excellent adsorption effect, and can be used for removing or extracting HBO at pH of 1-14 and temperature of 0-80 deg.C 2 The adsorption capacity of the adsorbent can reach more than 120 mg/g.
Description
Technical Field
The invention belongs to the technical field of boron adsorbents, and particularly relates to a meglumine modified attapulgite, and a preparation method and application thereof.
Background
Boron has an atomic number of 5, is in the third main group of the periodic table of elements, and was first discovered by hummphry Davy, lussac, and therard to exist primarily as a trivalent borate in aqueous environments. However, as boron products are consumed continuously, seawater and rivers are enriched with a large amount of boron, for example, the boron content in seawater is about 4.5-5mg/L, the boron concentration in surface water is about 0.3-100mg/L, and water is a main substance on which life bodies depend to live, which brings a certain threat to normal metabolism. Therefore, for human health and ecosystem balance, the boron content in the water used must be reduced below a certain concentration.
The ortho-position or meta-position hydroxyl can be chelated with boric acid or borate to form stable five-membered or six-membered cyclic ester (as shown in the figure), and research shows that the prepared material with the polyhydroxy functional group has excellent chelating performance on borate. The current research results mainly take meglumine, mannitol, catechol and glycidol as functional monomers to modify a framework material to prepare the functional material, and particularly, the target product taking the meglumine as the functional monomer has relatively outstanding boron adsorption performance. Tural and the like graft meglumine on the surface of magnetic nanoparticles by using a click chemistry method to obtain a novel efficient nano adsorbent, and the adsorption capacity can reach 13.44mg/g. Wu and other chitosan modified by meglumine grafted epichlorohydrin, and the maximum adsorption capacity of the material to boron can reach 20.36mg/g. Although the meglumine modified functional material has good boron adsorption performance, the boron selenium drum has relatively small capacity and large practical application limit, mainly because the grafting rate of the meglumine is relatively low due to the properties of a framework material, such as specific surface area or grafting capacity, so that the adsorption performance of the material is influenced.
Attapulgite is a crystalline hydrated magnesium aluminum silicate mineral with unique layer chain structure characteristics, and has lattice displacement in its structure, with variable Na content in the crystal + 、Ca 2+ 、Fe 3+ 、Al 3+ The crystals are needle-shaped, fibrous or fibrous aggregates. The attapulgite has good colloidal properties of unique dispersion, high temperature resistance, salt and alkali resistance and the like and higher adsorption decoloring capacity. And has certain plasticity and adhesive force and an intermediate structure between the chain structure and the layered structure. The attapulgite clay can be regenerated in the adsorption process or the sewage treatment process, so that the method has low energy consumption and is very favorable for environmental protection. The research of the invention finds that the attapulgite/acidified attapulgite clay is based on larger specific surface area and rod-shaped form with nanometer size, the attapulgite/acidified attapulgite clay can be firstly silanized and modified with silane coupling agent with epoxy group, a large amount of epoxy groups can be endowed on the surface of the attapulgite clay, and the epoxy groups can generate ring-opening reaction with active H of meglumine NH, so that the meglumine is grafted on the surface of the attapulgite clay to obtain the meglumine modified attapulgite clay.
In particular, how to develop a meglumine modified attapulgite with excellent adsorption effect by utilizing the attapulgite, and a preparation method and application thereof are technical problems which need to be solved by technical personnel in the field.
Disclosure of Invention
In view of the above, the invention provides a meglumine modified attapulgite, a preparation method and application thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of meglumine modified attapulgite comprises the following steps:
(1) Dispersing attapulgite in a hydrochloric acid solution, heating for reflux, centrifuging to obtain a precipitate, washing with deionized water, and drying to obtain acidified attapulgite;
(2) Dispersing attapulgite or acidified attapulgite in a solvent, adding epoxy silane, heating for reflux reaction, cooling, centrifuging to obtain precipitate, dispersing the precipitate in the solvent, centrifuging to obtain precipitate, and drying to obtain epoxy silanized attapulgite;
(3) Dispersing the epoxy silanized attapulgite in water, introducing nitrogen, adding meglumine, heating for reaction, heating for continuous reaction, dispersing the reaction product in deionized water, centrifuging to obtain precipitate, and drying to obtain the meglumine modified attapulgite.
Further, in the step (1), the mass ratio of the attapulgite to the hydrochloric acid solution is 10-600, the concentration of the hydrochloric acid solution is 1.5-3mol/L, the heating temperature is 70-90 ℃, and the reflux time is 1-3h.
Further, in the step (1), the dispersion speed is 200-1000r/min, and the dispersion time is 30min-2h; centrifuging to obtain precipitate, washing with deionized water, and repeating for 2-5 times; the centrifugal speed is 1000-10000r/min, and the centrifugal time is 3-20min; the drying temperature is 100-200 deg.C, and the drying time is 1-6h.
Further, in the step (2), the epoxy silane is any one of 3-glycidyloxypropyltrimethoxysilane, triethoxy (3-glycidyloxypropyl) silane, 3- [ (2, 3) -glycidoxy ] propylmethyldimethoxysilane, diethoxy (3-glycidyloxypropyl) methylsilane, and 2- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane.
Further, in the step (2), the solvent is any one of ethanol, acetonitrile, N-Dimethylformamide (DMF) and Dimethylsulfoxide (DMSO).
Further, the mass ratio of the attapulgite or the acidified attapulgite to the epoxy silane in the step (2) is 10-15; the heating temperature is 70-90 ℃, and the reflux reaction time is 6-12h.
Further, in the step (2), every 10g of attapulgite or acidified attapulgite is dispersed in 150-300mL of solvent; the dispersion speed is 200-1000r/min, and the dispersion time is 30min-2h; cooling to room temperature, centrifuging at 1000-10000r/min for 3-20min to obtain precipitate;
further, dispersing the precipitate in a solvent in the step (2), centrifuging to obtain the precipitate, repeating for 2-5 times, wherein the dispersing speed is 100-1000r/min, and the dispersing time is 1-10min; the centrifugal speed is 1000-10000r/min, and the centrifugal time is 3-20min; the drying temperature is 100-200 deg.C, and the drying time is 1-6h.
Further, in the step (3), the mass ratio of the epoxy silanized attapulgite to the meglumine is 10-5; each 10g of the epoxy silanized attapulgite is dispersed in 200-400mL of water.
Further, the nitrogen is introduced in the step (3) for 20-40min.
Further, in the step (3), the heating temperature is 30-50 ℃, the reaction time is 6-10h, and the temperature is raised to 60-70 ℃ to continue the reaction for 4-8h.
Further, in the step (3), the epoxy silanized attapulgite is dispersed in the solvent, the dispersion speed is 100-1000r/min, and the dispersion time is 30min-2h.
Further, in the step (3), the reaction product is dispersed in deionized water, and is centrifuged to obtain a precipitate, the reaction is repeated for 2-5 times, the dispersion speed is 100-1000r/min, the dispersion time is 1-10min, the centrifugation speed is 1000-10000r/min, the centrifugation time is 3-20min, the drying temperature is 100-200 ℃, and the drying time is 1-6h.
The invention also provides the meglumine modified attapulgite prepared by the preparation method.
The invention also provides application of the meglumine modified attapulgite in removal or extraction of boron in drinking water, irrigation water, geothermal water, salt lake brine and industrial wastewater.
The invention has the beneficial effects that: based on the larger specific surface area and the rod-shaped form with the nanometer size of the attapulgite/the acidified attapulgite, the attapulgite/the acidified attapulgite can be firstly silanized and modified with a silane coupling agent with epoxy groups, so that a large number of epoxy groups can be endowed on the surface of the attapulgite, and the epoxy groups can generate a ring-opening reaction with active H of meglumine NH, thereby grafting the meglumine on the surface of the attapulgite to obtain the meglumine modified attapulgite. The meglumine modified attapulgite prepared by the invention is used as a boron adsorbent, is used for removing or extracting boron in drinking water, irrigation water, geothermal water, salt lake brine and industrial wastewater, has excellent adsorption effect, and can achieve the adsorption quantity of HBO2 of more than 120mg/g under the conditions that the pH is 1-14 and the temperature is 0-80 ℃.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
The preparation method of the meglumine modified attapulgite comprises the following steps:
(1) Dispersing 10g of attapulgite in 200mL of ethanol, wherein the dispersion speed is 200r/min, the dispersion time is 2h, adding 6g of 3-glycidyloxypropyltrimethoxysilane, heating to reflux at 70 ℃ for 12h, cooling to room temperature, centrifuging to obtain a precipitate, wherein the centrifugation speed is 10000r/min, the centrifugation time is 3min, dispersing the precipitate in 200mL of ethanol, centrifuging to obtain the precipitate, repeating the steps for 3 times, wherein the dispersion speed is 300r/min, and the dispersion time is 8min; the centrifugal speed is 10000r/min, and the centrifugal time is 3min; drying at 120 ℃ for 4h to obtain epoxy silanized attapulgite;
(2) Dispersing 10g of epoxy silanized attapulgite in 200mL of water at the dispersion speed of 100r/min for 2h, introducing nitrogen for 20min, adding 2g of meglumine, heating to react at the temperature of 50 ℃ for 6h, heating to 60 ℃ for continuing to react for 8h, dispersing the reaction product in 200mL of deionized water, centrifuging to obtain a precipitate, repeating the reaction for 3 times at the dispersion speed of 800r/min for 2min, at the centrifugal rotation speed of 8000r/min for 5min, and drying at 120 ℃ for 4h to obtain the meglumine modified attapulgite.
The attapulgite composite material prepared by the method is used as a boron adsorbent for removing or extracting boron in salt lake brine, has excellent adsorption effect, and can be used for HBO under the conditions that the pH is 9.2 and the temperature is 0 DEG C 2 The adsorption capacity of the adsorbent can reach 159mg/g.
Example 2
The preparation method of the meglumine modified attapulgite comprises the following steps:
(1) Dispersing 10g of attapulgite in 150mL of acetonitrile at a dispersion speed of 1000r/min for 30min, adding 8g of triethoxy (3-epoxypropyloxypropyl) silane, heating at 80 ℃ for reflux reaction for 8h, cooling to room temperature, centrifuging to obtain a precipitate, dispersing the precipitate in 150mL of acetonitrile at a centrifugation speed of 1000r/min for 20min, centrifuging to obtain a precipitate, repeating the steps for 2 times at a dispersion speed of 1000r/min for 1min; the centrifugal speed is 1000r/min, and the centrifugal time is 20min; drying for 1h at 200 ℃ to obtain epoxy silanized attapulgite;
(2) Dispersing 10g of epoxy silanized attapulgite in 350mL of water at the dispersion speed of 1000r/min for 30min, introducing nitrogen for 30min, adding 4g of meglumine, heating to react at the temperature of 30 ℃ for 6h, heating to 70 ℃ for continuing to react for 4h, dispersing the reaction product in 100mL of deionized water, centrifuging to obtain a precipitate, repeating the reaction for 2 times at the dispersion speed of 500r/min for 5min at the centrifugal rotation speed of 5000r/min for 10min, and drying at 200 ℃ for 1h to obtain the meglumine modified attapulgite.
The attapulgite composite material prepared by the method is used as a boron adsorbent for removing or extracting boron in irrigation water, has excellent adsorption effect, and can be used for HBO under the conditions of pH 7.5 and temperature 25 DEG C 2 The adsorption capacity of the adsorbent can reach 143mg/g.
Example 3
The preparation method of the meglumine modified attapulgite comprises the following steps:
(1) Dispersing 10g of attapulgite in 600g of hydrochloric acid solution with the concentration of 1.5mol/L at the dispersion speed of 500r/min for 1.5h, heating and refluxing at 80 ℃ for 2h, centrifuging to obtain a precipitate, washing with deionized water, repeating for 2 times, centrifuging at the rotation speed of 3000r/min for 15min, and drying at 180 ℃ for 2h to obtain the acidified attapulgite;
(2) Dispersing 10g of acidified attapulgite in 300ml DMF at a dispersion speed of 800r/min for 1h, adding 10g of 3- [ (2, 3) -glycidoxy ] propyl-methyl-dimethoxysilane, heating at 85 ℃ for reflux reaction for 6h, cooling to room temperature, centrifuging to obtain a precipitate, wherein the centrifugation speed is 6000r/min and the centrifugation time is 8min, dispersing the precipitate in 100ml DMF, centrifuging to obtain a precipitate, repeating the steps for 4 times, wherein the dispersion speed is 100r/min and the dispersion time is 10min; the centrifugal speed is 4000r/min, and the centrifugal time is 12min; drying for 6h at 100 ℃ to obtain epoxy silanized attapulgite;
(3) Dispersing 10g of epoxy silanized attapulgite in 250mL of water at the dispersion speed of 800r/min for 1h, introducing nitrogen for 25min, adding 3g of meglumine, heating to react at the temperature of 35 ℃ for 8h, heating to 65 ℃ for continuing to react for 6h, dispersing the reaction product in 100mL of deionized water, centrifuging to obtain a precipitate, repeating the reaction for 4 times at the dispersion speed of 100r/min for 10min, at the centrifugal rotation speed of 4000r/min for 12min, and drying at 100 ℃ for 6h to obtain the meglumine modified attapulgite.
The attapulgite composite material prepared by the method is used as a boron adsorbent for removing or extracting boron in industrial wastewater, has excellent adsorption effect, and can be used for treating HBO under the conditions of pH of 13 and temperature of 80 DEG C 2 The adsorption capacity of the adsorbent can reach 148mg/g.
Example 4
The preparation method of the meglumine modified attapulgite comprises the following steps:
(1) Dispersing 10g of attapulgite in 400g of hydrochloric acid solution with the concentration of 2mol/L, wherein the dispersion speed is 400r/min, the dispersion time is 1.5h, heating and refluxing for 1h at 90 ℃, centrifuging to obtain a precipitate, washing with deionized water, repeating for 4 times, centrifuging at the rotation speed of 4000r/min for 12min, and drying for 3h at 150 ℃ to obtain the acidified attapulgite;
(2) Dispersing 10g of acidified attapulgite in 250ml of mixed base oil in a stirring manner at a dispersion speed of 400r/min for 1.5h, adding 12g of diethoxy (3-glycidyloxypropyl) methylsilane, heating at 80 ℃ for reflux reaction for 10h, cooling to room temperature, centrifuging to obtain a precipitate at a centrifugation speed of 4000r/min for 12min, dispersing the precipitate in 150ml of mixed base oil in a stirring manner, centrifuging to obtain a precipitate, repeating the steps for 4 times at a dispersion speed of 400r/min for 6min; the centrifugal speed is 4000r/min, and the centrifugal time is 12min; drying for 3h at 150 ℃ to obtain epoxy silanized attapulgite;
(3) Dispersing 10g of epoxy silanized attapulgite in 400mL of water at the dispersion speed of 400r/min for 1.5h, introducing nitrogen for 35min, adding 5g of meglumine, heating to react at the temperature of 40 ℃ for 6h, heating to 65 ℃ for continuing to react for 6h, dispersing the reaction product in 200mL of deionized water, centrifuging to obtain a precipitate, repeating the reaction for 5 times at the dispersion speed of 400r/min for 8min, at the centrifugal rotation speed of 4000r/min for 12min, and drying at 150 ℃ for 3h to obtain the meglumine modified attapulgite.
The attapulgite composite material prepared by the method is used as a boron adsorbent for removing or extracting boron in industrial wastewater, has excellent adsorption effect, and can be used for treating HBO under the conditions of pH of 3 and temperature of 25 DEG C 2 The adsorption capacity of the adsorbent can reach 133mg/g.
Example 5
The preparation method of the meglumine modified attapulgite comprises the following steps:
(1) Dispersing 10g of attapulgite in 300g of hydrochloric acid solution with the concentration of 3mol/L, wherein the dispersion speed is 600r/min, the dispersion time is 1.5h, heating and refluxing at 70 ℃ for 3h, centrifuging to obtain a precipitate, washing with deionized water, repeating for 5 times, wherein the centrifugal speed is 5000r/min, the centrifugal time is 10min, and drying at 160 ℃ for 3h to obtain the acidified attapulgite;
(2) Dispersing 10g of acidified attapulgite in 250mL of ethanol at a dispersion speed of 300r/min for 2h, adding 15g of 2- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane, heating at 90 ℃ for reflux reaction for 8h, cooling to room temperature, centrifuging to obtain a precipitate, wherein the centrifugation speed is 5000r/min, the centrifugation time is 5min, dispersing the precipitate in 175mL of ethanol, centrifuging to obtain the precipitate, repeating for 5 times, wherein the dispersion speed is 500r/min, and the dispersion time is 5min; the centrifugal speed is 5000r/min, and the centrifugal time is 10min; drying for 3h at 160 ℃ to obtain epoxy silanized attapulgite;
(3) Dispersing 10g of epoxy silanized attapulgite in 300mL of water at the dispersion speed of 300r/min for 2h, introducing nitrogen for 40min, adding 5g of meglumine, heating to react at the temperature of 30 ℃ for 8h, heating to 70 ℃ for continuing to react for 4h, dispersing the reaction product in 175mL of deionized water, centrifuging to obtain a precipitate, repeating the reaction for 3 times at the dispersion speed of 500r/min for 5min, at the centrifugal rotation speed of 5000r/min for 10min, and drying at 160 ℃ for 3h to obtain the meglumine modified attapulgite.
Attapulgite composite material prepared by the above methodThe material is used as boron adsorbent for removing or extracting boron in geothermal water, has excellent adsorption effect, and can adsorb HBO at pH of 8.1 and temperature of 60 deg.C 2 The adsorption capacity of the adsorbent can reach 171mg/g.
The description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The preparation method of the meglumine modified attapulgite is characterized by comprising the following steps:
(1) Dispersing attapulgite in a hydrochloric acid solution, heating for reflux, centrifuging to obtain a precipitate, washing with deionized water, and drying to obtain acidified attapulgite;
(2) Dispersing attapulgite or acidified attapulgite in a solvent, adding epoxy silane, heating for reflux reaction, cooling, centrifuging to obtain precipitate, dispersing the precipitate in the solvent, centrifuging to obtain precipitate, and drying to obtain epoxy silanized attapulgite;
(3) Dispersing the epoxy silanized attapulgite in water, introducing nitrogen, adding meglumine, heating for reaction, heating for continuous reaction, dispersing the reaction product in deionized water, centrifuging to obtain precipitate, and drying to obtain the meglumine modified attapulgite.
2. The method for preparing the meglumine modified attapulgite according to claim 1, characterized in that the mass ratio of the attapulgite to the hydrochloric acid solution in the step (1) is 10-300-600, the concentration of the hydrochloric acid solution is 1.5-3mol/L, the heating temperature is 70-90 ℃, and the reflux time is 1-3h.
3. The method for preparing meglumine modified attapulgite clay according to claim 1, wherein the epoxy silane in step (2) is any one of 3-glycidyloxypropyltrimethoxysilane, triethoxy (3-glycidyloxypropyl) silane, 3- [ (2, 3) -glycidoxy ] propylmethyldimethoxysilane, diethoxy (3-glycidyloxypropyl) methylsilane, and 2- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane.
4. The method for preparing meglumine modified attapulgite according to claim 1, wherein the solvent in step (2) is any one of ethanol, acetonitrile, N-dimethylformamide and dimethylsulfoxide.
5. The method for preparing the meglumine modified attapulgite according to claim 1, characterized in that the weight ratio of the attapulgite or the acidified attapulgite to the epoxy silane in the step (2) is 10-15; the heating temperature is 70-90 ℃, and the reflux reaction time is 6-12h.
6. The method for preparing the meglumine modified attapulgite according to claim 1, characterized in that the mass ratio of the epoxy silanized attapulgite to the meglumine in the step (3) is 10-5; each 10g of the epoxy silanized attapulgite is dispersed in 200-400mL of water.
7. The method for preparing meglumine modified attapulgite according to claim 1, wherein the nitrogen gas is introduced in the step (3) for 20-40min.
8. The method for preparing the meglumine modified attapulgite according to claim 1, characterized in that the heating temperature in the step (3) is 30-50 ℃, the reaction time is 6-10h, and the temperature is raised to 60-70 ℃ for continuous reaction for 4-8h.
9. A meglumine modified attapulgite prepared by the preparation method of any one of claims 1-8.
10. Use of the meglumine-modified attapulgite of claim 9 for the removal or extraction of boron from drinking water, irrigation water, geothermal water, salt lake brine, and industrial wastewater.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210982627.6A CN115350686A (en) | 2022-08-16 | 2022-08-16 | Meglumine modified attapulgite, preparation method and application thereof |
| ZA2023/07704A ZA202307704B (en) | 2022-08-16 | 2023-08-04 | Meglumine modified attapulgite, and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210982627.6A CN115350686A (en) | 2022-08-16 | 2022-08-16 | Meglumine modified attapulgite, preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115350686A true CN115350686A (en) | 2022-11-18 |
Family
ID=84001439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210982627.6A Pending CN115350686A (en) | 2022-08-16 | 2022-08-16 | Meglumine modified attapulgite, preparation method and application thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115350686A (en) |
| ZA (1) | ZA202307704B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005238087A (en) * | 2004-02-26 | 2005-09-08 | Kurita Water Ind Ltd | Boron adsorbent and its producing method |
| CN101607190A (en) * | 2009-07-28 | 2009-12-23 | 淮阴工学院 | A kind of preparation of attapulgite of selectively absorbing tannin |
| CN104226263A (en) * | 2014-09-29 | 2014-12-24 | 陕西科技大学 | Method I for preparing amino-modified attapulgite adsorbent and method II for removing hexavalent chromium from water |
| CN106179249A (en) * | 2016-08-22 | 2016-12-07 | 中国科学院广州能源研究所 | A kind of preparation method of attapulgite cellulose composite adsorption microsphere |
-
2022
- 2022-08-16 CN CN202210982627.6A patent/CN115350686A/en active Pending
-
2023
- 2023-08-04 ZA ZA2023/07704A patent/ZA202307704B/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005238087A (en) * | 2004-02-26 | 2005-09-08 | Kurita Water Ind Ltd | Boron adsorbent and its producing method |
| CN101607190A (en) * | 2009-07-28 | 2009-12-23 | 淮阴工学院 | A kind of preparation of attapulgite of selectively absorbing tannin |
| CN104226263A (en) * | 2014-09-29 | 2014-12-24 | 陕西科技大学 | Method I for preparing amino-modified attapulgite adsorbent and method II for removing hexavalent chromium from water |
| CN106179249A (en) * | 2016-08-22 | 2016-12-07 | 中国科学院广州能源研究所 | A kind of preparation method of attapulgite cellulose composite adsorption microsphere |
Non-Patent Citations (2)
| Title |
|---|
| LU XU等: "Synthesis, characterization and application of a novel silica based adsorbent for boron removal", 《DESALINATION》, vol. 294, pages 1 - 7, XP028416453, DOI: 10.1016/j.desal.2012.02.030 * |
| 徐璐 等: "一种硅胶负载葡甲胺新型吸附剂的合成及其对硼吸附性能的研究", 《中国稀土学报》, vol. 30, pages 622 - 627 * |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA202307704B (en) | 2024-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109385254B (en) | Graphene elastic polymer phase-change composite material and preparation method thereof | |
| CN103341346B (en) | The preparation method of a kind of manganese ferrite nanoparticle and graphene complex | |
| CN103480333A (en) | Compound grapheme absorption agent, method for preparing compound grapheme absorption agent and application of compound grapheme absorption agent | |
| CN104403275B (en) | A kind of modified graphene/thermoset ting resin composite and preparation method thereof | |
| CN101591044A (en) | Be used to handle the metal oxide nano-material and preparation method and the purposes that contain dyestuff or effluent containing heavy metal ions | |
| CN109999809B (en) | Preparation method and application of iron oxide @ biomass carbon fiber @ pDA-PVDF photo-Fenton composite bead | |
| CN108636357A (en) | A kind of use in waste water treatment cross-linking type graphite oxide aerogel and preparation method thereof | |
| CN106378093A (en) | Preparation method and application of magnetic hollow graphene-based composite microsphere material | |
| CN106430144A (en) | Method for preparing asphalt-based hierarchical porous carbon sheet based on sheet-shaped magnesium oxide template and application thereof | |
| CN111229154A (en) | MgFe2O4/Fe2O3Composite and preparation method and application thereof | |
| CN114797781A (en) | Preparation method of lanthanum-loaded nitrogen-doped porous carbon-phosphorus adsorption material | |
| CN115350686A (en) | Meglumine modified attapulgite, preparation method and application thereof | |
| Sun et al. | Confined synthesis of g-C3N4 modified porous carbons for efficient removal of Cd ions | |
| CN110528170A (en) | A kind of compound nonwoven cloth of photocatalytic self-cleaning and preparation method thereof | |
| CN110624574B (en) | Double Bi4O5I2Preparation method of photocatalytic material and application of photocatalytic material in degrading MC-LR | |
| CN111804300A (en) | Ozone oxidation catalyst for advanced treatment of organic wastewater and preparation method thereof | |
| CN106935417A (en) | A kind of preparation method and applications of super capacitor material | |
| CN106517467A (en) | Composite polyferric sulfate flocculating agent containing activated carbon and preparation method of composite polyferric sulfate flocculating agent | |
| CN110560035A (en) | Bi2O3Montmorillonite composite photocatalytic material and preparation method thereof | |
| CN113522338B (en) | Application of boron-oxygen co-doped carbon nitride non-metallic ozone catalyst | |
| CN115814829A (en) | Co and Mo 2 C-codoped biochar-based composite material and preparation method and application thereof | |
| CN102247797A (en) | Preparation method of attapulgite/zirconia composite defluorinating material | |
| CN101884903A (en) | Method for preparing organobentonite | |
| CN102923720A (en) | Method for preparing nanometer white carbon black through comprehensively utilizing sodium chloride wastewater | |
| CN113750951A (en) | Preparation method of phosphorus nitride with high efficiency and selectivity and application of phosphorus nitride in uranium pollution removal and uranium extraction from seawater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |