CN104289174A - Preparation method of ionic liquid loaded type bentonite absorbent - Google Patents

Preparation method of ionic liquid loaded type bentonite absorbent Download PDF

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CN104289174A
CN104289174A CN201410456860.6A CN201410456860A CN104289174A CN 104289174 A CN104289174 A CN 104289174A CN 201410456860 A CN201410456860 A CN 201410456860A CN 104289174 A CN104289174 A CN 104289174A
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bentonite
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CN104289174B (en
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李慧芝
李志英
孙旦子
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University of Jinan
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12Naturally occurring clays or bleaching earth
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/281Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/285Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00Aspects relating to sorbent materials
    • B01J2220/40Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/46Materials comprising a mixture of inorganic and organic materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00Aspects relating to sorbent materials
    • B01J2220/40Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48Sorbents characterised by the starting material used for their preparation
    • B01J2220/4806Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00Aspects relating to sorbent materials
    • B01J2220/40Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/20Heavy metals or heavy metal compounds

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Abstract

The invention discloses a preparation method of a brominated 1-ethyl-3-methylimidazole ionic liquid loaded type bentonite absorbent, and is characterized in that the preparation method comprises the steps: firstly, drying bentonite in a 105 DEG C drying oven, and crushing by a ball mill; then, carrying out a reaction on a brominated 1-ethyl-3-methylimidazole ionic liquid with 3-aminopropyltriethoxysilane, and thus obtaining a solid product which is a modified ionic liquid; thirdly, according to the mass percentage concentration, adding 40%-52% of the brominated 1-ethyl-3-methylimidazole ionic liquid and 48%-60% of the 3-aminopropyltriethoxysilane into a reactor, wherein the sum of the percentages of all the components is 100%; and mixing evenly, at a constant temperature of 100 DEG C, carrying out a reaction for 9-11 h, cooling to a room temperature, and thus obtaining a solid product which is the modified ionic liquid. The adsorbent has the advantages of quite high adsorption capacity on hexavalent chromium, excellent physicochemical and mechanical properties, strong regeneration ability, capacity of being repeatedly used many times, low cost, greenness and environmental protection.

Description

A kind of preparation method of ionic liquid loaded type bentone adsorbent
Technical field
The present invention relates to a kind of preparation method of biological adsorption agent and environment thereof and Application in Chemical Engineering field, the particularly preparation method of the ionic liquid loaded type bentone adsorbent of a kind of 1-ethyl-3-methyllimidazolium bromide and the application technology to Cr VI absorption in water.
Background technology
The clay rock that bentonite is is essential mineral with montmorillonite (Montmorillonite).Montmorillonite is a kind of moisture layer aluminosilicate mineral, and its most of character is decided by the character of montmorillonite, with its chemical composition and internal structure closely related.The chemical composition of montmorillonite is: (Al 2mg 3) Si 4o 10oH 2nH 2o, is made up of two silicon-oxy tetrahedron therebetween aluminium (magnesium) oxygen (hydrogen-oxygen) octahedron, belongs to the three-layer clay mineral of 2: 1 types.Lattice spacing is from being 0.96 ~ 2.14nm, and these nanoscale twins are reunited together, forms hundreds of nanometer to the clay particle of several microns.The hydrophily extremely strong due to bentonite surface silicon oxide structure and the hydrolysis of interlayer cation.Bentonite has the abundant physical characteristic such as water swellability, dispersiveness, caking property, plasticity, colloidality, rheological characteristic, thixotropy, alkali exchangeability (cation exchange), adsorptivity, fire resistance, lubricity.But the non-constant of performance of the bentonite adsorption process organic pollution of non-modified, natural montmorillonite is generally based on calcium-base bentonite, and physico-chemical property is not very desirable, therefore needs deep processing just can be further improved.And bentonitic rich reserves, source is wide, processing cost is low, therefore removes the pollutant in waste water with modified alta-mud, there is huge economic results in society and ecological environment benefit.
Ionic liquid is generally that inorganic anion that, structure asymmetric organic cation (as imidazoles, pyridine) relatively large by specific volume and volume are relatively little is (as Cl -, Br -deng) material be in a liquid state under room temperature or nearly room temperature that forms.Ionic liquid at room temperature is a kind of fine solvent, can dissolve polarity and nonpolar organic matter, inorganic matter, is easy to be separated, and can be recycled.Its liquid state range is very wide, without vapour pressure, non-volatile, can not environmental pollution be caused, be described as green solvent.
Carry out immobilizedly can obtaining the solid matter that supported ion liquid or surface have ionic liquid structure to ionic liquid.This had both combined the advantage of solid support material, also solve ionic liquid and be applied to losing issue in water environment, maintain again the physics and chemistry character of ionic liquid itself simultaneously, solve the residual and toxicity problem of ionic liquid in extract preferably, with in being separated of extract, solvent cross pollution, also there is obvious advantage.Supported ion liquid is prepared absorption and is had been reported, Wang Ruonan etc. have studied load imidazole type ion liquid silica gel and inhale material preparation (Wang Ruonan etc., the research of load imidazole type ion liquid silica gel suction material preparations and applicatio, Chinese environmental detection, 2013,29(2): 69 ~ 72); Peng Changhong etc. have studied ionic liquid loaded type carbon nanotube adsorption except triclosan (; The long grand plasma fluid load type carbon nanotube adsorption of Peng is except triclosan research, Central South University's journal (natural science edition), 2010,41(2): 416 ~ 421), triclosan is waited have studied in doughnut supported ionic liquid liquid microextraction method testing environment water body in river quietly, and (river is waited quietly, the triclosan in doughnut supported ionic liquid liquid microextraction method testing environment water body, analytical chemistry, 2012,40(8) 1257 ~ 1261); But ionic liquid supported is had no report to the absorption of hexavalent chromium ions in sewage on bentonite.
Chromium mainly occurs with metal grid, trivalent chromium and Cr VI three kinds of forms, and commercial Application with hexavalent chromium compound how.As the manufacture of ink dye agent paint pigment, the cleaning of the process hides of chromium method, alumite and other metal, pre-galvanized and plating, wooden woods conservation treatment and anticorrisive agent and some catalyst etc.Along with the fast development of economy, the industrial consumption of chromium also increases thereupon, the a large amount of chromyl waste water of enterprise's discharge, not only pollute water source, huge threat is constituted to water quality, soil and Environmental security, and maximum to human health damage, and hexavalent chromium compound has carcinogenic, teratogenesis, mutagenic effect " three cause " pollutant, it can also cause allergic, genetic defect, containing hexavalent chromium compound discharge of wastewater to human body and environmentally friendly property very big.The processing method of chromate waste water is a lot, can cause the common concern of numerous environmentalists by the Cr VI effectively removed in waste water, traditional heavy metal chromium ion waste water treatment technology comprises chemical precipitation, ion-exchange, electrochemical process, hyperfiltration, absorption method etc.Absorption method is the effectively method of one of process heavy metal ion-containing waste water, has the advantages such as simple to operate, expense is low, adsorbent can be reused.
 
Summary of the invention
An object of the present invention is to provide the preparation method of the ionic liquid loaded type bentone adsorbent of a kind of 1-ethyl-3-methyllimidazolium bromide, and a kind of 1-ethyl-3-methyllimidazolium bromide ionic liquid loaded type bentone adsorbent of acquisition carries out adsorbing separation to chromic in water body.
Object of the present invention is achieved through the following technical solutions.
A preparation method for the ionic liquid loaded type bentone adsorbent of 1-ethyl-3-methyllimidazolium bromide, is characterised in that the method has following processing step:
(1) bentonite pretreatment: bentonite is dried in 105 DEG C of drying boxes, is pulverized with ball mill, grinding, by 200 object sieve, obtains pretreatment bentonite;
(2) ion liquid modified: in the reactor, add by following composition mass percentage concentration, 1-ethyl-3-methyllimidazolium bromide ionic liquid: 40% ~ 52%, APTES: 48% ~ 60%, each component sum is absolutely, mixes, in 100 DEG C of isothermal reaction 9 ~ 11h, cooling room temperature, obtaining solid product is modified ionic liquid;
(3) ionic liquid loaded type bentone adsorbent preparation: in the reactor, adds by following composition mass percentage concentration, modified ionic liquid: 2% ~ 8%, absolute ethyl alcohol: 77% ~ 90%, stirring and dissolving, then add pretreatment bentonite: 4% ~ 14%, in 55 ± 2 DEG C of constant temperature, stirring and refluxing reaction 5 ~ 7 h, taking-up is cooled to room temperature, continues stirring reaction 24 h, and rotary distillation is except desolventizing, put into oven for drying, namely obtain ionic liquid loaded type bentone adsorbent.
Bentonite described above is calcium-base bentonite.
1-ethyl-3-methyllimidazolium bromide ionic liquid described in step (2) and the mass ratio of APTES are optimum in the scope of 1:1.1 ~ 1.2.
Described modified ionic liquid and the bentonitic mass ratio of pretreatment are optimum in the scope of 1:1.9 ~ 2.1 in step (3).
Another object of the present invention is to provide the ionic liquid loaded type bentone adsorbent of a kind of 1-ethyl-3-methyllimidazolium bromide and adsorbs Cr VI in water body, its feature is: the ionic liquid loaded type bentone adsorbent deionized water prepared is soaked 1 ~ 2h, adsorbs by static method.
The ionic liquid loaded type bentone adsorbent deionized water prepared is soaked 1 ~ 2h, adsorbs by dynamic method.
Compared with the prior art, tool has the following advantages and beneficial effect in the present invention:
(1) the ionic liquid loaded type bentone adsorbent that the present invention obtains has good physical and chemical stability and excellent mechanical strength, adsorption capacity is large, maximum adsorption capacity reaches 78.22 mg/g, mechanical strength is high, wear-resistingly can reach more than 10 times by Reusability number of times, the speed of absorption is fast, and desorption performance is good, can use within the scope of wider soda acid.
(2) the ionic liquid loaded type bentone adsorbent that the present invention obtains both had had the advantage of solid support material, also solved ionic liquid and was applied to losing issue in water environment.
(3) condition of the process entails synthesized easily controls, and energy consumption is low, simple to operate, belongs to process for cleanly preparing, is easy to suitability for industrialized production.
(4) the present invention obtain ionic liquid loaded type bentone adsorbent raw material easily obtains, cost is low, environmentally safe.
Detailed description of the invention
Embodiment 1
(1) bentonite pretreatment: bentonite is dried in 105 DEG C of drying boxes, is pulverized with ball mill, grinding, by 200 object sieve, obtains pretreatment bentonite;
(2) ion liquid modified: in the reactor, add 1-ethyl-3-methyllimidazolium bromide ionic liquid respectively: 5.0g, APTES: 5.0g, mix, in 100 DEG C of isothermal reaction 10h, cooling room temperature, obtaining solid product is modified ionic liquid;
(3) ionic liquid loaded type bentone adsorbent preparation: in the reactor, add respectively, modified ionic liquid: 10g, absolute ethyl alcohol: 250mL, stirring and dissolving, then add pretreatment bentonite: 20g, in 55 ± 2 DEG C of constant temperature, stirring and refluxing reacts 6 h, taking-up is cooled to room temperature, continues stirring reaction 24 h, and rotary distillation is except desolventizing, put into oven for drying, namely obtain ionic liquid loaded type bentone adsorbent.
Embodiment 2
(1) bentonite pretreatment: bentonite is dried in 105 DEG C of drying boxes, is pulverized with ball mill, grinding, by 200 object sieve, obtains pretreatment bentonite;
(2) ion liquid modified: in the reactor, add 1-ethyl-3-methyllimidazolium bromide ionic liquid respectively: 4.5g, APTES: 5.5g, mix, in 100 DEG C of isothermal reaction 9h, cooling room temperature, obtaining solid product is modified ionic liquid;
(3) ionic liquid loaded type bentone adsorbent preparation: in the reactor, add respectively, modified ionic liquid: 5g, absolute ethyl alcohol: 110mL, stirring and dissolving, then add pretreatment bentonite: 9.5g, in 55 ± 2 DEG C of constant temperature, stirring and refluxing reacts 5 h, taking-up is cooled to room temperature, continues stirring reaction 24 h, and rotary distillation is except desolventizing, put into oven for drying, namely obtain ionic liquid loaded type bentone adsorbent.
Embodiment 3
(1) bentonite pretreatment: bentonite is dried in 105 DEG C of drying boxes, is pulverized with ball mill, grinding, by 200 object sieve, obtains pretreatment bentonite;
(2) ion liquid modified: in the reactor, add 1-ethyl-3-methyllimidazolium bromide ionic liquid respectively: 4.8g, APTES: 5.2g, mix, in 100 DEG C of isothermal reaction 11h, cooling room temperature, obtaining solid product is modified ionic liquid;
(3) ionic liquid loaded type bentone adsorbent preparation: in the reactor, add respectively, modified ionic liquid: 2.5g, absolute ethyl alcohol: 60mL, stirring and dissolving, then add pretreatment bentonite: 7g, in 55 ± 2 DEG C of constant temperature, stirring and refluxing reaction 7h, taking-up is cooled to room temperature, continues stirring reaction 24 h, and rotary distillation is except desolventizing, put into oven for drying, namely obtain ionic liquid loaded type bentone adsorbent.
Embodiment 4
(1) bentonite pretreatment: bentonite is dried in 105 DEG C of drying boxes, is pulverized with ball mill, grinding, by 200 object sieve, obtains pretreatment bentonite;
(2) ion liquid modified: in the reactor, add 1-ethyl-3-methyllimidazolium bromide ionic liquid respectively: 4.7g, APTES: 5.3g, mix, in 100 DEG C of isothermal reaction 10h, cooling room temperature, obtaining solid product is modified ionic liquid;
(3) ionic liquid loaded type bentone adsorbent preparation: in the reactor, add respectively, modified ionic liquid: 4g, absolute ethyl alcohol: 200mL, stirring and dissolving, then add pretreatment bentonite: 10g, in 55 ± 2 DEG C of constant temperature, stirring and refluxing reacts 6 h, taking-up is cooled to room temperature, continues stirring reaction 24 h, and rotary distillation is except desolventizing, put into oven for drying, namely obtain ionic liquid loaded type bentone adsorbent.
Embodiment 5
(1) bentonite pretreatment: bentonite is dried in 105 DEG C of drying boxes, is pulverized with ball mill, grinding, by 200 object sieve, obtains pretreatment bentonite;
(2) ion liquid modified: in the reactor, add 1-ethyl-3-methyllimidazolium bromide ionic liquid respectively: 2.0g, APTES: 2.0g, mix, in 100 DEG C of isothermal reaction 9h, cooling room temperature, obtaining solid product is modified ionic liquid;
(3) ionic liquid loaded type bentone adsorbent preparation: in the reactor, add respectively, modified ionic liquid: 3g, absolute ethyl alcohol: 60mL, stirring and dissolving, then add pretreatment bentonite: 6.3g, in 55 ± 2 DEG C of constant temperature, stirring and refluxing reaction 5h, taking-up is cooled to room temperature, continues stirring reaction 24 h, and rotary distillation is except desolventizing, put into oven for drying, namely obtain ionic liquid loaded type bentone adsorbent.
Embodiment 6
(1) bentonite pretreatment: bentonite is dried in 105 DEG C of drying boxes, is pulverized with ball mill, grinding, by 200 object sieve, obtains pretreatment bentonite;
(2) ion liquid modified: in the reactor, add 1-ethyl-3-methyllimidazolium bromide ionic liquid respectively: 10g, APTES: 10g, mix, in 100 DEG C of isothermal reaction 10h, cooling room temperature, obtaining solid product is modified ionic liquid;
(3) ionic liquid loaded type bentone adsorbent preparation: in the reactor, add respectively, modified ionic liquid: 20g, absolute ethyl alcohol: 500mL, stirring and dissolving, then add pretreatment bentonite: 38g, in 55 ± 2 DEG C of constant temperature, stirring and refluxing reacts 6 h, taking-up is cooled to room temperature, continues stirring reaction 24 h, and rotary distillation is except desolventizing, put into oven for drying, namely obtain ionic liquid loaded type bentone adsorbent.
Embodiment 7
Take the ionic liquid loaded type bentone adsorbent of 0.20g and be placed in 250mL tool plug conical flask, adding 100mL concentration is in 400mg/ Cr VI standard liquid, be in 2.0 ~ 10.0 scopes with the pH value of diluted acid or alkali regulation system, at room temperature shake absorption 60 ~ 90min, get supernatant, by the concentration of determining hexavalent chromium by spectrophotometry, according to chromic concentration difference in water before and after absorption, calculate the adsorption capacity of ionic liquid loaded type bentone adsorbent, result shows that pH value ionic liquid loaded type bentone adsorbent in 2.0 ~ 5.0 scopes is maximum and stable to chromic adsorption capacity, at room temperature shake absorption 60 min, Cr VI adsorbs completely substantially, chromic adsorption capacity can reach 78.22 mg/g.
Embodiment 7
Take the ionic liquid loaded type bentone adsorbent of 1.0g and be placed in 250mL tool plug conical flask, adding 100mL concentration is in 200mg/L Cr VI standard liquid, be in 2.0 ~ 4.0 scopes with the pH value of diluted acid or alkali regulation system, at room temperature concussion absorption 120min, get supernatant, by the concentration of determining hexavalent chromium by spectrophotometry, according to chromic concentration difference in water before and after absorption, calculate ionic liquid loaded type bentone adsorbent to chromic clearance, result shows this adsorbent to the clearance of Cr VI in water all more than 97.82%, reach as high as 99%.

Claims (5)

1. a preparation method for the ionic liquid loaded type bentone adsorbent of 1-ethyl-3-methyllimidazolium bromide, is characterised in that the method has following processing step:
(1) bentonite pretreatment: bentonite is dried in 105 DEG C of drying boxes, is pulverized with ball mill, grinding, by 200 object sieve, obtains pretreatment bentonite;
(2) ion liquid modified: in the reactor, add by following composition mass percentage concentration, 1-ethyl-3-methyllimidazolium bromide ionic liquid: 40% ~ 52%, APTES: 48% ~ 60%, each component sum is absolutely, mixes, in 100 DEG C of isothermal reaction 9 ~ 11h, cooling room temperature, obtaining solid product is modified ionic liquid;
(3) ionic liquid loaded type bentone adsorbent preparation: in the reactor, adds by following composition mass percentage concentration, modified ionic liquid: 2% ~ 8%, absolute ethyl alcohol: 77% ~ 90%, stirring and dissolving, then add pretreatment bentonite: 4% ~ 14%, in 55 ± 2 DEG C of constant temperature, stirring and refluxing reaction 5 ~ 7 h, taking-up is cooled to room temperature, continues stirring reaction 24 h, and rotary distillation is except desolventizing, put into oven for drying, namely obtain ionic liquid loaded type bentone adsorbent.
2. according to the preparation method of the ionic liquid loaded type bentone adsorbent of a kind of 1-ethyl-3-methyllimidazolium bromide described in claim 1, it is characterized in that: described bentonite is calcium-base bentonite.
3. according to the preparation method of the ionic liquid loaded type bentone adsorbent of a kind of 1-ethyl-3-methyllimidazolium bromide described in claim 1, it is characterized in that: the mass ratio of the 1-ethyl-3-methyllimidazolium bromide ionic liquid described in step (2) and APTES is optimum in the scope of 1:1.1 ~ 1.2.
4. according to the preparation method of the ionic liquid loaded type bentone adsorbent of a kind of 1-ethyl-3-methyllimidazolium bromide described in claim 1, it is characterized in that: modified ionic liquid described in step (3) and the bentonitic mass ratio of pretreatment are optimum in the scope of 1:1.9 ~ 2.1.
5., according to ionic liquid loaded type bentone adsorbent prepared in claim 1, it is characterized in that the application of ionic liquid loaded type bentone adsorbent to adsorbing separation chromic in water body.
CN201410456860.6A 2014-09-10 2014-09-10 A kind of preparation method of ionic liquid loaded type bentone adsorbent Expired - Fee Related CN104289174B (en)

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CN104826455A (en) * 2015-04-21 2015-08-12 北京化工大学 Method using ionic liquid for gas drying and dehydration
CN106701734A (en) * 2017-02-08 2017-05-24 光合强化(北京)生物科技有限公司 Modified bentonite adsorbent for fixing benzene degrading bacterium
CN108816287A (en) * 2018-05-23 2018-11-16 福州大学 Uio-66 immobilized Carboxyl-functional Ionic Liquid composite material and its preparation and application in situ
CN110368985A (en) * 2019-07-04 2019-10-25 浙江工业大学 It is a kind of for 5-HMF synthesis catalyst and 5-HMF preparation method
CN110776148A (en) * 2019-11-21 2020-02-11 柏威达(南京)环境科技有限公司 Industrial wastewater treatment method containing metal ions
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Cited By (11)

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CN104689794A (en) * 2015-03-23 2015-06-10 济南大学 Lauryl sodium sulfate modified sand absorbing material and preparation method thereof
CN104689794B (en) * 2015-03-23 2016-10-12 济南大学 A kind of sodium lauryl sulphate modification sand adsorbing material and preparation method thereof
CN104826455A (en) * 2015-04-21 2015-08-12 北京化工大学 Method using ionic liquid for gas drying and dehydration
CN106701734A (en) * 2017-02-08 2017-05-24 光合强化(北京)生物科技有限公司 Modified bentonite adsorbent for fixing benzene degrading bacterium
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CN108816287B (en) * 2018-05-23 2020-12-25 福州大学 Uio-66 in-situ immobilized carboxyl functionalized ionic liquid composite material and preparation and application thereof
CN110368985A (en) * 2019-07-04 2019-10-25 浙江工业大学 It is a kind of for 5-HMF synthesis catalyst and 5-HMF preparation method
CN110368985B (en) * 2019-07-04 2022-05-31 浙江工业大学 Catalyst for 5-HMF synthesis and preparation method of 5-HMF
CN110776148A (en) * 2019-11-21 2020-02-11 柏威达(南京)环境科技有限公司 Industrial wastewater treatment method containing metal ions
CN113231029A (en) * 2021-05-28 2021-08-10 南通大学 Preparation method of activated carbon fiber functional material with efficient decolorizing performance
CN113231029B (en) * 2021-05-28 2023-06-16 南通大学 Preparation method of active carbon fiber functional material with efficient decoloring performance

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