Method for preparing sulfydryl lignocelluloses-montmorillonoid compounded magnetic biomass adsorbent

A technology of biomass adsorbent and lignocellulose, applied in alkali metal compounds, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve problems such as weak adsorption and limited adsorption range, and achieve good biocompatibility performance, improved adsorption effect, and excellent properties

Inactive Publication Date: 2017-07-28
凤台县双利生物科技有限公司
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Problems solved by technology

However, the adsorption is not strong, and the adsorption range is too limited

Method used

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Embodiment

[0023] A preparation method of a mercapto lignocellulose-montmorillonite composite magnetic biomass adsorbent, prepared from the following raw materials in parts by weight (g):

[0024] Wheat straw 55, ZnCl 2 5. Citric acid 6, N,N-dimethylformamide 7, chitosan 4, epichlorohydrin 5, ethylenediamine 5, pyridine 3, triethylamine 5, sodium alginate 5, CaCl 2 4. FeSO 4 5. FeCl 3 4. Thioglycolic acid 6, acetic anhydride 3, lignocellulose 2, montmorillonite 5, acetic acid, dilute H 2 SO 4 , ammonia water, ethanol, distilled water, and NaOH aqueous solution.

[0025] A preparation method of a mercapto lignocellulose-montmorillonite composite magnetic biomass adsorbent, characterized in that, the following steps are carried out:

[0026] a. Rinse the wheat straw with water, dry at 100-110°C, pulverize and sieve, and collect biomass particles with a diameter of 0.1-0.5mm;

[0027] b. ZnCl 2 1:2 dissolved in water, add the material obtained in a to soak for 5 hours, then activate ...

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Abstract

The invention discloses a method for preparing a sulfydryl lignocelluloses-montmorillonoid compounded magnetic biomass adsorbent. The method is characterized in that wheat straw, ZnCl2, citric acid, N,N-dimethyl formamide, chitosan, epoxy chloropropane, ethanediamine, pyridine, triethylamine, sodium alginate, CaCl2, FeSO4, FeCl3, mercaptoacetic acid, acetic anhydride, lignocelluloses, montmorillonoid and the like are adopted as raw materials. In the N,N-dimethyl formamide, biomass granules are modified by using the citric acid and chitosan, the pyridine is adopted for catalyzing and synergizing cross-linking modification of the ethanediamine, then the biomass adsorbent is prepared, and very high adsorption capacity is achieved; as FeSO4 and FeCl3 are adopted as raw materials, magnetic Fe3O4 is synthesized, is loaded on the surfaces of the biomass granules and is wrapped by using sodium alginate, so that a magnetic biomass adsorbent is prepared; the sulfydryl lignocelluloses-montmorillonoid compounded magnetic biomass adsorbent is prepared.

Description

technical field [0001] The invention relates to a preparation method of an adsorbent, in particular to a preparation method of a mercapto lignocellulose-montmorillonite composite magnetic biomass adsorbent. Background technique [0002] With the rapid development of modern industry, the pollution of water resources is becoming more and more serious, among which, the most serious problem is heavy metal pollution. my country has a large number of biomass resources, among which agricultural waste is a renewable biomass resource, which is prepared into various adsorbents to remove heavy metal ion pollutants in wastewater and sewage. [0003] In his doctoral dissertation "Study on the Adsorption of Heavy Metal Pollutant Copper by Biomass Materials", Chen Yu used rice straw, wheat straw, corn rice, and peanut shells as raw materials, and prepared them by crushing, carbonization, and modification respectively. The three types of adsorbents are raw materials, carbon black materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F101/22C02F101/20
CPCB01J20/24B01J20/06B01J20/12B01J20/22B01J20/28009B01J2220/46B01J2220/4806B01J2220/4812B01J2220/4825B01J2220/4837C02F1/281C02F1/285C02F1/286C02F2101/20C02F2101/22
Inventor 葛文双
Owner 凤台县双利生物科技有限公司
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