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Method for preparing quaternary amines salt cationic adsorption agent with plant of high cellulose content

A high-cellulose, cationic technology, applied in the field of environment and chemistry, to achieve the effects of simple production process, good product stability and less secondary pollution

Inactive Publication Date: 2009-01-14
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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  • Method for preparing quaternary amines salt cationic adsorption agent with plant of high cellulose content
  • Method for preparing quaternary amines salt cationic adsorption agent with plant of high cellulose content
  • Method for preparing quaternary amines salt cationic adsorption agent with plant of high cellulose content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Stirring and reacting Phyllostachys arundis with epichlorohydrin, adding cross-linking agent ethylenediamine, and then adding triethylamine solution, the proportioning ratio between them is Phyllostachys arundis: Epichlorohydrin: Ethylenediamine: Triethylamine solution =4g: 10mL: 3mL: 10mL, prepared the quaternary ammonium salt cationic adsorbent of Phyllostachys arundis. The product is represented by No.1. The specific preparation method is as follows:

[0030] (1) Take 4 g of Arundo donax with a particle size of 500 μm in a 250 mL three-necked flask, add 10 mL of epichlorohydrin, stir and add 10 mL of medium N,N-dimethylformamide, and stir at 80°C for 30 minutes .

[0031] (2) Take 3 mL of cross-linking agent ethylenediamine and add it to the above-mentioned 250 mL three-neck flask to continue stirring and reacting for 30 min, and the temperature is controlled at 80°C.

[0032] (3) Add 10 mL of triethylamine solution with a concentration of 99% by mass, the reactio...

Embodiment 2

[0035] Wheat straw and epichlorohydrin are stirred and reacted, and cross-linking agent diethylenetriamine is added, and then triethylamine solution is added, and the ingredient ratio between them is wheat straw: epichlorohydrin: diethylenetriamine: triethylene Amine solution = 4g: 10mL: 4mL: 10mL, the wheat straw quaternary ammonium salt cationic adsorbent was prepared. The product is represented by No.2.

[0036] The specific preparation method is the same as in Example 1, except that the cross-linking agent added is 4 mL of diethylenetriamine, and the reaction temperature is 80°C. The obtained quaternary ammonium salt cationic adsorbent has a tan powdery appearance and a Zeta potential of 29.9mv. The pH value of the aqueous solution is 5.04.

Embodiment 3

[0038]Stirring and reacting Phyllostachys arundis and epichlorohydrin, and adding cross-linking agent diethylenetriamine, then adding triethylamine solution, the proportioning ratio between them is Phyllostachys arundis: Epichlorohydrin: Diethylenetriamine: Triethylene Amine solution = 4g: 10mL: 3mL: 15mL, the quaternary ammonium salt cationic adsorbent of Phyllostachys arundis is prepared. The product is represented by No.3.

[0039] The specific preparation method is as in Example 1, except that the added triethylamine is 15 mL, the cross-linking agent is triethylenetetramine and the cross-linking agent is 3 ml, and the reaction temperature is 75° C. The obtained quaternary ammonium salt cationic adsorbent has a yellow powder appearance and a Zeta potential of 32.8mv. The pH value of the aqueous solution is 4.27.

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Abstract

The invention discloses a method for preparing quaternary amine salt ion adsorbent by using a plant with high cellulose content. Straw stalks with high cellulose content, epichlorohydrin and tri-ethylamine are taken as raw materials, ethylene diamine, diethylene triamine pentacetic acid (DTPA) or triethylenetetramine, etc are used as crosslinking agent to prepare the adsorbent under the condition of existence of N, N-dimethyl formamide. The method has the advantages of simple process, low cost, economic and practical, reproducible, etc. The adsorbent prepared by the method has the advantages of high liveweight growth rate, low secondary pollution, high stability, sound adsorption effect, wide application scope, etc; and the adsorbent can be extensively applied to the treatment of eutrophication of waters.

Description

technical field [0001] The invention relates to a cationic adsorbent and a preparation process thereof, in particular to a method for preparing a quaternary ammonium salt cationic adsorbent by using plants with high cellulose content and its product, belonging to the technical field of environment and chemistry. Background technique [0002] Plants with high cellulose content mainly refer to reed bamboo, wheat, rice, corn, potatoes, oilseeds, cotton, sugar cane, etc., and their cellulose content is 30-50%. Since cellulose has more hydroxyl groups, and hydroxyl groups are active groups that can be applied to synthesis reactions such as polymerization or polycondensation, cellulose can be widely used in the synthesis of various organic products. At present, the utilization of various plants with high cellulose content can be roughly divided into three categories: one is industrial raw materials, which are mainly used for papermaking, accounting for about 23% of the total; The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/30B01J20/26C02F1/28
Inventor 岳钦艳王文懿高宝玉许醒张建
Owner SHANDONG UNIV
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