Preparation method of modified cellulose adsorbents

A cellulose and adsorbent technology, which is applied in the field of preparation of modified cellulose adsorbents, can solve the problems of general adsorption performance of cellulose adsorbents, poor practicability of adsorbents, high requirements on reaction conditions, etc., and achieves simple and reliable action mechanism, The effect of stable performance and broad-spectrum adsorption capacity
CN103480348AInactive Publication Date: 2014-01-01SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU UNIV
Publication Date
2014-01-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of modified cellulose adsorbents. The preparation method comprises the following steps: (1) activating cellulose in alkaline aqueous solution to obtain activated cellulose; (2) reacting the activated cellulose with epoxy chloropropane to obtain epoxy cellulose; (3) reacting the epoxy cellulose with an oxidizing agent to obtain epoxy dialdehyde oxidized cellulose; (4) reacting cyclodextrin with epoxy dialdehyde oxidized cellulose to obtain cyclodextrin grafted modified cellulose; and (5) reacting the cyclodextrin grafted modified cellulose with amino-terminated hyperbranched polymer to obtain the modified cellulose adsorbents. The raw material source is wide, the price is low, and the environment-friendly effect is achieved; the preparation method is simple, the reaction condition is mild, the equipment requirement is low and scale production is facilitated; and the prepared adsorbent has stable performance and broad-spectrum adsorption capacity for heavy metal ions, dyes and other organic matters and is environment-friendly, the cellulose additional value is remarkably promoted, and good economic and social benefits are achieved.
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Description

technical field

[0001] The invention relates to a preparation method of a cellulose adsorbent, in particular to a preparation method of a modified cellulose adsorbent, and belongs to the technical field of chemical material production methods. Background technique

[0002] With the rapid development of society and economy, human demand for natural resources such as water has increased sharply. However, the waste generated by industry, agriculture and life is discharged directly without treatment, resulting in serious pollution of water bodies, which directly affects humans and animals. water safety. In order to deal with water pollution, a large number of water pollution adsorbents have also emerged as the times require. Traditional adsorbents such as activated carbon and ion exchange fibers are expensive and mostly in the form of granular or powder, which is inconvenient to use and regenerate. In order to overcome these shortcomings, people turned their attention to natura...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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