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Hemicellulose group ion exchange resin and preparation method thereof

A technology of ion exchange resin and hemicellulose, applied in the field of comprehensive utilization of resources, can solve problems such as limited utilization

Inactive Publication Date: 2010-12-22
TIANJIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These different types of glycans have different chemical behaviors compared to cellulose and starch, which will also limit their utilization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation of embodiment 1 hemicellulose-based resin matrix:

[0027] In 100ml 10% hemicellulose aqueous solution, add 20ml 10% chitosan aqueous solution, stir evenly. The pH of the mixed solution was adjusted to 3 with hydrochloric acid, and 20 ml of 5% glyoxal aqueous solution was added. Dissolve 1g of Span-80 in 200ml of kerosene, add it into the above mixed aqueous solution under stirring, and react at 65°C for 3h. The reaction solution was filtered, washed and dried to obtain a hemicellulose-based resin matrix.

Embodiment 2

[0028] The preparation of embodiment 2 hemicellulose-based resin matrix:

[0029] In 100ml of 8% hemicellulose aqueous solution, add 20ml of 12% polyvinyl alcohol aqueous solution, stir evenly. The pH of the mixed solution was adjusted to 3 with hydrochloric acid, and 20 ml of 6% glyoxal aqueous solution was added. Dissolve 1g of Span-80 in 200ml of liquid paraffin, add it into the above mixed aqueous solution under stirring, and react at 65°C for 3h. The reaction solution was filtered, washed and dried to obtain a hemicellulose-based resin matrix.

Embodiment 3

[0030] The preparation of embodiment 3 carboxylated hemicellulose ion exchange resins:

[0031] Fully soak 10g of hemicellulose-based resin precursor in 200ml of water, slowly add 30ml of 4% succinic anhydride acetone solution into the mixed system dropwise under stirring, after reacting for 6 hours, wash with 160ml of acetone and 200ml of water in sequence, and dry to obtain carboxylated hemicellulose Cellulose ion exchange resin.

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Abstract

The invention relates to a preparation method for hemicellulose-based ion exchange resin, pertaining to the field of integrated resources. A hemicellulose-based resin matrix is prepared by crosslinking reaction between hemicellulose and polyhydroxylated compound; and the hemicellulose-based ion exchange resin is prepared by chemical reaction of carrying out functionalization on the hemicellulose-based resin matrix.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of resources, in particular to a method for preparing hemicellulose-based ion exchange resin from hemicellulose. Background technique [0002] As the total amount of non-renewable resources such as petroleum and coal is decreasing day by day, it is becoming a new development trend to obtain new materials, high calorific value energy, chemical raw materials and medicines from agricultural and forestry waste renewable resources. It is an important branch of the research on the utilization of waste renewable resources. The content of hemicellulose in plant resources ranks second, second only to cellulose, accounting for about 1 / 4-1 / 3 of plant resources. Hemicellulose exists in a large amount in the stems, seeds, husks and other parts of plants. The content of hemicellulose in different plant species will also vary. For example, in conifers, its amount accounts for 10% to 15% of the dry weigh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/20C08J3/24C08B37/14
Inventor 查瑞涛胡惠仁
Owner TIANJIN UNIV OF SCI & TECH
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