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Polyanion cellulose and preparation method and uses thereof

A technology of polyanion and cellulose, which is applied in the field of fine chemicals, can solve the problems of substandard product performance indicators, incomplete alkalization and etherification, and low production efficiency, and achieve the effects of superior water retention performance, adaptable equipment matching, and stable operation

Active Publication Date: 2008-04-16
SHANDONG YITENG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies in the prior art, on the basis of a large number of experiments, the inventor found that on the basis of the traditional preparation process of polyanionic cellulose, the use of "ternary composite solvent" and "multi-step slurry method" can overcome the alkali Incomplete etherification, product performance indicators do not meet the requirements, technical problems of low production efficiency

Method used

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  • Polyanion cellulose and preparation method and uses thereof
  • Polyanion cellulose and preparation method and uses thereof
  • Polyanion cellulose and preparation method and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The following components are mixed to prepare a ternary composite solvent for preparing polyanionic cellulose: A, isopropanol (concentration ≥ 98%), 87%; B, ethanol (concentration ≥ 95%), 10%; C, Soft water (hardness ≤ 3), 3%.

Embodiment 2

[0048] Mix the following components to prepare a ternary composite solvent for preparing polyanionic cellulose: A, isopropanol, 71%; B, ethanol, 20%; C, soft water, 9%.

Embodiment 3

[0050] Mix the following components to prepare a ternary composite solvent for preparing polyanionic cellulose: A, isopropanol, 78%; B, ethanol, 14%; C, soft water, 8%.

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Abstract

The present invention discloses polyanionic cellulose with a special quality, the multi-step slurry process for preparing the polyanionic cellulose and the ternary complex solvent required. The complex solvent is composed of (A) from 71 percent to 87 percent by weight of isopropyl alcohol, (B) from 10 percent to 20 percent by weight of alcohol and from 71 percent to 87 percent by weight of the soft water. The multi-step slurry process for preparing the polyanionic cellulose has a more excellent technical effect on material economizing, time saving and the properties of product than the traditional one-step slurry process for preparing the polyanionic cellulose. Compared with the properties the product produced by the traditional method, the acid resistance is raised by more than 20 percent, and the viscosity is greatly improved. The polyanionic cellulose is widely used in the fields like petroleum, paint, detergent, building materials, textile industry, paper marking, medicines, foodstuff, etc.

Description

technical field [0001] The invention belongs to the field of fine chemicals, especially a ternary composite solvent of polyanion cellulose (PAC), a multi-step slurry method for preparing polyanion cellulose with the solvent, and the polyanion cellulose prepared by the method and its application in petroleum, Applications in coatings, detergents, building materials, textiles, papermaking, medicine, food and other fields. Background technique [0002] my country's cellulose derivatives industry started in the 1960s and has a history of more than 40 years. Among them, carboxymethyl cellulose (CMC) is the longest and largest cellulose derivative in China. Compared with foreign countries, the number of cellulose ether manufacturers in my country is too large, the production capacity is greater than the demand, the scale and technical level of enterprises are quite different, there is a lack of investment in scientific research, and the progress of product updates is slow. With t...

Claims

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Application Information

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IPC IPC(8): C08B11/00C08B1/08C08K5/05
Inventor 滕鸿儒刘庆秀刘廷盛李坤武家卫
Owner SHANDONG YITENG NEW MATERIAL CO LTD
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