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Production process of hydroxyethyl cellulose

A hydroxyethyl cellulose and production process technology, which is applied in the field of hydroxyethyl cellulose production process, can solve the problems of insufficient environmental protection, insufficient satisfaction, complex production process of hydroxyethyl cellulose, etc., and achieve high utilization rate of raw materials , good economic and environmental benefits, and the effect of avoiding by-products

Inactive Publication Date: 2018-01-09
张家港市金港镇宏业海绵复合厂
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Problems solved by technology

However, the current production process of hydroxyethyl cellulose is relatively complicated and not environmentally friendly enough to fully meet the needs of modern industrial production

Method used

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  • Production process of hydroxyethyl cellulose

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Embodiment Construction

[0019] The invention provides a kind of production technique of hydroxyethyl cellulose, it comprises the steps:

[0020] S1. Provide reaction raw materials, and refine cellulose powder through the provided reaction raw materials;

[0021] S2, performing alkalization and etherification on the refined cellulose powder in sequence, and neutralizing the mixed solution of alkalization and etherification;

[0022] S3, washing and desalting the neutralized mixed solution, and drying the washed and desalted solution;

[0023] S4, pulverizing the solid obtained after drying to obtain the hydroxyethyl cellulose.

[0024] The present invention will be described in detail below in conjunction with the implementations shown in the drawings, but it should be noted that these implementations are not limitations of the present invention, and those of ordinary skill in the art based on the functions, methods, or structural changes made by these implementations Equivalent transformations or s...

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Abstract

The invention provides a production process of hydroxyethyl cellulose. The production process comprises the following steps: S1, providing raw materials for reaction and refining cellulose powder fromthe provided raw materials for reaction; S2, carrying out alkalization and etherification on the refined cellulose powder in order, and carrying out neutralization treatment on the alkalized and etherified mixed solution; S3, washing and desalting the neutralized mixed solution, and drying the washed and desalted solution; and S4, crushing the dried solid matter obtained in the step S3 to obtainthe hydroxyethyl cellulose. The production process of the hydroxyethyl cellulose provided by the invention has the advantages of simple process and high efficiency, and when the hydroxyethyl celluloseis produced by the production process, the generation of by-products is avoided, so that the utilization rate of the raw materials is high. The production process of hydroxyethyl cellulose provided by the invention fully meets the requirements of modern industrial production, and acquires good economic and environmental benefits.

Description

technical field [0001] The invention relates to a production process, in particular to a production process of hydroxyethyl cellulose. Background technique [0002] Hydroxyethylcellulose (HEC) is a white or light yellow, odorless, non-toxic fibrous or powdery solid, which belongs to non-ionic soluble cellulose ethers. Because HEC has good properties of thickening, suspending, dispersing, emulsifying, bonding, film-forming, protecting moisture and providing protective colloid, it has been widely used in petroleum exploration, coatings, construction, medicine, food, textile, papermaking and polymer Polymerization and other fields. However, the current production process of hydroxyethyl cellulose is relatively complicated and not environmentally friendly enough to fully meet the needs of modern industrial production. [0003] Therefore, in view of the above problems, it is necessary to propose a further solution. Contents of the invention [0004] The object of the present...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B11/08
Inventor 沙冰娟
Owner 张家港市金港镇宏业海绵复合厂
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