Process for preparing sodium acetate solution

A production process, sodium acetate technology, applied in the field of sodium acetate solution production process, can solve the problems of high quality, flammable and explosive sodium acetate products, and achieve simple, practical and easy-to-operate preparation method, low raw material cost and high quality Effect

Active Publication Date: 2018-11-27
蓝保(厦门)水处理科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prepared sodium acetate product is of high quality, and as an additional carbon source for sewage treatment plants, it effectively solves the safety problem of inflammable and explosive carbon sources currently used in sewage treatment plants.

Method used

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  • Process for preparing sodium acetate solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1) Add 92 parts of waste acid water (hydrochloric acid content is 4.2%) that obtains in the technique that above-mentioned iron and steel pickling waste liquid produces ferric chloride in the primary enamel reactor that has stirring device, start stirring; Add 103 parts of spent caustic soda (sodium carbonate content is 10%) obtained in the technique of producing ferric chloride by adding above-mentioned iron and steel pickling waste liquid, stir 1h; Slowly add soda ash (sodium carbonate content is 99%) 49 when stirring part until completely dissolved evenly to obtain a primary solution, which is a soda ash solution with a sodium carbonate content of 17%, and sampling is detected;

[0045] 2) Filter the primary solution with adjusted sodium carbonate content in step 1) through a plate-and-frame filter press to obtain the mother liquor, which is sampled for detection;

[0046] 3) In the secondary enamel reaction kettle with stirring device, add 51 parts of industrial was...

Embodiment 2

[0048] 1) Add 84 parts of waste acid water (hydrochloric acid content is 4.7%) that obtains in the technique that above-mentioned iron and steel pickling waste liquid produces ferric chloride in the primary enamel reactor that has stirring device, start stirring; , add 96 parts of spent lye (sodium carbonate content is 10%) obtained in the technology that above-mentioned iron and steel pickling waste liquor produces ferric chloride, stir 1h; Slowly add soda ash (sodium carbonate content is 99%) 47 parts while stirring part until completely dissolved evenly to obtain a primary solution, which is a soda ash solution with a sodium carbonate content of 19%, and is sampled for detection;

[0049] 2) Filter the primary solution with adjusted sodium carbonate content in step 1) through a plate-and-frame filter press to obtain the mother liquor, which is sampled for detection;

[0050] 3) In the secondary enamel reaction kettle with stirring device, add 48 parts of industrial waste ac...

Embodiment 3

[0052] 1) Add 104 parts of waste acid water (the content of hydrochloric acid is 3.3%) obtained in the process of producing ferric chloride from the above-mentioned iron and steel pickling waste liquid in the primary enamel reaction kettle with stirring device, start stirring; , add 112 parts of spent caustic soda (sodium carbonate content is 10%) obtained in the technology that above-mentioned iron and steel pickling waste liquid is produced ferric chloride, stir 1h; Slowly add soda ash (sodium carbonate content is 99%) 43 parts while stirring part until completely dissolved evenly to obtain a primary solution, which is a soda ash solution with a sodium carbonate content of 18%, and sampling is detected;

[0053] 2) Filter the primary solution with adjusted sodium carbonate content in step 1) through a plate-and-frame filter press to obtain the mother liquor, which is sampled for detection;

[0054] 3) In the secondary enamel reaction kettle with stirring device, add 46 parts...

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Abstract

The invention discloses a process for preparing a sodium acetate solution. According to the method, on the premise of not increasing a great quantity of process equipment, waste acid water generated in a decompressed concentrating process in the process of producing ferric chloride with steel pickling waste liquor, waste base liquid generated in a tail gas absorption tower and industrial waste acetic acid react to produce the sodium acetate solution, so that resource utilization is realized. The preparation method is simple and practical, is easy to operate, is low in equipment investment, andis suitable for industrial production. The sodium acetate product has high quality, can be used as an additional carbon source of a sewage treatment plant, and can be used for effectively solving thesafety problem that methyl alcohol is easily combusted and exploded as being used as a current carbon source in the sewage treatment plant. The waste acid water generated in a decompressed concentration process, the waste base liquid generated in a tail gas absorption tower and industrial waste acetic acid are utilized, so that the production cost is greatly reduced, waste is turned to be usefuland is used for treating waste materials, and the environment-friendly concept of energy conservation, emission reduction and cycling economy can be achieved.

Description

technical field [0001] The invention belongs to the technical field of sodium acetate production, in particular to a production process of sodium acetate solution. Background technique [0002] Sodium acetate is a colorless and odorless crystal, which can be weathered in the air, is flammable, and is easily soluble in water. At present, sodium acetate is mainly made of glacial acetic acid and sodium hydroxide as main raw materials through concentrated crystallization and centrifugal separation. The production cost of the method is high, the production process is complex and difficult to operate, and consumes a large amount of mineral resources and acetic acid resources. [0003] At present, in the method of producing ferric chloride by using waste iron and steel pickling liquid, a large amount of waste acid water is produced during the decompression and concentration process, and a large amount of waste lye is produced by the tail gas absorption tower at the same time, resu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/41C07C53/10
CPCC07C51/412C07C53/10
Inventor 陈嘉宾吕奋勇王志巍吕奋志
Owner 蓝保(厦门)水处理科技有限公司
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