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Technological research for producing sodium acetate by comprehensively utilizing chemical waste liquid

A technology, the technology of acetic acid, applied in the fields of application, organic chemistry, carboxylate preparation, etc., can solve the problems of high water content, low value and high extraction cost of the extract

Inactive Publication Date: 2010-12-01
薛平
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Experts at home and abroad have chosen a variety of separation methods for separation and extraction through experimental analysis, but all of them cannot be used in industrial production due to excessive water content, low value, and high extraction cost.

Method used

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Embodiment Construction

[0004] 1. The present invention adopts microwave technology to speed up the chemical reaction speed, adopts distillation technology to realize the separation of matter and liquid, and converts difficult-to-separate and low-value acetic acid into easily-separated and high-value-added sodium acetate by adding sodium carbonate reaction, and through the waste liquid Carry out chemical analysis, determine the chemical composition of the waste liquid, draw up the separation method, and adopt the optimized plan at the same time. Identify ways to add reactants and speed up reactions. The product is separated and purified to finally produce a qualified product.

[0005] The focus of the present invention is to determine the chemical composition and content of the waste liquid produced in the process of producing acephate, the reaction process of producing acephate is: spermamide+acetic anhydride --→ acephate+acetic acid

[0006] In the reaction process, dilute sulfuric acid is used as...

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Abstract

The invention discloses a technological research for producing sodium acetate by comprehensively utilizing chemical waste liquid and belongs to the field of chemical engineering. In the technological research, chemical reaction is accelerated by using a microwave technique, solid-liquid separation is realized by using a distillation technique, sodium carbonate is added for reaction so as to turn acetic acid which is difficult to separate and has relatively low value into the sodium acetate which is easy to separate and has high added value, and chemical analysis is performed on the waste liquid to determine chemical components of the waste liquid and draw up a separation method; meanwhile, an optimal scheme is adopted to determine a method for adding reactants and accelerating the reaction rate; a resultant is separated and purified, and finally a qualified product is produced.

Description

technical field [0001] The technical research on the production of sodium acetate by comprehensive utilization of chemical waste liquid belongs to the field of chemical industry. Background technique [0002] Pesticide manufacturers produce a large amount of waste liquid during the production of acephate, which will cause serious environmental pollution if it is discharged indiscriminately. It will be concentrated in the sewage treatment plant for treatment, which is very expensive and difficult to deal with. This problem has always been a major problem for pesticide companies. Experts at home and abroad have selected a variety of separation methods for separation and extraction through experimental analysis, but all of them cannot be used in industrial production due to excessive water content, low value, and high extraction cost. Contents of the invention [0003] I consulted a large number of domestic and foreign materials, and on the basis of many test and analysis, i...

Claims

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Application Information

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IPC IPC(8): C07C53/10C07C51/41C07F9/24C01C1/24C05C3/00
Inventor 薛平
Owner 薛平
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