Electrobath capable of being used for continuous electrolysis to synthesize butanedioic acid

A technology of electrolytic synthesis and succinic acid, which is applied in electrolytic process, electrolytic components, electrolytic organic production, etc., and can solve problems such as short circuit, electrode slime accumulation, and environmental pollution

Inactive Publication Date: 2010-03-17
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the accumulation and loss of electrode slime in the continuous electrolytic production process of succinic acid will cause short circuit between cathode and anode, and seriously pollute the environment, and provides a method for continuous electrolytic synthesis of succinic acid with recyclable electrode slime Electrolyzer

Method used

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  • Electrobath capable of being used for continuous electrolysis to synthesize butanedioic acid
  • Electrobath capable of being used for continuous electrolysis to synthesize butanedioic acid
  • Electrobath capable of being used for continuous electrolysis to synthesize butanedioic acid

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Embodiment Construction

[0022] refer to Figure 1-5 , an electrolytic cell that can be used for continuous electrolytic synthesis of succinic acid, comprising a casing 8, a cathode 3, and an anode 2, the casing 8 is provided with an electrolyte inlet 4 and an electrolyte outlet 7, and the casing 8 is connected to There is a gas collector 1, and an electrode slime collector 5 is connected to the bottom of the box body 8. The electrode slime collector 5 includes a mud collection chamber 51, and the outlet of the mud collection chamber 51 is connected to an electrode slime storage chamber 52. The mud storage chamber 52 is provided with a valve.

[0023] The inner wall of the mud collecting chamber 51 is inclined.

[0024] The valves include an inlet valve 53 and an outlet valve 54 .

[0025] The bottom of the outer wall of the mud collecting chamber 51 is provided with a horizontal bottom surface.

[0026] There is no diaphragm between the cathode 3 and the anode 2.

[0027] The electrolyte inlet 4 ...

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Abstract

An electrobath capable of being used for continuous electrolysis to synthesize butanedioic acid comprises a box body, a cathode and an anode. The box body is provided with an electrolyte inlet and anelectrolyte outlet and connected with a gas collector. The bottom of the box body is connected with an electrode paste collector which comprises a paste collecting chamber. An outlet of the paste collecting chamber is connected with an electrode paste storage chamber on which a valve is arranged. The electrobath has the advantages that the electrode paste discharge does not require power interruption nor influence the flowing state of the electrolyte and the continuous electrolysis production of the butanedioic acid is completely not influenced.

Description

technical field [0001] The invention relates to a continuous electrolytic cell for synthesizing succinic acid, in particular to an electrolytic cell for industrial continuous production of succinic acid. Background technique [0002] Succinic acid is a long-established and very important organic chemical product. Before 2007, the annual demand for succinic acid and its downstream products in my country was around 50,000 tons. However, in recent years, with the successful development of biodegradable plastic polybutylene succinate (PBS), it can be expected that in the next few years, as the main raw material (succinic acid) for the synthesis of polybutylene succinate usage will increase dramatically. According to conservative estimates, the demand for succinic acid in my country will reach 300,000 tons in the next five years. So far, the most competitive production method of succinic acid is the electrochemical hydrogenation method using maleic acid as raw material. With ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/04C25B9/00C25B15/08C25B3/25
Inventor 马淳安徐颖华褚有群赵峰鸣毛信表朱英红
Owner ZHEJIANG UNIV OF TECH
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