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Electrochemical method for synthesizing 1, 10-decanediol

A decanediol and electrochemical technology, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of harsh reaction conditions, low total yield, and three wastes

Active Publication Date: 2021-09-14
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides an electrochemical method for synthesizing 1,10-decanediol, which can solve the problems of low total yield of products in traditional synthesis processes, large investment in equipment, high risk of operation, harsh reaction conditions, and prominent waste problems.
At the same time, it can effectively avoid the problems of instability and easy self-aggregation in the existing electrochemical methods.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Preparation of Pb / Ag / TiO 2 Composite metal electrodes:

[0063] Titanium metal anode (circular, diameter 3cm), polished to no scratches on the surface, placed in deionized water for ultrasonic cleaning for 10 minutes, dried for later use;

[0064] Prepare an aqueous solution of acetic acid containing HF, the mass percent composition is: 5% acetic acid, 0.02% HF, and the rest is deionized water for subsequent use;

[0065] The electroplating solution is composed of a mixture of lead methanesulfonate, silver methanesulfonate, sulfonic acid and water, wherein: lead methanesulfonate is 0.3mol / L in terms of Pb ion concentration, and silver methanesulfonate is 0.2 in terms of Ag ion concentration mol / L, wherein the content of sulfonic acid is 14wt%, and the rest is deionized water.

[0066] (1) Use graphite of the same shape and size as the cathode and titanium metal as the anode, put it into an aqueous solution of acetic acid containing HF, the distance between the two ele...

Embodiment 2

[0069] Preparation of Pb / Ag / TiO 2 Composite metal electrodes:

[0070] Titanium metal anode (rectangular, size 4*4cm), polished to no scratches on the surface, ultrasonically cleaned in deionized water for 10 minutes, dried for later use;

[0071] Prepare an aqueous solution of acetic acid containing HF, the mass percent composition is: 10% acetic acid, 0.04% HF, and the rest is deionized water, for subsequent use;

[0072] The electroplating solution is composed of a mixture of lead methanesulfonate, silver methanesulfonate, sulfonic acid and water, wherein: lead methanesulfonate is 0.4mol / L in terms of Pb ion concentration, and silver methanesulfonate is 0.3 in terms of Ag ion concentration mol / L, wherein the content of sulfonic acid is 17wt%, and the rest is deionized water.

[0073] (1) Use graphite with the same area as the cathode and titanium metal as the anode, put it into an aqueous solution of acetic acid containing HF, the distance between the two electrodes is 2c...

Embodiment 3

[0076] Preparation of Pb / Ag / TiO 2 Composite metal nanoelectrodes:

[0077] Titanium metal anode (rhombic, size 5*5cm), polished to no scratches on the surface, ultrasonically cleaned in deionized water for 10 minutes, dried for later use;

[0078] Prepare an aqueous solution of acetic acid containing HF, the composition of which is: 15% acetic acid, 0.08% HF, and the rest is deionized water, set aside;

[0079] The electroplating solution is composed of a mixture of lead methanesulfonate, silver methanesulfonate, sulfonic acid and water, wherein: lead methanesulfonate is 0.3mol / L in terms of Pb ion concentration, and silver methanesulfonate is 0.3mol / L in terms of Ag ion concentration mol / L, wherein the content of sulfonic acid is 20wt%, and the rest is deionized water.

[0080] (1) Use graphite with the same area as the cathode and titanium metal as the anode, put it into an aqueous solution of acetic acid containing HF, the distance between the two electrodes is 1cm, at a ...

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PUM

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Abstract

The invention provides an electrochemical method for synthesizing 1, 10-decanediol, which comprises the steps of 1) mixing epsilon-caprolactone, an alkali electrolyte, an organic solvent and water, heating and stirring to hydrolyze epsilon-caprolactone in the system to generate 6-hydroxyhexanoate; and 2) adding sodium carbonate, sodium formate and water into the system hydrolyzed in the step 1), stirring and dissolving, and then carrying out electrolytic reaction to obtain the 1, 10-decanediol after the reaction is finished. The method provided by the invention can solve the problems of low total product yield, large equipment investment, high operation risk, harsh reaction conditions, prominent three-waste problems and the like in the traditional synthesis process. Meanwhile, the problems of instability, easiness in self-polymerization and the like in the existing electrochemical method can be effectively avoided.

Description

technical field [0001] The invention belongs to the field of organic synthesis and relates to an electrochemical method for synthesizing 1,10-decanediol. Background technique [0002] 1,10-Decanediol (1,10-Decanediol), also known as 1,10-dihydroxydecane, is a fine chemical raw material and pharmaceutical intermediate, mainly used in the manufacture of pharmaceuticals and fine chemical products, such as the production of diiodine Decane is used to prepare medicines such as antibacterial and antifungal drugs (bis) clotendine and octenidine, and it has more and more applications in the fields of new polyurethanes, polyesters, plasticizers, pesticides and lubricant additives , mainly used to improve the mechanical strength of the product, improve the product's resistance to hydrolysis, heat resistance and chemical corrosion resistance. [0003] The traditional production process of 1,10-decanediol is as follows: first, ricinoleic acid is pyrolyzed to obtain 1,10-sebacic acid, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B3/07C25B3/20C25B11/052C25B11/067C25B11/089
CPCC25B3/07C25B3/20C25B11/052C25B11/067C25B11/089
Inventor 栾谨鑫杜旺明钱向阳张永振
Owner WANHUA CHEM GRP CO LTD
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