Preparation method of high-performance isononanoic acid

A high-performance technology of isononanoic acid, applied in the field of preparation of high-performance isononanoic acid, can solve the problems of accelerated decomposition of peroxides, difficult separation of metal ions, and enrichment of peroxides, so as to promote the initiation and production risks. The effect of reducing and increasing conversion rate
CN114874089APending Publication Date: 2022-08-09PANJIN HONGDING CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANJIN HONGDING CHEM CO LTD
Publication Date
2022-08-09

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Abstract

The invention relates to the technical field of fine chemical engineering, in particular to a preparation method of high-performance isononanoic acid. The invention provides a preparation method of high-performance isononanoic acid. The preparation method comprises the following steps: step 1, synthesizing isononanoic acid; step 2, adding water into the sodium salt crude product of isononanoic acid, heating and diluting; step 3, acidizing treatment; step 4, dehydrating and decolorizing isononanoic acid; the isononanoic acid prepared by the method disclosed by the invention is higher in conversion rate and higher in purity.
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Description

technical field

[0001] The invention relates to the technical field of fine chemical industry, in particular to a preparation method of high-performance isononanoic acid. Background technique

[0002] Isononanoic acid is a kind of transparent liquid with a little peculiar smell and appearance is light yellow. Because of its excellent lubrication, emulsifying, dispersing and stability, it is widely used in the intermediate of paint and coating drier. Esters of lubricants, rust removers, cosmetics and plasticizers, and production of peroxides as polymerization catalysts.

[0003] In the process of preparing isononanoic acid, the traditional method usually uses metal salts as catalysts and peroxides as oxidizing agents to oxidize isononanoal to isononanoic acid. Since metal salts can accelerate the decomposition of peroxides effect, resulting in reduced selectivity, increased by-products, low product yield, difficult separation of metal ions, and easy local enrichment of perox...

Claims

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