Cyclohexanone composition and application thereof

A technology of composition and cyclohexanone, which is applied to the preparation of carbon-based compounds, the preparation of organic compounds, the separation/purification of carbonyl compounds, etc., can solve the problems of low space-time yield, many by-products, equipment corrosion, etc. The effect of product reduction, consumption reduction, and equipment corrosion reduction

Pending Publication Date: 2022-04-12
WANHUA CHEM (SICHUAN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method also faces problems such as many by-products, low space-time yield, and serious equipment corrosion.

Method used

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  • Cyclohexanone composition and application thereof
  • Cyclohexanone composition and application thereof
  • Cyclohexanone composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Add 20kg of raw materials 3,5,5-trimethyl-2-cyclohexen-1-one, 40.0mg cobalt acetylacetonate, 900.0mg phenol The mixed solution of oxazine, keep the top pressure of the reaction distillation tower at 2.4barA, then slowly raise the temperature of the tower kettle to boiling, the temperature of the kettle is 259°C, after the reflux is established at the top of the tower, slowly increase the reflux flow at the top of the tower to 80kg / h, after total reflux for about 1h, the top of the tower began to withdraw material at a rate of 5.0kg / h, and at the same time, the fresh raw material 3,5,5-trimethyl-2-cyclohexen-1-one was fed into the tower kettle, The feed rate was 5.0kg / h, and the volume of the reaction liquid in the tower was kept constant during the whole rectification process. After 720 hours of stable operation, the temperature of the still was maintained at 259-261°C (the temperature increased slightly as time went on). The extracted materials are analyzed by gas pha...

Embodiment 2-7

[0076] Change operating conditions, operating process is with reference to embodiment 1, and other conditions and results refer to the following table:

[0077]

[0078]

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Abstract

The invention provides a cyclohexanone composition and application thereof. The cyclohexanone composition is a composition containing 3, 5, 5-trimethyl-3-cyclohexene-1-ketone, has a special composition, and is prepared by taking 3, 5, 5-trimethyl-2-cyclohexene-1-ketone as a raw material through a reaction. The composition can be used for preparing the 2, 6, 6-trimethyl-2-cyclohexene-1, 4-dione, and can be used for preparing the 2, 6, 6-trimethyl-2-cyclohexene-1, 4-dione. The method provided by the invention has the advantages of less catalyst dosage, low energy consumption, high product yield and easiness in industrialization.

Description

technical field [0001] The invention belongs to the field of cyclohexanone synthesis, and in particular relates to a cyclohexanone composition and application thereof. Background technique [0002] Cyclohexanone has a wide range of applications, such as 3,5,5-trimethyl-2-cyclohexen-1-one can be used as a solvent and chemical agent for paints, inks, coatings, gums, resins, and nitrocellulose Synthetic intermediates, etc., especially for vinyl resins. It is a high boiling point solvent for nitro spray paint and synthetic resin paint. As a special paint thinner, mixed with methyl isobutyl ketone to dissolve phenolic and epoxy resins. [0003] 3,3,5-Trimethylcyclohexanone, as an important high-boiling organic solvent and pharmaceutical synthesis intermediate, is mainly used in the fields of medicine, pesticides, and fine chemicals, and its downstream products can be used as vulcanizing agents in rubber and other industries and polymer monomers for the plastics industry. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C45/00C07C45/67C07C45/82C07C49/603B01J31/22B01J23/10B01J23/04B01J27/232
CPCY02P20/10
Inventor 郭劲资张涛刘英瑞龚旭姜天岳
Owner WANHUA CHEM (SICHUAN) CO LTD
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