Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for oxidizing allyl alcohol

An allyl alcohol and oxidant technology, applied in the direction of organic chemistry, etc., can solve the problems of polluted environment, equipment corrosion, harsh operating conditions, etc., and achieves simple and easy control of the process, high glycidol selectivity, and high ozone effective utilization rate. Effect

Active Publication Date: 2013-09-11
CHINA PETROLEUM & CHEM CORP +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned problems existing in the method for preparing glycidyl alcohol in the prior art, the inventor of the present invention has carried out in-depth research and found that using ozone as an oxidizing agent to oxidize allyl alcohol can overcome the harsh operating conditions in the prior art on the one hand. , serious corrosion of equipment and the defects of polluting the environment, and can also obtain satisfactory glycidyl alcohol selectivity, thereby completing the present invention

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for oxidizing allyl alcohol
  • Method for oxidizing allyl alcohol
  • Method for oxidizing allyl alcohol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] At a temperature of 60° C. and a pressure of 0.5 MPa, with ozone (15% by volume, the rest being oxygen) as an oxidant, allyl alcohol, ozone and solvent acetone were reacted in a molar ratio of 1:1:1. The results of the reaction for 2 hours are as follows: the conversion rate of allyl alcohol is 64%; the effective utilization rate of ozone is 41%; the selectivity of glycidyl alcohol is 53%.

Embodiment 2

[0039] At a temperature of 20° C. and a pressure of 1.5 MPa, with ozone (30% by volume, the rest being air) as an oxidant, allyl alcohol, ozone and solvent acetic acid were reacted in a molar ratio of 1:1:5. The result of reacting for 5 hours is as follows: the conversion rate of allyl alcohol is 25%; the effective utilization rate of ozone is 38%; the selectivity of glycidol is 69%.

Embodiment 3

[0041] At a temperature of 80° C. and a pressure of 0.2 MPa, with ozone (5% by volume, the rest being oxygen) as an oxidant, allyl alcohol, ozone and solvent acetonitrile were reacted in a molar ratio of 1:2:10. The result of reacting for 1 hour is as follows: the conversion rate of allyl alcohol is 82%; the effective utilization rate of ozone is 43%; the selectivity of glycidyl alcohol is 47%.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for oxidizing allyl alcohol. The method comprises the following step: in a condition of an oxidizing reaction, contacting allyl alcohol with an oxidant. The method is characterized in that the oxidant is a gas containing ozone. The method is good in selectivity of epoxy propanol, and the selectivity of the product epoxy propanol and the ozone effective utilization ratio are further improved in the presence of a titaniferous catalyst.

Description

technical field [0001] The invention relates to a method for preparing glycidyl alcohol by oxidation of allyl alcohol. Background technique [0002] Glycidol, also known as glycidol, is a colorless and nearly odorless liquid. Miscible with water, low-carbon alcohol, ether, benzene, toluene, chloroform, etc., partially soluble in xylene, tetrachloroethylene, trichloroethane, almost insoluble in aliphatic and alicyclic hydrocarbons. It is an important fine chemical raw material. It is used as a stabilizer for natural oil and vinyl polymers, demulsifiers, and dyeing layering agents. It is also used as an intermediate for the synthesis of glycerin and glycidyl ether (amines, etc.). It can be used in surface coatings, chemical synthesis, pharmaceuticals, pharmaceutical chemicals, fungicides and gels for solid fuels. [0003] Industrial production of glycidol mainly has the following two methods: 1. Glycerol chlorohydrin method, which is obtained by reacting 3-propylene glycol i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C07D301/03C07D303/14
Inventor 林民史春风朱斌
Owner CHINA PETROLEUM & CHEM CORP