Preparation method of allyl acetate
A technology of allyl acetate and acetic acid, applied in the preparation of carboxylate, chemical instruments and methods, preparation of organic compounds, etc., can solve the problems of low catalytic activity, low selectivity of allyl acetate, etc., and achieve large stacking voids rate, external surface area of large particles, and the effect of pressure drop in small beds
Active Publication Date: 2013-04-24
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] The technical problem to be solved by this invention is that the method for synthesizing allyl acetate in the prior art has low catalytic activity, and the problem that the selectivity of allyl acetate is low provides a kind of synthesis acetic acid by propylene, acetic acid and oxygen-containing gas gas phase reaction Allyl ester method, which is characterized by high catalytic activity and high selectivity to allyl acetate
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1】 to 【 Embodiment 12
[0022] Except for the shape and size of the carrier used, the preparation process and evaluation method of the catalyst are the same as [Comparative Example 1].
Embodiment 13
[0024] The carrier of Example 1 was used to replace the cylindrical carrier in Example 7. The other preparation steps of the catalyst and the evaluation method of the catalyst were the same as in Example 7, except that the reducing agent was sodium formate solution.
Embodiment 14
[0026] The carrier of Example 2 was used to replace the cylindrical carrier in Example 7. The other preparation steps of the catalyst and the evaluation method of the catalyst were the same as in Example 7, except that the reducing agent used was gas containing hydrogen.
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
Login to View More Abstract
The invention relates to a preparation method of allyl acetate, and the method is mainly used for solving the technical problems that the allyl acetate catalyst has the defects of low space-time yield and poor reaction selectivity in an allyl acetate synthesis method in the prior art. The technical scheme adopted by the invention is as follows: according to the method, a catalyst of allyl acetate is synthetized through gas-phase reaction of propylene, acetic acid and oxygen-containing gas, the carrier of the catalyst is SiO2 or a mixture of SiO2 and Al2O3, the carrier is cylindrical and the length of the cylinder is 3-8mm, the ratio of the length to the diameter is 0.78-1.0, the inner cross section of the cylinder is latticed, and the shape of grid holes is triangle or square, so that the problems in the prior art are better solved, and the method can be used in the industrial production of allyl acetate.
Description
technical field [0001] The present invention relates to a kind of method for preparing allyl acetate. Background technique [0002] In the reaction of preparing allyl acetate by gas phase reaction with propylene, acetic acid and oxygen or oxygen-containing gas as raw materials, the suitable catalyst is that the active component contains Pd and KOAc, and may contain Cu, Au, Sn, or its corresponding Salt compounds. These active components are usually supported on SiO 2 , or SiO 2 with Al 2 o 3 on the mixture. The active components of this type of catalyst have already matured. The catalyzer that is used to prepare allyl acetate in the prior art is spherical or columnar, and for example U.S. Patent No. 3925452 discloses the catalyzer that is synthesized allyl acetate by propylene, acetic acid and oxygen-containing gas gas-phase reaction, and this catalyst is spherical or columnar silica As a carrier, palladium is supported, and alkali (earth) metal is used as a cocatalys...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/155C07C67/055B01J31/04B01J35/10
Inventor 杨运信张丽斌刘军晓
Owner CHINA PETROLEUM & CHEM CORP
PatSnap Eureka turns technology decisions into work you can execute. Powered by our Innovation Knowledge Graph, it runs expert workflows across engineering, life sciences, materials and intellectual property. Get your review-ready output in minutes.
