Process for production of allyl acetate production catalyst

A technology for the production of allyl acetate, which is applied in the direction of catalyst activation/preparation, carboxylate preparation, chemical instruments and methods, etc., can solve the problems of catalyst performance degradation, etc., and achieve small catalyst activity reduction, effective production, and improved selection sexual effect

Active Publication Date: 2012-10-24
RESONAC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The catalyst technology for vinyl acetate production has been established for a long time, and attempts have been made to apply the catalyst technology for vinyl acetate production to the catalyst technology for allyl acetate production; however, Journal "Shokubai" (Catalyst), Vol. 33 , No. 1 (1991), pp. 28-32 reported that the catalyst performance dropped significantly when the raw material was changed from ethylene to propylene

Method used

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  • Process for production of allyl acetate production catalyst
  • Process for production of allyl acetate production catalyst
  • Process for production of allyl acetate production catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0100] Embodiment 1: the manufacture of catalyst A

[0101] Using a spherical silica carrier (ball diameter: 5 mm, specific surface area: 155 m2 / g, water absorption rate: 0.85 g / g carrier, HSV-I produced by Shanghai Kaigen, hereinafter referred to as "silica carrier"), Catalysts were prepared by the following procedure.

[0102] Step 1: 30.3 grams of sodium chloropalladate aqueous solution prepared to 19.79 mass % palladium concentration and 6.13 grams of chloroauric acid aqueous solution prepared to 10 mass % gold concentration were mixed, and then the volume of the mixture was adjusted to 382 milliliters with pure water, To prepare solution A-1. 1 liter of silica carrier (bulk density specific gravity: 473 g / l, water absorption: 402 g / l) was added thereto to impregnate the A-1 solution until completely absorbed.

[0103] Step 2: Pure water was added to 35.6 g of sodium silicate nonahydrate for dissolution, and the volume was adjusted to 803 ml to prepare solution A-2. The...

Embodiment 2

[0106] Embodiment 2: the manufacture of catalyst B

[0107] Catalyst B was produced by repeating the procedure of Example 1, except that the amount of copper acetate monohydrate was changed from 2.5 grams to 7.5 grams.

Embodiment 3

[0108] Embodiment 3: the manufacture of catalyst C

[0109] Catalyst C was prepared by repeating the procedure of Example 1, except that 2.5 grams of copper acetate monohydrate was replaced by 3.0 grams of copper nitrate trihydrate.

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Abstract

An allyl acetate production catalyst comprising at least (a) palladium, (b) gold, (c) a compound containing at least one element selected from copper, nickel, zinc and cobalt, (d) an alkali metal salt compound and (e) a carrier, is produced by a process comprising step 1 in which a homogeneous solution of a palladium-containing compound and a gold-containing compound is supported on a carrier by contact therewith, step 2 in which the carrier obtained in step 1 is contacted with an alkali solution for impregnation, step 3 in which the carrier obtained in step 2 is subjected to reduction treatment, and step 4 in which a compound containing at least one element selected from copper, nickel, zinc and cobalt and an alkali metal salt compound are supported onto the carrier obtained in step 3. The obtained allyl acetate production catalyst has minimal reduction in activity and improved selectivity, when used for production of allyl acetate from propylene, oxygen and acetic acid.

Description

technical field [0001] The invention relates to a method for producing a catalyst for producing allyl acetate and a method for producing allyl acetate using the catalyst. In particular, the present invention relates to a method for producing a catalyst for the production of allyl acetate using propylene, oxygen and acetic acid as raw materials, the catalyst comprising (a) palladium, (b) gold, (c) containing A compound of at least one element selected from copper, nickel, zinc and cobalt and (d) an alkali metal salt, and the present invention also relates to a method for producing allyl acetate using the catalyst. Background technique [0002] Allyl acetate is an important industrial raw material used in the production of solvents and allyl alcohol. [0003] The allyl acetate production method includes a gas-phase reaction and a liquid-phase reaction using propylene, acetic acid, and oxygen as raw materials. Known catalysts widely used in such reactions contain palladium as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J37/16
CPCB01J23/8946B01J23/60C07C67/055B01J37/16C07C69/007C07C69/155B01J23/89B01J37/02
Inventor 门肋悦子小口亘中条哲夫岩间康拓
Owner RESONAC CORPORATION
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