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Catalyst for hydrogenolysis of polyhydric alcohol and method for producing 1,3-propane diol by using the catalyst

A manufacturing method and catalyst technology, which are used in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, organic chemical methods, etc., can solve the problems of short life, insufficient catalyst activity, low selectivity, etc. Simplified manufacturing process, excellent hydrogenolysis promotion effect, and carbon dioxide emission reduction effect

Inactive Publication Date: 2015-04-29
OSAKA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there will be problems such as insufficient catalyst activity, low selectivity, and short life.

Method used

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  • Catalyst for hydrogenolysis of polyhydric alcohol and method for producing 1,3-propane diol by using the catalyst
  • Catalyst for hydrogenolysis of polyhydric alcohol and method for producing 1,3-propane diol by using the catalyst
  • Catalyst for hydrogenolysis of polyhydric alcohol and method for producing 1,3-propane diol by using the catalyst

Examples

Experimental program
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Effect test

preparation example 1

[0070] Preparation example 1 (preparation of catalyst)

[0071] Catalysts were prepared by the impregnation method. That is, 20g of boehmite (trade name "Boehmite", manufactured by Wako Pure Chemical Industries, Ltd., average pore diameter: 77nm, specific surface area: 214m 2 / g) into the ammonium paratungstate aqueous solution (1), stirred for 16 hours, distilled off water with an evaporator, dried, and sintered at 800°C for 3 hours, thus obtaining tungsten-loaded boehmite, the ammonium paratungstate aqueous solution (1) is 2g (0.65mmol) (NH 4 ) 10 h 2 (W 2 o 7 ) 6 ·xH 2 O (manufactured by Aldrich) was dissolved in 200 mL of water.

[0072] The boehmite loaded with tungsten obtained by 2g was added in chloroplatinic acid aqueous solution (1), stirred for 12 hours, and described chloroplatinic acid aqueous solution (1) was 2% by weight of chloroplatinic acid aqueous solution (H 2 PtCl 6 : 0.2mmol) 4mL dissolved in 100mL deionized water to obtain.

[0073] After the ...

preparation example 2

[0075] Preparation example 2 (preparation of catalyst)

[0076] Except using chloroplatinic acid aqueous solution (2) instead of chloroplatinic acid aqueous solution (1), obtain catalyst (2) (Pt: 1% by weight, W: 8% by weight) in the same manner as Preparation Example 1, the chloroplatinic acid Aqueous solution (2) is 2% by weight chloroplatinic acid aqueous solution (H 2 PtCl 6 : 0.1mmol) 2mL dissolved in 100mL deionized water.

preparation example 3

[0077] Preparation example 3 (preparation of catalyst)

[0078] Catalyst (3) (Pt: 1% by weight, W: 8% by weight) was obtained in the same manner as in Preparation Example 2, except that the sintering conditions after impregnation were changed from 300°C for 3 hours to 500°C for 3 hours. .

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Abstract

Provided are: a catalyst for hydrogenolysis of a polyhydric alcohol, which is capable of selectively producing a hydrogenolysis product of a polyhydric alcohol with high yield without using a liquid acid catalyst; and a method for producing 1,3-propane diol, wherein 1,3-propane diol is produced from glycerol using this catalyst. A catalyst for hydrogenolysis of the present invention is obtained by having a boehmite carrier support a platinum component and a tungsten component. It is preferable that the platinum component and the tungsten component are contained at a ratio of from 1:0.05 to 1:50 (platinum component:tungsten component (weight ratio)). It is also preferable that a catalyst for hydrogenolysis of the present invention is obtained by having a boehmite carrier support a platinum component and a tungsten component, and then firing the resulting product at 200-1,000°C for 1-5 hours.

Description

technical field [0001] The present invention relates to a polyalcohol hydrogenolysis catalyst capable of obtaining a hydrogenolyzed product from a polyalcohol such as glycerin selectively and at a high yield, and to a method for producing 1,3-propanediol using the catalyst. Background technique [0002] As the problems of unstable supply of fossil fuels and the greenhouse effect caused by carbon dioxide emissions are increasing, the use of biodiesel fuel derived from biological resources has become widespread as a means of solving these problems. However, a large amount of by-product glycerol is generated during the production of biodiesel fuel, and an effective method for utilizing glycerin has not been established. Therefore, methods for converting glycerol into useful compounds and utilizing them are highly desired. [0003] The hydrogenolysis reaction is one of the known glycerol conversion reactions. In the hydrogenolysis reaction, 1,2-propanediol, 1,3-propanediol, et...

Claims

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Application Information

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IPC IPC(8): B01J23/652C07C29/60C07C31/20C07B61/00
CPCC07C29/58B01J23/6527B01J37/08B01J37/0201B01J35/393B01J35/23B01J35/615B01J35/643B01J35/647C07C31/205
Inventor 金田清臣松田洋和
Owner OSAKA UNIV
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