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Metal-supported catalyst, metal-supported catalyst storage method, and alcohol manufacturing method

A technology for supporting metals and manufacturing methods, which is applied in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, organic chemical methods, etc. Treatment and other problems to achieve high activity and selectivity

Active Publication Date: 2020-09-29
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, such catalysts have problems such as low stability, deterioration of catalysts during storage and repeated use, and inability to handle them in air.

Method used

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  • Metal-supported catalyst, metal-supported catalyst storage method, and alcohol manufacturing method
  • Metal-supported catalyst, metal-supported catalyst storage method, and alcohol manufacturing method
  • Metal-supported catalyst, metal-supported catalyst storage method, and alcohol manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0269] Using a 1 mm cylindrical activated carbon (R1EXTRA manufactured by NORIT Corporation) carrier as a carrier, by the method based on Example 4 of Japanese Patent Laid-Open No. 2001-9277, using ruthenium chloride hydrate, chloroplatinic acid (IV) 6 hydrate material, tin (II) chloride dihydrate, and ruthenium, platinum, and tin were supported on activated carbon to prepare a supported metal product (hereinafter referred to as supported metal product 1). In the method for preparing the supported metal substance 1, the dissolved water of the metal chloride is the same as the pore capacity of the activated carbon used. Regarding the feed amount of the metal chloride, when the feed amount is fully loaded, hydrogen is reduced, and oxidation is stabilized, the content in the supported metal catalyst is 6 mass % of Ru, 3 mass % of Pt, and 7 mass % of Sn. In addition, the amount of ammonium bicarbonate used was 2 times the molar amount of the chlorine element of the metal chloride,...

Embodiment 2

[0279] 297 g of the middle part recovered in Example 1 was oxidatively stabilized under the same conditions as in Example 1 to obtain a 6.2% by mass Ru-3.0% by mass Pt-7.1% by mass Sn / activated carbon supported catalyst. In addition, the chlorine element content in the obtained catalyst was 0.06% by mass. During the oxidation stabilization operation, the temperature inside the catalyst is 60° C. or lower.

[0280] The catalyst is analyzed by the same method as in Example 1. In the powder X-ray diffraction analysis, the half-width of the broad peak at 2θ=43° is 3.36°, and the oxygen absorption is 0.57mmol oxygen / g-catalyst, oxidation The rate is 42%.

[0281] The reactivity of the obtained catalyst was confirmed by the method described above.

[0282] In addition, for the supported metal substance 1 prepared in Example 1, the reference activity was measured by the above-mentioned , and the percentage of catalyst activity relative to the reference activity was calculated. The...

Embodiment 3

[0284] 139 g of the rear portion recovered in Example 1 was oxidatively stabilized under the same conditions as in Example 1, except that the oxidation stabilization time was 73 minutes, to obtain 6.2% by mass Ru-3.0% by mass Pt-7.3% by mass %Sn / activated carbon supported catalyst. In addition, the chlorine element content in the obtained catalyst was 0.07% by mass. During the oxidation stabilization operation, the temperature inside the catalyst is 60° C. or lower.

[0285] The catalyst is analyzed by the same method as in Example 1. In the powder X-ray diffraction analysis, the half-width of the broad peak at 2θ=43° is 3.19°, and the oxygen absorption is 0.62mmol oxygen / g-catalyst, oxidation The rate is 45%.

[0286] The reactivity of the obtained catalyst was confirmed by the method described above.

[0287] In addition, for the supported metal substance 1 prepared in Example 1, the reference activity was measured by the above-mentioned , and the percentage of catalyst a...

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Abstract

The purpose of the present invention is to provide a metal-supported catalyst which has high catalytic activity and selectivity and can be handled in the air. The present invention pertains to a metal-supported catalyst which includes Ru and Sn, has a X-ray powder diffraction analysis 2theta=43 degrees peak half width of 3.61 degrees or less, and has an oxidation rate represented by [X / Y]*100 of 38% or more. X represents the number of moles of oxygen required for oxidising the metal-supported catalyst when the metal-supported catalyst is used in temperature-programmed reduction and normal temperature oxidation is performed thereafter. Y represents the total number of moles of metal supported by the metal-supported catalyst.

Description

[0001] This application is a divisional application based on the following Chinese patent application: [0002] The original filing date: May 21, 2015 [0003] Original application number: 201580026427.1 (PCT / JP2015 / 064640) [0004] Original Application Title: Supported Metal Catalyst, Method for Preserving the Supported Metal Catalyst, and Method for Producing Alcohol technical field [0005] The present invention relates to a supported metal catalyst and its preservation method, as well as a method for producing alcohol using the supported metal catalyst. Background technique [0006] Supported metal catalysts are known to be widely studied and applied to various catalytic reactions. For example, the use of various supported metal catalysts has been proposed for the direct hydrogenation (reduction) of carboxylic acids and / or carboxylic acid esters to prepare the corresponding alcohols. As such catalysts for reducing carboxylic acids and / or carboxylic acid esters to corr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/62B01J37/14B01J37/18C07C29/149C07C31/27
CPCB01J37/14B01J37/18B01J23/62C07C29/149C07C31/27C07B61/00
Inventor 远藤浩悦青岛敬之田中善幸
Owner MITSUBISHI CHEM CORP