Catalyst for preparation of heptanol by hydrogenation of hyptyl aldehyde and use

A catalyst, a technology for producing heptanol, applied in organic chemistry, reduction preparation of oxygen-containing functional groups, etc., to achieve the effect of high activity and selectivity

Inactive Publication Date: 2005-08-03
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no report on the application of amorphous alloy catalysts in the hydrogenation of heptanal to heptanol.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1. Weigh 0.5g of nickel nitrate hexahydrate and add 9ml of distilled water to dissolve and configure nickel nitrate solution, and impregnate the alumina carrier, and dry at 100°C to obtain a nickel-containing carrier; weigh 0.28g of potassium borohydride to make 12ml of aqueous solution , at room temperature the KBH 4 The solution is added dropwise to the nickel-containing carrier, the reaction proceeds immediately and hydrogen gas is released, after the dropwise completion, when no hydrogen gas is released, the catalyst is obtained by washing with deionized water until the solid product has no acid radicals.

Embodiment 2

[0023] Embodiment 2. Weigh 2.0 g of nickel nitrate hexahydrate and add 9 ml of distilled water to dissolve and configure it into a nickel nitrate solution, and impregnate it with a specific surface area of ​​150 m 2 g -1 Alumina carrier, dried at 100°C to obtain a nickel-containing carrier; weigh 1.11g of potassium borohydride to make 12ml of aqueous solution, and dissolve KBH at room temperature 4 The solution is added dropwise to the nickel-containing carrier, the reaction proceeds immediately and hydrogen gas is released, after the dropwise completion, when no hydrogen gas is released, the catalyst is obtained by washing with deionized water until the solid product has no acid radicals.

Embodiment 3

[0024] Example 3. Weigh 4.0 g of nickel nitrate hexahydrate and add 9 ml of distilled water to dissolve it to form a nickel nitrate solution, impregnate the alumina carrier, and dry at 100° C. to obtain a nickel-containing carrier; weigh 2.23 g of potassium borohydride to make 12 ml of aqueous solution , at room temperature the KBH 4 The solution is added dropwise to the nickel-containing carrier, the reaction proceeds immediately and hydrogen gas is released, after the dropwise completion, when no hydrogen gas is released, the catalyst is obtained by washing with deionized water until the solid product has no acid radicals.

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PUM

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Abstract

A hydrocatalyst for preparing heptanol from heptanal by hydrogenation is an efficient low-Ni one composed of non-crystal Ni-B alloy (1-15 wt.%) and carrier (85-99 wt.%). It is applied at 100-300 deg.C and 0.1-4.0 / hr for space speed of liquid under 0.5-4.0 MPa and (5-80):1 for hydrogen / aldehyde ratio. Its advantages are high transform rate and high selectivity.

Description

Technical field: [0001] The invention relates to a solid-loaded amorphous alloy catalyst for hydrogenating heptanal to heptanol and its application. Background technique: [0002] my country is a country rich in castor in the world, with an annual output of about 200,000 tons, ranking third in the world. A large amount of by-product heptanal (accounting for more than 24% of castor oil output) will be produced when castor oil is deeply processed to produce nylon-11. Raw materials for value-added spices, medicines, organic synthesis and rubber products will produce better economic and social benefits. Some researchers in China use framework nickel as a hydrogenation catalyst for heptanal, but the cost of using framework nickel catalyst is high, and the environmental pollution is serious during the catalyst preparation process. For this reason, research and selection of hydrogenation catalysts are essential. [0003] It was reported in Journal of Molecular Catalysis A: Chemi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/755C07C29/14C07C31/125
Inventor 任杰董琳李英姜建卫
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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