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

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...