Ketone catalyst fabricated by dehydrogenating alcohol, and preparation method

Abstract

A catalyst for preparing ketone by dehydrogenating alcohol is prepared from Cu as active component, Zn, Cr, or K as active assistant and alumina as carrier through co-depositing, coating alkali metal by immersing or spraying, drying, and calcining. It has high activity and selectivity.

Description

technical field

[0001] The invention relates to a catalyst for alcohol dehydrogenation to ketone and a preparation method thereof, more specifically to a catalyst for sec-butanol dehydrogenation to methyl ethyl ketone with copper as the main active component and a preparation method thereof. Background technique

[0002] Most alcohol dehydrogenation ketone catalysts use copper as the main active component, and add zinc, chromium, magnesium, calcium and other active additives to form a relatively stable metal mixed crystal with copper, improve the dispersion of copper, and reduce the content of copper , by loading the active components and active auxiliary components on alumina and other carriers to further improve the dispersion of copper crystallites. In the prior art, there are many technical reports on copper-zinc, chromium, magnesium-alumina catalyst systems, such as Chinese patents CN1160152C, CN1150990C and CN1056067A. However, these catalysts are mainly developed for...