Method for preparing aluminum oxide dry glue powder containing silicon and zirconium

Abstract

The invention discloses a method for preparing aluminum oxide dry glue powder containing silicon and zirconium. The method comprises the following steps: after an solution containing an aluminum compound and precipitating agent are subjected to gel forming reaction, adding a compound solution containing zirconium into the mixture under the condition of controlling proper pH value and the like, adding a compound containing silicon into the mixture before, after or at the same time of adding the compound containing zirconium, and then washing, filtering and drying the mixture to obtain the dry glue containing the silicon and the zirconium. Through optimizing process and condition of adding the silicon and the zirconium as assistant into the aluminum oxide dry glue, the silicon and the zirconium are evenly dispersed on the surface of aluminum oxide, and can give full play of the assistant.

Description

technical field

[0001] The invention relates to a preparation method of alumina dry rubber powder containing silicon and zirconium, in particular to a preparation method of silicon and zirconium containing dry rubber powder of hydrogenation treatment catalyst carrier material. Background technique

[0002] Most supported catalysts are prepared by impregnation method, such as various hydrogenation catalysts. Alumina is often used as a carrier material for this type of catalyst. but pure Al 2 o 3 The interaction force between the active metal on the surface and the carrier is relatively large, and it is easy to form inactive species (such as the formation of nickel-aluminum spinel), and it is difficult to completely vulcanize to form a type II active phase with high hydrogenation activity. How to weaken the strong interaction between the metal and the support becomes the key to the preparation of highly active hydrogenation catalysts.

[0003] In order to improve the activ...