Patent ID: 7271120
Filing Date: 2007-09-18
Classification: B01J,C07C,Y02P

Abstract:
1. A method for preparing a catalyst comprising the steps of: preparing an aqueous solution of soluble salt(s) of K, Na, Cs, Li, Ca, Mg, Zn, Pb, Mn, La or Ce; adjusting pH value of the solution to 0-5; spraying and impregnating the aqueous solution on the carrier by equal-volume spraying and impregnating process, to prepare an active component-supported carrier; drying the active component-supported carrier at a temperature of from 100° C. to 250° C. for 2 to 24 hrs; and the active component-supported carrier at a temperature from 500° C. to 1000° C. for 2 to 12 hrs; wherein the catalyst comprises: 20 to 50 wt % of an active component; and 80 to 50 wt % of a carrier component, wherein the carrier component comprises at least one carrier selected from the group consisting of active carbon, α-alumina, λ-alumina, silica, and molecular sieve; and wherein the active component comprises one or more active component selected from the group consisting of oxides and chlorides of K, Na, Cs, Li, Ca, Mg, Zn, Pb, Mn, La or Ce.