Patent ID: 9643172
Date: 2017-05-09
CPC Classifications: B01J,C10G

Claim:
1. A method for preparation of a supported metal catalyst, comprising applying ionizing radiation on a system comprising a precursor of a primary metal active component, a carrier, a free radical scavenger and water, to reduce at least the primary metal active component precursor into the primary metal active component in elementary state, wherein the step of applying the ionizing radiation to carry out the reduction is conducted in either of the following manners: a) wetting the carrier having the primary metal active component precursor supported thereon with an aqueous solution comprising the free radical scavenger, and then irradiating the wetted carrier; or b) mixing the carrier having the primary metal active component precursor supported thereon with an aqueous solution comprising the free radical scavenger, and then irradiating the carrier immersed in the solution, wherein the catalyst comprises a carrier and supported thereon a primary metal active component and an optional secondary metal active component, wherein the primary metal active component is one of the elements of Group VIII and Group IB, wherein prior to either the wetting step or the mixing step, the carrier having the primary metal active component precursor supported thereon is treated with a fixing agent, which is a basic compound.