C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/208
C10G 25/12 (2006.01)
Patent
CA 1179287
ABSTRACT Metals deposited on an inert contact material during high temperature decarbonizing and demetallizing of heavy petroleum stocks are inactivated by mixing the contact material with a silica donor and reacting the mixture at high temperature in the presence of steam to induce migration of silica from the donor to mask metal on the contact material.
381637
Engelhard Corporation
Smart & Biggar
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