In accordance with the latter, the steps of the process comprise, first contacting, in one or more steps, a powder or preformed, particulate refractory inorganic support with a liquid, or solution in which there is dispersed or dissolved a compound, or salt of a catalytically active metal, or metals, to impregnate and deposit the metal, or metals, upon the support, or powder.
vu la charte des Nations unies, en particulier les articles #er et # et, au chapitre VII, les articles # etpatents-wipo patents-wipo