Patent ID: 6090742
Filing Date: 2000-07-18
Classification: B01J,C07C

Abstract:
A process for the preparation of a highly active catalyst for the synthesis of hydrocarbons from mixtures of hydrogen and carbon monoxide which comprises contacting and treating a preformed silica or silica-containing support with a solution containing both a cobalt metal compound and a compound selected from the group consisting of nitrous acid, nitric acid, and an acidic nitro-containing hydrocarbyl compound, or compounds, sufficient to hydroxylate the surface of the support, increase the number of hydroxyl groups on the surface of the support, and composite in finely dispersed form the cobalt metal compound on the support surface, calcining the treated support, and contacting the calcined support with hydrogen at a temperature above 200.degree. C., such that the activity of the catalyst is greater in a hydrocarbon synthesis reaction than a catalyst of similar composition, similarly prepared except that the support component of the catalyst was not contacted and treated with the acid; or was treated with the acid and cobalt compound in sequential steps.