Process for producing catalysts
AssigneeLabofina S. A.
InventorsHenri R. Debus, Raymond M. Cahen
Life of this patent
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Abstract
A process for producing a partially sulfurized nickel catalyst is disclosed wherein a pre-reduced nickel catalyst comprising nickel having a crystallite size of between about 10 and about 200 A is treated with at least one organic sulfur compound selected from the group consisting of thiophene, alkylthiophenes and mono-, and disulfides and mercaptans, at a temperature of between about 75.degree. and about 200.degree. C at a sufficient hydrogen pressure and for a period of time sufficient to produce a partially sulfurized nickel catalyst containing from about 1.5 to about 8 parts by weight of sulfur per 100 parts by weight of nickel.
Claims17
A process for producing a partially sulfurized nickel hydrogenation catalyst adapted for selective hydrogenation of unsaturated higher fatty acid compounds with reduction of the content of polyenic compounds, limitation of the formation of saturated compounds and of conjugated dienic compounds and with isomerization to trans-isomers, which comprises the step of treating a pre-reduced nickel catalyst comprising nickel, having a crystallite size of between about 10 and about 200 A with at least one organic sulfur compound selected from the group consisting of thiophene, alkylthiophenes, mono- and disulfides and mercaptans at a temperature of between about 75.degree. C. and about 200.degree. C. at a hydrogen pressure sufficient and for a period of time sufficient to produce a partially sulfurized nickel hydrogenation catalyst containing from about 1.5 to about 8 parts by weight of sulfur per 100 parts by weight of nickel.
Dependencies are inferred from the claim text.