초록 ▼

Catalysts comprising a carbon-containing sulfide of molybdenum or tungsten are prepared by contacting, in the presence of sulfur, hydrogen and a hydrocarbon, ammonia and ammonium substituted molybdate, thiomolybdate, tungstate and thiotungstate salts at a temperature of from about 200°-600°C. These

Catalysts comprising a carbon-containing sulfide of molybdenum or tungsten are prepared by contacting, in the presence of sulfur, hydrogen and a hydrocarbon, ammonia and ammonium substituted molybdate, thiomolybdate, tungstate and thiotungstate salts at a temperature of from about 200°-600°C. These catalysts are useful for hydrotreating reactions. In a preferred embodiment, these catalysts will be promoted with certain transition metal sulfides, such as cobalt sulfide, which results in catalysts having greater activity than conventional catalysts such as cobalt-molybdate on alumina.

대표청구항 ▼

A catalyst selected from the group consisting essentially of a poorly crystalline, carbon-containing metal sulfide of the formula MS2-zCz′, wherein 0.01≤z≤0.5 and 0.01≤z′≤3.0 wherein M is a metal selected from the group consisting of Mo, W and mixtures thereof and said poorly crystalline, carbon-con

A catalyst selected from the group consisting essentially of a poorly crystalline, carbon-containing metal sulfide of the formula MS2-zCz′, wherein 0.01≤z≤0.5 and 0.01≤z′≤3.0 wherein M is a metal selected from the group consisting of Mo, W and mixtures thereof and said poorly crystalline, carbon-containing metal sulfide promoted with one or more promoter metals.