초록 ▼

A dispersed fine-sized anion-modified and phosphorus-promoted iron-oxide slurry catalyst having high surface area exceeding 100 m.sup.2 /gm and high catalytic activity, and which is useful for hydrogenation and hydroconversion reactions for carbonaceous feed materials is disclosed. The catalyst is s

A dispersed fine-sized anion-modified and phosphorus-promoted iron-oxide slurry catalyst having high surface area exceeding 100 m.sup.2 /gm and high catalytic activity, and which is useful for hydrogenation and hydroconversion reactions for carbonaceous feed materials is disclosed. The catalyst is synthesized by rapid aqueous precipitation from saturated salt solutions such as ferric sulfate and ferric alum, and is promoted with phosphorus. The iron-based catalysts are modified during their preparation with anionic sulfate (SO.sub.4.sup.2-). The resulting catalyst has primary particle size smaller than about 50 Angstrom units, and may be used in a preferred wet cake or gel form which can be easily mixed with a carbonaceous feed material such as coal, heavy petroleum fractions, mixed waste plastics, or mixtures thereof. Alternatively, the catalyst can be dried and/or calcined so as to be in a fine dry particulate form suitable for adding to the feed material. The invention includes methods for making the catalyst and processes for using the catalyst for hydroprocessing of carbonaceous feed materials to produce desirable low-boiling hydrocarbon liquid products.

대표청구항 ▼

[ We claim:] [1.] A dispersed fine-sized anion-modified and phosphorus-promoted slurry catalyst composed of hydroxides or oxyhydroxides of iron precipitates formed in presence of 0.5-10 wt. % sulfate (SO.sub.4.sup.2-) anions, said precipitates containing 5-20 wt. % iron and being promoted with addit

[ We claim:] [1.] A dispersed fine-sized anion-modified and phosphorus-promoted slurry catalyst composed of hydroxides or oxyhydroxides of iron precipitates formed in presence of 0.5-10 wt. % sulfate (SO.sub.4.sup.2-) anions, said precipitates containing 5-20 wt. % iron and being promoted with addition of 0.05-2.0 wt. % phosphorus promoter material, with the remainder being water said catalyst having primary particle size smaller than about 50 Angstrom units and a secondary particle size of 1-20 microns.