초록 ▼

Catalysts made by the Raney process (e.g., Raney process nickel) pelletized in matrix of polymer and plasticizer are activated by either (a) removal of plasticizer (e.g., by solvent extraction) followed by leaching out Al with caustic solution, leaving an active catalyst made by the Raney process in

Catalysts made by the Raney process (e.g., Raney process nickel) pelletized in matrix of polymer and plasticizer are activated by either (a) removal of plasticizer (e.g., by solvent extraction) followed by leaching out Al with caustic solution, leaving an active catalyst made by the Raney process in a polymer matrix; or (b) removal of plasticizer, then calcining to remove polymer, followed by leaching with caustic. The activated catalyst pellets have sufficient strength and attrition resistance for efficient use in fixed beds and packed columns for superior hydrogenation of toluene, heptene, butyraldehyde, and other conventional feedstockers used with catalysts made by the Raney process.

대표청구항 ▼

A shaped catalyst made by the Raney process composition selected from the group consisting of: I: shaped catalyst made by the Raney process compositions comprising an intimate mixture of: (a) particles of Raney process metal, pesent in an amount of about 15-50 parts by weight; (b) high molecular wei

A shaped catalyst made by the Raney process composition selected from the group consisting of: I: shaped catalyst made by the Raney process compositions comprising an intimate mixture of: (a) particles of Raney process metal, pesent in an amount of about 15-50 parts by weight; (b) high molecular weight polymer, present in an amount of about 1-30 parts by weight; and (c) homogeneous voids within the mixture, present in an amount of about about 0.1-90 volume % of the total mixture; said composition having a BET surface area of about 20-80 m2/g, a macroporosity of about 0.1-70% of total porosity, a shape density of about 0.8-2.0 g/cc, and a packed shape density of about 0.5-1.4 g/cc; and II: shaped catalyst made by the Raney process composition comprising: Raney process metal, cemented together with alpha-alumina, said shaped catalyst composition comprising 15-50 parts by weight of Raney process metal, 1-42 parts by weight of alumina, 0.1-90 volume % voids, having a density of about 1-1.7 g/cc, a packed density of about 0.6-1.3 g/cc, a BET surface area of about 20-80 m2/g, and a macroporosity from about 0.1-70% of the total porosity.