Process for the recovery of molybdenum from spent catalysts

Details Process for the recovery of molybdenum from spent catalysts Process for the recovery of molybdenum from spent catalysts

1981-02-13

1982-05-04

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group vib metal

423 53, 75101BE, C01G 3900

Patent

active

043281915

ABSTRACT:
A method of recovering molybdenum from the catalyst residue derived from the process of epoxidizing olefins is disclosed. The catalyst residue, in semi-solid form or as a solution diluted in an organic solvent, is contacted with an aqueous solution of an oxidizing agent such as hydrogen peroxide, nitric acid, or sodium hypochlorite to transfer the molybdenum to the aqueous solution. The molybdenum is thereafter isolated directly from the aqueous solution or, alternatively, from the aqueous solution following preconcentration by liquid-liquid or liquid-solid extraction.

REFERENCES:
patent: 3453068 (1969-07-01), Taue
patent: 3598519 (1971-08-01), Chiola et al.
patent: 3763303 (1973-10-01), Khusi et al.
patent: 4046852 (1977-09-01), Vertes et al.
Jenkins et al., "J. Appl. Chem.", vol. 14, 1964, pp. 449-454.

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