Extraction process for recovery of rhenium

Details Extraction process for recovery of rhenium Extraction process for recovery of rhenium

1978-07-19

1980-01-22

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group viib metal

423 54, 75101BE, C01G 4700

Patent

active

041850785

ABSTRACT:
A process is disclosed wherein essentially all of the rhenium can be removed from an aqueous solution of molybdenum without the extraction of molybdenum using a particular solvent extraction solution. The extraction solution consists essentially of quaternary ammonium compound and at least about 50 percent by volume of a highly aromatic solvent which dissolves a quaternary ammonium-rhenium complex to the extent of at least 0.1 percent by volume selected from the group consisting of benzene and an aromatic solvent containing primarily lower alkyl benzenes having molecular weights of either 106, 120, 134 or 148 with minor amounts of relatively long chain aliphatic hydrocarbons containing greater than 8 carbon atoms and minor amounts of napthalene.

REFERENCES:
patent: 3244475 (1966-04-01), Churchward
patent: 3495934 (1970-02-01), Ziegenbaly et al.
patent: 3558268 (1971-01-01), Prates et al.
patent: 3739057 (1973-06-01), Daugherty et al.
patent: 3798305 (1974-03-01), Pagnozzi et al.
patent: 3855385 (1974-12-01), Dorosset et al.
patent: 3856915 (1974-12-01), Pagnozzi et al.

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