Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group vib metal
Patent
1986-10-03
1989-03-21
Garvin, Patrick P.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group vib metal
423 55, C01G 3900, C01G 3902
Patent
active
048141496
ABSTRACT:
The present invention is a process for selectively precipitating molybdenum in a form that is substantially free from vanadium impurities. The molybdenum is precipitated in the form of ammonium octamolybdate which has a molybdenum to vanadium ratio of about 400:1 in an initial crystallization and a ratio of about 1300:1 in a subsequent recrystallization.
REFERENCES:
patent: 4500495 (1985-02-01), Hubred et al.
Mellor, A Comprehensive Treatise on Inorganic and Theoretical Chemistry, vol. XI, p. 595, (1948), pub. by Longmans, Green & Co., N.Y., N.Y.
Chevron Research Company
De Jonghe T. G.
Garvin Patrick P.
La Paglia S. R.
McGarrigle P. L.
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