Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group vib metal
Patent
1985-07-16
1986-12-16
Carter, H. T.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group vib metal
423 59, 423 61, 502 23, 502 24, C01G 4100
Patent
active
046296069
ABSTRACT:
The present invention provides a process for recovering a tungsten compound from a waste liquor containing a high-boiling organic compound and the tungsten compound, which process comprises the steps of spray-burning said waste liquor at an air ratio of 1.05 or higher under conditions of a temperature and a residence time which lie within the region of a pentagon defined by points A, B, C, D, and E in FIG. 1; quenching the combustion product by immediately bringing it into direct contact with water; and recovering the tungsten compound.
REFERENCES:
patent: 3453068 (1969-07-01), Tave
patent: 4197161 (1980-04-01), Friedrich et al.
Abe Iwao
Hirabayashi Teruhiko
Imagire Yoshiyuki
Kitagawa Toshifumi
Murakami Yasukazu
Carter H. T.
Daicel Chemical Industries Ltd.
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