Process of treating dust containing zinc and lead and derived in

Details Process of treating dust containing zinc and lead and derived in Process of treating dust containing zinc and lead and derived in

1981-05-11

1983-03-08

Yudkoff, Norman

Classifying, separating, and assorting solids

Fluid suspension

Liquid

209 2, 209166, 75 25, 210703, 55 84, B03D 114

Patent

active

043760430

ABSTRACT:
Zinc and lead are separated together out of dust derived from a gas-cleaning installation in iron or steel making by a flotation-separation treatment. In order economically to provide a good separation of these metals and to leave a residue which is re-usable in an ore-preparation process in the iron and steel industry, the flotation-separation treatment is at a pH of 7 to 9 and is effective to achieve a separation, according to size of the dust particles, of a floated component in which the zinc and lead are concentrated and a non-floated component which is suitable for re-use.

REFERENCES:
patent: 1254173 (1918-01-01), Terry
patent: 1668202 (1928-05-01), Griswold
patent: 1984386 (1934-12-01), Tschody
patent: 2611485 (1952-09-01), Tseter
patent: 3375069 (1968-03-01), Duval
patent: 3770213 (1973-11-01), Lynn
patent: 3998628 (1976-12-01), Gandor
patent: 4166737 (1979-09-01), DeMarthe
patent: 4191729 (1980-03-01), Rinelli
patent: 4213942 (1980-07-01), Thornton
patent: 4250027 (1981-02-01), Cases

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