Recovery of useful products from by-products of phosphate conver

Details Recovery of useful products from by-products of phosphate conver Recovery of useful products from by-products of phosphate conver

1989-12-12

1991-01-22

Rosenberg, Peter D.

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

75419, 75430, 75431, 148615, 148253, C23C 2208

Patent

active

049869779

ABSTRACT:
The process is described for treating the sludge formed in a phosphate conversion bath, and in particular, in zinc phosphate conversion baths to convert the sludge into useful chemical materials thereby eliminating the need for disposal to landfill. The process comprises the steps of

REFERENCES:
patent: 2859145 (1958-11-01), Somers et al.
patent: 3090709 (1963-05-01), Henricks
patent: 3104177 (1963-09-01), Goldsmith
patent: 3307979 (1967-03-01), Upham
patent: 3458364 (1969-07-01), Upham
patent: 3653875 (1972-04-01), Waters

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