Treatment of zinc hydroxide slurry and recovery of zinc-containi

Details Treatment of zinc hydroxide slurry and recovery of zinc-containi Treatment of zinc hydroxide slurry and recovery of zinc-containi

1975-04-08

1976-10-12

Stern, Edward

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iib metal

423101, 423544, 423622, 423632, C01G 902, C01G 906

Patent

active

039858588

ABSTRACT:
A dilute aqueous slurry of hydrated zinc oxide is subjected to heat and pressure to obtain solids having improved filtering characteristics. The process is especially useful in the treatment of neutralized waste liquor from the viscose rayon system to provide a more economical method for the recovery of zinc sulfate.

REFERENCES:
patent: 2991884 (1961-07-01), Shackmann
patent: 3674476 (1972-07-01), Tamai et al.
patent: 3886258 (1975-05-01), Cosgrave

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