Recovery of zinc and ammonium chloride

Details Recovery of zinc and ammonium chloride Recovery of zinc and ammonium chloride

1988-02-26

1989-09-12

Stoll, Robert L.

Chemistry of inorganic compounds

Halogen or compound thereof

Plural metal or metal and ammonium containing

423101, C01G 900, C01G 904

Patent

active

048658316

ABSTRACT:
The zinc and ammonia values in solutions containing zinc chloride or zinc monoammine chloride and ammonium chloride can be recovered by adding ammonia to a pH of about 5.5 to about 8.5 and separating the precipitated zinc diammine chloride from the residual aqueous solution of ammonium chloride. The zinc diammine chloride can be used as is or further converted to anhydrous zinc chloride and ammonia and the aqueous solution of ammonium chloride can be used as is or basified to recover the ammonia.

REFERENCES:
patent: 2012809 (1932-02-01), Derick
patent: 2145817 (1937-04-01), Stoops
patent: 2288405 (1940-02-01), Kepfer
patent: 3967957 (1976-07-01), Fonseca
patent: 4500498 (1985-02-01), Kruesi et al.
patent: 4703123 (1987-10-01), Murphy
Sutherland, M. M. J., A Text-Book of Inorganic Chemistry, vol. X, The Metal-Ammines, London, 1928, pp. 47-48.
O. Erametsa et al., Soumen Kemistilehti, B 39(12), pp. 277-280, (1966, (Chem. Abs. 67, 94805z, (1967)).
N. C. Cahoon, Trans. Electrochem. Soc., 92, p. 7 (1947), (Chem. Abs., 42, 43a (1948)).

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