Process for recovering Ni (II), Cu (II) and Co (II) from an ammo

Details Process for recovering Ni (II), Cu (II) and Co (II) from an ammo Process for recovering Ni (II), Cu (II) and Co (II) from an ammo

1980-02-28

1981-03-24

Hearn, Brian E.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

423139, 75101BE, 01G 5300, C01G 300, C01G 5100

Patent

active

042580161

ABSTRACT:
There is disclosed a process for recovering nickel (II), copper (II) and cobalt (II) from an ammoniacal-ammonium sulfate leach liquor. This process includes the step of adjusting the pH of the leach liquor prior to co-extracting the nickel and the copper values. Cobalt is recovered as cobalt (II) by reduction of cobalt (III) to cobalt (II) following by an extraction step.

REFERENCES:
patent: 3761249 (1973-09-01), Ritcey
patent: 3929468 (1975-12-01), Siemens
patent: 4005173 (1977-01-01), Pemsler
patent: 4065502 (1977-12-01), MacKay
patent: 4083915 (1978-04-01), Hubred
patent: 4146572 (1979-03-01), Cardwell
patent: 4152396 (1979-05-01), MacKay
Ritcey, G. et al., "Separation of Copper from Nickel and Cobalt by Liquid-Liquid Extraction from Ammoniacol Solutions", CIM Bulletin, May 1972, pp. 46-50.
Siemens et al., "Process for Recovery of Nickel, Cobalt and Copper from Domestic Laterites", Mining Congress Journal, Jan. 1977, pp. 29-34.

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