Chemistry of inorganic compounds – Halogen or compound thereof – Plural metal or metal and ammonium containing
Patent
1982-05-19
1985-10-08
Thomas, Earl C.
Chemistry of inorganic compounds
Halogen or compound thereof
Plural metal or metal and ammonium containing
423 42, C01B 902
Patent
active
045459720
ABSTRACT:
Cuprous chloride, which is contained in a reduced leach solution or pregnant liquor, can be recovered as a complex salt of alkali metal chloride, such as potassium chloride, or alkaline earth metal chloride or ammonium chloride. The salts are produced by oxidation of a copper ore, such as chalcopyrite, with ferric chloride and cupric chloride, and after removal of insolubles, by adding sufficient metallic copper to the solution to reduce cupric ions to cuprous ions so as to provide a solution containing 1.5 to 2.5 molal potassium chloride, or other metal or ammonium chloride, and cooling the resultant saturated solution to precipitate the potassium chloride-cuprous chloride complex salts and recovering the complex salts. Also provided as a method for recovery of pure copper metal by electrolysis of solutions derived from the complex salts wherein the impurities are diverted to an anode loop which is separated from the cathode loop by a diaphragm.
REFERENCES:
patent: 3736238 (1973-05-01), Kruesi et al.
patent: 3767543 (1973-06-01), Hazen
patent: 3785944 (1974-01-01), Atwood
patent: 3798026 (1974-03-01), Milner et al.
patent: 3879272 (1975-04-01), Atwood
patent: 3901776 (1975-08-01), Kruesi et al.
patent: 3972711 (1976-08-01), Goens et al.
patent: 4013457 (1977-03-01), Goens et al.
patent: 4025400 (1977-05-01), Cook et al.
patent: 4039324 (1977-08-01), Stephens, Jr. et al.
patent: 4101315 (1978-07-01), Peters
patent: 4152142 (1979-05-01), Schlitt, III et al.
Gmelin's Handbuch Der Anorganischen Chemie, #60 Teil B, Lieferung 3, Verlag Chemie (1965) pp. 1017-1019.
Malik et al., in Zeitschrift fur Anorganische und Allgemeine Chemie, vol. 299 (1959) pp. 322-327.
Duval Corporation
Thomas Earl C.
LandOfFree
Process for recovery of metal chloride and cuprous chloride comp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for recovery of metal chloride and cuprous chloride comp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for recovery of metal chloride and cuprous chloride comp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2219157