Leaching of sulphidic mattes containing non-ferrous metals and i

Details Leaching of sulphidic mattes containing non-ferrous metals and i Leaching of sulphidic mattes containing non-ferrous metals and i

1982-10-12

1984-02-14

Carter, Herbert T.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Platinum group metal

423 36, 423 41, 423109, 423147, 423571, 75101R, 75115, C01G 5500, C01G 310, C01G 5110, C01G 5310

Patent

active

044316135

ABSTRACT:
A method of treating sulphidic mattes containing from 5% to 60% iron; from 15% to 40% sulphur together with soluble non-ferrous metals such as copper, cobalt, nickel and zinc and also optionally insoluble non-ferrous metals which term includes platinum group metals gold and silver by a leaching process to effect substantial separation of the non-ferrous metals from iron as well as from insoluble residue material. The matte is contacted in a finely subdivided form with sulphate in acid medium at a temperature of from 70.degree. C. to 120.degree. C. and an oxygen partial pressure of from 50kPa to 1,000kPa. The quantity of sulphate present is at least the stoichiometric amount required for dissolving the soluble non-ferrous metals present but is limited to ensure that a substantial proportion of iron which dissolves simultaneously with the soluble non-ferrous metals precipitates out as it is replaced by dissolving non-ferrous metals.

REFERENCES:
patent: 3909248 (1975-09-01), Ryan et al.
patent: 3962402 (1976-06-01), Touro
patent: 4094668 (1978-06-01), Yannopoulas et al.
patent: 4219354 (1980-08-01), Rastas et al.
patent: 4266972 (1981-05-01), Abad et al.

Affiliated with

Also associated with

Rating

Leaching of sulphidic mattes containing non-ferrous metals and i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Leaching of sulphidic mattes containing non-ferrous metals and i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Leaching of sulphidic mattes containing non-ferrous metals and i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2374655