Method of obtaining copper from ore

Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C423S036000

Reexamination Certificate

active

07842120

ABSTRACT:
A method of obtaining copper from feedstock includes: providing feedstock into acid solution including chloride and bromide of one of alkali metal and alkali earth metal, and one of chloride of copper and iron and bromide of copper and iron; leaching monovalent copper and divalent copper with use of oxidizing power of at least one of iron ion and copper ion, with air being blown into the acid solution under an atmospheric pressure at a temperature less than a boiling point of the acid solution; solid-liquid separating the acid solution; blowing air into the solution; oxidizing copper in the solution; coprecipitating iron and impurity; extracting copper from the solution from which deposition including the coprecipitate is separated; obtaining the extracted copper into sulfuric acid solution as copper sulfate; obtaining copper from the copper sulfate; and recycling hydrochloric acid generated in the extracting in another copper leaching.

REFERENCES:
patent: 4023964 (1977-05-01), DeMarthe et al.
patent: 4337128 (1982-06-01), Haakonsen et al.
patent: 5232491 (1993-08-01), Corrans et al.
patent: 7510593 (2009-03-01), Heimala et al.
patent: 7682420 (2010-03-01), Abe et al.
patent: 669906 (1994-01-01), None
patent: 1105410 (1981-07-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of obtaining copper from ore does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of obtaining copper from ore, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of obtaining copper from ore will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4189538

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.