[go: up one dir, main page]

FR2197070A1 - Leaching copper from gangue with sulphurous acid - keeping the leaching soln. below ambient temp. to prevent formation of chevreul salt - Google Patents

Leaching copper from gangue with sulphurous acid - keeping the leaching soln. below ambient temp. to prevent formation of chevreul salt

Info

Publication number
FR2197070A1
FR2197070A1 FR7330432A FR7330432A FR2197070A1 FR 2197070 A1 FR2197070 A1 FR 2197070A1 FR 7330432 A FR7330432 A FR 7330432A FR 7330432 A FR7330432 A FR 7330432A FR 2197070 A1 FR2197070 A1 FR 2197070A1
Authority
FR
France
Prior art keywords
leaching
gangue
soln
keeping
prevent formation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7330432A
Other languages
French (fr)
Other versions
FR2197070B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anglo American Corp of South Africa Pty Ltd
Original Assignee
Anglo American Corp of South Africa Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from ZA725768A external-priority patent/ZA725768B/en
Application filed by Anglo American Corp of South Africa Pty Ltd filed Critical Anglo American Corp of South Africa Pty Ltd
Publication of FR2197070A1 publication Critical patent/FR2197070A1/en
Application granted granted Critical
Publication of FR2197070B1 publication Critical patent/FR2197070B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0063—Hydrometallurgy
    • C22B15/0065—Leaching or slurrying
    • C22B15/0067—Leaching or slurrying with acids or salts thereof
    • C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

The leading soln is kept at 25 degrees C during backing to prevent formation of Chevreul salt Cu (CuSO3)2.2H2O which otherwise precipitates amongst the gangue and is not recoverable economically. The ppte. does not form at low temp. Prefd. working temp. range is 10-15 degrees C, using a pH of 1.3-1.8.
FR7330432A 1972-08-22 1973-08-22 Leaching copper from gangue with sulphurous acid - keeping the leaching soln. below ambient temp. to prevent formation of chevreul salt Granted FR2197070A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA725768A ZA725768B (en) 1972-08-22 1972-08-22 Benefication of metallic ores
ZA732600 1973-04-16

Publications (2)

Publication Number Publication Date
FR2197070A1 true FR2197070A1 (en) 1974-03-22
FR2197070B1 FR2197070B1 (en) 1977-09-09

Family

ID=27131057

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7330432A Granted FR2197070A1 (en) 1972-08-22 1973-08-22 Leaching copper from gangue with sulphurous acid - keeping the leaching soln. below ambient temp. to prevent formation of chevreul salt

Country Status (6)

Country Link
JP (1) JPS49133216A (en)
CA (1) CA992328A (en)
FI (1) FI62343C (en)
FR (1) FR2197070A1 (en)
IE (1) IE38111B1 (en)
OA (1) OA04485A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR326325A (en) * 1902-11-14 1903-05-21 Von Gernet Copper Ltd Soc Improved process and apparatus for extracting copper from its ore
US1357952A (en) * 1919-09-30 1920-11-09 Niels C Christensen Process of treating copper ores

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR326325A (en) * 1902-11-14 1903-05-21 Von Gernet Copper Ltd Soc Improved process and apparatus for extracting copper from its ore
US1357952A (en) * 1919-09-30 1920-11-09 Niels C Christensen Process of treating copper ores

Also Published As

Publication number Publication date
CA992328A (en) 1976-07-06
FR2197070B1 (en) 1977-09-09
IE38111L (en) 1974-02-22
OA04485A (en) 1980-03-15
IE38111B1 (en) 1977-12-21
JPS49133216A (en) 1974-12-20
FI62343C (en) 1982-12-10
FI62343B (en) 1982-08-31

Similar Documents

Publication Publication Date Title
MW6373A1 (en) Recovery of zinc from sulphides by direct pressure leaching
PH9754A (en) Recovery of metal values from ore concentrates
YU174272A (en) Process for the purification of zinc sulfate solutions obtained by zinc ore leaching
CA1006843A (en) Recovering metal from sulfide ores electrolytically with chloride
Lennon Working class hero
Hatch et al. Aminomethylenephosphonate-zinc mixtures control oxygen corrosion
ES398622A1 (en) Steam-dry iron
FR2197070A1 (en) Leaching copper from gangue with sulphurous acid - keeping the leaching soln. below ambient temp. to prevent formation of chevreul salt
CA1007054A (en) Hydrometallurgical process for the recovery of copper from sulphide ores by oxidation with air or oxygen in ammoniacal solutions
GB1352867A (en) Tarnish-resistant copper or copper base alloy
IL41674A0 (en) Recovery of copper,zinc or nickel from sulfide concentrates
SE407811B (en) PROCEDURE ACCORDING TO 7303107-2 FOR THE TREATMENT OF SULFID ORES, SPECIAL FOR EXTRACTION OF SULFID MINERALS
OA03571A (en) Process for the controlled reduction of nickel-bearing iron oxide ores.
SE308902B (en)
ES416813A1 (en) Procedure to stabilize and precipitate concentrated protease aqueous solutions. (Machine-translation by Google Translate, not legally binding)
FR2195694A1 (en) Decopperizing lead - using caustic alkali and pyrite
CH519914A (en) Extraction of kallikrein and trypsin inhibitors - using mineral acids
FR2060106A1 (en) Bath for electroplating gold
FR2193809A1 (en) Purifcn of potassium sorbate solns - by treatment with coal-based active carbon
BE769840A (en) IRON ORE AGGLOMERATION PROCESS.
FR2176586A1 (en) Carnallite ore beneficiation - extracting mangesium chloride selectively with satd aliphatic alcohol
BE745320A (en) IRON ORE AGGLOMERATION CONTROL PROCESS,
FR2180892A1 (en) Sulphidic roasting nickel - contg ores in aqueous mud form contg chloride ions with controlled temp and pres
ZA7148B (en) Improvements in or relating to the recovery of zinc from ores
AU460946B2 (en) Improved method recovering minerals from ores

Legal Events

Date Code Title Description
ST Notification of lapse