GB452832A - Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials - Google Patents

Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials

Info

Publication number
GB452832A
GB452832A GB292936A GB292936A GB452832A GB 452832 A GB452832 A GB 452832A GB 292936 A GB292936 A GB 292936A GB 292936 A GB292936 A GB 292936A GB 452832 A GB452832 A GB 452832A
Authority
GB
United Kingdom
Prior art keywords
solution
precious metals
treatment
value
iron
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.)
Expired
Application number
GB292936A
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.)
HENRI BUTTGENBACH
MINES REUNIES
Original Assignee
HENRI BUTTGENBACH
MINES REUNIES
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
Application filed by HENRI BUTTGENBACH, MINES REUNIES filed Critical HENRI BUTTGENBACH
Priority to GB292936A priority Critical patent/GB452832A/en
Publication of GB452832A publication Critical patent/GB452832A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B11/00Obtaining noble metals
    • C22B11/06Chloridising

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)

Abstract

Materials containing precious metals, particularly poor ores or tailings, are treated with a solution of an oxidizing halogen compound such as a hypochlorite, the pH value of which is adjusted to a value between 6,5 and 5, air under pressure being preferably blown through the solution during the treatment. The solution obtained, containing precious metals such as gold, platinum, palladium, iridium, and osmium, non-ferrous metals such as copper, cobalt, nickel, and bismuth, and also iron and aluminium, is subjected to the action of a reducing agent such as charcoal to precipitate the precious metals, and then electrolysed to regenerate the hypochlorite &c. and to precipitate the remaining metals other than iron and aluminium which remain in solution. After adjustment of the pH value if necessary the regenerated solution is used again. Bromine or iodine compounds may be used for the extraction, which is effected with the ore in a coarsely ground condition, and in the raw or roasted state. An example relates to the treatment of tailings obtained by floatation of a mispickel ore, which contain mainly iron, arsenic and sulphur, and about 1 grm. of gold per ton.
GB292936A 1936-01-31 1936-01-31 Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials Expired GB452832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB292936A GB452832A (en) 1936-01-31 1936-01-31 Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB292936A GB452832A (en) 1936-01-31 1936-01-31 Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials

Publications (1)

Publication Number Publication Date
GB452832A true GB452832A (en) 1936-08-31

Family

ID=9748711

Family Applications (1)

Application Number Title Priority Date Filing Date
GB292936A Expired GB452832A (en) 1936-01-31 1936-01-31 Improvements in process of extracting precious metals, more particularly applicable to the treatment of poor ores or materials

Country Status (1)

Country Link
GB (1) GB452832A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0176100A1 (en) * 1984-09-26 1986-04-02 Austria Metall Aktiengesellschaft Hydrometallurgical process for treating electrolytic copper refinery anode slimes
US4666514A (en) * 1985-01-25 1987-05-19 Austria Metall Aktiengesellschaft Hydrometallurgical process for recovering silver from copper-electrolysis anode sludge
WO2002053788A1 (en) * 2000-12-29 2002-07-11 Nichromet Extraction Inc. Method for the recovery of base and precious metals by extractive chloridation
RU2768070C1 (en) * 2021-02-03 2022-03-23 Публичное акционерное общество "Горно-металлургическая компания "Норильский никель" Method for processing mother solutions of platinum and palladium refining

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0176100A1 (en) * 1984-09-26 1986-04-02 Austria Metall Aktiengesellschaft Hydrometallurgical process for treating electrolytic copper refinery anode slimes
US4666514A (en) * 1985-01-25 1987-05-19 Austria Metall Aktiengesellschaft Hydrometallurgical process for recovering silver from copper-electrolysis anode sludge
WO2002053788A1 (en) * 2000-12-29 2002-07-11 Nichromet Extraction Inc. Method for the recovery of base and precious metals by extractive chloridation
RU2768070C1 (en) * 2021-02-03 2022-03-23 Публичное акционерное общество "Горно-металлургическая компания "Норильский никель" Method for processing mother solutions of platinum and palladium refining

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