GB151698A - Improvements in the treatment of argentiferous sulphide ores - Google Patents

Improvements in the treatment of argentiferous sulphide ores

Info

Publication number
GB151698A
GB151698A GB15783/19A GB1578319A GB151698A GB 151698 A GB151698 A GB 151698A GB 15783/19 A GB15783/19 A GB 15783/19A GB 1578319 A GB1578319 A GB 1578319A GB 151698 A GB151698 A GB 151698A
Authority
GB
United Kingdom
Prior art keywords
lead
zinc sulphide
silver
heat treatment
chloride
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
GB15783/19A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB15783/19A priority Critical patent/GB151698A/en
Publication of GB151698A publication Critical patent/GB151698A/en
Expired 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
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/10—Hydrochloric acid, other halogenated acids or salts thereof
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

In a process of the kind described in Specification 127,641 in which lead zinc sulphide ores containing silver are treated with brine or the like and an acid such as hydrochloric acid, sulphuric acid, or alkali bisulphate for dissolving the lead and silver and leaving the zinc sulphide unattacked, the solubility of the silver is increased by a suitable heat treatment of the ore or of the residual zinc sulphide when containing silver. The heat treatment may be a simple heating in a closed vessel or in an open vessel in contact with air, or in a neutral or reducing atmosphere such as carbon dioxide, carbon monoxide, hydrogen, and nitrogen, temperatures of 400-700 DEG C. being mentioned, the time of heating being about one hour. Alternatively, the heat treatment may be effected in the presence of a reagent which acts upon some or all of the lead sulphide, for instance a halogen salt such as sodium chloride in the presence of an oxidizing gas at a temperature above 400 DEG C., and in this case the temperature may be high enough to volatilize some of the lead as chloride or oxychloride, the conditions, however, being such that the zinc sulphide remains for the most part undecomposed; a temperature of 861 DEG C. is mentioned in this connexion. The solvents mentioned are sodium magnesium or calcium chloride containing hydrochloric acid or a salt such as cupric chloride, or both. Specification 129,773 is referred to.
GB15783/19A 1919-06-23 1919-06-23 Improvements in the treatment of argentiferous sulphide ores Expired GB151698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15783/19A GB151698A (en) 1919-06-23 1919-06-23 Improvements in the treatment of argentiferous sulphide ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15783/19A GB151698A (en) 1919-06-23 1919-06-23 Improvements in the treatment of argentiferous sulphide ores

Publications (1)

Publication Number Publication Date
GB151698A true GB151698A (en) 1920-09-23

Family

ID=10065370

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15783/19A Expired GB151698A (en) 1919-06-23 1919-06-23 Improvements in the treatment of argentiferous sulphide ores

Country Status (1)

Country Link
GB (1) GB151698A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381109A2 (en) * 1977-02-16 1978-09-15 Uop Inc METAL LEAD PRODUCTION PROCESS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381109A2 (en) * 1977-02-16 1978-09-15 Uop Inc METAL LEAD PRODUCTION PROCESS

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