GB243075A - Improvements in or relating to leaching processes for the extraction of metals from their ores and the like - Google Patents

Improvements in or relating to leaching processes for the extraction of metals from their ores and the like

Info

Publication number
GB243075A
GB243075A GB19910/24A GB1991024A GB243075A GB 243075 A GB243075 A GB 243075A GB 19910/24 A GB19910/24 A GB 19910/24A GB 1991024 A GB1991024 A GB 1991024A GB 243075 A GB243075 A GB 243075A
Authority
GB
United Kingdom
Prior art keywords
ore
gas
liquor
heated
extraction
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
GB19910/24A
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.)
METALS PRODUCTION Ltd
Original Assignee
METALS PRODUCTION 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
Application filed by METALS PRODUCTION Ltd filed Critical METALS PRODUCTION Ltd
Priority to GB19910/24A priority Critical patent/GB243075A/en
Publication of GB243075A publication Critical patent/GB243075A/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
    • C22B3/12—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
    • C22B3/14—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions containing ammonia or ammonium salts
    • 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 the extraction of copper, zinc, or like metals from ores by ammonia solution containing some carbon dioxide, the material, after the leaching liquor is drawn off, is treated with a previously made mixture of steam and ammonia with or without carbon dioxide. The vapours condense on the ore and wash out the remaining solvent without causing any precipitation of metal oxide upon the ore. Preferably the liquor thus formed by condensation is collected and used as leaching liquor for the next batch of ore. The process is advantageously applied to ore which has been treated by the process of Specification 185,242 or 190,246, in which case the ore may contain chrvsocolla and other oxidized copper compounds insoluble in ammoniacal solutions; the ore is first dehydrated at 400 DEG C. and then heated to 340 DEG C. in a reducing gas, while if it contains copper sulphide it may be roasted at 400-500 DEG C. in an oxydizing atmosphere and then heated in a reducing gas at 300-355 DEG C. In an example the ore is heated in gas from a producer the ammonia from the producer gas being washed out and used to replace that lost during the process of leaching. The mixed vapours required for the final treatment of the ore are obtained by evaporating the ammonia solution obtained from the producer gas and adding carbon dioxide from the combustion of the producer gas before its final discharge from the apparatus. This combustion may supply the heat required in the various operations of the process. In another example the vapours arising from the still in which the extraction liquor is distilled for the precipitation of the copper are employed for the final treatment of the ore. Specifications 220,720 and 228,260 are also referred to.
GB19910/24A 1924-08-22 1924-08-22 Improvements in or relating to leaching processes for the extraction of metals from their ores and the like Expired GB243075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB19910/24A GB243075A (en) 1924-08-22 1924-08-22 Improvements in or relating to leaching processes for the extraction of metals from their ores and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB19910/24A GB243075A (en) 1924-08-22 1924-08-22 Improvements in or relating to leaching processes for the extraction of metals from their ores and the like

Publications (1)

Publication Number Publication Date
GB243075A true GB243075A (en) 1925-11-23

Family

ID=10137170

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19910/24A Expired GB243075A (en) 1924-08-22 1924-08-22 Improvements in or relating to leaching processes for the extraction of metals from their ores and the like

Country Status (1)

Country Link
GB (1) GB243075A (en)

Similar Documents

Publication Publication Date Title
ES449347A1 (en) A method to recover and/or other non-ferreal metals with inclusion of precise metals, from a raw material of sulfurs. (Machine-translation by Google Translate, not legally binding)
US3845189A (en) Hydrometallurgical recovery of nickel values
GB243075A (en) Improvements in or relating to leaching processes for the extraction of metals from their ores and the like
ES447085A1 (en) Recovery of nitric acid soluble transition metals from sulfur and iron containing ores of the same
US2258310A (en) Treatment of spent pickle liquor or the like
US1590525A (en) Process of extracting nickel and cobalt from ferruginous ores
US1835474A (en) Leaching ore
GB251527A (en) An improved process for the treatment of ores for the recovery of titanium, tungstenand tantalum
US2967757A (en) Acid process for the recovery of rhenium values from minerals containing same
US1577411A (en) Art of recovering rare metals from their ores
US1329380A (en) Recovery of molybdenum from its ores
US936762A (en) Process for the recovery of copper from cuprous residues.
US824699A (en) Process of treating refractory ores containing iron sulfids.
US2197241A (en) Method of treating vanadium ores
US1054102A (en) Process of extracting vanadium from carnotite concentrates.
US1964747A (en) Process of separating metals
US1552595A (en) Process for the extraction of cadmium as sulphate
US1415897A (en) Method of treating sulphide ores
US1378699A (en) Method of treating oses
US1807642A (en) Process fob recovery of manganese
US1943333A (en) Method of chloridizing metallurgical ores
US769254A (en) Method of extracting precious metals from their ores.
US900452A (en) Art of separating metals from matte.
US920601A (en) Process of making metal sulfates.
US1837286A (en) Ozone process of obtaining metals from ores