GB249764A - Improvements in or relating to the electrolytic production of zinc from ores or the like - Google Patents

Improvements in or relating to the electrolytic production of zinc from ores or the like

Info

Publication number
GB249764A
GB249764A GB2716225A GB2716225A GB249764A GB 249764 A GB249764 A GB 249764A GB 2716225 A GB2716225 A GB 2716225A GB 2716225 A GB2716225 A GB 2716225A GB 249764 A GB249764 A GB 249764A
Authority
GB
United Kingdom
Prior art keywords
ore
roasting
steam
sulphur
zinc
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
GB2716225A
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 EXTRACTION CORP Ltd
Original Assignee
METALS EXTRACTION CORP 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 EXTRACTION CORP Ltd filed Critical METALS EXTRACTION CORP Ltd
Priority to GB2716225A priority Critical patent/GB249764A/en
Publication of GB249764A publication Critical patent/GB249764A/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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/02—Preliminary treatment of ores; Preliminary refining of zinc oxide
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes

Landscapes

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

Abstract

249,764. Field, S., Petersson, E. F., Harris, W. E., and Metals Extraction Corporation, Ltd. Dec. 29, 1924. Roasting.- A zinc sulphide ore or product, containing iron and/or manganese, is roasted in air preferably at 650‹ C. until the sulphur content is so far reduced, for instance to about 9 per cent, that the admission of steam does not cause the production of sulphuretted hydrogen. Steam is then admitted for the remainder of the roasting, sulphur dioxide being liberated as before. This process prevents or minimizes the production of manganites and ferrites. A higher temperature may be used if desired. An example describes the treatment of Broken Hill ore. The roasted ore is treated with hot sulphuric acid, the zinc sulphate being purified and electrolyzed for example in the manner described in Specification 249,609, [Class 41, Electrolysis]. The Provisional Specification describes the roasting of the ore under such conditions that a minimum quantity of ferrites and manganites are formed, the proportion of sulphates formed being arranged to make up the losses of sulphuric acid in the extraction and electrolytic processes. Another method of roasting is also described in which the ore is heated in a muffle in steam so as to produce oxides and sulphates as before, but the sulphur is liberated as sulphuretted hydrogen. Specification 26350/12 also is referred to.
GB2716225A 1924-12-29 1924-12-29 Improvements in or relating to the electrolytic production of zinc from ores or the like Expired GB249764A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2716225A GB249764A (en) 1924-12-29 1924-12-29 Improvements in or relating to the electrolytic production of zinc from ores or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2716225A GB249764A (en) 1924-12-29 1924-12-29 Improvements in or relating to the electrolytic production of zinc from ores or the like

Publications (1)

Publication Number Publication Date
GB249764A true GB249764A (en) 1926-04-01

Family

ID=10255198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2716225A Expired GB249764A (en) 1924-12-29 1924-12-29 Improvements in or relating to the electrolytic production of zinc from ores or the like

Country Status (1)

Country Link
GB (1) GB249764A (en)

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