GB413134A - Process and apparatus for roasting sulphide ores - Google Patents

Process and apparatus for roasting sulphide ores

Info

Publication number
GB413134A
GB413134A GB2335733A GB2335733A GB413134A GB 413134 A GB413134 A GB 413134A GB 2335733 A GB2335733 A GB 2335733A GB 2335733 A GB2335733 A GB 2335733A GB 413134 A GB413134 A GB 413134A
Authority
GB
United Kingdom
Prior art keywords
chamber
air
ore
roasting
flue
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
GB2335733A
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.)
American Smelting and Refining Co
Original Assignee
American Smelting and Refining Co
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 American Smelting and Refining Co filed Critical American Smelting and Refining Co
Priority to GB2335733A priority Critical patent/GB413134A/en
Publication of GB413134A publication Critical patent/GB413134A/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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form

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)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

<PICT:0413134/III/1> Sulphide ore in finely divided form and air are introduced into the upper portion of a preheated chamber, additional air is introduced into the lower portion of the chamber in countercurrent relationship, and the gaseous reaction products are withdrawn at a point intermediate the top and bottom of the chamber. A furnace described with reference to the roasting of zinc sulphide ore comprises a refractory-lined chamber 1 into which the ore and air insufficient for complete roasting are introduced through tangentially-disposed pipes 6. The furnace is preheated to 1000 DEG C. by burners set in work doors 7. Additional air is supplied through pipe 16 and hollow rabble arms 8, the latter conveying the roasted ore to outlet 18 whence it is passed to hopper 19. Fumes and volatilized cadmium and lead oxides escape through flue 12 at such a speed that the relatively heavier dust particles settle, vanes 15 being provided to break up the whirling motion of the gases. The flue may be made of chromium steel, and may be provided with an air jacket; its inlet is disposed about one half to two thirds of the way down the chamber. The gases, after separation of oxide fume and other solid matter may contain 8 per cent or more sulphur dioxide and are suitable for acid manufacture. Specification 374,486 is referred to.
GB2335733A 1933-08-22 1933-08-22 Process and apparatus for roasting sulphide ores Expired GB413134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2335733A GB413134A (en) 1933-08-22 1933-08-22 Process and apparatus for roasting sulphide ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2335733A GB413134A (en) 1933-08-22 1933-08-22 Process and apparatus for roasting sulphide ores

Publications (1)

Publication Number Publication Date
GB413134A true GB413134A (en) 1934-07-12

Family

ID=10194347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2335733A Expired GB413134A (en) 1933-08-22 1933-08-22 Process and apparatus for roasting sulphide ores

Country Status (1)

Country Link
GB (1) GB413134A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE936959C (en) * 1947-10-28 1955-12-22 Cons Mining And Smelting Compa Oven for roasting ores
US4449924A (en) * 1981-04-14 1984-05-22 Claudia Ceretti Industrial furnace
CN115282759A (en) * 2022-07-28 2022-11-04 中国恩菲工程技术有限公司 Method and system for treating acidified roasting flue gas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE936959C (en) * 1947-10-28 1955-12-22 Cons Mining And Smelting Compa Oven for roasting ores
US4449924A (en) * 1981-04-14 1984-05-22 Claudia Ceretti Industrial furnace
CN115282759A (en) * 2022-07-28 2022-11-04 中国恩菲工程技术有限公司 Method and system for treating acidified roasting flue gas

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