GB645977A - Roasting zinc ore - Google Patents

Roasting zinc ore

Info

Publication number
GB645977A
GB645977A GB2037448A GB2037448A GB645977A GB 645977 A GB645977 A GB 645977A GB 2037448 A GB2037448 A GB 2037448A GB 2037448 A GB2037448 A GB 2037448A GB 645977 A GB645977 A GB 645977A
Authority
GB
United Kingdom
Prior art keywords
ore
pipe
fluidized
roasted
auxiliary fuel
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
GB2037448A
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.)
Dorr Co
Original Assignee
Dorr 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 Dorr Co filed Critical Dorr Co
Priority to GB2037448A priority Critical patent/GB645977A/en
Publication of GB645977A publication Critical patent/GB645977A/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/08—Shaft or like vertical or substantially vertical furnaces heated otherwise than by solid fuel mixed with charge

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

<PICT:0645977/III/1> Sulphidic zinc ore is roasted by a fluidized-solids technique at a temperature above that at which zinc sulphate compounds are formed but below that at which sintering occurs, viz. 850-930 DEG C. As shown, the powdered ore concentrate is fed by screw 27 into a refractory-lined, insulated reactor furnace 11, and the ore bed 60 is maintained in a fluidized condition by air or other oxygen-containing gas delivered through pipe 20 below apertured plate 17. A pipe 22 for starting or auxiliary fuel, thermocouples 30-32 and pressure-measuring taps 33, 34 are provided. The roasted ore escapes through conduit 25 and gases through pipe 28 to a cyclone separator. The temperature may be controlled by the use of excess air, by employing comparatively wet ore or by injecting water or another vaporizable, non-combustible liquid into the fluidized bed, or by using auxiliary fuel.
GB2037448A 1948-07-30 1948-07-30 Roasting zinc ore Expired GB645977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2037448A GB645977A (en) 1948-07-30 1948-07-30 Roasting zinc ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2037448A GB645977A (en) 1948-07-30 1948-07-30 Roasting zinc ore

Publications (1)

Publication Number Publication Date
GB645977A true GB645977A (en) 1950-11-15

Family

ID=10144888

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2037448A Expired GB645977A (en) 1948-07-30 1948-07-30 Roasting zinc ore

Country Status (1)

Country Link
GB (1) GB645977A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756986A (en) * 1952-03-21 1956-07-31 Metallgesellschaft Ag Roasting sulfide ores
US2819157A (en) * 1953-07-17 1958-01-07 Dorr Oliver Inc Method of treating sulfide solids under solids fluidizing conditions
US2850371A (en) * 1956-04-11 1958-09-02 Allied Chem Fluid burning of finely divided sulfide ore concentrates
DE974392C (en) * 1949-12-24 1960-12-22 Basf Ag Device for the post-oxidation in the fluidized bed roasting of crushed pyrites
DE976687C (en) * 1951-03-08 1964-03-12 Metallgesellschaft Ag Process for roasting sulphidic zinc ores
US3181944A (en) * 1962-05-07 1965-05-04 Allied Chem Zinc calcine for hydrometallurgical process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974392C (en) * 1949-12-24 1960-12-22 Basf Ag Device for the post-oxidation in the fluidized bed roasting of crushed pyrites
DE976687C (en) * 1951-03-08 1964-03-12 Metallgesellschaft Ag Process for roasting sulphidic zinc ores
US2756986A (en) * 1952-03-21 1956-07-31 Metallgesellschaft Ag Roasting sulfide ores
US2819157A (en) * 1953-07-17 1958-01-07 Dorr Oliver Inc Method of treating sulfide solids under solids fluidizing conditions
US2850371A (en) * 1956-04-11 1958-09-02 Allied Chem Fluid burning of finely divided sulfide ore concentrates
US3181944A (en) * 1962-05-07 1965-05-04 Allied Chem Zinc calcine for hydrometallurgical process
DE1224933B (en) * 1962-05-07 1966-09-15 Allied Chem Process for the production of Roestblende

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