EP0274187A3 - Improvements in or relating to the fluidised-bed roasting of sulphide minerals - Google Patents

Improvements in or relating to the fluidised-bed roasting of sulphide minerals Download PDF

Info

Publication number
EP0274187A3
EP0274187A3 EP87309351A EP87309351A EP0274187A3 EP 0274187 A3 EP0274187 A3 EP 0274187A3 EP 87309351 A EP87309351 A EP 87309351A EP 87309351 A EP87309351 A EP 87309351A EP 0274187 A3 EP0274187 A3 EP 0274187A3
Authority
EP
European Patent Office
Prior art keywords
fluidised
bed
relating
proportion
sulphide minerals
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.)
Withdrawn
Application number
EP87309351A
Other languages
German (de)
French (fr)
Other versions
EP0274187A2 (en
Inventor
Alan Johnson
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.)
Commonwealth Scientific and Industrial Research Organization CSIRO
Electrolytic Zinc Company of Australasia Ltd
Original Assignee
Commonwealth Scientific and Industrial Research Organization CSIRO
Electrolytic Zinc Company of Australasia 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 Commonwealth Scientific and Industrial Research Organization CSIRO, Electrolytic Zinc Company of Australasia Ltd filed Critical Commonwealth Scientific and Industrial Research Organization CSIRO
Publication of EP0274187A2 publication Critical patent/EP0274187A2/en
Publication of EP0274187A3 publication Critical patent/EP0274187A3/en
Withdrawn legal-status Critical Current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
    • 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)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Fertilizers (AREA)

Abstract

A process for improving the fluidising properties of material in the bed of a fluidised-bed roaster, said material including particles in fine, intermediate, and coarse size ranges, is characterised by increasing the proportion of material of intermediate size range therein. The advantages that can be gained by increasing the proportion of material in the intermediate particle size range include better gas and solid contacting, and an improvement in the ability of the bed to carry a greater proportion of coarse lumps as well as rejecting the fine sticky particles.
EP87309351A 1986-12-24 1987-10-22 Improvements in or relating to the fluidised-bed roasting of sulphide minerals Withdrawn EP0274187A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU9688/86 1986-12-24
AU968886 1986-12-24

Publications (2)

Publication Number Publication Date
EP0274187A2 EP0274187A2 (en) 1988-07-13
EP0274187A3 true EP0274187A3 (en) 1990-01-17

Family

ID=3700476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87309351A Withdrawn EP0274187A3 (en) 1986-12-24 1987-10-22 Improvements in or relating to the fluidised-bed roasting of sulphide minerals

Country Status (4)

Country Link
EP (1) EP0274187A3 (en)
KR (1) KR930005070B1 (en)
ES (1) ES2008399A6 (en)
NO (1) NO875386L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5803949A (en) * 1996-04-29 1998-09-08 Cominco Ltd. Fluidized bed roasting process
AU734974B2 (en) * 1996-04-29 2001-06-28 Teck Cominco Metals Ltd Fluidized bed roasting process
US6190625B1 (en) * 1997-08-07 2001-02-20 Qualchem, Inc. Fluidized-bed roasting of molybdenite concentrates

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE545578A (en) *
US2313019A (en) * 1940-10-15 1943-03-02 Lohse Julius Metallurgical process
US2855288A (en) * 1956-09-04 1958-10-07 New Jersey Zinc Co Method of fluid bed roasting
US2855287A (en) * 1955-09-26 1958-10-07 New Jersey Zinc Co Fluid bed roasting method for separating and recovering cd-pb-zn components
GB809765A (en) * 1956-09-04 1959-03-04 New Jersey Zinc Co Improvements in roasting zinc sulfide ores
US2893839A (en) * 1957-03-05 1959-07-07 Metallgesellschaft Ag Process for treating comminuted solids with gases
US3854931A (en) * 1970-04-20 1974-12-17 Boliden Ab Roasting, coarsening and hardening of iron sulfide materials
US3955960A (en) * 1970-04-20 1976-05-11 Boliden Aktiebolag Method for roasting finely divided sulphide material consisting of magnetic pyrites or of a finely divided material derived from a pyritic material, in which thermally splittable sulphur is expelled by partial roasting or other thermal treatment
US4231791A (en) * 1978-07-04 1980-11-04 Metallurgical Processes Ltd. Roasting of sulphide materials
US4626279A (en) * 1983-06-06 1986-12-02 Boliden Aktiebolag Method for processing copper smelting materials and the like containing high percentages of arsenic and/or antimony

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE545578A (en) *
US2313019A (en) * 1940-10-15 1943-03-02 Lohse Julius Metallurgical process
US2855287A (en) * 1955-09-26 1958-10-07 New Jersey Zinc Co Fluid bed roasting method for separating and recovering cd-pb-zn components
US2855288A (en) * 1956-09-04 1958-10-07 New Jersey Zinc Co Method of fluid bed roasting
GB809765A (en) * 1956-09-04 1959-03-04 New Jersey Zinc Co Improvements in roasting zinc sulfide ores
US2893839A (en) * 1957-03-05 1959-07-07 Metallgesellschaft Ag Process for treating comminuted solids with gases
US3854931A (en) * 1970-04-20 1974-12-17 Boliden Ab Roasting, coarsening and hardening of iron sulfide materials
US3955960A (en) * 1970-04-20 1976-05-11 Boliden Aktiebolag Method for roasting finely divided sulphide material consisting of magnetic pyrites or of a finely divided material derived from a pyritic material, in which thermally splittable sulphur is expelled by partial roasting or other thermal treatment
US4231791A (en) * 1978-07-04 1980-11-04 Metallurgical Processes Ltd. Roasting of sulphide materials
US4626279A (en) * 1983-06-06 1986-12-02 Boliden Aktiebolag Method for processing copper smelting materials and the like containing high percentages of arsenic and/or antimony

Also Published As

Publication number Publication date
EP0274187A2 (en) 1988-07-13
NO875386D0 (en) 1987-12-22
KR930005070B1 (en) 1993-06-15
NO875386L (en) 1988-06-27
KR880007774A (en) 1988-08-29
ES2008399A6 (en) 1989-07-16

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Inventor name: JOHNSON, ALAN