GB755344A - A continuous process for the roasting of arsenopyrites ores - Google Patents

A continuous process for the roasting of arsenopyrites ores

Info

Publication number
GB755344A
GB755344A GB7804/54A GB780454A GB755344A GB 755344 A GB755344 A GB 755344A GB 7804/54 A GB7804/54 A GB 7804/54A GB 780454 A GB780454 A GB 780454A GB 755344 A GB755344 A GB 755344A
Authority
GB
United Kingdom
Prior art keywords
roasting
ore
arsenopyrites
continuous process
arsenic
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
GB7804/54A
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.)
Instituto Nacional de Industria CETME
Original Assignee
Instituto Nacional de Industria CETME
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 Instituto Nacional de Industria CETME filed Critical Instituto Nacional de Industria CETME
Publication of GB755344A publication Critical patent/GB755344A/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

In the continuous process for roasting arsenopyrites of the parent Specification, wherein the ore is preheated in a separate stage by direct heat exchange with a portion of the sulphur dioxide gases from the roasting stage, the preheated ore is passed to the roasting stage, and the remainder of the sulphur dioxide gases are recovered as arsenic-free gas, the preheating is at, at least, 650 DEG C., even though labile sulphur may be distilled from the ore, as well as the arsenic compounds. This ensures that the roasted ore has an arsenic content less than 0.02 per cent, and is suitable for blast furnaces.
GB7804/54A 1953-12-24 1954-03-17 A continuous process for the roasting of arsenopyrites ores Expired GB755344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES755344X 1953-12-24

Publications (1)

Publication Number Publication Date
GB755344A true GB755344A (en) 1956-08-22

Family

ID=8246373

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7804/54A Expired GB755344A (en) 1953-12-24 1954-03-17 A continuous process for the roasting of arsenopyrites ores

Country Status (1)

Country Link
GB (1) GB755344A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998006878A1 (en) * 1996-08-12 1998-02-19 Ug Plus International Inc. Precious metal recovery from refractory sulphidic ores

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998006878A1 (en) * 1996-08-12 1998-02-19 Ug Plus International Inc. Precious metal recovery from refractory sulphidic ores

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