CA2261527A1 - Method of pretreating ore - Google Patents

Method of pretreating ore Download PDF

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Publication number
CA2261527A1
CA2261527A1 CA 2261527 CA2261527A CA2261527A1 CA 2261527 A1 CA2261527 A1 CA 2261527A1 CA 2261527 CA2261527 CA 2261527 CA 2261527 A CA2261527 A CA 2261527A CA 2261527 A1 CA2261527 A1 CA 2261527A1
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CA
Canada
Prior art keywords
ore
pretreating
kiln
hot gases
helium
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.)
Granted
Application number
CA 2261527
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French (fr)
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CA2261527C (en
Inventor
Joseph Iwasenko
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA 2261527 priority Critical patent/CA2261527C/en
Publication of CA2261527A1 publication Critical patent/CA2261527A1/en
Application granted granted Critical
Publication of CA2261527C publication Critical patent/CA2261527C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • 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

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  • 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

A method of pretreating ore involves placing ore into a kiln. Hot gases are circulated at temperatures in excess of 1000 degree fahrenheit in the kiln to heat the ore. The hot gases are a mixture of helium and hydrogen with a helium content of at least 20% by volume in order to avoid combustion or oxidization. Ore subjected to this treatment tends to crumble, which facilitates subsequent processing.
CA 2261527 1999-02-12 1999-02-12 Method of pretreating ore Expired - Fee Related CA2261527C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2261527 CA2261527C (en) 1999-02-12 1999-02-12 Method of pretreating ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2261527 CA2261527C (en) 1999-02-12 1999-02-12 Method of pretreating ore

Publications (2)

Publication Number Publication Date
CA2261527A1 true CA2261527A1 (en) 1999-12-20
CA2261527C CA2261527C (en) 2006-01-03

Family

ID=29555136

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2261527 Expired - Fee Related CA2261527C (en) 1999-02-12 1999-02-12 Method of pretreating ore

Country Status (1)

Country Link
CA (1) CA2261527C (en)

Also Published As

Publication number Publication date
CA2261527C (en) 2006-01-03

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Legal Events

Date Code Title Description
EEER Examination request
FZDC Correction of dead application (reinstatement)
MKLA Lapsed

Effective date: 20140212