GB396058A - Process for eliminating arsenic and antimony from iron ores and manganese ores - Google Patents

Process for eliminating arsenic and antimony from iron ores and manganese ores

Info

Publication number
GB396058A
GB396058A GB2404/32A GB240432A GB396058A GB 396058 A GB396058 A GB 396058A GB 2404/32 A GB2404/32 A GB 2404/32A GB 240432 A GB240432 A GB 240432A GB 396058 A GB396058 A GB 396058A
Authority
GB
United Kingdom
Prior art keywords
ore
ores
antimony
temperature
gas
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
GB2404/32A
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.)
Vereinigte Stahlwerke AG
Original Assignee
Vereinigte Stahlwerke AG
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 Vereinigte Stahlwerke AG filed Critical Vereinigte Stahlwerke AG
Publication of GB396058A publication Critical patent/GB396058A/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
    • C22B1/11—Removing sulfur, phosphorus or arsenic other than by roasting
    • 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
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating

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

Arsenic and antimony are eliminated from iron and manganese ores by heating the ore to a temperature above 500 DEG C. and then bringing it into contact with a mixture of carbon dioxide and a reducing gas, the amount of reducing gas being insufficient to reduce the ore to metal or to form metallic carbides at the temperature used. The temperature is preferably kept below the sintering temperature of the ore, usually about 1000 DEG C. The reducing gas may be carbon monoxide or the carbon monoxide may be replaced wholly or partly by other reducing gases such as hydrogen, hydrocarbons, waste gases from furnaces, blast furnace gas, coking oven gas, waste gases from lime kilns, &c. The content of carbon dioxide in the mixture is preferably increased gradually as the reaction proceeds and may reach 100 per cent towards the end of the process.
GB2404/32A 1931-02-09 1932-01-26 Process for eliminating arsenic and antimony from iron ores and manganese ores Expired GB396058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE396058X 1931-02-09

Publications (1)

Publication Number Publication Date
GB396058A true GB396058A (en) 1933-07-26

Family

ID=6396968

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2404/32A Expired GB396058A (en) 1931-02-09 1932-01-26 Process for eliminating arsenic and antimony from iron ores and manganese ores

Country Status (1)

Country Link
GB (1) GB396058A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102517439A (en) * 2012-01-10 2012-06-27 中南大学 Method for selectively roasting and separating tin, zinc and arsenic in compound iron ore containing tin, zinc and arsenic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102517439A (en) * 2012-01-10 2012-06-27 中南大学 Method for selectively roasting and separating tin, zinc and arsenic in compound iron ore containing tin, zinc and arsenic

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