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GB603973A - Improvements relating to the treatment of chromium ores - Google Patents

Improvements relating to the treatment of chromium ores

Info

Publication number
GB603973A
GB603973A GB3106345A GB3106345A GB603973A GB 603973 A GB603973 A GB 603973A GB 3106345 A GB3106345 A GB 3106345A GB 3106345 A GB3106345 A GB 3106345A GB 603973 A GB603973 A GB 603973A
Authority
GB
United Kingdom
Prior art keywords
treatment
improvements relating
chromium
ores
iron
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
GB3106345A
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.)
Hudson Bay Mining and Smelting Co Ltd
Original Assignee
Hudson Bay Mining and Smelting Co 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 Hudson Bay Mining and Smelting Co Ltd filed Critical Hudson Bay Mining and Smelting Co Ltd
Priority to GB3106345A priority Critical patent/GB603973A/en
Publication of GB603973A publication Critical patent/GB603973A/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
    • 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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The method of increasing the ratio of chromium to iron in ores or materials containing chromium and iron oxides, which comprises roasting the ore or material in finely divided form with a reducing agent at a temperature of between about 1135 DEG C. and about 1170 DEG C., for example between about 1140 DEG C. and 1150 DEG C., and leaching the resulting roasted ore with sulphuric acid to dissolve out reduced iron therefrom.
GB3106345A 1945-11-19 1945-11-19 Improvements relating to the treatment of chromium ores Expired GB603973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3106345A GB603973A (en) 1945-11-19 1945-11-19 Improvements relating to the treatment of chromium ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3106345A GB603973A (en) 1945-11-19 1945-11-19 Improvements relating to the treatment of chromium ores

Publications (1)

Publication Number Publication Date
GB603973A true GB603973A (en) 1948-06-25

Family

ID=10317405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3106345A Expired GB603973A (en) 1945-11-19 1945-11-19 Improvements relating to the treatment of chromium ores

Country Status (1)

Country Link
GB (1) GB603973A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117286337A (en) * 2023-09-18 2023-12-26 河北北方铸业有限公司 Method for recovering chromium from chromite sand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117286337A (en) * 2023-09-18 2023-12-26 河北北方铸业有限公司 Method for recovering chromium from chromite sand

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