GB204886A - Process for the production of chromium oxide from chrome iron ore - Google Patents

Process for the production of chromium oxide from chrome iron ore

Info

Publication number
GB204886A
GB204886A GB2572022A GB2572022A GB204886A GB 204886 A GB204886 A GB 204886A GB 2572022 A GB2572022 A GB 2572022A GB 2572022 A GB2572022 A GB 2572022A GB 204886 A GB204886 A GB 204886A
Authority
GB
United Kingdom
Prior art keywords
chromium
production
iron ore
chromium oxide
ferrochromium
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
GB2572022A
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.)
GRIESHEIM ELEKTRON CHEM FAB
Chemische Fabrik Griesheim Elektron
Original Assignee
GRIESHEIM ELEKTRON CHEM FAB
Chemische Fabrik Griesheim Elektron
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 GRIESHEIM ELEKTRON CHEM FAB, Chemische Fabrik Griesheim Elektron filed Critical GRIESHEIM ELEKTRON CHEM FAB
Priority to GB2572022A priority Critical patent/GB204886A/en
Publication of GB204886A publication Critical patent/GB204886A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00—Compounds of chromium
    • C01G37/02—Oxides or hydrates thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Chromeiron ore is converted into ferrochromium in the known manner, the ferrochromium is dissolved in hydrochloric acid, and the chromium precipitated as hydrated oxide by calcium or barium carbonate. The precipitate is separated and used to produce alkali chromate or chromium salts. The filtrate, if barium carbonate was used, is evaporated and cooled to separate barium chloride and the mother-liquor may be evaporated to obtain ferrous chloride. In the precipitation of the chromium hydrate it is preferred to use granular limestone or witherite and hot chloride solution.
GB2572022A 1922-09-22 1922-09-22 Process for the production of chromium oxide from chrome iron ore Expired GB204886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2572022A GB204886A (en) 1922-09-22 1922-09-22 Process for the production of chromium oxide from chrome iron ore

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2572022A GB204886A (en) 1922-09-22 1922-09-22 Process for the production of chromium oxide from chrome iron ore

Publications (1)

Publication Number Publication Date
GB204886A true GB204886A (en) 1923-10-11

Family

ID=10232185

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2572022A Expired GB204886A (en) 1922-09-22 1922-09-22 Process for the production of chromium oxide from chrome iron ore

Country Status (1)

Country Link
GB (1) GB204886A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4393029A (en) * 1980-08-05 1983-07-12 Outokumpu Oy Process for the production of an iron-free chronium (III) compound

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4393029A (en) * 1980-08-05 1983-07-12 Outokumpu Oy Process for the production of an iron-free chronium (III) compound

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