GB558986A - Improvements in production of chromium compounds - Google Patents

Improvements in production of chromium compounds

Info

Publication number
GB558986A
GB558986A GB800942A GB800942A GB558986A GB 558986 A GB558986 A GB 558986A GB 800942 A GB800942 A GB 800942A GB 800942 A GB800942 A GB 800942A GB 558986 A GB558986 A GB 558986A
Authority
GB
United Kingdom
Prior art keywords
calcium
bichromate
chromium compounds
chromite
alkali metal
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
GB800942A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB800942A priority Critical patent/GB558986A/en
Publication of GB558986A publication Critical patent/GB558986A/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
    • C01G37/14—Chromates; Bichromates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

558,986. Chromium compounds. UDY, M. J. June 11, 1942. No. 8009. [Class 1 (iii)] An alkali metal chromate or bichromate, obtained by oxidizing chromite ore in presence of alkali is heated with carbon, with or without an addition of calcium oxide, to reduce the chromium to the trivalent state. The product is extracted with water, and from the solution is recovered alkali metal hydroxide or carbonate which is used for the treatment of further quantities of chromite ore. The solid residue consists of chromic oxide or calcium chromite, which may be oxidized again to produce calcium chromate or bichromate.
GB800942A 1942-06-11 1942-06-11 Improvements in production of chromium compounds Expired GB558986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB800942A GB558986A (en) 1942-06-11 1942-06-11 Improvements in production of chromium compounds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB800942A GB558986A (en) 1942-06-11 1942-06-11 Improvements in production of chromium compounds

Publications (1)

Publication Number Publication Date
GB558986A true GB558986A (en) 1944-01-31

Family

ID=9844025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB800942A Expired GB558986A (en) 1942-06-11 1942-06-11 Improvements in production of chromium compounds

Country Status (1)

Country Link
GB (1) GB558986A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438724A (en) * 1964-03-12 1969-04-15 Allied Chem Manufacture of chromium spinels

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438724A (en) * 1964-03-12 1969-04-15 Allied Chem Manufacture of chromium spinels

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