GB336970A - Improvements in or relating to the working up of chromium ores - Google Patents

Improvements in or relating to the working up of chromium ores

Info

Publication number
GB336970A
GB336970A GB2248829A GB2248829A GB336970A GB 336970 A GB336970 A GB 336970A GB 2248829 A GB2248829 A GB 2248829A GB 2248829 A GB2248829 A GB 2248829A GB 336970 A GB336970 A GB 336970A
Authority
GB
United Kingdom
Prior art keywords
relating
working
chromium ores
ores
chromium
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
GB2248829A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB2248829A priority Critical patent/GB336970A/en
Publication of GB336970A publication Critical patent/GB336970A/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
    • C22B34/00—Obtaining refractory metals
    • C22B34/30—Obtaining chromium, molybdenum or tungsten
    • C22B34/32—Obtaining chromium

Abstract

336,970. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). July 22, 1929. Roasting.-Chromium ores which are to be worked up, for example with alkali carbonate in the presence of lime, dolomite, or bauxite, are subjected to a preliminary treatment consisting in heating in an oxidizing atmosphere to over 800‹C, with or without the addition of a small amount of an oxidizing material such as sodium or potassium nitrate.
GB2248829A 1929-07-22 1929-07-22 Improvements in or relating to the working up of chromium ores Expired GB336970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2248829A GB336970A (en) 1929-07-22 1929-07-22 Improvements in or relating to the working up of chromium ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2248829A GB336970A (en) 1929-07-22 1929-07-22 Improvements in or relating to the working up of chromium ores

Publications (1)

Publication Number Publication Date
GB336970A true GB336970A (en) 1930-10-22

Family

ID=10180209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2248829A Expired GB336970A (en) 1929-07-22 1929-07-22 Improvements in or relating to the working up of chromium ores

Country Status (1)

Country Link
GB (1) GB336970A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144868A2 (en) * 1983-12-06 1985-06-19 Th. Goldschmidt AG Process for manufacturing fine metallic chromium powder with a low oxygen content

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0144868A2 (en) * 1983-12-06 1985-06-19 Th. Goldschmidt AG Process for manufacturing fine metallic chromium powder with a low oxygen content
EP0144868A3 (en) * 1983-12-06 1987-09-16 Th. Goldschmidt Ag Process for manufacturing fine metallic chromium powder with a low oxygen content

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