GB507362A - Improvements in and relating to the treatment of chromium ores - Google Patents

Improvements in and relating to the treatment of chromium ores

Info

Publication number
GB507362A
GB507362A GB958038A GB958038A GB507362A GB 507362 A GB507362 A GB 507362A GB 958038 A GB958038 A GB 958038A GB 958038 A GB958038 A GB 958038A GB 507362 A GB507362 A GB 507362A
Authority
GB
United Kingdom
Prior art keywords
weight
parts
alkali
mixture
mixed
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
GB958038A
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.)
WALTER HENE
Original Assignee
WALTER HENE
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 WALTER HENE filed Critical WALTER HENE
Priority to GB958038A priority Critical patent/GB507362A/en
Publication of GB507362A publication Critical patent/GB507362A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

507,362. Alkali chromates. HENE, W. March 29, 1938, No. 9580. [Class 1 (iii)] In the production of alkali chromates, 100 parts by weight of pulverized chrome ore is mixed with 10-20 parts by weight of a powdered loosening material such as calcium or magnesium oxide, or residues from a previous operation, and with not more than 75 parts by weight of caustic soda &c. an equivalent quantity of other caustic alkali, and the mixture is heated to 550-750‹ C. under oxidizing conditions. The mixture may be passed continuously through the furnace in a layer on plates. The caustic alkali may be mixed with the other materials in the form of a hot concentrated lye.
GB958038A 1938-03-29 1938-03-29 Improvements in and relating to the treatment of chromium ores Expired GB507362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB958038A GB507362A (en) 1938-03-29 1938-03-29 Improvements in and relating to the treatment of chromium ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB958038A GB507362A (en) 1938-03-29 1938-03-29 Improvements in and relating to the treatment of chromium ores

Publications (1)

Publication Number Publication Date
GB507362A true GB507362A (en) 1939-06-14

Family

ID=9874739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB958038A Expired GB507362A (en) 1938-03-29 1938-03-29 Improvements in and relating to the treatment of chromium ores

Country Status (1)

Country Link
GB (1) GB507362A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355006A (en) * 1979-09-04 1982-10-19 Bayer Aktiengesellschaft Process for the oxidative dissociation of chrome-containing ores
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4355006A (en) * 1979-09-04 1982-10-19 Bayer Aktiengesellschaft Process for the oxidative dissociation of chrome-containing ores
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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