FR2324580A1 - Procede perfectionne pour l'attaque alcaline de chromites - Google Patents

Procede perfectionne pour l'attaque alcaline de chromites

Info

Publication number
FR2324580A1
FR2324580A1 FR7628216A FR7628216A FR2324580A1 FR 2324580 A1 FR2324580 A1 FR 2324580A1 FR 7628216 A FR7628216 A FR 7628216A FR 7628216 A FR7628216 A FR 7628216A FR 2324580 A1 FR2324580 A1 FR 2324580A1
Authority
FR
France
Prior art keywords
chromites
perfected process
alkaline attack
attack
alkaline
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.)
Granted
Application number
FR7628216A
Other languages
English (en)
Other versions
FR2324580B1 (fr
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of FR2324580A1 publication Critical patent/FR2324580A1/fr
Application granted granted Critical
Publication of FR2324580B1 publication Critical patent/FR2324580B1/fr
Granted 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
    • 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)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Processing Of Solid Wastes (AREA)
FR7628216A 1975-09-20 1976-09-20 Procede perfectionne pour l'attaque alcaline de chromites Granted FR2324580A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2542054A DE2542054C2 (de) 1975-09-20 1975-09-20 Verfahren zum Aufschluß von Chromerzen

Publications (2)

Publication Number Publication Date
FR2324580A1 true FR2324580A1 (fr) 1977-04-15
FR2324580B1 FR2324580B1 (fr) 1980-06-06

Family

ID=5957020

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7628216A Granted FR2324580A1 (fr) 1975-09-20 1976-09-20 Procede perfectionne pour l'attaque alcaline de chromites

Country Status (8)

Country Link
US (1) US4066734A (fr)
JP (1) JPS5239600A (fr)
BR (1) BR7606212A (fr)
DE (1) DE2542054C2 (fr)
FR (1) FR2324580A1 (fr)
GB (1) GB1548449A (fr)
IT (1) IT1066194B (fr)
MX (1) MX143733A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2335608A1 (fr) * 1975-12-19 1977-07-15 Bayer Ag Procede perfectionne pour l'attaque de minerais de chrome riches en silice
FR2480308A1 (fr) * 1980-04-15 1981-10-16 Cabot Corp Procede de recuperation de metaux refractaires

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4162295A (en) * 1977-11-14 1979-07-24 Allied Chemical Corporation Method for production of alkali metal chromates from chrome ores
US4207295A (en) * 1979-02-13 1980-06-10 Union Carbide Corporation Processing of chromium ore
DE2935718C2 (de) * 1979-09-04 1982-08-12 Bayer Ag, 5090 Leverkusen Verfahren zum oxidativen Aufschluß von chromhaltigen Erzen
DE4236202C2 (de) * 1992-10-27 1994-07-21 Bayer Ag Verfahren zur rückstandsarmen und hochauszehrenden Erzeugung von Natriumdichromat
AU2003227163A1 (en) * 2003-03-19 2004-10-11 Institute Of Process Engineering Chinese Academy Of Sciences Method for production of alkali metal chromates
CN101817561B (zh) * 2010-04-12 2012-05-30 湖北振华化学股份有限公司 一种铬铁矿加压浸出清洁生产铬酸钠的方法
CN104341004A (zh) * 2013-07-25 2015-02-11 中国科学院过程工程研究所 一种铬铁矿加压浸出制备铬酸钾的新工艺
CN103614566B (zh) * 2013-12-13 2014-12-10 重庆大学 一种从转炉钒铬渣中提取钒和铬的方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR692614A (fr) * 1929-04-03 1930-11-07 Mutual Chemical Company Of Ame Procédé de fabrication des chromates

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US442109A (en) * 1890-12-09 Ander - donald
US1752863A (en) * 1929-04-03 1930-04-01 Mutual Chemical Company Manufacture of chromates
US1901939A (en) * 1930-07-03 1933-03-21 Natural Products Refining Co Process of producing chromates
US2381236A (en) * 1940-08-08 1945-08-07 Marvin J Udy Chromium recovery
DE804479C (de) * 1948-10-02 1951-04-23 Dr Gerhard Holder Verfahren zum Aufschliessen von Chromerzen
GB1186439A (en) * 1966-07-12 1970-04-02 Bayer Ag Alkali Treatment of Chromium Ores
US3812234A (en) * 1969-05-24 1974-05-21 Bayer Ag Process for the production of alkalichromate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR692614A (fr) * 1929-04-03 1930-11-07 Mutual Chemical Company Of Ame Procédé de fabrication des chromates

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CA1967 *
CA1970 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2335608A1 (fr) * 1975-12-19 1977-07-15 Bayer Ag Procede perfectionne pour l'attaque de minerais de chrome riches en silice
FR2480308A1 (fr) * 1980-04-15 1981-10-16 Cabot Corp Procede de recuperation de metaux refractaires

Also Published As

Publication number Publication date
IT1066194B (it) 1985-03-04
JPS5731535B2 (fr) 1982-07-05
JPS5239600A (en) 1977-03-26
DE2542054C2 (de) 1982-02-25
BR7606212A (pt) 1977-06-21
GB1548449A (en) 1979-07-18
US4066734A (en) 1978-01-03
DE2542054A1 (de) 1977-03-31
MX143733A (es) 1981-07-02
FR2324580B1 (fr) 1980-06-06

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Legal Events

Date Code Title Description
ST Notification of lapse