FR2493297B1 - Procede pour la production d'un compose de chrome iii exempt de fer - Google Patents

Procede pour la production d'un compose de chrome iii exempt de fer

Info

Publication number
FR2493297B1
FR2493297B1 FR8113873A FR8113873A FR2493297B1 FR 2493297 B1 FR2493297 B1 FR 2493297B1 FR 8113873 A FR8113873 A FR 8113873A FR 8113873 A FR8113873 A FR 8113873A FR 2493297 B1 FR2493297 B1 FR 2493297B1
Authority
FR
France
Prior art keywords
production
iii compound
iron free
free chrome
chrome iii
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
FR8113873A
Other languages
English (en)
Other versions
FR2493297A1 (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.)
Outokumpu Oyj
Original Assignee
Outokumpu Oyj
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 Outokumpu Oyj filed Critical Outokumpu Oyj
Publication of FR2493297A1 publication Critical patent/FR2493297A1/fr
Application granted granted Critical
Publication of FR2493297B1 publication Critical patent/FR2493297B1/fr
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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Iron (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture Of Iron (AREA)
  • Catalysts (AREA)
FR8113873A 1980-08-05 1981-07-16 Procede pour la production d'un compose de chrome iii exempt de fer Expired FR2493297B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI802445A FI61855C (fi) 1980-08-05 1980-08-05 Foerfarande foer framstaellning av en jaernfri krom(iii)foerening

Publications (2)

Publication Number Publication Date
FR2493297A1 FR2493297A1 (fr) 1982-05-07
FR2493297B1 true FR2493297B1 (fr) 1985-11-22

Family

ID=8513669

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8113873A Expired FR2493297B1 (fr) 1980-08-05 1981-07-16 Procede pour la production d'un compose de chrome iii exempt de fer

Country Status (8)

Country Link
US (1) US4393029A (fr)
JP (1) JPS57118030A (fr)
DE (1) DE3126681A1 (fr)
FI (1) FI61855C (fr)
FR (1) FR2493297B1 (fr)
GB (1) GB2081696B (fr)
NO (1) NO155960C (fr)
SE (1) SE453490B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118559B (en) * 1982-02-02 1985-07-31 Giuliano Guardini Process for extracting protein and chromium from chrome tanned hide wastes
EP0433748B1 (fr) * 1989-12-16 1993-12-01 Bayer Ag Procédé de préparation d'acide chromique
EP0433750B1 (fr) * 1989-12-16 1993-12-01 Bayer Ag Procédé de préparation d'acide chromique
AU2003227163A1 (en) * 2003-03-19 2004-10-11 Institute Of Process Engineering Chinese Academy Of Sciences Method for production of alkali metal chromates

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB204886A (en) * 1922-09-22 1923-10-11 Griesheim Elektron Chem Fab Process for the production of chromium oxide from chrome iron ore
CH181527A (de) * 1934-08-14 1935-12-31 Wydler Ernst Verfahren zur Gewinnung von reinem Chromihydroxyd aus unreinen Chromisulfatlösungen.
JPS4717697U (fr) * 1971-03-30 1972-10-30
US3896209A (en) * 1973-01-22 1975-07-22 Du Pont Reduction of hexavalent chromium
US3961029A (en) * 1973-05-21 1976-06-01 Tokico Ltd. Process for recovering chromic acid solution from a waste liquor containing chromic ions
US4108596A (en) * 1975-07-11 1978-08-22 Revere Copper And Brass, Incorporated Recovery of chromium values from waste streams by the use of alkaline magnesium compounds
DE2710175C2 (de) * 1977-03-09 1986-08-28 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Chromgerbstoff und Glaubersalz
US4086150A (en) * 1977-06-27 1978-04-25 Huron Chemicals Limited Chromate removal by precipitation
FI60381C (fi) * 1979-02-06 1982-01-11 Outokumpu Oy Foerfarande foer framstaellning av en jaernfri krom(iii)foerening
US4207295A (en) * 1979-02-13 1980-06-10 Union Carbide Corporation Processing of chromium ore
US4259297A (en) * 1979-09-04 1981-03-31 Olin Corporation Chromate removal from concentrated chlorate solution by chemical precipitation

Also Published As

Publication number Publication date
GB2081696B (en) 1984-06-27
NO155960B (no) 1987-03-23
JPS57118030A (en) 1982-07-22
SE453490B (sv) 1988-02-08
NO812598L (no) 1982-02-08
FI802445A (fi) 1982-02-06
SE8104607L (sv) 1982-02-06
NO155960C (no) 1987-07-01
JPH0116777B2 (fr) 1989-03-27
FR2493297A1 (fr) 1982-05-07
DE3126681A1 (de) 1982-03-18
GB2081696A (en) 1982-02-24
FI61855B (fi) 1982-06-30
US4393029A (en) 1983-07-12
FI61855C (fi) 1982-10-11

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Legal Events

Date Code Title Description
ST Notification of lapse