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FI61855C - Foerfarande foer framstaellning av en jaernfri krom(iii)foerening - Google Patents

Foerfarande foer framstaellning av en jaernfri krom(iii)foerening Download PDF

Info

Publication number
FI61855C
FI61855C FI802445A FI802445A FI61855C FI 61855 C FI61855 C FI 61855C FI 802445 A FI802445 A FI 802445A FI 802445 A FI802445 A FI 802445A FI 61855 C FI61855 C FI 61855C
Authority
FI
Finland
Prior art keywords
chromium
precipitation
iron
solution
process according
Prior art date
Application number
FI802445A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI802445A (fi
FI61855B (fi
Inventor
Seppo Olavi Heimala
Stig Erik Hultholm
Frans Heikki Tuovinen
Original Assignee
Outokumpu Oy
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 Oy filed Critical Outokumpu Oy
Priority to FI802445A priority Critical patent/FI61855C/fi
Priority to DE19813126681 priority patent/DE3126681A1/de
Priority to FR8113873A priority patent/FR2493297B1/fr
Priority to US06/286,038 priority patent/US4393029A/en
Priority to NO812598A priority patent/NO155960C/no
Priority to SE8104607A priority patent/SE453490B/sv
Priority to GB8123484A priority patent/GB2081696B/en
Priority to JP56121979A priority patent/JPS57118030A/ja
Publication of FI802445A publication Critical patent/FI802445A/fi
Application granted granted Critical
Publication of FI61855B publication Critical patent/FI61855B/fi
Publication of FI61855C publication Critical patent/FI61855C/fi

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G37/00Compounds of chromium
    • C01G37/02Oxides or hydrates thereof
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01PINDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00Physical properties of inorganic compounds
    • C01P2006/80Compositional 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)
FI802445A 1980-08-05 1980-08-05 Foerfarande foer framstaellning av en jaernfri krom(iii)foerening FI61855C (fi)

Priority Applications (8)

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
DE19813126681 DE3126681A1 (de) 1980-08-05 1981-07-07 Verfahren zur gewinnung eisenfreier chrom(iii)verbindung
FR8113873A FR2493297B1 (fr) 1980-08-05 1981-07-16 Procede pour la production d'un compose de chrome iii exempt de fer
US06/286,038 US4393029A (en) 1980-08-05 1981-07-22 Process for the production of an iron-free chronium (III) compound
NO812598A NO155960C (no) 1980-08-05 1981-07-29 Fremgangsmaate for fremstilling av jernfri crooh.
SE8104607A SE453490B (sv) 1980-08-05 1981-07-30 Forfarande for framstellning av en jernfri krom(iii)forening ur en sur vattenlosning innehallande jern och krom
GB8123484A GB2081696B (en) 1980-08-05 1981-07-31 Process for the production of an iron-free chromium (iii) compound
JP56121979A JPS57118030A (en) 1980-08-05 1981-08-05 Sedimentation of iron-free chromium(iii) compound

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI802445 1980-08-05
FI802445A FI61855C (fi) 1980-08-05 1980-08-05 Foerfarande foer framstaellning av en jaernfri krom(iii)foerening

Publications (3)

Publication Number Publication Date
FI802445A FI802445A (fi) 1982-02-06
FI61855B FI61855B (fi) 1982-06-30
FI61855C true FI61855C (fi) 1982-10-11

Family

ID=8513669

Family Applications (1)

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

Country Status (8)

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

Families Citing this family (6)

* 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 (de) * 1989-12-16 1993-12-01 Bayer Ag Verfahren zur Herstellung von Chromsäure
EP0433750B1 (de) * 1989-12-16 1993-12-01 Bayer Ag Verfahren zur Herstellung von Chromsäure
AU2003227163A1 (en) * 2003-03-19 2004-10-11 Institute Of Process Engineering Chinese Academy Of Sciences Method for production of alkali metal chromates
CN115928108B (zh) * 2022-12-23 2023-08-01 中国科学院青海盐湖研究所 电化学氧化铬铁直接制备三价铬化合物的方法
CN115976535B (zh) * 2022-12-23 2023-08-18 中国科学院青海盐湖研究所 酸性体系中铬铁电化学氧化制备三价铬盐的方法及装置

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 (no) * 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
NO812598L (no) 1982-02-08
JPS57118030A (en) 1982-07-22
GB2081696B (en) 1984-06-27
GB2081696A (en) 1982-02-24
FR2493297B1 (fr) 1985-11-22
NO155960B (no) 1987-03-23
SE453490B (sv) 1988-02-08
US4393029A (en) 1983-07-12
SE8104607L (sv) 1982-02-06
FR2493297A1 (fr) 1982-05-07
DE3126681A1 (de) 1982-03-18
NO155960C (no) 1987-07-01
JPH0116777B2 (no) 1989-03-27
FI802445A (fi) 1982-02-06
FI61855B (fi) 1982-06-30

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MM Patent lapsed

Owner name: OUTOKUMPU OY