FI802445A7 - Foerfarande foer framstaellning av en jaernfri krom(iii)foerening - Google Patents

Foerfarande foer framstaellning av en jaernfri krom(iii)foerening

Info

Publication number: FI802445A7
Authority: FI; Finland
Prior art keywords: jaernfri; foerening; krom; iii; foerfarande foer
Prior art date: 1980-08-05

Application number

FI802445A

Other languages

English (en)

Other versions

FI61855C (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.)

1980-08-05

Filing date

1980-08-05

Publication date

1982-02-06

1980-08-05 Application filed by Outokumpu Oy filed Critical Outokumpu Oy

1980-08-05 Priority to FI802445A priority Critical patent/FI61855C/fi

1981-07-07 Priority to DE19813126681 priority patent/DE3126681A1/de

1981-07-16 Priority to FR8113873A priority patent/FR2493297B1/fr

1981-07-22 Priority to US06/286,038 priority patent/US4393029A/en

1981-07-29 Priority to NO812598A priority patent/NO155960C/no

1981-07-30 Priority to SE8104607A priority patent/SE453490B/sv

1981-07-31 Priority to GB8123484A priority patent/GB2081696B/en

1981-08-05 Priority to JP56121979A priority patent/JPS57118030A/ja

1982-02-06 Publication of FI802445A7 publication Critical patent/FI802445A7/fi

1982-06-30 Application granted granted Critical

1982-06-30 Publication of FI61855B publication Critical patent/FI61855B/fi

1982-10-11 Publication of FI61855C publication Critical patent/FI61855C/fi

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)

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
FI802445A FI61855C (fi)	1980-08-05	1980-08-05	Foerfarande foer framstaellning av en jaernfri krom(iii)foerening
FI802445		1980-08-05

Publications (3)

Publication Number	Publication Date
FI802445A7 true FI802445A7 (fi)	1982-02-06
FI61855B FI61855B (fi)	1982-06-30
FI61855C 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 (fi)
JP (1)	JPS57118030A (fi)
DE (1)	DE3126681A1 (fi)
FI (1)	FI61855C (fi)
FR (1)	FR2493297B1 (fi)
GB (1)	GB2081696B (fi)
NO (1)	NO155960C (fi)
SE (1)	SE453490B (fi)

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
DE59003699D1 (de) *	1989-12-16	1994-01-13	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 (fi) *	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

1980
- 1980-08-05 FI FI802445A patent/FI61855C/fi not_active IP Right Cessation
1981
- 1981-07-07 DE DE19813126681 patent/DE3126681A1/de not_active Ceased
- 1981-07-16 FR FR8113873A patent/FR2493297B1/fr not_active Expired
- 1981-07-22 US US06/286,038 patent/US4393029A/en not_active Expired - Fee Related
- 1981-07-29 NO NO812598A patent/NO155960C/no unknown
- 1981-07-30 SE SE8104607A patent/SE453490B/sv not_active IP Right Cessation
- 1981-07-31 GB GB8123484A patent/GB2081696B/en not_active Expired
- 1981-08-05 JP JP56121979A patent/JPS57118030A/ja active Granted

Also Published As

Publication number	Publication date
NO155960B (no)	1987-03-23
SE8104607L (sv)	1982-02-06
FI61855C (fi)	1982-10-11
DE3126681A1 (de)	1982-03-18
GB2081696A (en)	1982-02-24
FI61855B (fi)	1982-06-30
NO812598L (no)	1982-02-08
FR2493297A1 (fr)	1982-05-07
SE453490B (sv)	1988-02-08
US4393029A (en)	1983-07-12
NO155960C (no)	1987-07-01
GB2081696B (en)	1984-06-27
JPH0116777B2 (fi)	1989-03-27
JPS57118030A (en)	1982-07-22
FR2493297B1 (fr)	1985-11-22

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Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: OUTOKUMPU OY