FI885674A0 - FOERFARANDE FOER AVSKILJNING AV KROM OCH / ELLER VANADIN UR AVFALLSSVAVELSYRA. - Google Patents

FOERFARANDE FOER AVSKILJNING AV KROM OCH / ELLER VANADIN UR AVFALLSSVAVELSYRA.

Info

Publication number: FI885674A0
Authority: FI; Finland
Prior art keywords: avfallssvavelsyra; vanadin; krom; eller; och
Prior art date: 1987-04-30

Application number

FI885674A

Other languages

Finnish (fi)

Other versions

FI86626B (en

FI86626C (en

FI885674A (en

Inventor

Hans Wiesmann

Parmanand Bansal

Original Assignee

Escher Wyss 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.)

1987-04-30

Filing date

1988-12-07

Publication date

1988-12-07

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4215394&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI885674(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1988-12-07 Application filed by Escher Wyss Ag filed Critical Escher Wyss Ag

1988-12-07 Publication of FI885674A0 publication Critical patent/FI885674A0/en

1988-12-07 Publication of FI885674A publication Critical patent/FI885674A/en

1992-06-15 Publication of FI86626B publication Critical patent/FI86626B/en

1992-09-25 Application granted granted Critical

1992-09-25 Publication of FI86626C publication Critical patent/FI86626C/en

Links

Classifications

- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/69—Sulfur trioxide; Sulfuric acid
- C01B17/90—Separation; Purification
- C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Manufacture And Refinement Of Metals (AREA)
Processing Of Solid Wastes (AREA)
Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

FI885674A 1987-04-30 1988-12-07 FOERFARANDE FOER AVSKILJNING AV KROM OCH / ELLER VANADIN UR AVFALLSSVAVELSYRA. FI86626C (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
CH164987		1987-04-30
CH1649/87A CH669184A5 (en)	1987-04-30	1987-04-30	METHOD FOR SEPARATING IMPURITIES, ESPECIALLY CHROME, FROM WASTE SULFURIC ACID.
CH8800081		1988-04-26
PCT/CH1988/000081 WO1988008405A1 (en)	1987-04-30	1988-04-26	Process for precipitating chromium and/or vanadium from sulphuric acid waste

Publications (4)

Publication Number	Publication Date
FI885674A0 true FI885674A0 (en)	1988-12-07
FI885674A FI885674A (en)	1988-12-07
FI86626B FI86626B (en)	1992-06-15
FI86626C FI86626C (en)	1992-09-25

Family

ID=4215394

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI885674A FI86626C (en)	1987-04-30	1988-12-07	FOERFARANDE FOER AVSKILJNING AV KROM OCH / ELLER VANADIN UR AVFALLSSVAVELSYRA.

Country Status (12)

Country	Link
EP (1)	EP0313592B1 (en)
JP (1)	JPH01503230A (en)
KR (1)	KR940006033B1 (en)
AU (1)	AU596001B2 (en)
CA (1)	CA1329005C (en)
CH (1)	CH669184A5 (en)
DE (2)	DE3730950A1 (en)
ES (1)	ES2007220A6 (en)
FI (1)	FI86626C (en)
SU (1)	SU1736332A3 (en)
WO (1)	WO1988008405A1 (en)
ZA (1)	ZA883040B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN101812593B (en) *	2010-04-22	2011-06-22	攀钢集团钢铁钒钛股份有限公司	Method for depositing vanadium wastewater by utilizing vanadium-extraction tailings and acid ammonium salt
CN106186064B (en) *	2016-07-26	2017-10-31	大连博融新材料股份有限公司	A kind of method that depth produces high-purity ammonium metavanadate except chromium
RU2651019C2 (en) *	2016-09-19	2018-04-18	Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина"	Method for processing liquid wastes of titanium dioxide production

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE578034C (en) *	1931-06-28	1933-06-08	Dr Paul Weinstock	Purification of sulfuric acid containing metallic impurities
DE591056C (en) *	1932-08-23	1934-01-16	Paul Weinstock Dr	Process for purifying sulfuric acid
DE1119835B (en) *	1958-04-02	1961-12-21	Willy Carl Ferdinand Buesching	Process and device for the continuous processing of sulphate-containing dilute waste sulfuric acids by means of evaporation
NL258598A (en) *	1959-12-03
LU39457A1 (en) *	1960-08-24	1961-01-25
US3575853A (en) *	1968-12-24	1971-04-20	Lab Betz Inc	Waste water treatment
DE2446117B2 (en) *	1974-09-27	1979-04-26	Freie Und Hansestadt Hamburg Behoerde Fuer Wirtschaft Und Verkehr, 2000 Hamburg	Device for the separation of complex-bound transition metals from industrial wastewater
DE2729756A1 (en) *	1977-07-01	1979-01-11	Kronos Titan Gmbh	CONCN. AND PURIFICN. OF SULPHURIC ACID FROM TITANIUM DI:OXIDE MFR. - by boiling in presence of ferrous sulphate to remove chromium

1987
- 1987-04-30 CH CH1649/87A patent/CH669184A5/en not_active IP Right Cessation
- 1987-09-15 DE DE19873730950 patent/DE3730950A1/en not_active Ceased
1988
- 1988-04-26 DE DE8888903163T patent/DE3861843D1/en not_active Expired - Fee Related
- 1988-04-26 AU AU15977/88A patent/AU596001B2/en not_active Ceased
- 1988-04-26 JP JP63503297A patent/JPH01503230A/en active Granted
- 1988-04-26 EP EP88903163A patent/EP0313592B1/en not_active Expired - Lifetime
- 1988-04-26 KR KR1019880701653A patent/KR940006033B1/en not_active IP Right Cessation
- 1988-04-26 WO PCT/CH1988/000081 patent/WO1988008405A1/en active IP Right Grant
- 1988-04-28 CA CA000565304A patent/CA1329005C/en not_active Expired - Fee Related
- 1988-04-28 ZA ZA883040A patent/ZA883040B/en unknown
- 1988-04-29 ES ES8801332A patent/ES2007220A6/en not_active Expired
- 1988-12-07 FI FI885674A patent/FI86626C/en not_active IP Right Cessation
- 1988-12-28 SU SU884613175A patent/SU1736332A3/en active

Also Published As

Publication number	Publication date
KR890700539A (en)	1989-04-25
FI86626B (en)	1992-06-15
AU1597788A (en)	1988-12-02
ES2007220A6 (en)	1989-06-01
SU1736332A3 (en)	1992-05-23
CA1329005C (en)	1994-05-03
DE3730950A1 (en)	1988-11-10
EP0313592A1 (en)	1989-05-03
FI86626C (en)	1992-09-25
ZA883040B (en)	1989-01-25
JPH01503230A (en)	1989-11-02
WO1988008405A1 (en)	1988-11-03
AU596001B2 (en)	1990-04-12
FI885674A (en)	1988-12-07
CH669184A5 (en)	1989-02-28
EP0313592B1 (en)	1991-02-27
KR940006033B1 (en)	1994-07-02
JPH0512286B2 (en)	1993-02-17
DE3861843D1 (en)	1991-04-04

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FI872443A0 (en)	1987-06-01	FOERFARANDE OCH APPARATUR FOER GENOMFOERANDE AV EN VAERMEKRAFTSPROCESS.
FI872445A0 (en)	1987-06-01	FOERFARANDE OCH APPARATUR FOER GENOMFOERANDE AV EN VAERMEKRAFTSPROCESS.

Legal Events

Date	Code	Title	Description
2004-08-31	MM	Patent lapsed	Owner name: SULZER-ESCHER WYSS AG