ZA883040B - Method for precipitation of chromium and/or vanadium from waste sulphuric acid from the titanium dioxide production - Google Patents

Method for precipitation of chromium and/or vanadium from waste sulphuric acid from the titanium dioxide production

Info

Publication number
ZA883040B
ZA883040B ZA883040A ZA883040A ZA883040B ZA 883040 B ZA883040 B ZA 883040B ZA 883040 A ZA883040 A ZA 883040A ZA 883040 A ZA883040 A ZA 883040A ZA 883040 B ZA883040 B ZA 883040B
Authority
ZA
South Africa
Prior art keywords
vanadium
chromium
precipitation
titanium dioxide
sulphuric acid
Prior art date
Application number
ZA883040A
Inventor
Hans Wiesmann
Wiesmann Hans
Parmanand Bansal
Bansal Parmanand
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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4215394&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA883040(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Escher Wyss Ag filed Critical Escher Wyss Ag
Publication of ZA883040B publication Critical patent/ZA883040B/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
    • C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
    • 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

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)
ZA883040A 1987-04-30 1988-04-28 Method for precipitation of chromium and/or vanadium from waste sulphuric acid from the titanium dioxide production ZA883040B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1649/87A CH669184A5 (en) 1987-04-30 1987-04-30 METHOD FOR SEPARATING IMPURITIES, ESPECIALLY CHROME, FROM WASTE SULFURIC ACID.

Publications (1)

Publication Number Publication Date
ZA883040B true ZA883040B (en) 1989-01-25

Family

ID=4215394

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA883040A ZA883040B (en) 1987-04-30 1988-04-28 Method for precipitation of chromium and/or vanadium from waste sulphuric acid from the titanium dioxide production

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

Also Published As

Publication number Publication date
SU1736332A3 (en) 1992-05-23
FI86626B (en) 1992-06-15
EP0313592B1 (en) 1991-02-27
KR940006033B1 (en) 1994-07-02
EP0313592A1 (en) 1989-05-03
DE3861843D1 (en) 1991-04-04
ES2007220A6 (en) 1989-06-01
FI86626C (en) 1992-09-25
DE3730950A1 (en) 1988-11-10
FI885674A0 (en) 1988-12-07
CH669184A5 (en) 1989-02-28
WO1988008405A1 (en) 1988-11-03
AU596001B2 (en) 1990-04-12
CA1329005C (en) 1994-05-03
AU1597788A (en) 1988-12-02
JPH01503230A (en) 1989-11-02
KR890700539A (en) 1989-04-25
JPH0512286B2 (en) 1993-02-17
FI885674A (en) 1988-12-07

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