EP0356805A3 - Process for the production of alkali dichromates and chromic acid - Google Patents

Process for the production of alkali dichromates and chromic acid Download PDF

Info

Publication number
EP0356805A3
EP0356805A3 EP89115033A EP89115033A EP0356805A3 EP 0356805 A3 EP0356805 A3 EP 0356805A3 EP 89115033 A EP89115033 A EP 89115033A EP 89115033 A EP89115033 A EP 89115033A EP 0356805 A3 EP0356805 A3 EP 0356805A3
Authority
EP
European Patent Office
Prior art keywords
production
chromic acid
alkali dichromates
dichromates
alkali
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.)
Granted
Application number
EP89115033A
Other languages
German (de)
Other versions
EP0356805A2 (en
EP0356805B1 (en
Inventor
Helmut Dr. Klotz
Hans Dieter Pinter
Rainer Dr. Weber
Hans-Dieter Dr. Block
Norbert Dr. Lonhoff
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.)
Bayer AG
Original Assignee
Bayer 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
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0356805A2 publication Critical patent/EP0356805A2/en
Publication of EP0356805A3 publication Critical patent/EP0356805A3/en
Application granted granted Critical
Publication of EP0356805B1 publication Critical patent/EP0356805B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/22—Inorganic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
EP89115033A 1988-08-27 1989-08-15 Process for the production of alkali dichromates and chromic acid Expired - Lifetime EP0356805B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3829123A DE3829123A1 (en) 1988-08-27 1988-08-27 PROCESS FOR PREPARING ALKALIDICHROMATE AND CHROMIUM ACID
DE3829123 1988-08-27

Publications (3)

Publication Number Publication Date
EP0356805A2 EP0356805A2 (en) 1990-03-07
EP0356805A3 true EP0356805A3 (en) 1990-04-18
EP0356805B1 EP0356805B1 (en) 1992-05-20

Family

ID=6361723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115033A Expired - Lifetime EP0356805B1 (en) 1988-08-27 1989-08-15 Process for the production of alkali dichromates and chromic acid

Country Status (9)

Country Link
US (1) US5094729A (en)
EP (1) EP0356805B1 (en)
JP (1) JP2839155B2 (en)
AR (1) AR244811A1 (en)
BR (1) BR8904280A (en)
CA (1) CA1337807C (en)
DE (2) DE3829123A1 (en)
MX (1) MX170143B (en)
ZA (1) ZA896499B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6063252A (en) * 1997-08-08 2000-05-16 Raymond; John L. Method and apparatus for enriching the chromium in a chromium plating bath
RU2125120C1 (en) * 1997-09-29 1999-01-20 Иткин Герман Евсеевич Method of electrolysis of aqueous solution of salt
CN101892490A (en) * 2010-06-24 2010-11-24 中国科学院青海盐湖研究所 Method for continuously preparing sodium dichromate by ionic membrane electrolysis

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2051868A (en) * 1979-05-29 1981-01-21 Diamond Shamrock Corp Choice of operation parameters for chromic acid production method using a three compartment cell

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA739447A (en) * 1966-07-26 W. Carlin William Electrolytic production of chromic acid
US1878918A (en) * 1926-06-02 1932-09-20 Electro Metallurg Co Manufacture of chromic acid
US2333578A (en) * 1939-06-16 1943-11-02 Internat Smelting & Refining C Electrolytic chromate production
US3305463A (en) * 1962-03-16 1967-02-21 Pittsburgh Plate Glass Co Electrolytic production of dichromates
JPS5839916B2 (en) * 1975-12-29 1983-09-02 サイトウ カズオ ROUKA CHROME SANYO EKI NO SAISEI SHIYORIHOHOOUOYOBISOUCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2051868A (en) * 1979-05-29 1981-01-21 Diamond Shamrock Corp Choice of operation parameters for chromic acid production method using a three compartment cell

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, Band 87, Nr. 20, 14. November 1977, Seite 463, Zusammenfassung Nr. 159202k, Columbus, Ohio, US; & JP-A-77 81 097 (K. SAITO) 07-07-1977 *

Also Published As

Publication number Publication date
US5094729A (en) 1992-03-10
EP0356805A2 (en) 1990-03-07
ZA896499B (en) 1990-05-30
CA1337807C (en) 1995-12-26
AR244811A1 (en) 1993-11-30
DE58901477D1 (en) 1992-06-25
EP0356805B1 (en) 1992-05-20
JP2839155B2 (en) 1998-12-16
MX170143B (en) 1993-08-09
DE3829123A1 (en) 1990-03-01
BR8904280A (en) 1990-04-17
JPH02102128A (en) 1990-04-13

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