ZA896495B - An electrochemical process for the production of chromic acid - Google Patents

An electrochemical process for the production of chromic acid

Info

Publication number
ZA896495B
ZA896495B ZA896495A ZA896495A ZA896495B ZA 896495 B ZA896495 B ZA 896495B ZA 896495 A ZA896495 A ZA 896495A ZA 896495 A ZA896495 A ZA 896495A ZA 896495 B ZA896495 B ZA 896495B
Authority
ZA
South Africa
Prior art keywords
production
chromic acid
electrochemical process
electrochemical
chromic
Prior art date
Application number
ZA896495A
Other languages
English (en)
Inventor
Hans-Dieter Block
Block Hans-Dieter
Norbert Loenhoff
Loenhoff Norbert
Bernd Makowka
Makowka Bernd
Helmut Klotz
Klotz Helmut
Rainer Weber
Weber Rainer
Bernhard Spreckelmeyer
Spreckelmeyer Bernhard
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 ZA896495B publication Critical patent/ZA896495B/xx

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
    • 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
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • 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
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C25B15/085—Removing impurities

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)
  • Automation & Control Theory (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
ZA896495A 1988-08-27 1989-08-25 An electrochemical process for the production of chromic acid ZA896495B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3829121A DE3829121A1 (de) 1988-08-27 1988-08-27 Elektrochemisches verfahren zur herstellung von chromsaeure

Publications (1)

Publication Number Publication Date
ZA896495B true ZA896495B (en) 1990-05-30

Family

ID=6361721

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA896495A ZA896495B (en) 1988-08-27 1989-08-25 An electrochemical process for the production of chromic acid

Country Status (15)

Country Link
US (1) US5068015A (fr)
EP (1) EP0356802B1 (fr)
JP (1) JP2812730B2 (fr)
KR (1) KR0152524B1 (fr)
AR (1) AR247252A1 (fr)
BR (1) BR8904252A (fr)
CA (1) CA1338145C (fr)
DD (1) DD284060A5 (fr)
DE (2) DE3829121A1 (fr)
ES (1) ES2042904T3 (fr)
MX (1) MX170481B (fr)
PL (1) PL163883B1 (fr)
RO (1) RO107136B1 (fr)
TR (1) TR24735A (fr)
ZA (1) ZA896495B (fr)

Families Citing this family (4)

* 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
CN103668301B (zh) * 2013-12-11 2016-08-24 中国科学院青海盐湖研究所 利用电解法制备铬酸钠溶液的装置和方法
CN108103521B (zh) * 2017-12-22 2019-10-15 四川省银河化学股份有限公司 一种提高电解法制备铬酸酐品质的方法
CN113184907A (zh) * 2021-05-31 2021-07-30 河钢承德钒钛新材料有限公司 一种铬酸钠的纯化方法

Family Cites Families (6)

* 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
US3046091A (en) * 1958-12-19 1962-07-24 Pittsburgh Plate Glass Co Preparation of alkali metal dichromate
US3305463A (en) * 1962-03-16 1967-02-21 Pittsburgh Plate Glass Co Electrolytic production of dichromates
US3454478A (en) * 1965-06-28 1969-07-08 Ppg Industries Inc Electrolytically reducing halide impurity content of alkali metal dichromate solutions
DE3829119A1 (de) * 1988-08-27 1990-03-01 Bayer Ag Verfahren zur herstellung von alkalidichromaten und chromsaeure
DE3829120A1 (de) * 1988-08-27 1990-03-01 Bayer Ag Verfahren zur herstellung eines elektrolyten zur erzeugung von alkalidichromaten und chromsaeure

Also Published As

Publication number Publication date
US5068015A (en) 1991-11-26
JPH02104684A (ja) 1990-04-17
DE58901937D1 (de) 1992-09-03
KR0152524B1 (ko) 1998-10-15
AR247252A1 (es) 1994-11-30
PL163883B1 (pl) 1994-05-31
EP0356802B1 (fr) 1992-07-29
KR900003418A (ko) 1990-03-26
CA1338145C (fr) 1996-03-12
ES2042904T3 (es) 1993-12-16
MX170481B (es) 1993-08-25
DE3829121A1 (de) 1990-03-01
EP0356802A2 (fr) 1990-03-07
TR24735A (tr) 1992-03-06
DD284060A5 (de) 1990-10-31
EP0356802A3 (en) 1990-05-16
RO107136B1 (ro) 1993-09-30
BR8904252A (pt) 1990-04-10
JP2812730B2 (ja) 1998-10-22

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