ZA896499B - Processes for the preparation of alkali metal dichromates and chromic acid - Google Patents

Processes for the preparation of alkali metal dichromates and chromic acid

Info

Publication number
ZA896499B
ZA896499B ZA896499A ZA896499A ZA896499B ZA 896499 B ZA896499 B ZA 896499B ZA 896499 A ZA896499 A ZA 896499A ZA 896499 A ZA896499 A ZA 896499A ZA 896499 B ZA896499 B ZA 896499B
Authority
ZA
South Africa
Prior art keywords
processes
preparation
alkali metal
chromic acid
metal dichromates
Prior art date
Application number
ZA896499A
Other languages
English (en)
Inventor
Helmut Klotz
Klotz Helmut
Hans-Dieter Pinter
Pinter Hans-Dieter
Rainer Weber
Weber Rainer
Hans-Dieter Block
Block Hans-Dieter
Norbert Loenhoff
Loenhoff Norbert
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 ZA896499B publication Critical patent/ZA896499B/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
ZA896499A 1988-08-27 1989-08-25 Processes for the preparation of alkali metal dichromates and chromic acid ZA896499B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3829123A DE3829123A1 (de) 1988-08-27 1988-08-27 Verfahren zur herstellung von alkalidichromaten und chromsaeure

Publications (1)

Publication Number Publication Date
ZA896499B true ZA896499B (en) 1990-05-30

Family

ID=6361723

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA896499A ZA896499B (en) 1988-08-27 1989-08-25 Processes for the preparation of alkali metal dichromates and chromic acid

Country Status (9)

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

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 (ru) * 1997-09-29 1999-01-20 Иткин Герман Евсеевич Способ проведения электролиза водного раствора соли
CN101892490A (zh) * 2010-06-24 2010-11-24 中国科学院青海盐湖研究所 一种离子膜电解法连续制备重铬酸钠的方法

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
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 (ja) * 1975-12-29 1983-09-02 サイトウ カズオ ロウカクロムサンヨウエキノサイセイシヨリホウホウオヨビソウチ
US4290864A (en) * 1979-05-29 1981-09-22 Diamond Shamrock Corporation Chromic acid production process using a three-compartment cell

Also Published As

Publication number Publication date
CA1337807C (en) 1995-12-26
JP2839155B2 (ja) 1998-12-16
EP0356805A2 (de) 1990-03-07
DE3829123A1 (de) 1990-03-01
JPH02102128A (ja) 1990-04-13
AR244811A1 (es) 1993-11-30
EP0356805A3 (en) 1990-04-18
BR8904280A (pt) 1990-04-17
US5094729A (en) 1992-03-10
EP0356805B1 (de) 1992-05-20
DE58901477D1 (de) 1992-06-25
MX170143B (es) 1993-08-09

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