Integrated process for the production of alkali and alkaline ear

Details Integrated process for the production of alkali and alkaline ear Integrated process for the production of alkali and alkaline ear

1992-07-31

1994-03-15

Gorgos, Kathryn

Chemistry: electrical and wave energy

Processes and products

423 55, 423478, C25B 126

Patent

active

052943070

ABSTRACT:
An integrated process for the production of alkali or alkaline earth metal chlorates and chlorine dioxide in which the chromium compound impurities in the alkali or alkaline earth metal chlorate aqueous solution produced by an electrochemical cell are removed and recycled to the electrochemical cell; a substantially chromium compound free alkali or alkaline earth metal chlorate is converted to chlorine dioxide and by-products; and the by-products are converted to substantially chlorine-free carbon dioxide, which is vented, and a dilute solution of an alkali or alkaline earth metal chlorate, which is recycled to the electrochemical cell.

REFERENCES:
patent: 4159929 (1979-07-01), Grotheer
patent: 4175038 (1979-11-01), Sakowski
patent: 4216195 (1980-08-01), Jaszka et al.
patent: 4268486 (1981-05-01), Noack et al.
patent: 4473540 (1984-09-01), Fredette
patent: 4704259 (1987-11-01), Lipsztajn
patent: 4804528 (1989-02-01), Warren
patent: 4938943 (1990-07-01), Norell
patent: 5211853 (1993-05-01), Jackson et al.

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