Chemistry: electrical and wave energy – Processes and products
Patent
1982-05-13
1983-07-05
Andrews, R. L.
Chemistry: electrical and wave energy
Processes and products
204125, C25B 116, C25B 142
Patent
active
043916813
ABSTRACT:
The present invention relates to a method of inhibiting the formation of and/or breaking of preformed mercury butter in chlor-alkali cells. The method comprises introducing at any one of the numerous stages of the electrolytic process an aqueous solution of a surfactant material which enables the interfacial tension of the sodium-amalgam interface to be increased to or maintained above a value of 180 dynes/cm. The surfactants may be extracts of decaying vegetation, solutions of carboxylic acids or chlorohydrocarbons. Extracts containing lignite or humic acids are most effective.
REFERENCES:
patent: 3415727 (1968-12-01), Hass et al.
patent: 3502434 (1970-03-01), MacMillan
patent: 3535215 (1970-10-01), Grotheer
patent: 3954580 (1976-05-01), Kaminsky et al.
Anderson Susan
Brown David E.
Graham David E.
Mahmood Mahmood N.
Man Maurice C. M.
Andrews R. L.
The British Petroleum Company p.l.c.
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