Process for electrochemical reduction of terephthalic acid

Details Process for electrochemical reduction of terephthalic acid Process for electrochemical reduction of terephthalic acid

1981-11-09

1983-04-26

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204 73R, C25B 300

Patent

active

043812295

ABSTRACT:
Terephthalic acid is electrochemically reduced to p-hydroxymethylbenzoic acid in a process in an electrolysis cell in which (a) the cathode is solid and metal with an amalgam of mercury surface and has a hydrogen overvoltage which is greater than the potential for the reduction of terephthalic acid to p-hydroxymethylbenzoic acid, and, (b) sufficient mercury is added of a mercury compound to maintain the process.

REFERENCES:
patent: 3929613 (1975-12-01), Michelet
patent: 3984294 (1976-10-01), Nohe et al.

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