Chemistry: electrical and wave energy – Processes and products
Patent
1982-09-09
1985-07-02
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
204 87, 204101, 204103, 204128, C25B 103, C25B 122
Patent
active
045266620
ABSTRACT:
A process for the recovery of cyanide from thiocyanate. An aqueous solution containing thiocyanate is introduced into an electrochemical reactor. The reactor is activated for an appropriate time period while the pH of the solution is maintained in the range of 1 to 4. The cyanide formed can be recovered, in various ways including recovery as hydrocyanic acid. Alternatively, an aqueous solution containing thiocyanate is introduced into a suitable electrochemical reactor. The reactor is activated for an appropriate time period while the pH of the solution is maintained in the range of 10 to 12 to produce relatively harmless products, for example, cyanate, ammonia, carbon dioxide and nitrogen.
REFERENCES:
patent: 2260881 (1941-10-01), Beier
patent: 4319968 (1982-03-01), Ueno et al.
Byerley John J.
Enns Kurt
Schnurr Daryl W.
Williams Howard S.
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