Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Making catalytic electrode – process only
Patent
1982-03-08
1984-05-01
Konopka, P. E.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Making catalytic electrode, process only
204290F, 4271263, 4271265, 427309, 427380, 428472, C25B 1110, C25B 1108, B05D 512, B44D 118
Patent
active
044462450
ABSTRACT:
Used dimensionally stable electrodes having a valve-metal base and an originally conductive and electrocatalytic coating of e.g. ruthenium-titanium oxide are cleaned and activated by impregnation with a relatively dilute solution preferably containing only a decomposable platinum-group metal compound, followed by heating to enrich the old coating with platinum-group metal/oxide. A new outer electrocatalytic coating which is the same as or similar to the old coating is then applied on top.
REFERENCES:
patent: 3684543 (1972-08-01), de Nora et al.
patent: 3773554 (1973-11-01), Scrutton et al.
patent: 4112140 (1978-09-01), Heikel et al.
patent: 4214971 (1980-07-01), Heikel et al.
patent: 4285798 (1981-08-01), Yoshida et al.
patent: 4318795 (1982-03-01), Bianchi et al.
Diamond Shamrock Corporation
Harang Bruce E.
Hazzard John P.
Konopka P. E.
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