Chemistry: electrical and wave energy – Processes and products
Patent
1981-02-23
1983-11-15
Williams, Howard S.
Chemistry: electrical and wave energy
Processes and products
204 32R, 204 38B, 204 57, 204286, 204290F, C25B 1116
Patent
active
044154119
ABSTRACT:
An anode coated with .beta.-lead dioxide which comprises a titanium substrate, titanium expanded metal welded on at least one side of the titanium substrate, titanium reinforcing bars welded on the peripheries of said expanded metal to both said expanded metal and said substrate, at least one intermediate layer being applied on said substrate and said expanded metal, said intermediate layer consisting either of an alloy or an oxide of platinum group metals; and a .beta.-lead dioxide coating layer on said intermediate layer.
The anode of this invention has particularly good dimensional stability and provides excellent adhesion of the .beta.-lead dioxide coating layer to the substrate, and hence is highly suitable for the electrolytic production of chlorates, perchlorates, and periodates, and furthermore it is also useful as an insoluble anode in electroplating and in electrolytic treatment of waste water.
REFERENCES:
patent: 2872405 (1959-02-01), Miller et al.
patent: 3180761 (1965-04-01), Horn et al.
patent: 3207679 (1965-09-01), Schmidt
patent: 3953316 (1976-04-01), Baker
patent: 4236978 (1980-12-01), Prengaman et al.
Itai Reiichi
Kanai Hideo
Shinagawa Akihiro
Yamazaki Takahiro
Leader William
The Japan Carlit Co., Ltd.
Williams Howard S.
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