Impressed current cathodic protection system employing cobalt sp

Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge

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204196, 204290F, C23F 1300

Patent

active

H00005444

ABSTRACT:
Impressed current cathodic protection systems employing an anode having a cobalt spinel type surface, said surface having the formula: M.sub.x Z.sub.y Co.sub.(3-(x+y)) O.sub.4, where M is a metal or a mixture of two or more metals selected from the group of metals contained in Groups IB, IIA, and IIB of the periodic table of the elements, where Z is a metal or a mixture of two or more metals selected from the group of metals contained in Group IA of the periodic table of the elements, where 0.ltoreq.x.ltoreq.1, where 0.ltoreq.y.ltoreq.0.5, and where 0.ltoreq.(x+2y).ltoreq.1.

REFERENCES:
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patent: 3414496 (1968-12-01), Sudbury et al.
patent: 3711397 (1973-01-01), Martinsons
patent: 4056446 (1977-11-01), Vennett
patent: 4116782 (1978-09-01), Bon
patent: 4369105 (1983-01-01), Caldwell et al.

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