Inhibition of corrosion in a pipeline carrying a slurry

Details Inhibition of corrosion in a pipeline carrying a slurry Inhibition of corrosion in a pipeline carrying a slurry

1975-07-28

1976-12-07

Hayes, Lorenzo B.

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

21 27R, 252387, C23F 1108

Patent

active

039960587

ABSTRACT:
The method of inhibiting corrosion in a steel pipeline by a slurry comprising water as the vehicle for carrying a comminuted material which is reactive with oxygen, as for example, coal. Inhibition of corrosion is obtained by the addition to the slurry of pellets containing hexavalent chromate, which is released into the slurry in a controlled amount sufficient to inhibit corrosion but wherein the concentration of chromate is not so great that excessive amounts thereof are consumed by the slurry material.

REFERENCES:
patent: 2064325 (1936-12-01), Sutton et al.
patent: 2129459 (1938-09-01), Benoit
patent: 2169584 (1939-08-01), Kelley
patent: 3865547 (1975-02-01), Titus et al.

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