Process of treating sponge iron for protection against reoxidati

Details Process of treating sponge iron for protection against reoxidati Process of treating sponge iron for protection against reoxidati

1978-07-14

1981-03-03

Rutledge, L. Dewayne

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

75256, 427242, 428403, 428471, B05D 700

Patent

active

042541670

ABSTRACT:
A process for treating sponge iron to protect it against reoxidation and/or corrosion during storage and transit comprising the steps of tumbling sponge iron which is in particle form with a pre-prepared blend of caustic lime powder and an adhesion promoting additive selected from the group consisting of iron oxide or mixtures thereof with iron to produce a coated product, the blend containing 1 to 20% by weight iron oxide; and then moistening the coated product with an amount of water less than the amount of water required for complete hydration of the caustic lime.

REFERENCES:
patent: 2871115 (1959-01-01), Agarwal
patent: 3185563 (1965-05-01), Jones et al.
patent: 3690930 (1972-09-01), Mueller et al.
patent: 4075370 (1978-02-01), Burlingame et al.
patent: 4116679 (1978-09-01), Pietsch

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