Control of dust during coal transportation

Details Control of dust during coal transportation Control of dust during coal transportation

1977-02-02

1979-09-25

Silverberg, Sam

Coating processes

Removable protective coating applied

Organic base

427154, 106277, 44 6, 414133, 414786, B65B 3300

Patent

active

041691709

ABSTRACT:
Spraying of coal in an open top hopper car with an aqueous composition containing at least about 2.5% of a binder material consisting of solid material in an aqueous suspension of an asphalt emulsion or a black liquor lignin product and containing 0.1 to 2.0% of water soluble ethoxylated alkyl phenol or sulfo succinate wetting agent results in the formation of a crust layer which provides protection against loss of coal due to wind action during rapid movement of the car.

REFERENCES:
patent: 1988999 (1935-01-01), Cunningham
patent: 2346650 (1944-04-01), Borenstein
patent: 2378235 (1945-06-01), Miles
patent: 2431891 (1947-12-01), Rosencranse
patent: 2448605 (1948-09-01), Kleinicke
patent: 3069293 (1962-12-01), Booth
patent: 3563714 (1971-02-01), Brewer
patent: 3808020 (1972-04-01), Pitchford

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