Safe sulfur slurry

Details Safe sulfur slurry Safe sulfur slurry

1999-12-17

2000-11-28

Brunsman, David

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

106275, C09D19500

Patent

active

061530042

ABSTRACT:
A sulfur in oil in asphalt blend is disclosed. A polymer-free slurry of solid, elemental, sulfur in liquid oil is used to add sulfur to asphalt. Addition of a slurry of solid sulfur in oil, or oil containing sulfur compounds, permits rapid and effective dispersion of the sulfur component in the asphalt. Uneven mixing, which can occur when sulfur is separately added as a solid, or in molten forms to the asphalt, is avoided. The method is safer because formation of explosive clouds of sulfur dust is avoided.

REFERENCES:
patent: 4211575 (1980-07-01), Burris
patent: 4283231 (1981-08-01), Clementoni et al.
patent: 5961709 (1999-10-01), Hayner et al.
patent: 6001162 (1999-12-01), Hayner et al.

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