Synthetic asphalt and its production

Details Synthetic asphalt and its production Synthetic asphalt and its production

C - Chemistry, Metallurgy

10

C

6/167, 196/35

C10C 3/02 (2006.01)

Patent

CA 1083063

ABSTRACT Novel bituminous binding and coating agents suitable for, e.g., road surfacing and similar applications, are made by reacting elemental sulfur with a hydrocarbon feedstock at temperatures of from 180°C up to no more than 20°C below the boiling point of the feedstock, until all the sulfur has reacted. The hydrocarbon feedstock is preferably at least one selected from feedstocks comprising aromatic extracts, precipitated and other asphalts (e.g. straight run and vacuum bottom), catalytic cycle oil, deasphalted aromatic hydrocarbons and heavy vacuum pipestill side streams, and the like. Preferably, the reaction temperature is as low as is economically possible - e.g. 180 to 320°C. The novel products have advantageous properties compared to conventional bituminous or asphaltic products.

268401

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