Process for forming stable aqueous asphalt emulsions

Details Process for forming stable aqueous asphalt emulsions Process for forming stable aqueous asphalt emulsions

1996-04-01

1999-01-05

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

44301, 2523115, B01J 1300, C10L 132

Patent

active

058566805

ABSTRACT:
A petroleum derived oil is subjected to crude oil distillation or propane deasphalting to yield a viscous asphalt residue. The viscous asphalt residue is combined with an aqueous emulsifier comprising an EO-PO-EO block copolymer and passed through a mixer at 60.degree. C. to 70.degree. C. to form an emulsion. Criticality has been found in the amount of propylene oxide in the block copolymer and in the asphalt particle size. These emulsions are stable and can be transported by pumping through a pipeline. They are used as boiler fuel. They are also gasified with insufficient oxygen to produce synthesis gas.

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