DEMULSIFICATION OF BITUMEN EMULSIONS USING WATER SOLUBLE EPOXY-CONTAINING POLYETHERS

摘要

DEMULSIFICATION OF BITUMEN EMULSIONS USINGWATER SOLUBLE EPOXY-CONTAINING POLYETHERSABSTRACT OF THE DISCLOSUREA process for recovering bitumen from oil-in-water(O/W) emulsions is disclosed wherein water soluble demulsi-fiers are used. These demulsifiers are water soluble poly-ethers prepared by the reaction between certain diepoxidesand poly(ethyleneoxy) glycols. To resolve the bituminouspetroleum emulsions, the process is carried out between 25and 160°C wherein the demulsifier of the invention is con-tacted with the bituminous emulsion.-I-