EP 0235027 B1 19890531 - PROCESS OF FRACTIONATING SOLID ASPHALTS
Title (en)
PROCESS OF FRACTIONATING SOLID ASPHALTS
Publication
Application
Priority
FR 8602782 A 19860226
Abstract (en)
[origin: US4755278A] This process for fractionating solid asphalts is operable under low temperature and pressure conditions. The process consists of treating a suspension of asphalt powder in a surfactant-containing aqueous phase by means of a hydrocarbon solvent immiscible with water and of separating: an hydrocarbon phase containing asphalt of softening point lower than that of the initial asphalt, and an aqueous phase wherein is suspended asphalt of softening point higher than that of the initial asphalt.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
C10C 3/08 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE GB IT NL
DOCDB simple family (publication)
EP 0235027 A1 19870902; EP 0235027 B1 19890531; CA 1296279 C 19920225; DE 3760203 D1 19890706; FR 2594839 A1 19870828; FR 2594839 B1 19881104; JP H0832887 B2 19960329; JP S62205191 A 19870909; US 4755278 A 19880705
DOCDB simple family (application)
EP 87400334 A 19870216; CA 530697 A 19870226; DE 3760203 T 19870216; FR 8602782 A 19860226; JP 4510187 A 19870226; US 1926287 A 19870226