Production of hard ashphalts by ultrafiltration of vacuum...

Details Production of hard ashphalts by ultrafiltration of vacuum... Production of hard ashphalts by ultrafiltration of vacuum...

B - Operations, Transporting

01

D

B01D 61/14 (2006.01) C10C 1/00 (2006.01) C10C 3/00 (2006.01) C10G 31/11 (2006.01)

Patent

CA 2113900

2113900 9304143 PCTABS00020 Hard asphalts exhibiting acceptable penetration and low temperature properties can be produced from vacuum residua from which such hard asphalts are not normally obtainable via typical vacuum distillate such as that derived from Arab Light crudes and/or feeds substantially comprising Arab Light-type crudes by ultrafiltering the residua through a membrane.

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