C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
202/76
C10G 7/08 (2006.01)
Patent
CA 2008029
In this process the hydrocarbon material of the starting product is separated in an extractive distillation column in which an N-substituted morpholine whose substituents do not have more than seven carbon atoms is used as a selective solvent. The raffinate comes down as a top product of the extractive distillation and is fed through a coalescer in which the sump product comes down with a solvent content of 20 to 75 % by weight at a temperature of 20 to 70°C and subsequent to that is fed into a separating vessel. There it is separated into a heavier and lighter phase. After that the heavier phase is conducted into an extractive distillation column and the lighter phase into the raffinate distillation column.
Emmrich Gerd
Rudel Ulrich
Schneider Hans-Christoph
Emmrich Gerd
Fetherstonhaugh & Co.
Krupp Koppers Gmbh
Rudel Ulrich
Schneider Hans-Christoph
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