Process for the separation of solvents from hydrocarbons dissolv

Details Process for the separation of solvents from hydrocarbons dissolv Process for the separation of solvents from hydrocarbons dissolv

1986-06-23

1988-05-31

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By membrane, selective septum, or coalescer

585819, 208308, 208321, 21050021, C10G 7308

Patent

active

047482885

ABSTRACT:
The invention is a process for the separation of solvents from hydrocarbons dissolved in the solvents which comprises contacting at elevated pressure a feed solution comprising hydrocarbons dissolved in an aromatic solvent and a polar aliphatic solvent with one side of a dense membrane which is substantially impermeable to the hydrocarbons, and which membrane comprises a layer of a halogen-substituted silicon compound, and recovering the solvents from the other side of the membrane.

REFERENCES:
patent: 3043891 (1962-07-01), Stuckey
patent: 3440204 (1969-04-01), McVannel
patent: 3919075 (1975-11-01), Parc et al.
patent: 4368112 (1983-01-01), Thompson et al.
patent: 4432866 (1984-02-01), West et al.

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