Extractive distillation method

Details Extractive distillation method Extractive distillation method

1983-03-28

1984-05-08

Gantz, Delbert E.

Mineral oils: processes and products

Fractionation

Distillation

208353, 203 25, 203 81, 203 82, 203 74, 203 75, 203 60, C10G 708, C10G 700, B01D 300, B01D 340

Patent

active

044473184

ABSTRACT:
In a method for separating a hydrocarbon mixture into relatively difficultly soluble hydrocarbons and relatively easily soluble hydrocarbons by extractive distillation using a polar solvent comprising feeding the starting hydrocarbon mixture to at least two evaporators, an extractive distillation column, a stripping column and a rectifying column; the improvement wherein

REFERENCES:
patent: 2033472 (1936-03-01), Keith, Jr.
patent: 3436436 (1969-04-01), Takao et al.
patent: 4076595 (1978-02-01), Haskell
Wagner et al., "BASF Process for Production of Pure Butadiene" I.E.C., vol. 62, No. 4, Apr. 1970, pp. 43-48.

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