Solvent extraction of oil from oil-bearing materials

Details Solvent extraction of oil from oil-bearing materials Solvent extraction of oil from oil-bearing materials

1991-12-31

1994-01-25

Dees, Jose G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

554 2, 554 9, 554 11, 554 12, 554 20, 554185, 554205, C07C 100

Patent

active

052817326

ABSTRACT:
An improved low temperature process for extracting oil from oil-bearing materials by extracting the oil-bearing material in an extraction zone with a normally gaseous solvent selected from propane, butane, and mixtures thereof. As the resulting solvent/oil mixture is passed through the bed of extracted oil-bearing material, from the extraction zone, and to a separation zone, it is done so under conditions that will maintain the solvent in liquid form. The resulting extracted materials have substantially more of their protein and vitamin value intact when compared with similar materials extracted by more conventional high temperature methods. The present process is also a lower energy consuming process than more conventional, extractive processes.

REFERENCES:
patent: 4331695 (1982-05-01), Zasel
patent: 5041245 (1991-08-01), Benado

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