Separation of alpha-Phellandrene from d-limonene by azeotropic d

Details Separation of alpha-Phellandrene from d-limonene by azeotropic d Separation of alpha-Phellandrene from d-limonene by azeotropic d

1994-03-14

1995-02-21

Bascomb, Jr., Wilbur

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 58, 203 60, 203 62, 203 63, 585350, 585860, 585862, 585865, 585866, B01D 336, C07C 706

Patent

active

053912640

ABSTRACT:
alpha-Phellandrene is difficult to separate from d-limonene by conventional distillation or rectification because of the proximity of their boiling points. alpha-Phellandrene can be readily separated from d-limonene by azeotropic distillation. Effective agents are n-butyl acetate and sulfolane.

REFERENCES:
patent: 2459433 (1949-01-01), Johnson et al.
patent: 2818435 (1957-12-01), Bain et al.
patent: 3987121 (1976-10-01), Koppel et al.
patent: 4136126 (1979-01-01), Hirschy et al.
patent: 4508930 (1985-04-01), Wideman et al.

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