Separation of 1,2,4-trimethylbenzene from 1,2,3-trimethylbenzene

Details Separation of 1,2,4-trimethylbenzene from 1,2,3-trimethylbenzene Separation of 1,2,4-trimethylbenzene from 1,2,3-trimethylbenzene

1997-01-02

1998-02-24

Manoharan, Virginia

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

203 58, 203 60, 203 61, 203 62, 203 63, 203 64, 203 65, 203 67, 585804, 585865, 585866, 585867, 585868, B01D 336

Patent

active

057208573

ABSTRACT:
1,2,4-Trimethylbenzene is difficult to sepparate from 1,2,3-trimethylbenzene because of the proximity of their boiling points. They are readily separated by azeotropic distillation. Effective agents are 1-propanol, methyl formate and 1-nitropropane.

REFERENCES:
patent: 3987120 (1976-10-01), Hosler
patent: 4021311 (1977-05-01), Becker
patent: 4280881 (1981-07-01), Montagna
patent: 4596655 (1986-06-01), Van Eijl
patent: 4615771 (1986-10-01), Zimmerman et al.

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