Process for recovering pure benzene and pure toluene from aromat

Details Process for recovering pure benzene and pure toluene from aromat Process for recovering pure benzene and pure toluene from aromat

1995-08-18

1998-03-03

Manoharan, Virginia

Distillation: processes, separatory

Adding material to distilland except water or steam per se

Organic compound

202154, 202155, 202172, 203 75, 203 78, 203 82, 203 84, 203 99, 203DIG19, 585807, 585865, 585808, B01D 340, C07C 708

Patent

active

057230269

ABSTRACT:
The production of high purity benzene and high purity toluene is obtained by utilizing the initial gas separating column for the treatment of the aromatic containing starting material as a separating column for separating a benzene rich from a toluene rich component. The benzene rich component is subject directly to distillation while the toluene is subject to predistillation to separate high boiling components and only then to extractive distillation is distilled to separate the high purity benzene from the high purity toluene.

REFERENCES:
patent: 3816302 (1974-06-01), Paret
patent: 3884769 (1975-05-01), Mikitenko et al.
patent: 4162198 (1979-07-01), Stockburger et al.
patent: 4306945 (1981-12-01), Montanari et al.
patent: 4586986 (1986-05-01), Preusser et al.
patent: 5107055 (1992-04-01), Klaumunzer et al.
patent: 5399244 (1995-03-01), Gentry et al.
patent: 5401365 (1995-03-01), Chen et al.

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