Process for recovering pure benzene and pure toluene from aromatic hydrocarbon products
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United States of America Patent
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Mar 3, 1998
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N/A
app pub date -
Aug 18, 1995
filing date -
Oct 21, 1994
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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.
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