Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By contact with solid sorbent
Patent
1990-07-26
1991-02-26
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By contact with solid sorbent
208310R, 208310Z, 585820, 585826, C07C 713
Patent
active
049963880
ABSTRACT:
A process of separating the ortho, meta and para isomers of ethyltoluene. One aspect employs a ferrierite absorbent which separates the para isomer from a mixture of the same and at least one of the meta and ortho isomers. A second aspect employs a silicalite absorbent which separates the ortho isomer from a mixture of the same and the meta isomer. A third aspect combines the ferrierite and silicalite absorbents in sequence to separate a mixture of the ortho, meta and para isomers into the essentially pure compounds.
Garces Juan M.
Lee Guo-shuh J.
Olken Michael M.
Davis Curtis R.
Diemler William
The Dow Chemical Company
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