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Expired
Application number
GB31157/58A
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ExxonMobil Technology and Engineering Co
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Exxon Research and Engineering Co
Esso Research and Engineering Co
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Publication of GB828777ApublicationCriticalpatent/GB828777A/en
C07C7/00—Purification; Separation; Use of additives
C07C7/12—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers
C07C7/13—Purification; Separation; Use of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers by molecular-sieve technique
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Engineering & Computer Science
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Analytical Chemistry
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Oil, Petroleum & Natural Gas
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Solid-Sorbent Or Filter-Aiding Compositions
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
Isomeric mixtures of disubstituted aromatic compounds are resolved by contacting with a crystalline metallic alumino-silicate molecular sieve having a pore size of 6-15 Angstrom units at 292-650 DEG F. Mixtures which may be separated include the dimethyl, diethyl, dihalo, dinitro, dicarboxylic acid and disulphonic acid derivatives of benzene. In separating xylenes, the meta- and ortho-substituted derivatives are adsorbed by the sieve and the para-derivative is thus obtained pure. Adsorbed materials are readily displaced by steam.
GB31157/58A1957-11-051958-09-30Improvements in or relating to the separation of isomeric disubstituted aromatic compounds
ExpiredGB828777A
(en)
ADSORTIVE SEPARATION PROCESS FOR THE SEPARATION OF PARADISOME FROM A LOAD OF HYDROCARBONS THAT INCLUDES A MIXTURE OF BIALKYLSUBSTITUTED MONOCYCLIC AROMATIC ISOMERS
A process for separating para-xylene from a feedstock comprising a mixture of isomers of C8 aromatic hydrocarbons comprising ethylbenzene and at least one other xylene.