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Universal Oil Products Co
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Universal Oil Products Co
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Application filed by Universal Oil Products CofiledCriticalUniversal Oil Products Co
Priority to ES0269783ApriorityCriticalpatent/ES269783A1/en
Publication of ES269783A1publicationCriticalpatent/ES269783A1/en
A solvent extraction process, in which a hydrocarbon mixture containing chromatic and non-aromatic hydrocarbons, is contacted in an extraction zone with a solvent composition, which selectively dissolves the aromatic component of said mixture and which contains water and a organic solvent boiling above said aromatic component, the resulting raffinate and an extract phase containing dissolved aromatic component are removed separately from said extraction zone, said extract phase is then subjected to a distillation in a distillation zone, and a header stream of distillate vapor containing only a portion of the extracted aromatic component and a vaporized vapor-containing side fraction of water vapor, and aromatic hydrocarbon vapor are separated independently of said distillation zone, characterized in that said side fraction in the form of steam is supplied from said area of distillation directly to a separate rectifying zone and is separated therein by fractionation into an aromatic extract fraction and an aqueous distillate substantially free of solvent, and said extract fraction and said refining are washed with said aqueous distillate. (Machine-translation by Google Translate, not legally binding)
ES0269783A1961-08-111961-08-11A procedure of extraction with solvent (Machine-translation by Google Translate, not legally binding)
ExpiredES269783A1
(en)
Procedure for obtaining aromatic hydrocarbons from mixtures of aromatic hydrocarbons and non-aromatic hydrocarbons by extraction with solvent. (Machine-translation by Google Translate, not legally binding)
A procedure for the separation of hydrocarbons from a supply of hydrocarbons that also contains non-aromatic hydrocarbons. (Machine-translation by Google Translate, not legally binding)