The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1987
Filed:
Aug. 12, 1986
William W Bodle, Deerfield, IL (US);
Paul B Tarman, Elmhurst, IL (US);
Institute of Gas Tehnology, Chicago, IL (US);
Abstract
A process for recovery of organic oils and residues in association with inorganic solids by solvent extraction and for the recovery of solvent used for the extraction. The organic solvent extracted inorganic solids having remaining associated organic solvent is fluidized in a bed with fluidizing gas comprising superheated vapor of the organic solvent vaporizing and removing a substantial portion of the associated organic solvent. Then the solids are countercurrently contacted with a combustion gas stream at a lower temperature than the solids physically stripping a substantial portion of the residual solvent from the solids, the combustion gas stream being enhanced for combustion by comprising stripped organic solvent and by being heated.