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:
Dec. 05, 1989
Filed:
Mar. 07, 1989
Christopher P Eppig, Cleveland Hts., OH (US);
Stephen C Paspek, North Royalton, OH (US);
Richard B Stalzer, Broadview Hts., OH (US);
The Standard Oil Company, Cleveland, OH (US);
Abstract
A process is disclosed for separating an organic material from a composition comprising said organic material intermixed with particulate solids, the process comprising advancing a light hydrocarbon fluid through said particulate solids at an effective rate to drive said organic material from said particulate solids. In applications wherein the product produced by said process comprises said particulate solids and undesirable residual organic material intermixed with said particulate solids, said process further comprises the steps of: advancing a higher molecular weight hydrocarbon fluid through said particulate solids at an effective rate to drive said undesirable residual organic material from said particulate solids, at least part of said higher molecular weight hydrocarbon fluid remaining intermixed with said particulate solids; and advancing a second light hydrocarbon fluid through said particulate solids at an effective rate to drive remaining higher molecular weight hydrocarbon fluid from said particulate solids.