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:
Jul. 20, 1993
Filed:
Mar. 26, 1991
Applicant:
Inventors:
Assignee:
Fried. Krupp GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210634 ;
Abstract
A method and apparatus for the separation of viscous mixtures, comprising charging the mixture with solvent to form a dispersion before extraction to improve the extraction over a simple solvent extraction. The mixture to be treated is charged with solvent before the extraction and is then sprayed into the extraction column where it is dispersed. This treatment provides extraction of highly viscous, pasty materials. The charging with solvent can take place until the mixture is saturated with the solvent, and favorable temperature and pressure conditions for charging may be provided in a charging column that is separate from the extraction column.