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.:

US 4828702 B1

Date of Patent:

May. 09, 1989

Filed:

Aug. 25, 1987

Process for separating a solid substance from a liquid mixture of

Applicant:

Inventors:

Hubert Coenen, Essen, DE;

Rainer Hagen, Berlin, DE;

Klaus Reimann, Essen, DE;

Assignee:

Fried. Krupp gesellschaft mit beschrankter Haftung, Essen, DE;

Attorney:

Sughrue, Mion, Zinn, Macpeak, and Seas

Primary Examiner:

Peter Hruskoci

Int. Cl.

CPC ...

B01D / ;

U.S. Cl.

CPC ...

210634 ; 203 49 ; 260403 ;

Abstract

Process for separating solid substances from liquid mixtures of substances, wherein the liquid substances contained in the mixture are separated from the solid substances by countercurrent extraction with a solvent which, during the extraction process, is in a liquid or supercritical state and which, under standard conditions, is gaseous. The solvent is fed to a cylindrical extraction chamber at the lowest point of the extraction chamber. The solvent leaves the nozzles with a Reynold's number of 40,000 and flows upward in the extraction chamber with a Reynold's number of 2,700 to 8,000.

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