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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 5185081 B1

PDFFull Text
Date of Patent:
Feb. 09, 1993

Filed:

Mar. 26, 1991

Method and apparatus for mixing and separating two liquid phases while

Applicant:
Inventors:

Bror G Nyman, Ulvila, FI;

Stig-Erik Hultholm, Pori, FI;

Launo L Lilja, Pori, FI;

Valto J Makitalo, Pori, FI;

Assignee:

Outokumpu Oy, Espoo, FI;

Attorney:

Brooks Haidt Haffner & Delahunty

Primary Examiner:

Joseph W Drodge

Int. Cl.
CPC ...
B01D / ; B01F / ;
U.S. Cl.
CPC ...
210634 ; 210511 ; 210513 ; 210801 ; 210D / ; 366292 ; 366320 ; 366348 ; 422228 ; 422229 ; 422259 ;
Abstract

A method and apparatus for mixing two different phases in a liquid-liquid extraction process and for separating the phases employs a spiral stirrer having two tubular coils for creating homogeneous circulation throughout a mixer. The stirrer rotates at a relatively slow speed to create an upward flow from bottom to top of the mixer near the mixer periphery and a downward flow in the middle of the mixer. The mixer has a flow reversing profile ring and is designed to prevent aeration and formation of an emulsion.

Find Patent Forward Citations

Nyman, Bror. (1993). Method and apparatus for mixing and separating two liquid phases while (U.S. Patent No. 5185081). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5185081

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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