US Patent 7678275 Method and equipment for liquid-liquid extraction

Patent 7678275 was granted and assigned to Outotec on March, 2010 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Outotec

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

76782750

Patent Inventor Names

Juhani Lyyra0

Pertti Pekkala0

Launo Lilja0

Stig-Erik Hultholm0

Raimo Kuusisto0

Bror Nyman0

Eero Ekman0

Date of Patent

March 16, 2010

Patent Application Number

105497210

Date Filed

March 15, 2004

Patent Primary Examiner

‌

Joseph W Drodge

Patent abstract

The invention relates to a method for reversing the dispersion formed in the mixing section of liquid-liquid extraction and kept condensed in the separation section and the separated solutions form the rear end of the separation section to flow back towards the feed end of the separation section. The invention also refers to the extraction equipment for implementing the reversed flow.