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.

Date of Patent:
Apr. 04, 2006

Filed:

Mar. 14, 2003
Applicants:

Heikki Heikkilä, Espoo, FI;

Jarmo Kuisma, Lohja AS, FI;

Jari Lewandowski, Siuntio, FI;

Hannu Paananen, Kantvik, FI;

Vili Ravanko, Clinton, IA (US);

Jukka Rinne, Kirkkonummi, FI;

Inventors:

Heikki Heikkilä, Espoo, FI;

Jarmo Kuisma, Lohja AS, FI;

Jari Lewandowski, Siuntio, FI;

Hannu Paananen, Kantvik, FI;

Vili Ravanko, Clinton, IA (US);

Jukka Rinne, Kirkkonummi, FI;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 15/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a method of fractionating liquid mixtures or solutions, comprising the steps of subjecting a feed in the form of a liquid mixture or solution to a first chromatographic separation, thereby recovering at least a fraction (A) and a fraction (B) both containing a first component or product, subjecting a mixture or solution derived from or comprising said fraction (A) to a second chromatographic separation, thereby recovering at least a fraction (C) rich in said first component or product and subjecting a mixture or solution derived from or comprising said fraction (B) to a third chromatographic separation, thereby recovering at least a fraction (D) also rich in said first component or product, and whereby at least two fractions are recovered from the second and third chromatographic separations.


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