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:
Sep. 27, 2011

Filed:

Jul. 28, 2010
Applicants:

Yizu Zhu, Lexington, MA (US);

Johan Van Walsem, Acton, MA (US);

Inventors:

Yizu Zhu, Lexington, MA (US);

Johan van Walsem, Acton, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 27/26 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides fractional condensation apparatuses, systems and methods that can recover volatile products from highly diluted liquid and vapor feed mixtures with high purity and recovery yield, both in batch and continuous distillation, while being also designed to achieve low-cost and efficient recovery processes. Single apparatuses and columns can be connected to each other to expand or shrink the column length for desired separation. The apparatuses, systems and methods can be applied to separate mixtures with both narrow and wide boiling point ranges.


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