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.:
Date of Patent:
Nov. 18, 2014
Filed:
Jan. 18, 2010
Applicants:
Sung-kyu Lee, Daejeon, KR;
Joon-ho Shin, Daejeon, KR;
Jong-ku Lee, Daejeon, KR;
Inventors:
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 3/14 (2006.01); C07C 31/12 (2006.01); C07C 29/80 (2006.01);
U.S. Cl.
CPC ...
B01D 3/14 (2013.01); C07C 31/12 (2013.01); B01D 3/141 (2013.01); C07C 29/80 (2013.01);
Abstract
A dividing wall distillation column for producing high-purity n-butanol and a method for the production of high-purity n-butanol by fractional distillation are disclosed. More particularly, the method which provides a dividing wall distillation column with crude n-butanol as a feed to perform a fractional distillation of n-butanol and an apparatus thereof are disclosed. The dividing wall distillation column exhibits the effects of a two distillation column from only one distillation column, thereby reducing energy and the costs of installing the apparatus as compared to conventional distillation systems.