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:
Jul. 22, 2014
Filed:
Dec. 21, 2009
Hiroaki Nago, Hyogo, JP;
Shinichi Tai, Hyogo, JP;
Junichi Kawakami, Hyogo, JP;
Hiroyuki Hata, Hyogo, JP;
Shigeru Morimoto, Hyogo, JP;
Hiroaki Nago, Hyogo, JP;
Shinichi Tai, Hyogo, JP;
Junichi Kawakami, Hyogo, JP;
Hiroyuki Hata, Hyogo, JP;
Shigeru Morimoto, Hyogo, JP;
Sumitomo Seika Chemicals Co., Ltd., Hyogo, JP;
Abstract
A method for purifying a paraffin from a source material containing a paraffin having 2 to 6 carbon atoms and an olefin having 2 to 6 carbon atoms includes a first step of bringing the source material into contact with a silver ion-containing solution (absorption liquid) at a predetermined temperature and pressure in an absorption columnand recovering a non-absorbed gas not absorbed by the absorption liquid while the olefin in the source material is preferentially absorbed by the absorption liquid, and a second step of desorbing and discharging a gas component from the absorption liquid having undergone the first step at a predetermined temperature and pressure in a desorption column. The first step and the second step are performed continuously in parallel while the absorption liquid is circulated between the first step and the second step.