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:
Feb. 07, 2012
Filed:
Oct. 13, 2008
Hyun Joo Lee, Seoul, KR;
Byoung Sung Ahn, Seoul, KR;
Hoon Sik Kim, Seongbuk-gu, KR;
Jin Hyung Kim, Seoul, KR;
Jung Min Lee, Dobong-gu, KR;
Hyun Joo Lee, Seoul, KR;
Byoung Sung Ahn, Seoul, KR;
Hoon Sik Kim, Seongbuk-gu, KR;
Jin Hyung Kim, Seoul, KR;
Jung Min Lee, Dobong-gu, KR;
Kolon Industries Inc., Gyeonggi-Do, KR;
Abstract
The present invention relates to a process for removing acetylenes from olefins by using an ionic liquid-based solution, and particularly to a process for removing a small amount of acetylenes contained in olefins by using an ionic liquid-based solution where copper halide (CuX, X=halogen atom) is dissolved. In an ionic liquid-based solution used in the present invention, copper halide (CuX) is stabilized by ionic liquid, thus preventing monovalent copper ion (Cu) from being oxidized into divalent copper ion (Cu), maintaining the superior activity of monovalent copper ion (Cu) in removing acetylene for a long period of time, and remarkably increasing the selective removal of acetylene-based compounds. Moreover, an ionic liquid-based solution used in the present invention may serve as an extracting solution as well as an absorbent, thereby facilitating the operation and reducing equipment cost in comparison to the conventional extracting agent used in a slurry phase.