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:
May. 02, 2017
Filed:
Feb. 17, 2012
Myeong-seok Kim, Daejon, KR;
Jae-hoon Uhm, Daejeon, KR;
Min-sup Park, Daejeon, KR;
Hyoung-jae Seo, Daejeon, KR;
Kyoung-tae Min, Daejeon, KR;
Myeong-Seok Kim, Daejon, KR;
Jae-Hoon Uhm, Daejeon, KR;
Min-Sup Park, Daejeon, KR;
Hyoung-Jae Seo, Daejeon, KR;
Kyoung-Tae Min, Daejeon, KR;
DAELIM INDUSTRIAL CO., LTD., Seoul, KR;
Abstract
Disclosed is a method of preparing isobutene in which high-purity isobutene is separated (prepared) from a Cmixture by cracking glycol ether prepared from a Cmixture (in particular, Craffinate-1) containing isobutene and a glycol. The method includes cracking glycol ether into isobutene and glycol at a temperature between 50° C. and 300° C. in the presence of a strongly acidic catalyst. The glycol ether may be prepared by reaction between a Cmixture containing isobutene and glycol in the presence of an acid catalyst.