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. 01, 2014
Filed:
Feb. 21, 2012
Myeong-seok Kim, Daejeon, KR;
Jae-hoon Uhm, Daejeon, KR;
Min-sup Park, Daejeon, KR;
Hyoung-jae Seo, Daejeon, KR;
Kyoung-tae Min, Daejeon, KR;
Myeong-Seok Kim, Daejeon, 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., Jongno-Gu, Seoul, KR;
Abstract
Disclosed is a method of preparing a glycol mono-tertiary-butyl ether compound using a Chydrocarbon mixture containing isobutene and a glycol compound as reactants, in which a glycol di-tertiary-butyl ether compound as a byproduct is decomposed into isobutene and a glycol compound and the obtained isobutene and glycol compound are recycled as reactants, whereby product yield per unit raw material may be maximized. The method includes a catalytic reaction step for preparing a glycol mono-tertiary-butyl ether compound and a glycol di-tertiary-butyl ether compound as a byproduct by reaction between a glycol compound and a Chydrocarbon mixture containing isobutene in the presence of an acidic catalyst, a byproduct extraction step for separating the glycol mono-tertiary-butyl ether compound and the glycol di-tertiary-butyl ether compound, prepared through the catalytic reaction step, using a hydrophilic extractant and a lipophilic extractant, and a byproduct decomposition and recycling step for decomposing the separated glycol di-tertiary-butyl ether compound into a glycol compound and isobutene and recycling the decomposed glycol compound and isobutene as the reactants to the catalytic reaction step.