发明名称 |
Method for preparing a glycol mono-tertiary-butylether compound |
摘要 |
Disclosed is a method of preparing a glycol mono-tertiary-butyl ether compound using a C4 hydrocarbon 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 C4 hydrocarbon 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. |
申请公布号 |
US8766015(B2) |
申请公布日期 |
2014.07.01 |
申请号 |
US201214000648 |
申请日期 |
2012.02.21 |
申请人 |
Daelim Industrial Co., Ltd. |
发明人 |
Kim Myeong-Seok;Uhm Jae-Hoon;Park Min-Sup;Seo Hyoung-Jae;Min Kyoung-Tae |
分类号 |
C07C41/06 |
主分类号 |
C07C41/06 |
代理机构 |
Heslin Rothenberg Farley & Mesiti P.C. |
代理人 |
Heslin Rothenberg Farley & Mesiti P.C. |
主权项 |
1. A method of preparing a glycol mono-tertiary-butyl ether compound, the method comprising:
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 C4 hydrocarbon 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 in 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. |
地址 |
Jongno-Gu, Seoul KR |