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:
Dec. 23, 2014
Filed:
Jun. 08, 2011
Won Seob Song, Ulsan, KR;
Sung Yul Woo, Ulsan, KR;
Boo Weon Song, Ulsan, KR;
Seong Han Park, Ulsan, KR;
Myoung Suk Kwon, Ulsan, KR;
Won Seob Song, Ulsan, KR;
Sung Yul Woo, Ulsan, KR;
Boo Weon Song, Ulsan, KR;
Seong Han Park, Ulsan, KR;
Myoung Suk Kwon, Ulsan, KR;
Abstract
A method of preparing chlorohydrins and a method of preparing epichlorohydrin using chlorohydrins prepared by using the same method are provided. The method is to prepare chlorohydrins by reacting polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst, and the method includes at least one combination of a series of unit operations including the following steps in the following stated order: a first reaction step; a water removal step; and a second reaction step, wherein the water removing step is performed by distillation operation based on a boiling point difference between constituents of a reaction mixture. The method of preparing epichlorohydrin includes reacting chlorohydrins prepared by using the method of preparing chlorohydrins with an alkaline agent.