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. 19, 2015
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
Provided are a method of preparing a chlorohydrin composition and a method of preparing epichlorohydrin by using a chlorohydrin composition prepared by using the method. The method of preparing chlorohydrins in which polyhydroxy aliphatic hydrocarbon is reacted with a chlorination agent in the presence of a catalyst includes performing at least one combination of a series of unit operations comprising a first reaction step, a water removal step, and a second reaction step in this stated order, wherein the method further includes mixing a chlorohydrin concentrate obtained by purifying the reaction mixture discharged from the final reaction step from among the reaction steps and a water-rich layer discharged from the water-removal step and diluting the mixture with water. The method of preparing epichlorohydrin includes contacting the chlorohydrin composition prepared by using the method of preparing a chlorohydrin composition with an alkaline agent.