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:
Oct. 10, 2017
Filed:
Dec. 08, 2015
Jx Nippon Oil & Energy Corporation, Tokyo, JP;
Jx Nippon Chemical Texas Inc., Pasadena, TX (US);
Takaaki Takeshita, Tokyo, JP;
Takeshi Omata, Pasadena, TX (US);
Takashi Suzuki, Tokyo, JP;
Takashi Morikita, Tokyo, JP;
Satoshi Mori, Pasadena, TX (US);
JX NIPPON OIL & ENERGY CORPORATION, Tokyo, JP;
JX NIPPON CHEMICAL TEXAS INC., Pasadena, TX (US);
Abstract
A first method for refining dicyclopentadiene of the present invention is characterized in that the method separates and recovers dicyclopentadiene by distilling the crude dicyclopentadiene that contains dicyclopentadiene and is obtained by removing a C5 fraction and a BTX fraction from the reaction product obtained by dimerization reaction of the cracked gasoline by-produced in an ethylene plant that uses as feed stock a C2 fraction, a C3 fraction and a C4 fraction. A second method for refining dicyclopentadiene of the present invention is characterized in that the dicyclopentadiene-containing fraction refined by distillation is brought into contact with an inert gas or a hydrocarbon gas having 1 to 3 carbon atoms.