Method for refining dicyclopentadiene
US9242909B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 11, 2009 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Jul 5, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/104
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.