Method for producing di(2-ethylyhexyl) terephthalate
US9090557B2 · kind B2 · utility
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2References
9Claims
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Assignee
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Key dates
| Filing date | Jan 7, 2014 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Jan 7, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a method for producing di(2-ethylhexyl)terephthalate (DOTP), which comprises subjecting terephthalic acid and 2-ethylhexanol to esterification in the presence of a chelate catalyst. The method of the present invention increases the reaction rate, improves the filtration efficiency of the ester product and yields DOTP with low APHA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.