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Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
In Kyu Park0
Jong Suh Park0
Seong Hoon Kang0
Yeong Dae Kim0
Date of Patent
March 22, 2011
Patent Application Number
12312374
Date Filed
November 15, 2007
Patent Primary Examiner
Patent abstract
The present invention relates to a method for purifying terephthalaldehyde which comprises a first step of dissolving terephthalaldehyde containing impurities in an aromatic solvent at high temperature to prepare a solution; and a second step of quenching the solution to re-crystallize it into terephthalaldehyde. In accordance with the present invention, high pure terephthalaldehyde may be economically prepared.
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