PROCESS FOR THE PRODUCTION OF PURIFIED TEREPHTHALIC ACID

Application 221/MUMNP/2003 published 2006-05-05, filed 2003-02-14
Disclosed is a process for the production of terephthalic acid by a plurality of process steps including the catalyst oxidation of a dialkylbenzene compound, a second oxidation, a hydrogenation of the product of the second oxidation, and crystallization of the hydrogenation terephthalic acid using a plurality of series-connected crystallizers. Drawing Sheets. 02 Total Pages: 30 (FIG.-NIL)

Applicant

EASTMAN CHEMICAL COMPANY
100 NORTH EASTMAN ROAD, KINGSPORT, TENNESSEE 37660, U.S.A.

Inventor

1. ROBERT LIN 2. RUAIRI SEOSAMH O’MEADHRA 3. RONALD BUFORD SHEPPARD

International Info

Classification: C07C 51/43, 63/26
Publication Number: WO 02/098836

Priority Information

60/295,619 U.S.A. 2001-06-04
10/161,571 U.S.A. 2002-05-31