C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 51/265 (2006.01) C07C 51/42 (2006.01) C07C 63/14 (2006.01) C07C 63/26 (2006.01) C07C 51/47 (2006.01) C07C 51/48 (2006.01)
Patent
CA 2643687
Disclosed is an optimized system for more efficiently and economically producing terephthalic acid. A solvent purification system is employed to remove of at least one aromatic impurity present in a solvent purification feed. At least about 20 weight percent of the solvent purification feed originates from a cooled, post-digestion, TPA-containing slurry.
L'invention porte sur un système optimisé permettant de produire l'acide téréphtalique de manière plus efficace et plus économique. Un système de purification du solvant est utilisé pour retirer au moins une impureté aromatique présente dans la charge de purification du solvant. Au moins environ 20 % en poids de la charge de purification du solvant provient d'une boue refroidie, après digestion, contenant l'acide téréphtalique..
de Boer Martin
Fogle Raymond Elbert III
Partin Lee Reynolds
Sheppard Ronald Buford
Wonders Alan George
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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