Process for production of a dried carboxylic acid cake...

Details Process for production of a dried carboxylic acid cake... Process for production of a dried carboxylic acid cake...

2004-01-15

2009-06-16

Oh, Taylor Victor (Department: 1625)

Refrigeration

Refrigeration producer

Sorbent type

C562S416000

Reexamination Certificate

active

07546747

ABSTRACT:
The present invention relates to a process by which a dried carboxylic acid cake is obtained from a slurry or cake carboxylic acid product through the use of at least one counter current wash. More specifically, the present invention relates to a process by which a dried terephthalic acid cake suitable as a starting material for polyester or co-polyester production is obtained from a slurry or cake terephthalic acid product through the use of at least one counter current wash.

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