Methods and apparatus for isolating carboxylic acid

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof

Reexamination Certificate

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Reexamination Certificate

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07462736

ABSTRACT:
Disclosed are methods and apparatus for isolating a carboxylic acid. The processes employ a rotary pressure drum filter as a product isolation device in a carboxylic acid production process. The product isolation device is employed to isolate purified carboxylic acid particles from an isolation feed slurry comprising an aliphatic acid.

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PCT International Search Report for corresponding application.

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