Preparation of acetic acid

Details Preparation of acetic acid Preparation of acetic acid

2008-12-08

2011-12-13

Zucker, Paul A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

Reexamination Certificate

active

08076508

ABSTRACT:
A process for producing acetic acid is disclosed. The process comprises carbonylating methanol to form a reaction mixture and flashing the reaction mixture to form a vapor stream and a liquid stream. The flash tank is equipped with a distillation column. The vapor stream comprises acetic acid and other volatile components but essentially no catalyst. The liquid stream comprises the catalyst and sufficient amounts of water and acetic acid to carry and stabilize the catalyst. The liquid stream is recycled to the carbonylation and the vapor stream is subjected to further separation to produce essentially pure acetic acid.

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White et al, Basic Energy Sciences Advisory Committee Subpanel Workshop Report, Opportunities for Catalysis in the 21st Century, 2002, pp. 1-47.

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