Preparation of (meth)acrylic acid

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

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562532, 562538, 568470, 568492, C07C 5142, C07C 5116, C07C 5121

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active

060517360

ABSTRACT:
The invention is directed toward preparation of (meth)acrylic acid, comprising condensation of a gas comprising (meth)acrylic acid, absorption with water, and extraction with an aqueous solution forming a miscibility gap.

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patent: 5248819 (1993-09-01), Matsumoto et al.
patent: 5831124 (1998-11-01), Machhammer et al.

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