Preparation of cyclohexane dicarboxylic acids

Cyclohexane dicarboxylic acids are prepared by hydrogenating phthalic acids in presence of a rhodium catalyst wherein a portion of the product stream is isolated and recycled to the reactor.

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Bibliographische Detailangaben
Hauptverfasser: LILLWITZ, LAWRENCE D
Format: Patent
Sprache:eng
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Zusammenfassung:Cyclohexane dicarboxylic acids are prepared by hydrogenating phthalic acids in presence of a rhodium catalyst wherein a portion of the product stream is isolated and recycled to the reactor.