PRODUCTION OF AROMATIC CARBOXYLIC ACIDS

Disclosed are processes and systems for the production of aromatic carboxylic acids, such as purified terephthalic acid. The processes result in reduced volatile aromatic monocarboxylic acid contamination throughout various stages of the PTA process when compared to known processes. This permits the...

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Bibliographische Detailangaben
1. Verfasser:	URE, ALAN, MACPHERSON
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY ORGANIC CHEMISTRY TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	Disclosed are processes and systems for the production of aromatic carboxylic acids, such as purified terephthalic acid. The processes result in reduced volatile aromatic monocarboxylic acid contamination throughout various stages of the PTA process when compared to known processes. This permits the various effluent streams to be recycled back to several stages in the production process, which allows for the efficient production of pure PTA at a lower cost. La présente invention concerne des procédés et des systèmes de production d'acides carboxyliques aromatiques, tels que l'acide téréphtalique purifié (PTA). Les procédés aboutissent à une diminution de la contamination de l'acide monocarboxylique aromatique volatile au cours des diverses étapes du procédé de production de PTA par rapport à d'autres procédés connus. Ceci permet le recyclage des divers courants effluents vers les différentes étapes du procédé de production, ce qui permet la production efficace de PTA pur à un coût moindre.