Elektrolyse der 2,4-Dimethyl-benzoesäure zusammen mit ihrem Natriumsalz in Methylalkohol
作者:Fr. Fichter、Hans Stenzl、Erwin Beglinger
DOI:10.1002/hlca.19380210151
日期:——
Die Elektrolyseder2,4-Dimethyl-benzoesäure neben ihremNatriumsalz in absolut methylalkoholischer Lösung verläuft der Hauptsache nach als Oxydation
2,4-二甲基-苯甲酰苯胺在绝对甲基醇中的钠盐
Optimized liquid-phase oxidation
申请人:Wonders George Alan
公开号:US20060047145A1
公开(公告)日:2006-03-02
Disclosed is an optimized process and apparatus for more efficiently and economically carrying out the liquid-phase oxidation of an oxidizable compound. Such liquid-phase oxidation is carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures. When the oxidized compound is para-xylene and the product from the oxidation reaction is crude terephthalic acid (CTA), such CTA product can be purified and separated by more economical techniques than could be employed if the CTA were formed by a conventional high-temperature oxidation process.
Esterification of an exchange solvent enriched composition
申请人:Parker Randolph Kenny
公开号:US20060264664A1
公开(公告)日:2006-11-23
A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.
A process is provided for producing an enriched carboxylic acid compositions produced by contacting composition comprising a carboxylic acid with an enrichment feed in an enrichment zone to form an enriched carboxylic acid composition. This invention also relates to a process and the resulting compositions for removing catalyst from a carboxylic acid composition to produce a post catalyst removal composition.