Eastman Chemical Company

Grupo Petrotemex S.a. De C.v.

Gropo Petrotemex, S.a. De C.v.

Marcel De Vreede

Alan George Wonders

Lee R Partin

Wayne Scott Strasser

Robert Lin

Puneet Gupta

Howard Wood Jenkins, Jr

Martin De Boer

J Thomas Tidwell

Johannes Wilhelmus Sluijmers

Kenny Randolph Parker

Charles Edwan Sumner, Jr

Philip Edward Gibson

Brent Alan Tennant

Ronald Buford Sheppard

Gino Georges Lavoie

Thomas Earl Woodruff

Raymond Elbert Fogle, Iii

Bryan Wayne Davenport

Harold David Miller, Jr

Ardie Heijblom

Lee Reynolds Partin

Arnoldus Leunis Jan Heijblom

James Thomas Tidwell

Howard Wood Jenkins

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.

Optimized liquid-phase oxidation

Disclosed is an optimized process and apparatus for more efficiently producing aromatic dicarboxylic acids (e.g., terephthalic acid). In one embodiment the process/apparatus reduces costs by recovering and purifying residual terephthalic acid present in the liquid phase of an initial oxidation slurry. In another embodiment the process apparatus reduces costs associated with hydrogenation by forming a final composite product containing unhydrogenated acid particles.

Optimized production of aromatic dicarboxylic acids

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.

Process to produce an enrichment feed

Growing community of inventors

Barendrecht, Netherlands

Marcel De Vreede