Nova Patents
ATE482178T1

Optimized liquid-phase oxidation

Abstract

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.

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Projected expiry passed 29 August 2025, 1.1 years ago.

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60673904United States of AmericaP
63149404United States of AmericaP
15447805United States of AmericaA
2005030854United States of AmericaW

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DE602005023744D1GermanyD1
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CN101010278BChinaB
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EP1784378B1European Patent Office (EPO)B1
PL1784378T3PolandT3
EP1786753B1European Patent Office (EPO)B1
ES2551479T3SpainT3
CN102701961BChinaB
PT1786753EPortugalE
EP1890991B1European Patent Office (EPO)B1
BRPI0612252B1BrazilB1
PL1786753T3PolandT3
ES2560243T3SpainT3
PL1890991T3PolandT3
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MY163130AMalaysiaA
EP1791802B1European Patent Office (EPO)B1
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