Processes for separating dimethyl biphenyl isomers using zeolite adsorbents

US10550050B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Changyub Paek · Bound Brook Junction, US
• Michael P. Lanci · Flemington, US
• Randall D. Partridge · Califon, US
• Allen W. Burton · Richmond, US
• Carla S. Pereira · Somerville, US
• Benjamin A. McCool · Annandale, US

Key dates

• Filing date: Feb 1, 2018
• Grant date: Feb 4, 2020
• Expiry date: Feb 13, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C15/14
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a process for separating one or more 3,3′-, 3,4′- and 4,4′-dimethyl biphenyl isomers, a feed comprising the isomers is contacted with a zeolite adsorbent which contains one or more metal cations in the +1 or +2 oxidation states. Separation processes for each of the 3,3′-, 3,4′- and 4,4′-dimethyl biphenyl isomers is provided.