The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2017
Filed:
Dec. 21, 2015
Exxonmobil Chemical Patents Inc.;
Michael Salciccioli, Houston, TX (US);
Jihad M. Dakka, Whitehouse Station, NJ (US);
Neeraj Sangar, League City, TX (US);
Lorenzo C. DeCaul, Langhorne, PA (US);
Ali A. Kheir, Sugar Land, TX (US);
ExxonMobil Chemical Patents Inc., Baytown, TX (US);
Abstract
In a process for producing biphenyl compounds, a Caromatic hydrocarbon may be hydroalkylated to give Ccycloalkylaromatic compounds and byproduct Csaturated cyclic hydrocarbons. The Ccycloalkylaromatic compounds are dehydrogenated to provide the biphenyl compounds. The Csaturated cyclic hydrocarbons may also be dehydrogenated back to the corresponding Caromatic hydrocarbon, which may be recycled to provide additional feed. Although both the intermediate Ccycloalkylaromatic compounds and the byproduct Csaturated cyclic hydrocarbons should be dehydrogenated, at least part of the dehydrogenation of the Csaturated cyclic hydrocarbons should take place in the absence of Cor greater hydrocarbons. Thus, dehydrogenation of the byproduct Csaturated cyclic hydrocarbons should take place at least in part separately from dehydrogenation of the Ccycloalkylaromatic compounds.