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:
Jan. 10, 2023
Filed:
Jan. 28, 2022
Indian Oil Corporation Limited, Mumbai, IN;
Tanmay Mandal, Faridabad, IN;
Krishna Vankudoth, Faridabad, IN;
Manisha Saraswat, Faridabad, IN;
Ajay Kumar Arora, Faridabad, IN;
Vivekanand Kagdiyal, Faridabad, IN;
Deepak Saxena, Faridabad, IN;
Sankara Sri Venkata Ramakumar, Faridabad, IN;
INDIAN OIL CORPORATION LIMITED, Mumbai, IN;
Abstract
The present invention provides a one-pot process of synthesis of phenyl naphthalene compounds that are employed as heat transfer agents. More particularly, the present invention provides a process of preparation of 1-phenylnaphthalene and 2-methyl-1-phenylnaphthalene using refinery spent catalyst. These molecules are known for application as synthetic heat transfer fluids that deliver outstanding performance and thermal stability at continuously high operating temperatures. The reaction is carried out in aqueous medium using a spent catalyst which is a palladium based charcoal catalyst as obtained from various refinery processes. Further, the present invention provides a heat resistant formulation using the synthesized polyhydrocarbons, wherein the formulation is optimized with a free radical scavenger.