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:
Jun. 28, 2022
Filed:
Dec. 09, 2019
Reliance Industries Limited, Mumbai, IN;
Viswanath Kotra, Palava, IN;
Pavankumar Aduri, Palava, IN;
Vibhuti Dhukande, Pune, IN;
Mangesh Raghunath Sakhalkar, Panvel, IN;
Uday Meghashyam Ratnaparkhi, Navi Mumbai, IN;
Rahul Kumbhar, Pune, IN;
Suresh Iyengar, Navi Mumbai, IN;
Rahul Mahadeo Dhawade, Nagpur, IN;
Romal Chafle, Wardha, IN;
Parasuveera Uppara, Navi Mumbai, IN;
Gordhan Das Goyal, Mumbai, IN;
RELIANCE INDUSTRIES LIMITED, Mumbai, IN;
Abstract
The present disclosure relates to a process for preparing linear alkyl benzne (LAB). The process comprises alkylation of benzene with an alkylating agent in the presence of an ionic liquid to obtain a first product mixture comprising a first organic phase and a first aqueous phase comprising first partially spent ionic liquid. The first organic phase is deacidified and fractionally distilled to obtain a fraction comprising LAB and a fraction comprising HAB. The fraction comprising HAB is transalkylated with benzene in the presence of the ionic liquid to obtain a second product mixture comprising a second organic phase comprising LAB and a second aqueous phase comprising second partially spent ionic liquid. The partially spent ionic liquids are regenerated, and reused in the steps of alkylation or transalkylation for at least 6 cycles.