Patents by Inventor Romal Chafle

Romal Chafle has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for preparing linear alkyl benzene
    Patent number: 11370723
    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.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: June 28, 2022
    Assignee: RELIANCE INDUSTRIES LIMITED
    Inventors: Viswanath Kotra, Pavankumar Aduri, Vibhuti Dhukande, Mangesh Raghunath Sakhalkar, Uday Meghashyam Ratnaparkhi, Rahul Kumbhar, Suresh Iyengar, Rahul Mahadeo Dhawade, Romal Chafle, Parasuveera Uppara, Gordhan Das Goyal
  • PROCESS FOR PREPARING LINEAR ALKYL BENZENE
    Publication number: 20220033323
    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.
    Type: Application
    Filed: December 9, 2019
    Publication date: February 3, 2022
    Applicant: Reliance Industries Limited
    Inventors: Viswanath Kotra, Pavankumar Aduri, Vibhuti Dhukande, Mangesh Raghunath Sakhalkar, Uday Meghashyam Ratnaparkhi, Rahul Kumbhar, Suresh Iyengar, Rahul Mahadeo Dhawade, Romal Chafle, Parasuveera Uppara, Gordhan Das Goyal