Patents by Inventor Vivek SHANKARANARAYANAN

Vivek SHANKARANARAYANAN 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 oxidation of alkyl aromatic compound to aromatic carboxylic acid
    Patent number: 9932287
    Abstract: The present disclosure provides a process for oxidation of p-xylene to terephthalic acid. Recovery of fluid medium and valuable chemicals in carried out using p-xylene as fluid medium which is also the starting material. The recovered stream containing p-xylene, acetic acid and other valuable chemicals is recycled to the oxidation step. The process disclosed in the present disclosure is energy efficient and cost effective.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: April 3, 2018
    Assignee: Reliance Industries Limited
    Inventors: Vivek Shankaranarayanan, Suresh Shantilal Jain, Pavankumar Aduri, Rajesh Ratnakar Terdalkar, Nitin Haribhau Patil, Parasuveera Uppara
  • Catalyst recovery and recycling process during aromatic carboxylic acid production
    Patent number: 9776943
    Abstract: The present disclosure provides a process for recovering and recycling a catalyst from the mother liquor generated during the production of aromatic carboxylic acids. The process comprises treating the mother liquor with an alkyl aromatic compound and further treating the first aqueous layer obtained with an ionic liquid to obtain a catalyst rich aqueous mixture. The catalyst rich aqueous mixture is recycled to the oxidation reactor.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: October 3, 2017
    Assignee: Reliance Industries Limited
    Inventors: Suresh Shantilal Jain, Pavankumar Aduri, Vivek Shankaranarayanan, Parasuveera Uppara
  • A CATALYST RECOVERY AND RECYCLING PROCESS DURING AROMATIC CARBOXYLIC ACID PRODUCTION
    Publication number: 20170166508
    Abstract: The present disclosure provides a process for recovering and recycling a catalyst from the mother liquor generated during the production of aromatic carboxylic acids. The process comprises treating the mother liquor with an alkyl aromatic compound and further treating the first aqueous layer obtained with an ionic liquid to obtain a catalyst rich aqueous mixture. The catalyst rich aqueous mixture is recycled to the oxidation reactor.
    Type: Application
    Filed: February 19, 2015
    Publication date: June 15, 2017
    Applicant: Reliance Industries Limited
    Inventors: Suresh Shantilal Jain, Pavankumar Aduri, Vivek Shankaranarayanan, Parasuveera Uppara
  • PROCESS FOR OXIDATION OF ALKYL AROMATIC COMPOUND TO AROMATIC CARBOXYLIC ACID
    Publication number: 20160347700
    Abstract: The present disclosure provides a process for oxidation of p-xylene to terephalic acid. Recovery of fluid medium and valuable chemicals in carried out using p-xylene as fluid medium which is also the starting material. The recovered stream containing p-xylene, acetic acid and other valuable chemicals is recycled to the oxidation step. The process disclosed in the present disclosure is energy efficinnt and cost effective.
    Type: Application
    Filed: February 19, 2015
    Publication date: December 1, 2016
    Applicant: RELIANCE INDUSTRIES LIMITED
    Inventors: Vivek SHANKARANARAYANAN, Suresh Shantilal JAIN, Pavankumar ADURI, Rajesh Ratnakar TERDALKAR, Nitin Haribhau PATIL, Parasuveera UPPARA