Patents by Inventor Sayanti GHOSH

Sayanti GHOSH 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).

  • Method for the synthesis of a ZSM-22 zeolite, a metal containing zeolite and its application in hydromerization of long chain n-paraffins
    Patent number: 10864507
    Abstract: The present invention provides a process for preparing a zeolite by hydrothermal heating of silica precursor and alumina precursor along with a combination of two structure-directing organic templates, N,N-dimethyl formamide and 1,6-diaminohexane in the presence of an alkali. The use of two structure-directing organic templates, not only reduces the crystallization time but also enables the preparation of more catalytically active ZSM-22 of submicron crystallite size. The present invention also provides a process of preparing a noble metal containing zeolite catalyst for hydroisomerization of long chain n-paraffins.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: December 15, 2020
    Assignee: BHARAT PETROLEUM CORPORATION LIMITED
    Inventors: Ananth Kishore Kumar Sontyana, Kuppusamy Munusamy, Sayanti Ghosh, Shivanand Mukund Pai, Lalit Kumar, Mahesh Wamanrao Kasture, Bharat Lakshman Newalkar
  • METHOD FOR THE SYNTHESIS OF A ZSM-22 ZEOLITE, A METAL CONTAINING ZEOLITE AND ITS APPLICATION IN HYDROMERIZATION OF LONG CHAIN N-PARAFFINS
    Publication number: 20190176137
    Abstract: The present invention provides a process for preparing a zeolite by hydrothermal heating of silica precursor and alumina precursor along with a combination of two structure-directing organic templates, N,N-dimethyl formamide and 1,6-diaminohexane in the presence of an alkali. The use of two structure-directing organic templates, not only reduces the crystallization time but also enables the preparation of more catalytically active ZSM-22 of submicron crystallite size. The present invention also provides a process of preparing a noble metal containing zeolite catalyst for hydroisomerization of long chain n-paraffins.
    Type: Application
    Filed: May 10, 2017
    Publication date: June 13, 2019
    Applicant: BHARAT PETROLEUM CORPORATION LIMITED
    Inventors: Ananth Kishore Kumar SONTYANA, Kuppusamy MUNUSAMY, Sayanti GHOSH, Shivanand Mukund PAI, Lalit KUMAR, Mahesh Wamanrao KASTURE, Bharat Lakshman NEWALKAR