Patents by Inventor Nitish Mittal

Nitish Mittal 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).

  • Calcination of microporous molecular sieve catalysts
    Patent number: 11701645
    Abstract: A catalyst comprising a microporous crystalline metallosilicate having a Constraint Index of 12, or 10, or 8, or 6 or less, a binder, a Group 1 alkali metal or a compound thereof and/or a Group 2 alkaline earth metal or a compound thereof, a Group 10 metal or a compound thereof, and, optionally, a Group 11 metal or a compound thereof; wherein the catalyst is calcined in a first calcining step before the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof; and wherein the first calcining step includes heating the catalyst to first temperatures of greater than 500° C.; and wherein the catalyst is calcined in a second calcining step after the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof wherein the second calcining step includes heating the catalyst to temperatures of greater than 400° C.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: July 18, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Larry L. Iaccino, Jeremy W. Bedard, Xiaoying Bao, Andrew P. Palermo, Nitish Mittal, Maria Milina, Doron Levin, William R. Gunther, Wenyih F. Lai, Tilman W. Beutel
  • Calcination of Microporous Molecular Sieve Catalysts
    Publication number: 20210394163
    Abstract: A catalyst comprising a microporous crystalline metallosilicate having a Constraint Index of 12, or 10, or 8, or 6 or less, a binder, a Group 1 alkali metal or a compound thereof and/or a Group 2 alkaline earth metal or a compound thereof, a Group 10 metal or a compound thereof, and, optionally, a Group 11 metal or a compound thereof; wherein the catalyst is calcined in a first calcining step before the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof; and wherein the first calcining step includes heating the catalyst to first temperatures of greater than 500° C.; and wherein the catalyst is calcined in a second calcining step after the addition of the Group 10 metal or compound thereof and optionally the Group 11 metal or compound thereof wherein the second calcining step includes heating the catalyst to temperatures of greater than 400° C.
    Type: Application
    Filed: October 10, 2019
    Publication date: December 23, 2021
    Inventors: Larry L. Iaccino, Jeremy W. Bedard, Xiaoying Bao, Andrew P. Palermo, Nitish Mittal, Maria Milina, Doron Levin, William R. Gunther, Wenyih F. Lai, Tilman W. Beutel
  • Group 1 Metal Ion Content of Microporous Molecular Sieve Catalysts
    Publication number: 20210370276
    Abstract: A catalyst comprising a microporous crystalline aluminosilicate having a Constraint Index less than or equal to 12, a Group 1 alkali metal or a compound thereof and/or a Group 2 alkaline earth metal or a compound thereof, a Group 10 metal or a compound thereof, and optionally a Group 11 metal or a compound thereof; wherein the total amount of Group 1 and/or Group 2 metal is present at a ratio that is optimized for the desirable chemical conversion process.
    Type: Application
    Filed: October 10, 2019
    Publication date: December 2, 2021
    Inventors: Larry L. Iaccino, Xiaoying Bao, Nitish Mittal, Doron Levin, Wenyih F. Lai, Jocelyn A. Gilcrest