Patents by Inventor Sandeep P. Mohandas

Sandeep P. Mohandas 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 using ion exchange resins for the treatment of wastewater emanating from purified terephthalic acid production
    Patent number: 10919787
    Abstract: A method for recovering water from purified terephthalic acid production wastewater includes: producing purified terephthalic acid comprising purified terephthalic acid feedstock and wastewater comprising impurities; separating the purified terephthalic acid feedstock from the wastewater comprising impurities; transferring the wastewater to a tank; adjusting the p H of the wastewater with a basic solution; adjusting the temperature of the wastewater; passing the wastewater to a column; contacting the wastewater with an ion exchange resin to remove the impurities; and recovering the water depleted of impurities.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: February 16, 2021
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Roy Van Lier, Syed Azhar Hashmi, Vadlamani Prasad Rao Chaitanya, Sandeep P. Mohandas, Muhammad Mosleh Al-Subhi, Lee Sangjoo, Hasan Mohammed Rashad Haneef
  • PROCESS USING ION EXCHANGE RESINS FOR THE TREATMENT OF WASTEWATER EMANATING FROM PURIFIED TEREPHTHALIC ACID PRODUCTION
    Publication number: 20180346350
    Abstract: A method for recovering water from purified terephthalic acid production wastewater includes: producing purified terephthalic acid comprising purified terephthalic acid feedstock and wastewater comprising impurities; separating the purified terephthalic acid feedstock from the wastewater comprising impurities; transferring the wastewater to a tank; adjusting the p H of the wastewater with a basic solution; adjusting the temperature of the wastewater; passing the wastewater to a column; contacting the wastewater with an ion exchange resin to remove the impurities; and recovering the water depleted of impurities.
    Type: Application
    Filed: November 8, 2016
    Publication date: December 6, 2018
    Inventors: Roy Van Lier, Syed Azhar Hashmi, Vadlamani Prasad Rao Chaitanya, Sandeep P. Mohandas, Muhammad Mosleh Al-Subhi, Lee Sangjoo, Hasan Mohammed Rashad Haneef