Patents by Inventor Sumant PHADTARE

Sumant PHADTARE 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 OF REMOVING FLUORIDE IMPURITIES FROM TRONA AND PREPARATION OF SODIUM BICARBONATE
    Publication number: 20090238740
    Abstract: The invention relates to a method of preparing sodium bicarbonate from trona containing sodium fluoride as an impurity comprising preparing a saturated solution of trona and filtering the trona solution to remove insoluble impurities; introducing carbon dioxide to the trona solution till the pH of the solution reaches the range of 7.5 to 8.75 and sodium carbonate in the trona solution is converted to sodium bicarbonate that precipitates; and recovering the precipitated sodium bicarbonate from the trona solution.
    Type: Application
    Filed: March 17, 2009
    Publication date: September 24, 2009
    Applicant: TATA CHEMICALS LIMITED
    Inventors: Soumen SENSARMA, Sumant PHADTARE, Murali SASTRY