Patents by Inventor Jignesh Jasvantrai Shukla

Jignesh Jasvantrai Shukla 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 the preparation of common salt of high purity from brines in solar salt pans
    Patent number: 8021442
    Abstract: The process of the invention is an improvement over the existing process of producing salt of high purity from alum-treated brine disclosed recently in the prior art. More particularly, the invention rectifies the ratio of Ca2+ to Mg2+ from a value <1 to a value in the range of 2-3 desired by chlor-alkali and soda ash industries. The improved process involves the adjustment of pH of clarified brine with aqueous HCl so as to carry out salt crystallization at a pH of 6.5 instead of at the natural pH of 7. The pH adjustment reduces the Mg2+ impurity in salt while slightly raising the Ca2+ impurity in the salt and thereby achieving the desired ratio.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: September 20, 2011
    Assignee: Council of Scientific & Industrial Research
    Inventors: Arvind Kumar, Indrajit Mukhopadhyay, Pushpito Kumar Ghosh, Vadakke Puthoor Mohandas, Jignesh Jasvantrai Shukla, Rahul Jasvantrai Sanghavi
  • Process for the Preparation of Common Salt of High Purity from Brines in Solar Salt Pans
    Publication number: 20090175781
    Abstract: The process of the invention is an improvement over the existing process of producing salt of high purity from alum-treated brine disclosed recently in the prior art. More particularly, the invention rectifies the ratio of Ca2+ to Mg2+ from a value <1 to a value in the range of 2-3 desired by chlor-alkali and soda ash industries. The improved process involves the adjustment of pH of clarified brine with aqueous HCl so as to carry out salt crystallization at a pH of 6.5 instead of at the natural pH of 7. The pH adjustment reduces the Mg2+ impurity in salt while slightly raising the Ca2+ impurity in the salt and thereby achieving the desired ratio.
    Type: Application
    Filed: September 29, 2008
    Publication date: July 9, 2009
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Arvind Kumar, Indrajit Mukhopadhyay, Pushpito Kumar Ghosh, Vadakke Puthoor Mohandas, Jignesh Jasvantrai Shukla, Rahul Jasvantrai Sanghavi