Patents by Inventor Krishna Deo SHARMA

Krishna Deo SHARMA 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).

  • Treatment of antimony bearing residues for production of potassium antimony tartrate
    Patent number: 10919924
    Abstract: A method for production of potassium antimony tartrate by utilizing one or more residues bearing antimony includes the step of leaching of the one or more residues bearing antimony for a first pre-determined time interval in each of one or more jacketed reactors. In addition, the method includes filtering obtained slurry from a leached solution of the one or more residues products bearing antimony to obtain an aqueous solution and a solid residue. The method also includes crystallizing the obtained aqueous solution to form one or more crystals of the potassium antimony tartrate in a jacketed crystallizer. The antimony contained in the one or more residues is in an oxidic form and the oxidic form of the antimony is more than 20%. The solid residue is a leached cake.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: February 16, 2021
    Assignee: Hindustan Zinc Limited
    Inventors: Ashish Kumar, Sheeba Mashruwala, Sundar Saran Sombhatla, Kiran Kumar Rokkam, Krishna Deo Sharma
  • TREATMENT OF ANTIMONY BEARING RESIDUES FOR PRODUCTION OF POTASSIUM ANTIMONY TARTRATE
    Publication number: 20170197999
    Abstract: A method for production of potassium antimony tartrate by utilizing one or more residues bearing antimony includes the step of leaching of the one or more residues bearing antimony for a first pre-determined time interval in each of one or more jacketed reactors. In addition, the method includes filtering obtained slurry from a leached solution of the one or more residues products bearing antimony to obtain an aqueous solution and a solid residue. The method also includes crystallizing the obtained aqueous solution to form one or more crystals of the potassium antimony tartrate in a jacketed crystallizer. The antimony contained in the one or more residues is in an oxidic form and the oxidic form of the antimony is more than 20%. The solid residue is a leached cake.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 13, 2017
    Inventors: Ashish KUMAR, Sheeba MASHRUWALA, Sundar Saran SOMBHATLA, Kiran Kumar ROKKAM, Krishna Deo SHARMA