Patents by Inventor Savithri Vijayalakshmi

Savithri Vijayalakshmi 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 preparing silicon from sand
    Patent number: 9938153
    Abstract: Embodiments herein provide a method of preparing Silicon (Si) from sand (SiO2).The method includes preparing sand particles with a size less than 50 microns. Further, the method includes obtaining Magnesium (Mg) particles with a size in range of 105-150 microns. Further, the method includes mixing sand and Mg particles in a predefined ratio to obtain a Sand-Magnesium (SM) mixture. Further, the method includes subjecting the SM mixture to heating at a temperature for a predefined time to obtain Si sample. Further, the method includes identifying un-reacted portion of Mg and sand particles. Furthermore, the method includes purifying byproducts of magnesium as well as un-reacted-magnesium and silica to obtain pure Si.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: April 10, 2018
    Assignee: INDIAN INSTITUTE OF TECHNOLOGY BOMBAY
    Inventors: Mohammad Furquan, Savithri Vijayalakshmi, Sagar Mitra
  • METHOD OF PREPARING SILICON FROM SAND
    Publication number: 20170291821
    Abstract: Embodiments herein provide a method of preparing Silicon (Si) from sand (SiO2).The method includes preparing sand particles with a size less than 50 microns. Further, the method includes obtaining Magnesium (Mg) particles with a size in range of 105-150 microns. Further, the method includes mixing sand and Mg particles in a predefined ratio to obtain a Sand-Magnesium (SM) mixture. Further, the method includes subjecting the SM mixture to heating at a temperature for a predefined time to obtain Si sample. Further, the method includes identifying un-reacted portion of Mg and sand particles. Furthermore, the method includes purifying byproducts of magnesium as well as un-reacted-magnesium and silica to obtain pure Si.
    Type: Application
    Filed: June 2, 2016
    Publication date: October 12, 2017
    Inventors: Mohammad Furquan, Savithri Vijayalakshmi, Sagar Mitra