Patents Assigned to Coouncil of Scientific and Industrial Research
  • Process for the production of a fly ash slurry
    Patent number: 6419620
    Abstract: The present invention describes an improved method for forming fly ash slurry by mixing fly ash and water with an additive containing 0.5-2 wt % ammonium salt of humic acid and 0.03 to 0.05 wt % tannin extract. The product slurry does not require large amount of water for transport to storage space due to its enhanced viscosity and stability.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: July 16, 2002
    Assignee: Coouncil of Scientific and Industrial Research
    Inventors: Sukuru Ramakrishna Rao, Swapan Kumar Ghosh, Sibcndra Kumar Basu, Barun Kumar Mall, Shreekant Verma, Gulab Singh, Satinath Mazumdar