Patents by Inventor Fawzi Al-Dulaijan

Fawzi Al-Dulaijan 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 recycling of steel industry iron bearing by-products, pellet obtained in that process and use thereof
    Patent number: 9011573
    Abstract: The present invention relates to a process for the recycling of steel industry iron bearing by-products into a shape suitable for feeding into a direct reduction furnace, comprising the steps of mixing and grinding 50 to 99 wt % of ore and pellet fines and 1 to 50 wt % of slurry, mill scale and/or bag house dust, pelletizing the mixture and indurating the pellets so obtained by heating for 5-60 minutes at a temperature in the range of 1100-1350° C.; and a pellet produced from Iron bearing waste material and having compression strength of at least 2.8 kN and/or a drop number of at least 3.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: April 21, 2015
    Assignee: Saudi Basic Industries Corporation
    Inventors: Syed Niaz Ahsan, Fazal-Ur-Rehman Awan, Ali Al-Hazemi, Fawzi Al-Dulaijan
  • Process for Recycling of Steel Industry Iron Bearing By-Products, Pellet Obtained in that Process and Use Thereof
    Publication number: 20090169413
    Abstract: The present invention relates to a process for the recycling of steel industry iron bearing by-products into a shape suitable for feeding into a direct reduction furnace, comprising the steps of mixing and grinding 50 to 99 wt % of ore and pellet fines and 1 to 50 wt % of slurry, mill scale and/or bag house dust, pelletizing the mixture and indurating the pellets so obtained by heating for 5-60 minutes at a temperature in the range of 1100-1350° C.; and a pellet produced from Iron bearing waste material and having compression strength of at least 2.8 kN and/or a drop number of at least 3.
    Type: Application
    Filed: May 24, 2007
    Publication date: July 2, 2009
    Inventors: Syed Niaz Ahsan, Fazal-Ur-Rehman Awan, Ali Al-Hazemi, Fawzi Al-Dulaijan