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Ceramic proppant with low specific weight

  • US 20080070774A1
  • Filed: 06/29/2007
  • Published: 03/20/2008
  • Est. Priority Date: 08/04/2006
  • Status: Active Grant
First Claim
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1. A precursor composition for the production of granulated ceramic material, particularly for ceramic proppants, comprising 20 to 55% by weight of magnesium orthosilicate, 20 to 35% by weight of MgO, 2.5 to 11% by weight of Fe2O3, and a glass forming component containing SiO2, particularly quartz or feldspar.

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