Ceramic proppant with low specific weight

Details Ceramic proppant with low specific weight Ceramic proppant with low specific weight

C - Chemistry, Metallurgy

09

K

C09K 8/80 (2006.01) C04B 35/04 (2006.01) C04B 35/16 (2006.01) C04B 35/20 (2006.01)

Patent

CA 2593594

A precursor composition for the production of granulated ceramic material, particularly for ceramic proppants, comprises 20 to 55% by weight of magnesium orthosilicate, 20 to 35% by weight of MgO, and 2.5 to 11% by weight of FeZO3. The resulting lightweight proppant material shows high mechanical strength. To further decrease the specific density of the proppant, the formation of small pores can be increased by adding 0.3 to 2.4% carbon as a gas-forming agent.

Cette invention concerne une composition précurseur pour la fabrication d'un granulat céramique destiné tout particulièrement à des d'éléments de soutènement en céramique. Cette composition comprend, en poids, de 20 à 55 % d'orthosilicate de magnésium, de 20 à 35 % de MgO, et de 2,5 à 11 % de FeZO3. Le matériau de soutènement de faible poids ainsi obtenu présente une résistance mécanique élevée. Pour diminuer encore la densité spécifique du matériau, on peut accroître la formation de pores de faible taille en ajoutant de 0,3 à 2,4 % de carbone comme agent producteur de gaz.

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