Sintered low density gas and oil well proppants from a low...

E - Fixed Constructions – 21 – B

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E21B 43/267 (2006.01) B01J 2/00 (2006.01) B01J 2/10 (2006.01) C09K 8/80 (2006.01)

Patent

CA 1228226

- 10 - ABSTRACT A solid granular propping agent is disclosed having a Krumbein number of greater than 0.8, and containing granules between 0.2 and 1.7mm in diameter, said granules being made from an unblended claim containing from 16 to 19% of silica, less than 0.35% alkali and alkaline earth metal oxides, and being fired at a time and temperature whereby the product contains a major mullite phase and a minor alpha alumina phase.

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