Compressible carbonaceous particulate material and method of making same
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United States of America Patent
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Oct 4, 2016
Grant Date -
Jul 2, 2015
app pub date -
Dec 26, 2013
filing date -
Dec 26, 2013
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Abstract
A carbonaceous particulate material is provided that is characterized by having a reversible volumetric expansion/contraction in fluid media (“VR”) of greater than or equal to (≧)3% between 4,000 psi and 10,000 psi. The porous carbonaceous particulate material of the present disclosure is also characterized by having a true density, (“PT”), of 1.2 g/cc≦PT≦2.0 g/cc, when milled to −200 mesh and has a d50 particle size distribution of about 15 μm. This is the consequence of the instant material exhibiting a high level of closed porosity with very small pores, in contrast with prior art materials that would have a wider range pore sizes for the closed pores.
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