Cementitious material production from non-limestone material
AssigneeBrimstone Energy Inc.
InventorsCody FINKE, Michael J. DRY, Vivek KASHYAP, Evody Tshijik Karumb, Nydra Harvey-Costello, James Alexis BRESSON, Margaret Josephine Keller, Hugo Francois LEANDRI
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Abstract
Methods and composition are provided for deriving cement and/or supplementary cementitious materials, such as pozzolans, from one or more non-limestone materials, such as one or more non-limestone rocks and/or minerals. The non-limestone materials, e.g., non-limestone rocks and/or minerals, are processed in a manner that a desired product, e.g., cement and/or supplementary cementitious material, is produced.
Claims26
1-161. (canceled)
A method comprising
- (i) processing a non-limestone material comprising calcium and iron to provide particles in a desired size range;
- (ii) treating the particles by magnetic separation to remove iron-containing materials and produce particles depleted in iron-containing materials;
- (iii) contacting the depleted particles with a first acid to produce a calcium-depleted solid fraction and a first liquid fraction comprising calcium;
- and
- (iv) producing a cement material from the liquid fraction.
An apparatus for treating non-limestone materials comprising calcium and iron, wherein the apparatus comprises
- (i) a first processor configured to treat the non-limestone materials to produce particles in a desired size range;
- operably connected to
- (ii) a second processor configured to treat the particles by magnetic separation to remove iron-containing materials to produce particles depleted in iron-containing materials;
- operably connected to
- (ii) a third processor configured to form a cement material from the depleted particles.
Dependencies are inferred from the claim text.