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US 12,122,726 B1Granted
Portland cement clinker manufacture using hyaloclastite or lava and method of making and using same
OwnerRomeo Ilarian Ciupercainventor
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Abstract
The invention comprises a method of making a hydraulic cement clinker. The method comprises delivering a natural calcium-iron-aluminosilicate mineral from one or more of hyaloclastite, lava, scoria, volcanic glass, volcanic ash, or any other mineral of a basaltic or intermediate basaltic chemical composition and blending it in ground form with limestone, calcium oxide or calcium hydroxide. The blended mixture is calcined in a portland cement clinker kiln at an elevated temperature and for a time sufficient to form a hydraulic cement clinker.
Claims19
A method comprising:
- combining limestone and hyaloclastite to form a mixture;
- and
- heating the mixture to a sufficient temperature and for a sufficient time to produce a hydraulic cement clinker.
A method comprising:
- combining limestone and a calcium-iron-aluminosilicate mineral to form a mixture, wherein the calcium-iron-aluminosilicate mineral comprises approximately 30 to approximately 57 percent by weight SiO2, approximately 10 to approximately 18 percent by weight Al2O3, approximately 8 to approximately 18 percent by weight Fe2O3, and approximately 4 to approximately 25 percent by weight CaO;
- and
- heating the mixture to a sufficient temperature and for a sufficient time to produce a hydraulic cement clinker.
Dependencies are inferred from the claim text.