Hydrolyzed chlorosilicon by-product addition to cement
AssigneeDow Corning Corporation
InventorsTimothy R. Bunce, Ajay K. Dhaul, Roland L. Halm, Richard G. Johnson, Ronald E. Lund
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Abstract
The present invention is an improved process for preparing a portland cement composition where the process comprises heat calcining a mixture comprising a source of calcium and a source of silicon to form clinker. The improvement comprises providing to the process a silicon containing product resulting from the hydrolysis of chlorosilicon by-product as at least a portion of the source of silicon.
Claims14
In a process for preparing a portland cement composition where the process comprises heating a mixture comprising a source of calcium and a source of silicon, the improvement comprising providing to the process a silicon containing product resulting from the hydrolysis of chlorosilicon by-product as at least a portion of the source of silicon.
A process for preparing clinker suitable for use in a portland cement composition, the process comprising heat calcining a mixture comprising an oxide of calcium, an oxide of aluminum, an oxide of iron, and oxide of silicon, and a silicon containing product resulting from the hydrolysis of chlorosilicon by-product, where the silicon containing product comprises about three weight percent to 100 weight percent of silicon added to the process.
In a process for preparing a portland cement composition where the process comprises heating a mixture comprising a source of calcium and a source of silicon, the improvement comprising providing to the process as a source of silicon a silicon containing product resulting from the hydrolysis of chlorosilicon by-product where the silicon containing product comprises about three weight percent to 100 weight percent of silicon added to the process.
Dependencies are inferred from the claim text.