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US 4,161,411 AGranted
Cement dust briquettes and process of production thereof
OwnerNancy J. Sell, June E. Doyeninventors
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Abstract
Cement dust briquettes or pellets and process for producing same by compacting cement dust at compacting pressures sufficient to form briquettes or pellets having a high crushing strength and simultaneously with such formation encapsulating said briquettes or pellets with a mineral oil or the like.
Claims15
A process for producing kiln cement dust molded briquettes of high crushing strength and effective for use as a partial feed in cement making processes, comprising the steps of:
- (a) applying a mineral oil to the inner surfaces of cavity molds;
- (b) substantially filling said cavity molds with kiln cement dust collected from a cement kiln and being essentially free from extraneous binders;
- and
- (c) compacting said kiln cement dust between said mold surfaces under a pressure of at least 20,000 psi to thereby form mineral oil coated kiln cement dust molded briquettes.
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Dependencies are inferred from the claim text.