US5074475A - Method for improving bulk density and ...
US5074475A US07/499,034 US49903490A US5074475A US 5074475 A US5074475 A US 5074475A US 49903490 A US49903490 A US 49903490A US 5074475 A US5074475 A US 5074475A Authority US United States Prior art keywords kaolin clay calcined bulk density slurry clay Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.