Studies on the Solid State Reaction Kinetices. Mullitation of Domestic Kaolin and ${\alpha}$ - $Al_2O_3$

Purified kaolin and - particiles which are less then 10 in diameter were collected through sedimentation and mixed in the ratio of 3A-2S and then its reaction rates were measured at temperatures 1350 to 1450C. The kinetic data were correlated with Jander's equation, but not with modified Jander's equation. With mineralizer added, yield increased about 15% and activation energy decreased from 142kcal/mol to 90kcal/mol.