Nowadays, most of the cement factories still use natural raw material, the quantity of natural limestone consumption is the biggest, which is 1.2 times of clinker output.

The mechanism of forming large caked clinker in the precalciner kiln is discussed with Xinjiang Cement Works as a main object of study.

The effective methods to control the environmental pollution of phosphoric solid waste are described It can be used as mineralizer and admixture of cement, or to produce binder and white cement.