0103% through powder ore wet preconcentrating technique and these indexes are low or approaching the grade of wet concentrating tailings, and they can be thrown off as qualified tailings.

The powder ore is more than 80% and stability of the ore body is poor.

Energy saving effects of applied pressure filtration for gained powdered ore under the well;

Programs were put forward according to the study on the nature of synthetical powder mineral at Huidong: + 0.

The phases and physical and chemical properties of ore fines imported from Sishen Mine of KUMBA Corp,of the Republic of South Africa and its sintering property and metallurgical properties are analyzed,studied and compared with other imported ore fines.

The influnce of proportioning variance of sintering pulverized ore in Pan Gang on sintering producing has been summarized and proper proportioning of pulverized ore has also been explored.

Studies on hydration mechanism of slag powder cement;

With the development of cementitious material,slag powder is more used as high-performance admixture in cement and concrete.

The relationship between the slag powder content and the mortar strength of slagcement system (expression in activity index) was studied.