Steel slag is hydraulic cementing material, which is mainly applicable approach to the production of cement, admixture of high performance concrete, road engineering. But as a result of hydration expansion of the free calcium oxide and free magnesium oxide and dicalcium silicate morphological changes which is contained in slag cause poor stability of steel slag used in engineering, the steel slag utilization is very low. Therefore, the key technology of steel slag treatment process is to improve the stability of steel slag. Steel slag is alkaline slag, with lower temperature, the viscosity increases sharply, the liquidity variation, it is one of the important factors affect the steel slag processing, According to the need for different liquidity of steel slag to choose the corresponding steel slag treatment technology. Tank-type hot disintegrating, Rotary cylinder technology processing available to small particle size, good steel slag separation, active promotion of slags, conducive to the comprehensive utilization of steel slag.

In order to utilize the converter slag that treated by the method of hot braised comprehensively. Using Jiugang hot braised slag as raw material, to determine the chemical composition of the slag with the semi-quantitative analysis and a number of chemical analytical methods. Using X-ray diffraction, optical microscopy, scanning electron microscopy and energy dispersive spectrometer to analysis the hot braised slag phase and iron phase. Also doing the measurement and analysis to the particle size of the slag, compressive strength and the grinding fineness. It was obtained the conclusion by the comprehensive analysis of hot braised slag that the hot braised slag can be returned to sintering process as solvent and it can also used in the construction、buliding materials and road engineering industry. It is a good suggestion that grounding the slag into a fine powder due to the poor effect of abrasion.