Abstract With the rapid development of the steel industry, every year a large number of steel slag is discharged。 Thus not only caused a lot of waste non- renewable resources, but also seriously polluted the environment。 Therefore, the rational use of steel slag comprehensive utilization will become an urgent need。 But for now, primarily slag is used as a building material, in order to make the slag more fully and more reasonable use, focusing on the characteristics of the slag。
The main extraction of salicylic acid solution on the slag tailings silicate phase were pided into three parts, the first is the effect of the dissolution time of the experiment; the second is the effect of the concentration of salicylic acidexperiments; the third is the impact of different specific surface area of the experiment。 Through the study found, than the surface area of five grams of slag into the post 0。2g / ml solution of salicylic acid in the reaction of silicate slag was found three hours is almost completely reacted and other minerals but little reaction。 In laboratory studies it is one of the anion (HO-C6H4-COO-) and cations (Ca2 +) complexes generated undermine the stability of the silicon oxide。
Key words: silicate; extraction; slag
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