Preparation of Grinding Aid Using Waste Acid Residue from Plasticizer Plant

International Conference on Materials Sciences and Nanomaterials

材料科学;物理学

Li, Lingxiao^1 ; Feng, Yanchao^1 ; Liu, Manchao^1 ; Zhao, Fengqing^1,2

Department of Chemical Engineering, Hebei University of Science and Technology, Shijiazhuang

050018, China^1

Hebei Engineering Research Center of Solid Waste Utilization, Shijiazhuang

050000, China^2

关键词: Granulated blast furnace slag;    Granulation process;    Grinding aidss;    Low costs;    Waste acids;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/230/1/012023/pdf
DOI  :  10.1088/1757-899X/230/1/012023

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The grinding aid for granulated blast-furnace slag were prepared from waste acid residue from plasticizer plant through neutralization, de-methanol and granulation process. In this process, sulfuric acid was transformed into gypsum which has much contribution for grinding effect by combined use with the glycerol and poly glycerin in the waste. Fly ash was used for granulation for the composite grinding aid. Methanol can be recycled in the process. The result showed that the suitable addition of grinding aid is 0.03 % of granulated blast-furnace slag (mass). In this case, the specific surface area is 14% higher than that of the blank. Compared with the common grinding aids, it has excellent performance and low cost.