Development of calcium coke for CaC2 production using calcium carbide slag and coking coal

• 作者: Chuan Wang Dong Wang Guo-yu Qian Jun-hao Liu Jun-qiang Zhang Xiao-dong Jing Xu-zhong Gong Zhi Wang
• 来源期刊: 矿物冶金与材料学报
• 年，卷（期）: 2021,（1）
• 页码范围: 76-87
• 页数: 12页
• 语种: 英文

摘要

A type of calcium coke was developed for use in the oxy-thermal process of calcium carbide production.The calcium coke was pre-pared by the co-pyrolysis of coking coal and calcium carbide slag,which is a solid waste generated from the chlor-alkali industry.The charac-teristics of the calcium cokes under different conditions were analyzed experimentally and theoretically.The results show that the thermal strength of calcium coke increased with the increase in the coking coal proportion,and the waterproof property of calcium coke also increased with increased carbonation time.The calcium coke can increase the contact area of calcium and carbon in the calcium carbide production pro-cess.Furthermore,the pore structure of the calcium coke can enhance the diffusion of gas inside the furnace,thus improving the efficiency of the oxy-thermal technology.