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回顾了攀钢高炉渣综合利用多年来的攻关工作,介绍了高钛型高炉渣“高温碳化—低温氯化”制取四氯化钛工艺的实验室和产业化技术研究进展情况。目前,采用“高温碳化—低温氯化”工艺建成的10 kt/a四氯化钛生产线已具备连续生产的能力,其中,高温碳化中试线稳定试验和试生产期间高炉渣中二氧化钛的平均碳化率为88.20%,低温氯化中试线碳化渣中碳化钛的平均氯化率为85.35%,“高温碳化—低温氯化”全流程工艺高炉渣提钛总回收率达到75.45%。试验结果表明,该工艺技术可行,经济和社会效益显著,具有良好的产业化前景。
The research work of comprehensive utilization of blast furnace slag in Panzhihua Iron and Steel (Group) Co., Ltd. Has been reviewed. The research progress of laboratory and industrial technology for producing titanium tetrachloride from high - titanium blast furnace slag “high temperature carbonization - low temperature chlorination” was introduced. At present, the 10 kt / a titanium tetrachloride production line built with the “high-temperature carbonization-low-temperature chlorination” process has been capable of continuous production. Among them, the stability test of high-temperature carbonization pilot line and the test of titanium dioxide The average carbonization rate was 88.20%. The average chlorination rate of titanium carbide in low temperature chlorination pilot line carbonization was 85.35%. The total recovery of titanium from blast furnace slag was 75.45% in the whole process of “high temperature carbonization-low temperature chlorination” . The test results show that the process technology is feasible, significant economic and social benefits, with good industrialization prospects.