石油焦中硫含量对熔盐氯化过程的影响  

Effect of Sulfur Content in Petroleum Coke on Molten Salt Chlorination Process

作　　者：苗庆东[1] 李开华[1] 李亮[1] 陈爱祥 程晓哲[1] 张瑶[1] 

机构地区：[1]攀钢集团研究院有限公司,钒钛资源综合利用国家重点实验室,四川攀枝花617000 [2]攀钢集团钛业有限责任公司,四川攀枝花617000

出　　处：《有色金属（冶炼部分）》2016年第2期14-17,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家重点基础研究发展计划项目(2013CB632606)

摘　　要：利用HSC软件计算了硫在熔盐氯化过程中发生化学反应的标准吉布斯自由能,研究了石油焦中硫含量对粉磨性质、熔盐氯化过程控制、粗四氯化钛质量和精制除杂的影响。结果表明,硫在熔盐氯化体系中的主要反应产物是SO_2、COS、SO_2Cl_2和SOCl_2;硫含量不会影响熔盐氯化过程连续稳定运行,但会导致熔盐、收尘渣、尾气和粗四氯化钛中硫含量增大;硫在精制过程中难以除去,应选择硫含量低于0.45%的石油焦。Standard Gibbs free energy AGo of sulfur in molten salt chlorination process was calculated by HSC soft. The effects of sulfur content in petroleum coke on grinding, molten salt chlorination process, rough titanium tetrachloride quality and impurity removal were investigated. The results show that the main reaction products in molten salt chlorination system are SO2, COS, SO2 C;2 and SOC;2, which will not affect the continuous and stable operation of molten salt chlorination process, but sulfur content in molten salt, dust slag, tail gas and rough titanium tetrachloride rises. It is difficult to remove sulfur during refining process, and the optimual sulfur content in petroleum coke is 0.45 0/60 below.

关 键 词：石油焦 硫含量 熔盐氯化 四氯化钛 

分 类 号：TF823[冶金工程—有色金属冶金]