精馏法分离四氯化钛中有机杂质的模拟  

Simulation on separation of organic impurities in titanium tetrachloride

作　　者：黄森虹 李良 Huang Senhong;Li Liang(State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization,Pangang Group Research Institute Co.,Ltd.,Panzhihua 617000,Sichuan,China)

机构地区：[1]钒钛资源综合利用国家重点实验室,攀钢集团攀枝花钢铁研究院有限公司,四川攀枝花617000

出　　处：《钢铁钒钛》2021年第3期53-57,共5页Iron Steel Vanadium Titanium

基　　金：国家重点研发计划项目(2018YFC1900500)。

摘　　要：针对有机物精制除钒工艺生产的四氯化钛含有机杂质的现状,采用Aspen P1us模拟软件计算了除钒后四氯化钛中有机杂质的精馏分离过程,并结合灵敏度分析方法对精馏塔的设计参数进行了优化。结果表明,精馏塔的最佳设计参数如下:回流比为100,塔板数为68块,进料位置为第24块塔板,塔顶温度为64.38℃,塔底温度为155.06℃,塔顶馏出量为223 kg/h。此操作条件下,精馏后四氯化钛质量纯度可达99.9967%,收率达到99.0%以上,有机杂质和SiCl_(4)主要汇入塔顶馏出物,其中CCl_(3)COCl的收率大于99.0%,满足分离要求。Aiming at separating the organic impurities in titanium tetrachloride after vanadium removal by organics refining,Aspen P1us software was used to simulate the rectification process of TiCl_(4),and the design parameters of the rectification column were optimized by sensitivity analysis.The optimal design parameters of the rectification column were determined at the reflux ratio of 100,the number of column plate of 68,the feed position on the 24 th plate,the top temperature of 64.38℃,the bottom temperature of 155.06℃,and the distillate rate of 223 kg/h.At the optimum conditions,the purity of titanium tetrachloride after rectification is up to 99.9967%,with the yield ratio more than 99.0%.Organic impurities and SiCl_(4) mainly flow into the distillate.The yield of CCl_(3)COCl in the distillate is more than 99.0%,which meets the separation requirement.

关 键 词：四氯化钛 除钒 有机杂质 精馏分离 模拟 

分 类 号：TF823[冶金工程—有色金属冶金]