国外氯化法钛白氧化反应器特点及分析  

Summary on Characteristics of Oxidation Reactor for Titanium Dioxide Production by Chloride Process

作　　者：吴优[1] 

机构地区：[1]攀钢集团研究院有限公司,四川攀枝花617000

出　　处：《钢铁钒钛》2016年第2期92-96,共5页Iron Steel Vanadium Titanium

摘　　要：对国外主要氯化法钛白生产企业杜邦、康诺斯、特诺和科斯特公司氧化工序的生产技术,并重点围绕氧化反应器结构以及结疤清除技术进行了调研。结果表明:国外这四家大型氯化法钛白企业采用的物料加入流程大体相同,均采用事先预热物料O_2和TiCl_4的方法,以维持气相氧化的正常进行;均采用强制冷却的方法对燃烧室外壁进行保护。目前,国外大型氯化法钛白生产企业较倾向采用直径较小的反应室,并采用机械刮除法、喷砂法、气膜保护法或"喷砂+气幕"法解决氧化器结疤问题。The technologies of oxidation process in the main foreign titanium dioxide manufacturers adopting chloride process,such as Dupont,Kronos,Tronox and Cristal Global were studied in this paper with emphasis on the structures of oxidation reactor and crusting removal technique. The results show that all the mentioned four large- scale companies adopt the similar charging methods that O2 and TiC l4 are preheated to maintain the smooth operation of gas phase oxidation,and the ektexine of burner is protected by forced cooling. So far,oxidation reactor with relatively small diameter is preferred for titanium dioxide production with chloride process by these large- scale manufacturers,and the methods including mechanical scraping,sand blasting,gas film protection or combined sand blasting and gas film are usually employed for the crusting removal on the oxidation reactor.

关 键 词：钛白粉 氯化法 氧化 结疤 

分 类 号：TQ620.5[化学工程—精细化工]