海绵钛中杂质元素Al来源及控制技术研究  

Source analysis and control technology of impurity Al in titanium sponge

作　　者：朵云霞 王丽娟 李仪 魏治中 Duo Yunxia;Wang Lijuan;Li Yi;Wei Zhizhong(Luoyang Sunrui Wanji Titanium Industry Co.,Ltd.,Luoyang 471003,Henan,China)

机构地区：[1]洛阳双瑞万基钛业有限公司,河南洛阳471003

出　　处：《钢铁钒钛》2022年第1期36-39,共4页Iron Steel Vanadium Titanium

摘　　要：对克劳尔法生产过程海绵钛中Al杂质的来源进行了分析,主要为原料四氯化钛以及原料镁所引入。随后主要对四氯化钛的Al杂质元素的来源进行分析,采取在氯化工序中通水蒸气的措施进行除铝,当通水量在10 kg/h时,就能达到84.22%的除铝效果;同时对原料镁中带入的Al的来源进行分析,并通过加入精炼剂来进行除杂,当精炼剂加入量达到20 kg/t时,除杂效果优异。又因为海绵钛钛坨在生成期间,受反应过程影响,杂质元素Al在海绵钛中分布并不均匀,因此要生产高质量海绵钛,需要从源头进行Al元素的除杂。The sources of impurity Al in titanium sponge produced by the Kroll process were analyzed.The impurity Al is mainly derived from titanium tetrachloride and magnesium.Based on the source analysis of Al in titanium tetrachloride,water vapor was introduced for Al removal from titanium tetrachloride during the chlorination process,where 84.22%of Al removal ratio can be obtained at 10 kg/h of water dosage.At the same time,Al in magnesium was removed by adding refining agent,and a favorable effect can be obtained at 20 kg/t of refining agent amount.Influenced by the reaction process for titanium sponge formation,Al is not evenly distributed in titanium sponge.Therefore,it is necessary to carry out Al removal measures from the source materials to produce high-quality titanium sponge.

关 键 词：海绵钛 AL含量 四氯化钛 粗镁 精制 

分 类 号：TF823[冶金工程—有色金属冶金]