工业黄磷制备高纯磷的实验研究  

Study on Purification Process of Yellow Phosphorus

作　　者：任永胜[1] 李军[1] 马睿[1] 许杰淋[1] 

机构地区：[1]四川大学化学工程学院,四川成都610065

出　　处：《四川大学学报（工程科学版）》2009年第6期73-78,共6页Journal of Sichuan University (Engineering Science Edition)

基　　金：国家"十一五"科技支撑计划资助项目(2007BAE58B01)

摘　　要：采用区域熔融法净化工业黄磷制备高纯磷。考察了熔区移动速度、区熔次数、熔区长度以及黄磷原料杂质初始含量对提纯效果的影响。研究结果表明,采用区熔法对工业黄磷进行提纯是完全可行的,且当原料砷含量为14301 ng/g时,在移动速度为10 mm/h,熔区长度为0.1L,经过5次区熔后,除As外,Fe、Ca、Co、Mg、Cr、Cd、Mn、Ni、Cu、Pb、Zn、Al等12种杂质均达到6N(99.9999%)级水平,当经过区熔30次后,总杂质含量脱除到100 ng/g左右,完全能够满足半导体以及医药行业对高纯磷的要求。A method of zone refining was applied to purify the industrial yellow phosphorus to obtain ultra-pure phosphorus.The influence of variable zone lengths,zone passes,moving speed and the impurity of raw materials on the purification process was studied.The results indicated that after 5 zone passes,the 12 impurities'(Fe,Ca,Co,Mg,Cr,Cd,Mn,Ni,Cu,Pb,Zn,Al) content reached to the level of 6 N(99.9999%) except arsenic under the conditions of moving speed 10 mm/h,zone length 0.1L and the arsenic content of raw mate...

关 键 词：区熔法 黄磷 杂质 提纯 

分 类 号：TQ126.317[化学工程—无机化工]