氟化铵-盐酸法提纯隐晶质石墨的正交试验研究  

Purification of aphanitic graphite by ammonium fluoride and hydrochloric acid using orthogonal test

作　　者：匡加才[1] 徐华[1] 谢炜[2] 邓应军[2] 彭顺文[2] 王真[2] 唐维[2] 

机构地区：[1]长沙理工大学材料科学与工程研究所,湖南长沙410114 [2]长沙理工大学汽车与机械工程学院,湖南长沙410114

出　　处：《炭素技术》2014年第1期20-22,42,共4页Carbon Techniques

基　　金：国土资源部公益性行业科研专项(201011031);湖南省科技计划(2102fj6010;2012GK3059);特殊环境道路工程湖南省重点实验室开放基金(kfj110406)

摘　　要：为了优化氟化铵-盐酸法提纯隐晶质石墨的工艺条件,对隐晶质石墨的工业化生产提供理论指导,通过正交试验分析,探讨了氟化铵-盐酸法提纯中影响隐晶质石墨固定碳含量的主要因素。研究了氟化铵加入量、反应温度和液固比对隐晶质石墨固定碳含量的影响,确定了最优组合为A3C3D1(即液固比2:1、氟化铵加入量15 g、反应温度80℃),此时,其固定碳含量为99.07%。研究表明正交试验能优化氟化铵-盐酸法提纯隐晶质石墨的工艺条件,可以为隐晶质石墨的工业化生产提供一定的理论指导。In order to optimize the process conditions of ammonium fluoride-hydrochloric acid method to purify aphanitic graphite, and provide theoretical guidance to aphanitic graphite＇s industrial production, in this paper the main factors including ammonium fluoride amount, reaction temperature and liquid-solid ratio that will influence the fixed carbon content of the aphanitic graphite in the purification process were studied by orthogonal experiment. The results showed that the best group is A3C3D1 （that is the liquid to solid ratio of 2：1,the ammonium fluoride amount of 15 g and the reaction temperature of 80 ℃）, and the fixed carbon content is 99.07%. The orthogonal experiment can optimize the process conditions of ammonium fluoride- hydrochloric acid method, and provide some theoretical guidance to aphanit-ic graphite industrial production.

关 键 词：隐晶质石墨 正交试验 提纯 

分 类 号：O613.71[理学—无机化学]