钼精矿一步除杂制备高纯二硫化钼新工艺  

Preparation of high purity molybdenum disulfide by one stage purification from molybdenum concentrate

作　　者：成兰兴 赵增兵 赵怡丽 丁为公 张圆春 黄文蕊 CHENG Lan-xing;ZHAO Zeng-bing;ZHAO Yi-li;DING Wei-gong;ZHANG Yuan-chun;HUANG Wen-rui(Henan Province Chemical Industry Research Institute Co.,Ltd.,Zhengzhou 40052,China;Luoyang Shenyu Molybdenum Industry Co.,Ltd.,Luoyang 471000,China)

机构地区：[1]河南省化工研究所有限责任公司,河南郑州450052 [2]洛阳申雨钼业有限责任公司,河南洛阳471000

出　　处：《化学工程师》2018年第11期11-13,共3页Chemical Engineer

基　　金：河南省科技计划项目(182102210344);河南省科学院助推科技成果转化专项(18ZT08005)

摘　　要：以钼精矿为原料,改变传统多段酸浸多次水洗除铁和除硅工艺,通过加入自制的复合氟化物,采用低温常压一段酸浸一次水洗方法,将MOS2中的铁由1.31%降低到0.15%以下,Si O2含量由2.13%降低到0.0269%。最佳试验条件为:反应温度75℃,反应时间2.5h,复合氟化物用量为14%(以钼精矿质量计)。产品按GB23471-2009方法检测,产品含量Mo 59.3%,Fe 0.062%,Si O20.0269%,酸值0.03mgKOH/g,总回收率95.4%。该产品纯度较高,达到高精尖领域的特殊应用要求。Using molybdenum concentrate as raw material, the traditional multi-stage acid leaching process for removing iron and silicon was changed. By adding self-made fluoride complex and one-stage acid leaching at low temperature and atmospheric pressure, the iron content in molybdenum disulfide reduced from 1.31% to less than 0.15%, and the content of silica reduced from 2.13% to 0.0269%. The optimum reaction temperature was 75 ℃, re-action time was 2.5 hours, and the amount of fluoride complex was 14% （by molybdenum concentrate mass）. The content of Mo59.3%, Fe 0.062%, SiO2 0.0269% and acid value 0.03 mg KOH/g were determined using national standard method of GB23471-2009. The total yield was 95.4%. The product is of high purity and meets the special application requirements of high precision field.

关 键 词：钼精矿 高纯二硫化钼 酸浸 复合氟化物 铁 二氧化硅 

分 类 号：TQ016.1[化学工程]