国产结晶助剂在选矿拜耳法分解系统中的应用  

The application of domestic crystallization additives to precipitation system of Ore-dressing Bayer process

作　　者：左林举 

机构地区：[1]中国铝业中州分公司,河南焦作454174

出　　处：《轻金属》2013年第10期16-18,共3页Light Metals

摘　　要：通过添加结晶助剂提高细颗粒附聚,减少系统成核,改善整个分解系统不同粒径氢氧化铝颗粒的分布,使分解系统氢氧化铝-45μm保持在15%以下,然后氢氧化铝料浆经过旋流分级-45μm达到10%,使焙烧出炉氧化铝-325#小于18%。The fine particle agglomeration is increased by adding crystallization additives, the distribution of different particle size of aluminum hydroxide in the whole precipitation system is improved, and -45 p,m aluminum hydroxide in the precipitation system is kept below 15%, then -45 p,m aluminum hydroxide slurry of 10% after cyclone classifying can be gained, finally -325# alumina less than 18% is calcined after calcination.

关 键 词：结晶助剂 选矿-拜耳法 种分分解 铝酸钠溶液 

分 类 号：TF821[冶金工程—有色金属冶金]