摘要
针对含有“长寿碱蚀剂”的铝型材碱洗废液提出了生石灰处理工艺,以代替传统的拜尔法处理工艺。工艺简单,效果好,铝去除率最高可达97% ,碱回收率可达80% 左右,完全可以实现工业化生产。同时,该法原料价廉易得,实行闭路循环,副产品CaCl2·2H2O、Al2(SO4)3·18H2O和CaSO4·2H2O等均具有较高利用价值,可以获得良好的社会效益与经济效益。
A new lime process has been advanced for the treatment of waste solution containing alkaline etchant for aluminum extrusions. The process is efficient and simple in operation. The eleminetion rate of aluminum can be 97% and the recovery of NaOH about 80%. The raw material is cheap in cost and the by products can also be utilized.
出处
《材料保护》
CAS
CSCD
北大核心
1999年第9期15-16,共2页
Materials Protection