摘要
研究了以含铝、钴的化肥废催化剂为原料制备硫酸铝钾(明矾)的方法。确定了最佳工艺条件:化肥废催化剂粒度为300目、硫酸浓度为9 mol／L、浸取时间为30 min、用K2CO3调滤液pH至1-2。在该条件下制备的KAl(SO4)2·12H2O产品纯度为98.2％,达到日本工业标准(JIS K1473-1970)工业级纯度。
The process for preparing aluminum potassium sulfate from waste fertilizer catalyst, which contains aluminum and potassium, was studied. The optimum reaction conditions were determined as follows: catalyst granularity 300 mesh,sulfuric acid concentration 9 mol/L,leaching time 30 min,filtrate pH 1-2 adjusted with K2CO3.The purity of final product is 98.2% ,which can meet the industrial grade standard of Japan.
出处
《化工环保》
CAS
CSCD
北大核心
2004年第6期449-451,共3页
Environmental Protection of Chemical Industry
基金
山西省自然科学基金资助项目(20041013)
关键词
化肥
废催化剂
硫酸铝钾
综合利用
chemical fertilizer
waste catalyst
aluminum potassium sulfate
comprehensive utilization
