摘要
研究了以造纸白泥、电石渣及工业废硫酸为原料制备化学建材石膏的原料二水石膏的工艺条件和影响因素,同时采用废水闭路循环回用工艺流程,防止二次污染的产生。实验表明,将废渣配成10%浓度的浆液与低浓度废硫酸进行反应,可制造含量达90%以上的优质二水石膏。
The study focused on the chemical condition and influence factors of preparing chemical building plaster from paper making clay, carbide slag and waste sulfuric acid. Wastewater closed circulation and reused technological process were adopted to prevent secondary pollution. The result showed that if the waste slag compose of 10% fluid and react with low concentrated sulfuric acid, 90% dihydrate plaster would be prepared.
出处
《上海化工》
CAS
1999年第24期26-27,30,共3页
Shanghai Chemical Industry
关键词
造纸
白泥
电石渣
工业废酸
二水石膏
废物处理
Paper making clay
Carbide slag
Waste sulfuric acid
Dihydrate plaster