含铬硫酸氢钠废料在中和、预酸化中的应用  

AN APPLICATION OF CHROMIC FLOTSAM NATRIUM BISULFATE IN THE COURSE OF NEUTRALIZATION AND PRE ACIDIFICATION

作　　者：陈雪梅[1] 肖文胜[1] 蔡再华[2] 

机构地区：[1]黄石高等专科学校环化系,湖北黄石435003 [2]黄石无机盐厂,湖北黄石435002

出　　处：《黄石高等专科学校学报》2000年第4期11-13,共3页Journal of Huangshi Polytechnic College

摘　　要：介绍铬酸酐生产中 ,含铬硫酸氢钠废料用于前工段中和、预酸化。实验表明 ,含铬硫酸钠中六价铬和硫酸均可以重新利用。若加入沉淀剂磷酸 ,使沉淀结晶颗粒增大 ,更易于过滤。The paper introduces the application of chromic flotsam natrium bisulfate in the course of neutralization and pre acidification in industry of chromic acid anhydride.test express:Cr(Ⅵ) and sulphuric acid can be used,and,if precipitant such as phosphoric acid is added to the solution,the size of crystalloid increases,and the solution is filtered easily.

关 键 词：含铬硫酸氢钠 沉淀剂 

分 类 号：X781.031[环境科学与工程—环境工程] TQ136.11[化学工程—无机化工]