【摘要】 铬盐生产厂含铬硫酸氢钠返回系统中再利用所产生的废渣———磷酸铬渣,通过实验室研究,可生产重铬酸钠。进行了技术上的可行性和产品销售方面的可行性分析。该工艺解决了铬盐生产厂的三废污染问题,年处理量500t的装置所产生的经济效益为70.5万元/a,所需设备价廉、易得。更多还原

【Abstract】 Based on laboratory research,the feasible analysis on process technology of producing sodium dichromate from used chromic residue phosphate produced by reused sodium hydroger sulfate in chromate producing system is made,together with its potential market analysis.With annual treatment volume500t,the plant can bring profit of705thousand RMN Yuan annually.更多还原