The waste acid from benzolrefining is a very complex mass and we has no better method to deal with it for a long time.
精苯废酸组成极为复杂，长期以来对精苯废酸的处理没有合适的解决方法。
2
The process for the treatment of the waste acid from crude benzolrefining with calcining process is studied, the optimum operation data are discussed and the process is optimized.
研究了焙烧法处理粗苯精制废酸的工艺过程，探讨了最佳运行参数，优化了工艺流程。
3
The technical modification of ketone-benzol unit to improve the deoiling yield in Daqing Refining and Chemical Company was carried out in 2004.