机构地区: 首都师范大学化学系
出 处: 《化工时刊》 1999年第12期20-22,共3页
摘 要: 以氯苯为溶剂,在不同温度下用50%的氢氧化钾溶液、活性白土、90%的硫酸溶液处理工业菲,经冷却、结晶获得纯度98.4%~99.2%的精菲,收率83%以上。母液可以循环使用,溶剂可以回收。 Purification of crude phenanthrine is dealed with 50% potassiu hydroxide solution activated bentonite 90% sulfuric acid solution and recrystallization at different temperatures in the chlorobenzene. The purity of product is 99.2% . The average yield is more than 83 %. The recovered solvent and mother solution can be circulative used.
领 域: [化学工程]