从PTA残渣中回收醋酸钴和醋酸锰的研究

详细信息

刊出日期: 2001-06-01

Study on Recovery of Cobalt and Manganese Acetates from PTA Residue

Publish Date: 01 June 2001

摘要: 以对苯二甲酸生产装置中排放的废催化剂为原料,采用萃取—结晶法回收其中的醋酸钴和醋酸锰。研究了操作条件对醋酸钴和醋酸锰回收率的影响,实验结果表明:在萃取温度80℃,萃取时间30~45min,液固比9∶1,结晶温度5℃,分三级萃取结晶的条件下,醋酸钴和醋酸锰的回收率达85%。回收的醋酸钴和醋酸锰可以重复用作催化剂。
- PTA残渣 /
- 醋酸钴 /
- 醋酸锰
Abstract: The extraction-crystallization method was used to recover cobalt and manganese acetates from the waste catalyst in the PTA production process .The effct of operating conditions on the recovery of cobalt and manganese acetates was studied.The experimental results indicated that the recovery can arrive to 85% under the conditions of extraction temperature 80℃,extraction time 30—45min,liquid-solid ratio 9∶1 and crystallization temperature 5℃.The recovered cobalt and manganese acetates can be reused for catalyst.