摘要
为了获得络合萃取脱酚的最优工艺参数,采用40%TOA-60%煤油为络合萃取剂进行脱酚试验研究。通过单因素试验明晰了不同因素对脱酚效果的影响规律,通过正交试验确定了不同因素对萃取效果的影响,并优化得到了最优工艺参数,确定了最佳的萃取效果。结果表明,萃取级数增加,相比增大,pH值减小,降低温度可提高萃取率;4种工艺条件对萃取率的影响顺序为:萃取级数>相比>pH>温度,最佳工艺参数为萃取级数4级、相比1∶3、pH=4、温度25℃,最佳的总酚萃取率为94%。
In order to obtain the optimum technological parameters of phenol complexation extraction process,the extraction experiment was carried out using 40% TOA-60% kerosene as complexing agent.The effect of different factors on the removal of phenol was determined by single factor experiment,and the effect of different factors on the extraction efficiency was studied through orthogonal experiment. Finally,the optimal process parameters were obtained. Extraction efficiency was achieved under the optimal process parameters. The results show that the phase ratio will be increased when the extraction rate increases,and pH and temperature decrease.The influence of the 4-step conditions on the extraction rate is extraction rate the phase ratio pH temperature.The best process parameters can be achieved when the extraction series is four grade,phase ratio is 1 ∶ 3,pH is 4,the temperature is 25 ℃,and the total phenol extraction rate is 94%.
作者
王吉坤
杜松
WANG Jikun1,2, DU Song1,2(1. Coal Science and Technology Co. ,Ltd. ,Beijing 100013 ,China;2. State Key Laboratory of Coal Mining and Clean Utilization,Beijing 100013 ,Chin)
出处
《洁净煤技术》
CAS
2018年第1期90-95,共6页
Clean Coal Technology
基金
国家高技术研究发展计划(863计划)资助项目(2015AA050501)
关键词
络合萃取
脱酚
单因素试验
正交试验
最佳工艺参数
complexation extraction
dephenolize
single factor experiment
orthogonal experiment
the optimal process parameters
