TY - JOUR
T1 - Optimization of microwave-assisted manganese leaching from electrolyte manganese residue
AU - Chang, Jun
AU - Srinivasakannan, Chandrasekar
AU - Sun, Xianxiu
AU - Jia, Fukang
N1 - Funding Information:
Authors appreciate the valuable comments from Kathryn Mumford (an associate professor in the Department of Chemical and Biomolecular Engineering at The University of Melbourne). This work was financially supported by the National Natural Science Foundation of China (No. 51804220 and 51864042), the Scientific Elitists Supporting Project of Department of Education of Guizhou Province (No. KY[2017]090), the Joint Fund Project of Science and technology department of Guizhou province (No. LH[2017]7312), the Basic Research Project of Guizhou Province (No. [2019]1311) and CSC scholarship (File No. 201708525070). Conflict of interest Conflict of interest statement: The authors declare no conflict of interest.
Publisher Copyright:
© 2020 Chang et al., published by De Gruyter 2020.
PY - 2020/1/1
Y1 - 2020/1/1
N2 - The process optimization of microwave assisted leaching of manganese from electrolytic manganese residue (EMR) was conducted. The Box-Behnken design (BBD) was utilized to determine the number of experiments as well as to assess the effect of the main leaching parameters, including the reaction temperature, reaction time, concentration of sulfuric acid and dosage of citric acid. A quadratic model was found to best fit the experimental data and was utilized to optimize the process parameters to maximize the percentage manganese recovery. 3-D response surface plots and contour plots were generated utilizing mathematical models to understand the effect of variables as well as to identify the optimal conditions. The optimum conditions of microwave assisted leaching were: temperature of 76°C, time of 55 min, H2SO4 concentration of 0.76 mol·L-1, dosage of citric acid of 3.51 mg/g. Under these conditions, the percentage manganese recovery higher than 90% could be achieved.
AB - The process optimization of microwave assisted leaching of manganese from electrolytic manganese residue (EMR) was conducted. The Box-Behnken design (BBD) was utilized to determine the number of experiments as well as to assess the effect of the main leaching parameters, including the reaction temperature, reaction time, concentration of sulfuric acid and dosage of citric acid. A quadratic model was found to best fit the experimental data and was utilized to optimize the process parameters to maximize the percentage manganese recovery. 3-D response surface plots and contour plots were generated utilizing mathematical models to understand the effect of variables as well as to identify the optimal conditions. The optimum conditions of microwave assisted leaching were: temperature of 76°C, time of 55 min, H2SO4 concentration of 0.76 mol·L-1, dosage of citric acid of 3.51 mg/g. Under these conditions, the percentage manganese recovery higher than 90% could be achieved.
KW - electrolytic manganese residue
KW - manganese
KW - microwave assisted leaching
KW - response surface methodology
UR - http://www.scopus.com/inward/record.url?scp=85072736902&partnerID=8YFLogxK
U2 - 10.1515/gps-2020-0001
DO - 10.1515/gps-2020-0001
M3 - Article
AN - SCOPUS:85072736902
SN - 2191-9542
VL - 9
SP - 1
EP - 11
JO - Green Processing and Synthesis
JF - Green Processing and Synthesis
IS - 1
ER -
