Modeling and optimization of low-grade Mn bearing ore leaching using response surface methodology and central composite rotatable design

被引：45

作者：

Azizi, Dariush ^{[1
]}

Shafaei, Sied Ziaedin ^{[1
]}

Noaparast, Mohammad ^{[1
]}

Abdollahi, Hadi ^{[1
]}

机构：

[1] Univ Tehran, Coll Engn, Sch Min, Tehran 1439957131, Iran

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 09期

关键词：

response surface methodology; leaching; manganese; optimization; modeling; MANGANESE ORE; PERFORMANCE; SEPARATION; RECOVERY; DIOXIDE;

D O I：

10.1016/S1003-6326(11)61463-5

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The application of leaching process to extracting Mn from a low-grade manganese ore was investigated using a software based design of experiments. Four main parameters, i.e. sulfuric acid concentration, oxalic acid concentration, time and temperature were considered in a central composite response surface design. The recoveries of Mn and Fe were selected as response of design. The optimum conditions under which the Mn and Fe recoveries were the highest and the time and temperature were the lowest were determined using statistical analysis and analysis of variance (ANOVA). The results showed that Mn and Fe recoveries were 93.44% and 15.72% under the optimum condition, respectively. Also, sulfuric acid concentration was the most effective parameter affecting the process. The amounts of sulfuric and oxalic acid were obtained to be 7% and 42.50 g/L in optimum condition and the best time and temperature were 60 min and 65 degrees C.

引用

页码：2295 / 2305

页数：11

共 26 条

[1]

ABBRUZZESE B, 1990, MINER ENG, V3, P307

[2] PERCOLATION LEACHING OF MANGANESE ORE BY AQUEOUS SULFUR-DIOXIDE [J].