DISSOLUTION KINETICS OF NICKEL LATERITE ORE USING DIFFERENT SECONDARY METABOLIC ACIDS

被引：19

作者：

Sahu, S. ^{[1
]}

Kavuri, N. C. ^{[1
]}

Kundu, M. ^{[1
]}

机构：

[1] Natl Inst Technol, Dept Chem Engn, Rourkela, Orissa, India

来源：

BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING | 2011年 / 28卷 / 02期

关键词：

Dissolution kinetics: Laterite ore; Leaching; Pseudomonas putida; SULFURIC-ACID; LEACHING KINETICS; NATURAL MAGNESITE; SILICATE; MINERALS; BACTERIA; CATALYST; PYRITE; FUNGI; ROCKS;

D O I：

10.1590/S0104-66322011000200009

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The dissolution kinetics of nickel laterite ore in aqueous acid solutions of three metabolic acids, i.e., citric acid, oxalic acid and acetic acid were investigated in a batch reactor individually. It was determined that experimental data comply with a shrinking core model. The diffusion coefficients for citric acid, oxalic acid and acetic acid were found to be 1.99x10(-9) cm(2)/s, 2.59x 10(-8) cm(2)/s and 1.92x10(-10) cm(2)/s respectively. The leaching ability of each acid was observed and it was found that oxalic acid was better than the other two.

引用

页码：251 / 258

页数：8

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