Bioleaching of lateritic nickel ore by ultrasound

被引：27
|
作者：
Kar, RN
Sukla, LB
Swamy, KM
Panchanadikar, VV
Narayana, KL
机构：
[1] Regional Research Laboratory (CSIR), Bhubaneswar 751 013, Orissa
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 1996年 / 27卷 / 03期
关键词：
D O I：
10.1007/BF02914897
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The bioleaching of nickel from lateritic ore of Orissa, India, using a native Aspergillus niger strain was studied with and without ultrasound. Different parameters, such as spore concentration, amount of dextrose in the medium, pulp densities, and sonication time, were studied for maximizing the extraction of nickel. Enhanced recoveries and reduction in leaching time were demonstrated using ultrasound. The highest amount of nickel, 95 pct, was extracted in 14 days with an inoculum size of 10(6) spore/mL and 2 pct dextrose in the medium under 30 minutes ultrasonic pretreatment using 43 KHz frequency at 1.5 W/cm(2) intensity. It was also found that ultrasound assists in selective leaching of nickel over iron.
引用
收藏
页码：351 / 354
页数：4
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