研究CLINDIAN网络以确定灯在某些条件下如何产生Molase

IF 0.6 Q4 METALLURGY & METALLURGICAL ENGINEERING

Metalurgija Pub Date : 2018-01-23 DOI:10.14203/METALURGI.V29I2.282

S. Sumardi, F. R. Mufakhir, A. Prasetyo

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引用次数: 0

摘要

用糖蜜在硫酸中浸出楠威县低品位锰矿的动力学研究。以甘蔗糖蜜为还原剂，在硫酸中对楠榜省韦卡南县低品位锰矿进行了锰浸出试验。本实验旨在研究控制锰矿浸出率的过程以及反应速率常数和/或扩散常数和活化能的值。浸出实验条件为：固体百分比10%，搅拌速度300rpm，温度和浓度不同，糖蜜用量高达80g/L。利用缩芯模型（SCM）预测了锰浸出的动力学行为。以糖蜜为还原剂，在硫酸介质中对楠榜省韦卡南县低品位锰矿进行浸出试验。以糖蜜为还原剂浸出锰的动力学研究表明，锰的浸出速率受反应产物通过未反应核的扩散控制，活化能为3.73kcal/mol。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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STUDI KINETIKA PELINDIAN BIJIH MANGAN KADAR RENDAH DAERAH WAY KANAN LAMPUNG DENGAN MENGGUNAKAN MOLASES DALAM SUASANA ASAM

KINETICS STUDY OF MANGANESE LEACHING OF LOW GRADE MANGANESE ORE FROM WAY KANAN REGENCY LAMPUNG PROVINCE USING MOLASSES IN SULFURIC ACID. The experiments of manganese leaching of low grade manganese ore from Way Kanan regency Lampung province using sugarcane molasses as reductan agent in sulfuric acid were investigated. This experiment was conducted to study the processes controlling the leaching rate of manganese ore and the values of the reaction rate constants and / or the diffusion constant and activation energy . Leaching is done with the experimental conditions remain Percent solids 10 % , stirring speed 300 rpm , temperature and concentration are varied , molasses doses as much as 80 g / L. Kinetics behaviour of mangan leaching was predicted by using Shrinking Core model ( SCM) . The results of leaching of low grade manganese ore from Way Kanan regency Lampung province can be done by using molasses as a reducing agent in sulfuric acid medium. Kinetics study of manganese leaching using molasses as reducing agent shows that the rate of manganese leaching is controlled by the diffusion of reaction product through unreacted core with activation energy of 3.73 kcal/mole.

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来源期刊

Metalurgija 工程技术-冶金工程

CiteScore

1.20

自引率

33.30%

发文量

审稿时长

4-8 weeks

期刊介绍： The journal Metalurgija is primary scientific periodical that publishes scientific papers (original papers, preliminary notes, reviewed papers) as well as professional papers from the area of basic, applicable and developing researching in metallurgy and boundary metallurgy areas (physics, chemistry, mechanical engineering). These papers relate to processing ferrous and non-ferrous metallurgy, treating investigating as well as testing of raw materials, semi products and products, especially in the area of improving new materials and possibilities of their implementation. The journal is the only national periodical of this kind in the Republic of Croatia and covers the scientific field of metallurgy, especially: physical metallurgy and materials; process metailurgy, (ferrous and non-ferrous); mechanical metallurgy (processing, power , etc.); related (adjoing) branches: mechanlcal engineering, chemistry, physics etc.