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从电炉烟尘中碱浸锌的动力学研究

张荣良 李凤连 张小飞

湿法冶金2015,Vol.34Issue(5):380-384,5.
湿法冶金2015,Vol.34Issue(5):380-384,5.DOI:10.13355/j.cnki.sfyj.2015.05.008

从电炉烟尘中碱浸锌的动力学研究

Kinetics of Leaching of Zinc From EAF Dust Using Alkaline

张荣良 1李凤连 1张小飞1

作者信息

  • 1. 江苏科技大学材料科学与工程学院 ,江苏张家港 215600
  • 折叠

摘要

Abstract

The leaching kinetics of zinc from EAF dust using NaOH solution was investigated by the shrinking unreacted core model for the heterogeneous reaction of liquid-solid .T he influences of temperature and NaOH concentration on the reaction rate were examined .The results show that leaching zinc process conforms to the law of solid membrane diffusion control w hen temperature is less than 80 ℃ ,the reaction apparent activation energy calculated is 9 .581 8 kJ/mol .T he leaching zinc process conforms to the law of interfacial chemical reaction control w hen temperature is higher than 80℃ ,the reaction apparent activation energy calculated is 49 .319 kJ/mol .T he apparent reaction progression of leaching reaction is 0 .983 .

关键词

电炉烟尘/回收//NaOH溶液/动力学

Key words

EAF dust/recycling/zinc/NaOH solution/kinetics

分类

矿业与冶金

引用本文复制引用

张荣良,李凤连,张小飞..从电炉烟尘中碱浸锌的动力学研究[J].湿法冶金,2015,34(5):380-384,5.

基金项目

江苏省基础研究计划项目(Bk2009574). (Bk2009574)

湿法冶金

OA北大核心

1009-2617

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