减少Zn+Pb+Cu回收厂硫化物有毒气体排放和去除主要杂质的实验和模拟评估

IF 1 Q4 ENGINEERING, CHEMICAL
M. Saidi, H. Kadkhodayan
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引用次数: 1

摘要

摘要采用田口法和Aspen Plus软件对闪锌矿锌、铅、铜工业回收工艺的新配置进行了综合评价,以减少有毒气体的排放。用田口法得到的最佳工况作为过程模拟的初始数据。考虑了操作参数对工艺性能的影响。硫化有毒气体转化为H2SO4的最佳条件为:酸浓度0.867 mol/L,反应温度120℃,搅拌速度400 rpm,浸出时间120 min,硫化矿石粒度0.01 mm;固液比为30 wt%,添加剂用量为50 kg/t,氧气压力为200 psi。在最佳工艺条件下,硫化物有毒气体H2SO4产率可达99%,Fe、Co、Mn、Ni和Cd杂质去除率可达99%,Zn + Pd + Cu回收率可达97%以上。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Experimental and simulation assessment to mitigate the emission of sulfide toxic gases and removing main impurities from Zn + Pb + Cu recovery plants
Abstract An integrated novel approach employing the Taguchi method and Aspen Plus software has been applied to evaluate a new configuration for the industrial process of Zn + Pb + Cu recovery from sphalerite ore, in order to minimize the toxic gas emission. The optimum operating condition achieved by the Taguchi method has been used as initial data for the process simulation. The impact of operating parameters on the process performance is considered. The optimum condition for the conversion of sulfide toxic gases to H2SO4 have been found to be: acid concentration of 0.867 mol/L, reaction temperature of 120 °C, stirring speed of 400 rpm, leaching time of 120 min, sulfide ore particle size of 0.01 mm; solid-to-liquid ratio of 30 wt%, additives amount of 50 kg/ton and oxygen pressure of 200 psi. Under optimum condition, H2SO4 production from sulfide toxic gases is 99%, the removal percentage of Fe, Co, Mn, Ni and Cd impurities is 99% and the recovery percentage of Zn + Pd + Cu is more than 97%.
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来源期刊
Chemical Product and Process Modeling
Chemical Product and Process Modeling ENGINEERING, CHEMICAL-
CiteScore
2.10
自引率
11.10%
发文量
27
期刊介绍: Chemical Product and Process Modeling (CPPM) is a quarterly journal that publishes theoretical and applied research on product and process design modeling, simulation and optimization. Thanks to its international editorial board, the journal assembles the best papers from around the world on to cover the gap between product and process. The journal brings together chemical and process engineering researchers, practitioners, and software developers in a new forum for the international modeling and simulation community. Topics: equation oriented and modular simulation optimization technology for process and materials design, new modeling techniques shortcut modeling and design approaches performance of commercial and in-house simulation and optimization tools challenges faced in industrial product and process simulation and optimization computational fluid dynamics environmental process, food and pharmaceutical modeling topics drawn from the substantial areas of overlap between modeling and mathematics applied to chemical products and processes.
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