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典型铅冶炼企业砷锑烟尘资源化制备Sb2O3

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砷锑烟尘是铅冶炼企业产生的一种高锑高砷固体粉末，对冶炼区环境构成了重大威胁。如何实现砷锑烟尘的资源化回收和无害化处理，是当前重金属冶炼企业所面临的共性难题。本文提出了一种砷锑烟尘真空气化-冷凝清洁制备Sb2O3的新方法。ICP结果表明，砷锑烟尘经低温、高温两段真空气化-冷凝处理，Sb2O3含量由73。96%升高至91。35%，As元素含量由18。10%降低至6。20%，其余杂质含量占比不超过0。17%。XRD结果表明，锑以Sb2O3形态气化迁移-冷凝，杂质砷以As2O3形态迁移挥发，两物相分离效果显著。SEM和EPMA分析表明，制备出的Sb2O3产品颗粒粒径分布均匀。整个过程废气、废水零排放，无试剂消耗，对铅冶炼企业周边生态环境的影响轻微。
Resourceful preparation of Sb2O3 in hazardous As-Sb dust from typical lead smelter
Hazardous arsenic antimony dust(HAAD),a perilous by-product with significant antimony and arsenic concentrations generated in lead smelters,poses a substantial environmental threat.The imperative of resource recycling and the innocuous processing of HAAD stand as prevalent challenges and pressing priorities.This study introduces an innovative vacuum vaporization-condensation technique to synthesize Sb2O3.ICP analysis evidenced an enhancement in the purity of the Sb2O3 product from an initial 73.96%to 91.35%,with a concomitant reduction in As impurities from 18.10%to 6.20%,and residual contaminants approximating 0.17%following a dual-phase vacuum process.XRD assessments affirmed the feasibility of direct Sb2O3 synthesis via vapor-phase migration and condensate amalgamation,achieving substantial As2O3 impurity diminution.SEM and EPMA observations underscored a homogenous particulate morphology in the refined Sb2O3.This methodology underscores its environmental compatibility,characterized by zero gaseous effluent,absence of wastewater expulsion,and elimination of reagent usage,thereby mitigating environmental detriments.

heavy metal disposalantimonyarsenichazardous wastelead smeltingcleaner utilization

李绍雄、孔祥峰、高哲、和玉虹、马保中、杨佳、杨斌、刘大春

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National Engineering Research Center of Vacuum Metallurgy,Kunming University of Science and Technology,Kunming 650093,China

Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China

Yunnan University of Finance and Economics,Kunming 650221,China

School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083,China

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重金属处理 锑 砷 危险废物 铅冶炼 清洁利用

国家重点研发计划国家自然科学基金国家自然科学基金Yunnan Fundamental Research Projects,ChinaYunnan Fundamental Research Projects,ChinaYunnan Fundamental Research Projects,ChinaYang Bin Scientist Studio of Yunnan Province,China(2020)Yunnan Talents Support Project,China(2022)Yunnan Key Science and Technology Special Projects,ChinaHenan Key Science and Technology Special Projects,ChinaHigh-level Talent Construction of Kunming University of Science and Technology,China

2022YFC29042045236404852004115202101BE070001-019202101AT070116202001AU070045202302AB080002231100320300KKZ7201952006

2024

10.1007/s11771-024-5606-7

中南大学学报(英文版)
中南大学

中南大学学报(英文版)

CSTPCDEI
影响因子：0.47
ISSN：2095-2899
年,卷(期)：2024.31(4)
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