高级搜索

含铊硫铁矿生产硫酸过程中铊的排放特性

,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

王春霖, 陈永亨, 张平, 张永波, 王津, 齐剑英. 含铊硫铁矿生产硫酸过程中铊的排放特性[J]. 环境化学, 2011, 30(11): 1894-1899.
引用本文: 王春霖, 陈永亨, 张平, 张永波, 王津, 齐剑英. 含铊硫铁矿生产硫酸过程中铊的排放特性[J]. 环境化学, 2011, 30(11): 1894-1899.
shu
WANG Chunlin, CHEN Yongheng, ZHANG Ping, ZHANG Yongbo, WANG Jin, QI Jianying. THALLIUM RELEASE IN THE PROCESS OF SULFUR ACID PRODUCTION WITH Tl-CONTAINING PYRITE ROASTING[J]. Environmental Chemistry, 2011, 30(11): 1894-1899.
Citation: WANG Chunlin, CHEN Yongheng, ZHANG Ping, ZHANG Yongbo, WANG Jin, QI Jianying. THALLIUM RELEASE IN THE PROCESS OF SULFUR ACID PRODUCTION WITH Tl-CONTAINING PYRITE ROASTING[J]. Environmental Chemistry, 2011, 30(11): 1894-1899.
shu

含铊硫铁矿生产硫酸过程中铊的排放特性

  • 1.

    广东省环境科学研究院, 环境科学研究中心, 广州, 510045;

  • 2.

    广州大学环境科学与工程学院, 广州, 510006;

  • 3.

    环境保护部华南环境科学研究所, 广州, 510655

  • 基金项目:

    国家自然科学基金委-广东省人民政府联合基金(U0633001)

    国家青年科学基金资助项目(No.40903044)资助.

THALLIUM RELEASE IN THE PROCESS OF SULFUR ACID PRODUCTION WITH Tl-CONTAINING PYRITE ROASTING

  • 1.

    Guangdong Provincial Academy of Environmental Science, Guangzhou, 510045, China;

  • 2.

    School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China;

  • 3.

    South China Institute of Environmental Science, Ministry of Environmental Protection, Guangzhou, 510655, China

  • Fund Project:

  • 摘要: 通过焙烧实验探讨了含铊硫铁矿生产硫酸过程中铊的排放特性.结果表明,硫铁矿焙烧过程中,铊排放与焙烧温度、停留时间、焙烧气氛、硫铁矿的粒度等因素有关.不同的温度条件下,铊排放率不同,这主要是与矿石中铊的赋存形态有关;实验条件下,550 ℃-950 ℃是Tl排放的主要阶段,Tl排放量约占硫铁矿中总Tl的33.9%.Tl的排放率随停留时间的增加呈现增大的趋势,Tl在10 min的停留时间内急剧排放,此阶段为Tl排放的主要阶段,其排放率达到30.6%.焙烧气氛对铊的排放存在促进或阻滞的影响,氧气流量小于100 mL·min-1时,铊排放率随氧气流量的增加而增加,而氧气流量高于100 mL·min-1时,铊排放率随氧气流量的增加而减小.此外,硫铁矿的粒度对Tl的排放也存在一定的影响,随着硫铁矿粒度的增加,在相同的时间内Tl排放率有降低的趋势.
    Abstract: In this paper, the characteristics of thallium emission during sulfuric acid production with Tl-containing pyrite roasting were investigated by roasting experiments in tube furnace. Results indicate that thallium emission was dependent on roasting temperature, retention time, roasting atmosphere and particle size of pyrite during pyrite roasting. Emission rates of thallium were different at different roasting temperatures, which were determined by the speciation of thallium present in the pyrite. Under the experimental condition, the main period of thallium emission, which was about 33.9% of total thallium content in the pyrite, was in the temperature range between 550 ℃ and 950 ℃. Thallium emission rates were enhanced gradually with retention time. Thallium was rapidly emitted within the first 10 minutes, with an emission rate of 30.6%. Roasting atmosphere might accelerate or block the emission of thallium. When the flow rate of oxygen was below 100 mL·min-1, thallium emission rates increased with the flow of oxygen, and vice versa. Furthermore, particle size of pyrite also had some effect on thallium emission, with greater particle size of pyrite yielding decreased thallium emission rates.
  • 加载中
  • [1] Seiler H G, Sigel H. Handbook on Toxicity of Inorganic Compounds [M]. New York: Marcel Dekker, Inc. 1988
    [2] Zitko V. Toxicity and pollution potential of thallium [J]. Science of the Total Environment, 1975, 4: 185-192
    [3] Peter A L, Viraraghavan T. Thallium: a review of public health and environmental concerns [J]. Environment International, 2005, 31: 493-501
    [4] Keith L H, Telliard W A. Priority pollutants. I. A perspective view [J]. Environmental Science and Technology, 1979, 13: 416-417
    [5] Lis J, Pasieczna A, Karbowska B, et al. Thallium in soils and stream sediments of a Zn-Pb mining and smelting area [J]. Environmental Science and Technology, 2003, 37: 4569-4572
    [6]
    [7] 张平,杨春霞,陈永亨,等.铊在黄铁矿中的相态分布及碳酸盐在其释放过程中的作用[J].环境科学学报,2007,27(1):166-170
    [8] 周涛发,范裕,袁峰,等.铊的环境地球化学研究进展及铊污染的防治对策[J].地质评论,2005,51(2):181-188
    [9] Xiao T F, Guha J, Boyle D. High thallium content in rocks associated with Au-As-Hg-Tl and coal mineralization and its adverse environmental potential in SW Guizhou, China [J]. Geochemistry: Exploration, Environment, Analysis, 2004, 4: 243-252
    [10] Yang C X, Chen Y H, Peng P A, et al. Distribution of natural and anthropogenic thallium in highly weathered soils [J]. Science of the Total Environment, 2005, 341: 159-172
    [11] Nriagu J O. History, Production, and Uses of Thallium//Nriagu J O, editor. Thallium in the Environment [M]. New York: Wiley-Interscience Publication, 1998: 1-14
    [12] Lin T S, Nriagu J O. Thallium speciation in the Great Lake [J]. Environmental Science and Technology, 1999, 33: 3394-3397
    [13] Jacobson A R, McBride M B, Baveye P, et al. Environmental factors determining the trace-level sorption of silver and thallium to soils [J]. The Science of Total Environment, 2005, 345: 192-205
    [14] Wang Chun-lin, Zhang Ping, Chen Yong-heng, et al. Study on the purification property of pyrite and its spectra on the processing of metal-bearing wastewater [J]. Environmental Earth Sciences, 2010, 61: 939-945
    [15] Wang Chunlin, Zhang Ping, Chen Yongheng, et al. The spectra of pyrite and its cinder on removing thallium from simulated Tl-containing wastewater .4th International Conference on Bioinformatics and Biomedical Engineering, 2010
    [16] Zhang L, Huang T, Liu N, et al. Sorption of thallium (Ⅲ) ions from aqueous solutions using titanium dioxide nanoparticles [J]. Microchim Acta, 2009, 165: 73-78
    [17] 李德先.表生条件下铊矿物的氧化溶解动力学及其反应性迁移实验研究.北京:中国科学院研究生院博士学位论文,2005
    [18] 张宝贵,张忠.铊矿床──环境地球化学研究综述[J].贵州地质,1996,13(1):38-44
    [19]
    [20]
    [21] 王春霖,张平,陈永亨,等.黄铁矿焙烧过程中铊析出影响因素及其烧渣中重金属的相态分布研究[J].环境污染与防治,2008,30(7):1-4
    [22] Kotlyar V G, Saranin A A, Zotov A V, et al. Thallium overlayers on Si(Ⅲ) studied by scanning tunneling microscopy [J]. Surface Science Letters, 2003, 543: 663-667
    [23] WANG Chunlin,CHEN Yongheng,PAN Jianyang,et al. Speciation analysis of metals (Tl, Cd and Pb) in Tl-containing pyrite and its cinder from Yunfu Mine, China, by ICP-MS with sequential extraction [J]. Chinese Journal of Geochemistry, 2010, 29: 113-119
    [24] 王春霖,张平,陈永亨,等.黄铁矿及其烧渣中镉、铊和铅的形态及测定[J].环境化学,2008,27(3):385-386
    [25] 熊斐,华永明,盛昌栋,等.燃烧条件下硫铁矿(FeS2)颗粒的分解特性[J].燃烧科学与技术,2000,6(3):280-283
    [26] 卢加诺夫.含砷金矿石的处理工艺[J].国外金属矿选矿,2004,(11):14-18
    [27] 王正民.沸腾炉焙烧高铁闪锌精矿工艺过程的研究.西安:西安建筑科技大学硕士学位论文,2007
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  1123
  • HTML全文浏览数:  1089
  • PDF下载数:  330
  • 施引文献:  0
出版历程
  • 收稿日期:  2011-01-12
王春霖, 陈永亨, 张平, 张永波, 王津, 齐剑英. 含铊硫铁矿生产硫酸过程中铊的排放特性[J]. 环境化学, 2011, 30(11): 1894-1899.
引用本文: 王春霖, 陈永亨, 张平, 张永波, 王津, 齐剑英. 含铊硫铁矿生产硫酸过程中铊的排放特性[J]. 环境化学, 2011, 30(11): 1894-1899.
shu
WANG Chunlin, CHEN Yongheng, ZHANG Ping, ZHANG Yongbo, WANG Jin, QI Jianying. THALLIUM RELEASE IN THE PROCESS OF SULFUR ACID PRODUCTION WITH Tl-CONTAINING PYRITE ROASTING[J]. Environmental Chemistry, 2011, 30(11): 1894-1899.
Citation: WANG Chunlin, CHEN Yongheng, ZHANG Ping, ZHANG Yongbo, WANG Jin, QI Jianying. THALLIUM RELEASE IN THE PROCESS OF SULFUR ACID PRODUCTION WITH Tl-CONTAINING PYRITE ROASTING[J]. Environmental Chemistry, 2011, 30(11): 1894-1899.
shu

含铊硫铁矿生产硫酸过程中铊的排放特性

  • 1.  广东省环境科学研究院, 环境科学研究中心, 广州, 510045;
  • 2.  广州大学环境科学与工程学院, 广州, 510006;
  • 3.  环境保护部华南环境科学研究所, 广州, 510655
  • 收稿日期:  2011-01-12
基金项目:

国家自然科学基金委-广东省人民政府联合基金(U0633001)

国家青年科学基金资助项目(No.40903044)资助.

摘要: 通过焙烧实验探讨了含铊硫铁矿生产硫酸过程中铊的排放特性.结果表明,硫铁矿焙烧过程中,铊排放与焙烧温度、停留时间、焙烧气氛、硫铁矿的粒度等因素有关.不同的温度条件下,铊排放率不同,这主要是与矿石中铊的赋存形态有关;实验条件下,550 ℃-950 ℃是Tl排放的主要阶段,Tl排放量约占硫铁矿中总Tl的33.9%.Tl的排放率随停留时间的增加呈现增大的趋势,Tl在10 min的停留时间内急剧排放,此阶段为Tl排放的主要阶段,其排放率达到30.6%.焙烧气氛对铊的排放存在促进或阻滞的影响,氧气流量小于100 mL·min-1时,铊排放率随氧气流量的增加而增加,而氧气流量高于100 mL·min-1时,铊排放率随氧气流量的增加而减小.此外,硫铁矿的粒度对Tl的排放也存在一定的影响,随着硫铁矿粒度的增加,在相同的时间内Tl排放率有降低的趋势.

English Abstract

    全文HTML

参考文献 (27)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心