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A qualitative study on the retention of mercury from SO₂-containing process gases on copper smelter
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.ORCID iD: 0000-0003-1511-8020
Luleå tekniska universitet.
2001 (English)In: Canadian metallurgical quarterly, ISSN 0008-4433, E-ISSN 1879-1395, Vol. 40, no 2, p. 161-168Article in journal (Refereed) Published
Abstract [en]

Mercury present in process gases can to some extent be removed in dust filters such as textile bag house filters. The removal efficiency in such filters is dependent on gas composition, gas temperature and properties of dust particles collected in the filter. In the present study, laboratory scale experiments were conducted to study qualitatively the influence of different types of dusts on the retention of mercury in SO2-containing gases. A gas mixture composed of N2, SO2, O2 and Hg was passed through a textile filter covered with dust. Two different types of dust were used in the experiments: one dust containing mainly Cu- and Fe-sulphides and Fe-oxides and one containing mainly Cu-, Fe, and Zn-oxides and -sulphates. The dusts were studied using microprobe equipment after exposure to the mercury-containing gas. Thermodynamic calculations were carried out for comparison with the experimental results. The study shows that mercury is mainly associated with partially roasted chalcopyrite particles.

Place, publisher, year, edition, pages
2001. Vol. 40, no 2, p. 161-168
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-10050Local ID: 8ce9b4d0-7007-11db-962b-000ea68e967bOAI: oai:DiVA.org:ltu-10050DiVA, id: diva2:982990
Note
Validerad; 2001; 20061106 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-01-19Bibliographically approved

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Samuelsson, Caisa

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