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Polyvinyl chloride used as a chlorinating and a reducing agent
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
1998 (English)In: Resources, Conservation and Recycling, ISSN 0921-3449, E-ISSN 1879-0658, Vol. 24, no 3-4, p. 257-274Article in journal (Refereed) Published
Abstract [en]

Polyvinyl chloride (PVC) or vinyl is a recyclable material. It can be used as a chlorinating and a reducing agent. Two tests of chlorination and reduction of two different samples of jarosite and hematite were realized using PVC, results are presented in this paper. The chlorination test shows that the HCl gas produced from PVC and heated at ≈250°C can be used as a chlorine source to recover as chlorinated compounds the valuable metals such as Zn, Pb contained in jarosite. The XRD reveals the presence of lead and zinc chlorides in the condensates obtained. The second test of reduction was conducted using a mixture of PVC and hematite treated in a nitrogen atmosphere between 200 and 1000°C. The results show that at low temperature, PVC produces HCl and with kinetic consideration, no reactions can be observed with hematite. However, at high temperature, the weight of the hematite sample decreases by ≈15%, due to the reduction of hematite to iron metal.

Place, publisher, year, edition, pages
1998. Vol. 24, no 3-4, p. 257-274
National Category
Metallurgy and Metallic Materials
Research subject
Process Metallurgy
Identifiers
URN: urn:nbn:se:ltu:diva-7247DOI: 10.1016/S0921-3449(98)00043-3ISI: 000077959100005Scopus ID: 2-s2.0-0344074018Local ID: 5969f7e0-a1ae-11db-8975-000ea68e967bOAI: oai:DiVA.org:ltu-7247DiVA, id: diva2:980136
Note
Godkänd; 1998; 20070111 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Menad, NourreddineBjörkman, Bo

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