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Recycling process w...
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Ikumapayi, FataiLuleå tekniska universitet,Industriell miljö- och processteknik
(författare)
Recycling process water in sulfide flotation, Part B: Effect of H2O2 and process water components on sphalerite flotation from complex sulfide
- Artikel/kapitelEngelska2012
Förlag, utgivningsår, omfång ...
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2012-11-01
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Springer Science and Business Media LLC,2012
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printrdacarrier
Nummerbeteckningar
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LIBRIS-ID:oai:DiVA.org:ltu-13664
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https://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-13664URI
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https://doi.org/10.1007/bf03402456DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
Anmärkningar
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Validerad; 2012; 20121113 (hrao)
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Hydrogen peroxide production was measured during the grinding of a complex sulfide ore, and its oxidizing effect on solid surfaces was investigated using Fourier transform infrared spectroscopy (FTIR) with diffuse reflectance attachment measurement. In turn, an attempt was made to correlate the formation of hydrogen peroxide, surface oxidation and sphalerite flotation. Additionally, in order to predict and minimize detrimental production problems due to the recycling of process water in sulfide ore processing, the effects of major components of calcium and sulfate species present in recycled process water and the effect of temperature on sphalerite flotation were investigated through bench-scale flotation tests using complex sulfide ores. The significance of process water species in flotation was studied using tap water, process water and simulated water containing calcium and sulfate ions. Formation of hydrogen peroxide was revealed during the grinding of the complex sulfide ore, and its formation was counteracted by diethylenetriamine (DETA). The FTIR spectrum of the pulp solid fraction showed varying degrees of oxidized surface species, which are related to the concentration of H2O2 analyzed in pulp liquid. Bench-scale flotation using two different complex sulfide ores showed that sphalerite recovery is better in process water than in tap water. Flotation results also indicated a varied recovery of sphalerite at different temperatures in either tap water or process water.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Sis, HikmetMining Engineering Department, Inonu University, Malatya, Turkey
(författare)
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Johansson, BjörnDepartment of Process Technology, Boliden Mineral AB, Boliden, Sweden
(författare)
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Hanumantha Rao, KotaLuleå tekniska universitet,Industriell miljö- och processteknik(Swepub:ltu)hrao
(författare)
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Luleå tekniska universitetIndustriell miljö- och processteknik
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Minerals & metallurgical processing: Springer Science and Business Media LLC29:4, s. 192-1980747-9182
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Ingår i:Mining, Metallurgy & Exploration: Springer Science and Business Media LLC29:4, s. 192-1982524-34622524-3470
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