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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2015, Volume 66, Issue 4,





GEORGETA PREDEANU, DANIEL-CRISTIAN MIHAIESCU, CORNELIA PANAITESCU
Morphology, Structure and Composition of Some Technological
Wastes Released from Blast Furnace Operation

Abstract:

The purpose of this paper attempts the characterization by optical microscopy of the composition, type and structure of some technological powdered wastes generated from a blast furnace in Romania, in terms of identification of pollution source and their potential for recycling. The samples collected mainly from the primary and fine purification stages were petrographically investigated providing complementary information to physico-chemical methods, particularly valuable and unique on the morphology of a mixture of solid dust particles having different sizes and origins (coal, coke, iron ore). The closely dependent relationship between microstructure and anisotropy of different structural types, allows the evaluation of coal particles, coke morphology and mineral matter. The results can indicate the pollution source from an environmental perspective, as well as the proportion of organic and mineral matter in the dust mixture, in case of their recycling. Keywords: petrography, blast furnace, technological waste dust, sludge, pollution


Issue: 2015, Volume 66, Issue 4
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