- Tytuł:
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Badanie możliwości uzyskania pigmentów żelazowych z odpadów metalurgicznych
Investigations on possibilities of obtainment of ferric pigments from metallurgical wastes - Autorzy:
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Tora, B.
Kurzac, M.
Tajchman, Z. - Powiązania:
- https://bibliotekanauki.pl/articles/1819761.pdf
- Data publikacji:
- 2009
- Wydawca:
- Politechnika Koszalińska. Wydawnictwo Uczelniane
- Tematy:
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odpady metalurgiczne
pigmenty żelazowe
metallurgical wastes
ferric pigments - Opis:
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Historia pigmentów żelazowych jest bardzo długa, starsza nie tylko od historii ludzkiej cywilizacji, ale nawet od dziejów ludzkiego gatunku. Już 350÷400 tysięcy lat temu neandertalczycy (Homo neanderthalensis) i ich poprzednicy, ludzie wyprostowani (Homo erectus), wykorzystali naturalny pigment żelazowy - ochrę - jeśli nie do zdobienia własnych ciał, to przynajmniej do malowania i posypywania ciał swoich zmarłych. Obok hematytu ochra była symbolem życia, a jej czerwony kolor kojarzono z krwią. Ochra, obok innych pigmentów będących związkami żelaza oraz obok węgla drzewnego, była także używana przez malarzy jaskiniowych żyjących w okresie kultury magdaleńskiej. Używano ją do konserwacji i obróbki skór oraz jako pigment używany do malowania wyrobów artystycznych [4]
The goal of the work was verification of utilization of metallurgical wastessludge from Mittal Steel waste pond in Kraków as a pigments. The samples originated as waste materials during iron production there was assumption of their utilization as ferric pigments. A pigment is a material that changes the color of light it reflects as the result of selective color absorption. This physical process differs from fluorescence, phosphorescence, and other forms of luminescence, in which the material itself emits light. The most industrially-important iron ores are chemically iron oxides. Some iron oxides are widely used in ceramic applications, particularly in glazing. Many metal oxides provide the colors in glazes after being fired at high temperatures. Iron oxides yield pigments. Natural iron oxides pigments are called ochres. Many classic paint colors, such as raw and burnt siennas and umbers, are iron-oxide pigments. These pigments have been used in art since the earliest prehistoric art known, the cave paintings at Lascaux and nearby sites. Iron (III) oxide is typically used. Iron pigments are also widely used in the cos metic field. They are considered to be nontoxic, moisture resistant, and nonbleeding. Iron oxides graded safe for cosmetic use are produced synthetically in order to avoid the inclusion of ferrous or ferric oxides, and impurities normally found in naturally occurring iron oxides. Typically, the iron(II) oxide pigment is black, while the iron(III) oxide is red or rust-colored. Iron compounds other than oxides can have other colors. Black oxide converts ferrous materials into magnetite for corrosion resistance purposes. A grade of hematite called MIO (micaceous iron oxide) is used as anti-corrosion paint. Iron oxide pigments come from a variety of sources, both naturally occurring and man-made. This is where naturally occurring iron oxide pigments have value; as they are inherently more translucent yet offer some warm, rich qualities. The very quality of being naturally occurring means these pigments are variable in composition and physical properties, which can result in color variance from one pigment lot to the next. Team of authors is seeking innovative environmental technologies for the treatment of electric furnace slag. In the past research for alternative uses of slag (as a sand-blasting material; as an inert additive in high strength concrete; as an additive in Portland cement; to produce an anti-slippery blacktop material; to produce anti-slippery pavement tiles; or as fettling material to be used in metallurgical smelting furnaces) were conducted. The disposal of solid waste materials into the environment would be potentially hazardous. Moreover, the associated cost of disposal would significantly affect the cost of the ferrous waste processing. Therefore it is essential to find innovative Technologies for the utilisation of the slag. The authors presented results of investigation on utilisation of metallurgical wastes. These wastes are collected in the Pleszew waste pond. The physic and chemical characteristic of the waste is shown. The authors proposed to heat them in temperatures over 600°C. After this process these wastes can be used as pigment in production of concrete.The proposed, simple, technology has to be economically feasible with lowenergy requirements and be easily integrated into the factory's existing equipment. Elaborated technology is waste free. It allows on effective ferrous scrap management.Installation is simple and can be made without significant inputs. - Źródło:
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Rocznik Ochrona Środowiska; 2009, Tom 11; 571-582
1506-218X - Pojawia się w:
- Rocznik Ochrona Środowiska
- Dostawca treści:
- Biblioteka Nauki
Artykuł