A kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slags

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dc.contributor.advisorVon Blottnitz, Harroen_ZA
dc.contributor.authorPillay, Kriveshinien_ZA
dc.date.accessioned2014-07-31T11:14:33Z
dc.date.available2014-07-31T11:14:33Z
dc.date.issued2001en_ZA
dc.descriptionBibliography: leaves 103-108.
dc.description.abstractChromium can exist in a number of oxidation states but the environmentally stable forms are trivalent (Cr(III)) and hexavalent (Cr(VI)) chromium. These two forms are noted for their different degrees of toxicity and mobility. Hexavalent chromium is more toxic and mobile and has been responsible for a number of illnesses in humans (Sheehan et. al., 1991). Elemental chromium and its compounds have a variety of uses in the industrial sector. The ferrometallurgical industry in particular makes use of chromium since this element imparts properties such as hardness and strenght to stainless steel. However, this industry also produces slags that contain residual amounts of chromium oxide (Cr[2]O[3]) along with other constituents such as calcium oxide (CaO). Thermodynamic data from the literature, has shown that Cr[2]O[3] can undergo oxidation at ambient temperature when in contact with CaO and atmospheric oxygen (Kilau and Shah, 1984; Hattori et al., 1978). Furthermore, the oxidation of Cr[2]O[3] in the presence of Ca(OH)[2] has also been observed at ambient temperature (Petersen, 1998).en_ZA
dc.identifier.apacitationPillay, K. (2001). <i>A kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slags</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/5415en_ZA
dc.identifier.chicagocitationPillay, Kriveshini. <i>"A kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slags."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2001. http://hdl.handle.net/11427/5415en_ZA
dc.identifier.citationPillay, K. 2001. A kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slags. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Pillay, Kriveshini AB - Chromium can exist in a number of oxidation states but the environmentally stable forms are trivalent (Cr(III)) and hexavalent (Cr(VI)) chromium. These two forms are noted for their different degrees of toxicity and mobility. Hexavalent chromium is more toxic and mobile and has been responsible for a number of illnesses in humans (Sheehan et. al., 1991). Elemental chromium and its compounds have a variety of uses in the industrial sector. The ferrometallurgical industry in particular makes use of chromium since this element imparts properties such as hardness and strenght to stainless steel. However, this industry also produces slags that contain residual amounts of chromium oxide (Cr[2]O[3]) along with other constituents such as calcium oxide (CaO). Thermodynamic data from the literature, has shown that Cr[2]O[3] can undergo oxidation at ambient temperature when in contact with CaO and atmospheric oxygen (Kilau and Shah, 1984; Hattori et al., 1978). Furthermore, the oxidation of Cr[2]O[3] in the presence of Ca(OH)[2] has also been observed at ambient temperature (Petersen, 1998). DA - 2001 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2001 T1 - A kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slags TI - A kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slags UR - http://hdl.handle.net/11427/5415 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/5415
dc.identifier.vancouvercitationPillay K. A kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slags. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2001 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/5415en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemical Engineeringen_ZA
dc.titleA kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slagsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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