Value-in-use model for chlorination of titania feedstocks

Show simple item record Maharajh, S. Muller, Jacques Zietsman, Johannes Hendrik 2015-10-09T06:09:30Z 2015-10-09T06:09:30Z 2015
dc.description.abstract In the chlorination process for TiO2 pigment production, blends of titania feedstocks such as ilmenite, synthetic rutile (SR), natural rutile, upgraded slag, and chloride-grade slag are reacted with coke and chlorine at a temperature of around 1000°C to form TiCl4, which is the main product, and other waste metal chlorides. TiCl4 is the main feed material for the TiO2 pigment-making process. Feeding different titania materials to the chlorinator affects the amounts of coke and chlorine required for the process, the amount of waste generated, waste disposal costs, the amount of TiCl4 produced, and bed build-up rates. These factors influence the value of the feedstock. Generally, a higher TiO2 feedstock is more valued since less waste is generated and less reagents are consumed. To quantify the impact of different feedstocks on the chlorinator, a techno-economic model was developed to describe the chlorination process and estimate process variables at steady state. This paper describes the development of the model and studies in which the model has been used to quantify the effects of using different feedstocks. en_ZA
dc.description.librarian am2015 en_ZA
dc.description.uri en_ZA
dc.identifier.citation Maharajh, S, Muller, J & Zietsman, JH 2015, 'Value-in-use model for chlorination of titania feedstocks', Journal of the Southern African Institute of Mining and Metallurgy, vol. 115, no. 5, pp. 33-50. en_ZA
dc.identifier.issn 0038-223X (print)
dc.identifier.issn 2225-6253 (online)
dc.language.iso en en_ZA
dc.publisher Southern African Institute of Mining and Metallurgy en_ZA
dc.rights © The Southern African Institute of Mining and Metallurgy, 2015 en_ZA
dc.subject Pigment production en_ZA
dc.subject TiCl4 en_ZA
dc.subject Clorinator en_ZA
dc.subject Disposal costs en_ZA
dc.subject Feeding en_ZA
dc.subject Titania feedstocks en_ZA
dc.title Value-in-use model for chlorination of titania feedstocks en_ZA
dc.type Article en_ZA

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