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Preliminary investigations on alkali leaching kinetics of red sediment ilmenite slag

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dc.contributor.author Laxmi, T.
dc.contributor.author Mohapatra, R.
dc.contributor.author Rao, R.B.
dc.date.accessioned 2018-10-01T12:25:12Z
dc.date.available 2018-10-01T12:25:12Z
dc.date.issued 2013
dc.identifier.citation Korean Journal Of Chemical Engineering, 30(1), 2013: 123-130
dc.identifier.issn 0256-1115
dc.identifier.uri http://ore.immt.res.in/handle/2018/1867
dc.description BRNS
dc.description.abstract The present paper deals with soda ash roasting of red sediment ilmenite (47.03% TiO2) and leaching of obtained titanium rich slag with hydrochloric acid for preparation of synthetic rutile. The experimental conditions used for roasting are Na2CO3 to ilmenite ratio of 1: 1 at 1,223 K for 4 h. This soda ash slag product is subjected to hydrochloric acid leaching to remove the iron content. The optimum conditions for leaching achieved are 6 M hydrochloric acid at 398 K for 2.5 h (10/1 liquid/solid mass ratio) at 100 rpm. Shrinking core model is found to be fit for the experimental results. The apparent activation energy is 37.9 kJ/mol. This process of soda ash roasting is one of the best processes for preparation of high purity synthetic rutile assaying about 97.21% TiO2.
dc.language en
dc.publisher Korean Institute Of Chemical Engineers
dc.relation.isreferencedby SCI
dc.rights Copyright [2013]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subject Chemical Sciences
dc.subject Engineering
dc.title Preliminary investigations on alkali leaching kinetics of red sediment ilmenite slag
dc.type Journal Article
dc.affiliation.author CSIR-IMMT, Bhubaneswar 751013, Odisha, India


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