Titanite-Containing Mineral Compositions and Their Chemical Treatment with Preparation of Functional Materials

The waste of apatite-nepheline ore processing was chosen as the material of study for the present investigation. The chemical and phase compositions have been analyzed and the route of the new technology has been developed. Treatment of the waste with diluted hydrochloric acid enables to separate ap...

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Main Authors:	Lidia G. Gerasimova, Anatoly I. Nikolaev, Ekaterina S. Shchukina, Marina V. Maslova
Format:	Article
Language:	English
Published:	MDPI AG 2020-04-01
Series:	Materials
Subjects:	mineral compositions chemical treatment titanite concentrate decomposition leaching
Online Access:	https://www.mdpi.com/1996-1944/13/7/1599

id	doaj-1f4e1429c17641d180accfa69daec3be
record_format	Article
spelling	doaj-1f4e1429c17641d180accfa69daec3be2020-11-25T02:23:41ZengMDPI AGMaterials1996-19442020-04-01131599159910.3390/ma13071599Titanite-Containing Mineral Compositions and Their Chemical Treatment with Preparation of Functional MaterialsLidia G. Gerasimova0Anatoly I. Nikolaev1Ekaterina S. Shchukina2Marina V. Maslova3Tananaev Institute of Chemistry of Kola Science Centre, Russian Academy of Sciences, 26aFersman Street, 184209 Apatity, RussiaNanomaterials Research Centre of Kola Science Centre, Russian Academy of Sciences, 14 Fersman Street, 184209 Apatity, RussiaTananaev Institute of Chemistry of Kola Science Centre, Russian Academy of Sciences, 26aFersman Street, 184209 Apatity, RussiaTananaev Institute of Chemistry of Kola Science Centre, Russian Academy of Sciences, 26aFersman Street, 184209 Apatity, RussiaThe waste of apatite-nepheline ore processing was chosen as the material of study for the present investigation. The chemical and phase compositions have been analyzed and the route of the new technology has been developed. Treatment of the waste with diluted hydrochloric acid enables to separate apatite, nepheline, titano-magnetite minerals from titanite (CaSiTiO<sub>5</sub>). The obtained titanite concentrate contains 30–32% of titanium dioxide. Interaction of titanite with hydrochloric acid under heating and stirring conditions results in calcium leaching. The titanite decomposition is accompanied by titanium and silica oxides precipitation. The resulting solid has been used as a precursor for the synthesis of functional materials. Mechanochemical activation of the precursor provides the structural and morphological disorder of the initial particles. Thermodynamic stability of activated particles is achieved by chemisorption or roasting.https://www.mdpi.com/1996-1944/13/7/1599mineral compositionschemical treatmenttitaniteconcentratedecompositionleaching
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Lidia G. Gerasimova Anatoly I. Nikolaev Ekaterina S. Shchukina Marina V. Maslova
spellingShingle	Lidia G. Gerasimova Anatoly I. Nikolaev Ekaterina S. Shchukina Marina V. Maslova Titanite-Containing Mineral Compositions and Their Chemical Treatment with Preparation of Functional Materials Materials mineral compositions chemical treatment titanite concentrate decomposition leaching
author_facet	Lidia G. Gerasimova Anatoly I. Nikolaev Ekaterina S. Shchukina Marina V. Maslova
author_sort	Lidia G. Gerasimova
title	Titanite-Containing Mineral Compositions and Their Chemical Treatment with Preparation of Functional Materials
title_short	Titanite-Containing Mineral Compositions and Their Chemical Treatment with Preparation of Functional Materials
title_full	Titanite-Containing Mineral Compositions and Their Chemical Treatment with Preparation of Functional Materials
title_fullStr	Titanite-Containing Mineral Compositions and Their Chemical Treatment with Preparation of Functional Materials
title_full_unstemmed	Titanite-Containing Mineral Compositions and Their Chemical Treatment with Preparation of Functional Materials
title_sort	titanite-containing mineral compositions and their chemical treatment with preparation of functional materials
publisher	MDPI AG
series	Materials
issn	1996-1944
publishDate	2020-04-01
description	The waste of apatite-nepheline ore processing was chosen as the material of study for the present investigation. The chemical and phase compositions have been analyzed and the route of the new technology has been developed. Treatment of the waste with diluted hydrochloric acid enables to separate apatite, nepheline, titano-magnetite minerals from titanite (CaSiTiO<sub>5</sub>). The obtained titanite concentrate contains 30–32% of titanium dioxide. Interaction of titanite with hydrochloric acid under heating and stirring conditions results in calcium leaching. The titanite decomposition is accompanied by titanium and silica oxides precipitation. The resulting solid has been used as a precursor for the synthesis of functional materials. Mechanochemical activation of the precursor provides the structural and morphological disorder of the initial particles. Thermodynamic stability of activated particles is achieved by chemisorption or roasting.
topic	mineral compositions chemical treatment titanite concentrate decomposition leaching
url	https://www.mdpi.com/1996-1944/13/7/1599
work_keys_str_mv	AT lidiaggerasimova titanitecontainingmineralcompositionsandtheirchemicaltreatmentwithpreparationoffunctionalmaterials AT anatolyinikolaev titanitecontainingmineralcompositionsandtheirchemicaltreatmentwithpreparationoffunctionalmaterials AT ekaterinasshchukina titanitecontainingmineralcompositionsandtheirchemicaltreatmentwithpreparationoffunctionalmaterials AT marinavmaslova titanitecontainingmineralcompositionsandtheirchemicaltreatmentwithpreparationoffunctionalmaterials
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Titanite-Containing Mineral Compositions and Their Chemical Treatment with Preparation of Functional Materials

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