Synthesis of rutile titanium dioxide from Russian raw materials

Герасимова, Л. Г.; Shchukina, E. S.; Маслова, М. В.; Gladkikh, S. N.; Garaeva, G.; Kolobkova, V. M.

doi:10.1134/s1995421217010099

Cited by 5 publications

(2 citation statements)

References 1 publication

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“…SL3-is the protonated form of AM-4 obtained according to the methods described in [3,18]. STA-is ammonium sulfate oxytitanium, (NH 4 ) 2 TiO(SO 4 ) 2 •H 2 O, the pre-product of titanite concentrate reprocessing (PJSC "PhosAgro", Apatity, Russia) [20].…”

Section: Materials and Their Abbreviationsmentioning

confidence: 99%

A Synthetic Analog of the Mineral Ivanyukite: Sorption Behavior to Lead Cations

et al. 2022

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The production of electrolytic nickel includes the stage of leaching of captured firing nickel matte dust. The solutions formed during this process contain considerable amounts of Pb, which is difficult to extraction due to its low concentration upon the high-salt background. The sorption of lead from model solutions with various compositions by synthetic and natural titanosilicate sorbents (synthetic ivanyukite-Na-T (SIV), ivanyukite-Na-T, and AM-4) have been investigated. The maximal sorption capacity of Pb is up to 400 mg/g and was demonstrated by synthetic ivanyukite In solutions with the high content of Cl− (20 g/L), extraction was observed only with a high amount of Na (150 g/L). Molecular mechanisms and kinetics of lead incorporation into ivanyukite were studied by the combination of single-crystal and powder X-ray diffraction, microprobe analysis, and Raman spectroscopy. Incorporation of lead into natural ivanyukite-Na-T with the R3m symmetry by the substitution 2Na+ + 2O2− ↔ Pb2+ + □ + 2OH− leds to its transformation into the cubic P−43m Pb-exchanged form with the empirical formulae Pb1.26[Ti4O2.52(OH)1.48(SiO4)3]·3.32(H2O).

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Section: Materials and Their Abbreviationsmentioning

confidence: 99%

A Synthetic Analog of the Mineral Ivanyukite: Sorption Behavior to Lead Cations

et al. 2022

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“…The most popular additives are titanium dioxide and silica [37]. They are usually added as individual additives [17,38] In this case, phase composition remains the same. The calcined material was mechanically activated for disaggregation and preparation of nanosized particles.…”

Section: Preparation Of Synthetic Titanium-bearing Filler For High-tementioning

confidence: 99%

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

et al. 2020

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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 (CaSiTiO5). 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.

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Graphical Representation Reliability of Experimental Data Concerning to Structural and Surface Properties of Substances

Mayorov

Gorbacheva

Velyaev

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Using experimental data on the pore distribution of a sample of magnesium-aluminum layered double hydroxide, various variants of their graphical representation are analyzed. It is shown that graphical interpretation of the obtained data in the coordinates dV/dD – D (dV/dlog(D) – D) or V – D is not of practical (scientific) interest and may lead to incorrect conclusions about the predominance of pores of a certain diameter in the sample and other errors. It is concluded that to avoid possible errors and provide the most complete information about the pore distribution of the studied samples, the presented graphic materials should be supplemented with histograms of the pore distribution.

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Synthesis of rutile titanium dioxide from Russian raw materials

Cited by 5 publications

References 1 publication

A Synthetic Analog of the Mineral Ivanyukite: Sorption Behavior to Lead Cations

A Synthetic Analog of the Mineral Ivanyukite: Sorption Behavior to Lead Cations

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

Graphical Representation Reliability of Experimental Data Concerning to Structural and Surface Properties of Substances

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