Controlled Hydrolysis of TiO2 from HCl Digestion Liquors of Ilmenite

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Title

Controlled Hydrolysis of TiO2 from HCl Digestion Liquors of Ilmenite

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Description

Traditionally, industrial scale production of the TiO2 pigment is achieved by hydrolysis from H2SO4 solution or by hydrolysis of TiCl4. However, the H2SO4 route produces FeSO4 waste, which is problematic, and the TiCl4 route requires a high grade rutile feedstock or chemically upgraded ilmenite (FeTiO3). Here, we investigate a direct route from ilmenite to TiO2 using aqueous HCl. New Zealand ilmenite digested in 35 wt % HCl to achieve a solution containing typically 1.18 mol kg–1 Fe(aq)2+ and...

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Other

Date created

28 Apr, 2022

Creator

Richard G. Haverkamp / Kia S. Wallwork / Mark R. Waterland / Qinfen Gu / Justin A. Kimpton

URL

https://figshare.com/articles/journal_contribution/Controlled_Hydrolysis_of_TiO_sub_2_sub_from_HC...

Related subjects

poorly crystalline materials / industrial scale production / commercial scale production / 4 + sup / 2 + sup / 18 mol kg / 14 mol kg / polymorph control may / 4 sub / 3 sub / 2 sub / route produces feso / using aqueous hcl / hcl digestion liquors / structure determining agents / pigment grade material / chemically upgraded ilmenite / 4 mol h / anatase hydrate formation / iron may / route requires / direct route / surface adsorption / structural template / sodium citrate / readily removed / range order / raman spectroscopy / per mole / latter enabling / kinetic rather / ilmenite traditionally / ilmenite feasible / citric acid / anatase hydrate / 35 wt / Biophysics / Biochemistry / Cell Biology / Pharmacology / Biotechnology / Environmental Sciences not elsewhere classified / Chemical Sciences not elsewhere classified / Ecology / Science Policy / Hematology

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