2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 8: Non-ferrous, Rotary Kiln, Ferro-alloys, Rare Earth, Coal
| Editors: | Kongoli F, Xueyi G, Shumskiy V, Kozlov P, Capiglia C, Silva AC, Turna T |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2016 |
| Pages: | 350 pages |
| ISBN: | 978-1-987820-50-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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Receiving The Qualitative Rutile Concentrate From Sub-Standard Titanium Slag
Madali Naimanbayev1; Nina Lokhova1; Zhazira Baltabekova2; Galymzhan Maldybaev3; A. E. Abisheva4;1CENTER OF EARTH SCIENCES, METALLURGY AND ORE BENEFICATION, Almaty, Kazakhstan; 2CENTER OF EARTH SCIENCES, METALLURGY AND ORE BENEFICATION, Almaty, Kazakhstan, Kazakhstan; 3KAZAKH NATIONAL RESEARCH TECHNICAL UNIVERSITY, Almaty, Kazakhstan; 4JSC "CENTER OF EARTH SCIENCES, METALLURGY AND ENRICHMENT", Almaty, Kazakhstan;
Type of Paper: Regular
Id Paper: 158
Topic: 6
Abstract:
Integrated utilization of natural resources using energy-saving and waste-free technologies is relevant around the world. This applies to such type of raw material as titanium-magnetite ore. Shortage of ilmenite raw materials in the Republic of Kazakhstan for titanium slag melting challenges the search of alternative titanium-containing raw materials, titanomagnetites in particular. At the same time, there are deposits of indigenous titanomagnetite ores (Velikovskoe, Tymlay, Masalskoe, etc.) of huge reserves, which can become the complex raw material for production of iron, titanium and vanadium. Tymlay field in the South-Eastern part of Chu-Ili watershed is of particular interest, within the Karasay ore unit with iron content of 30,4 and titanium dioxide - 10%, and after beneficiation titano-magnetite concentrate contains Fe-52,4; TiO2-of 16,06%. Technology of titanium-magnetite concentrate ore-thermal melting was developed at Tymlay deposit producing hot metal and low titanium slag that can become the raw material for titanium production using chloride method. Slag produced in course of titanomagnetite ore-smelting consists mainly of alumosilicates and sodium silico titanates, magnesium and calcium titanates, titanium dioxide and lower titanium oxides. In this regard, chemical beneficiation is the main task of researchers handling the problem of low titanium slag processing. Following operations were carried out to improve titanium slag quality: slag sintering with sodium hydroxide; cake leaching with water to remove water-soluble impurities; to reduce the number of operations impurities leaching with hydrochloric acid was combined with pyrohydrolysis of titanic acid; rutile concentrate production (85% TiO2, 7,66% SiO2), silica removal by means of sodium hydroxide solution treatment, finally sellable rutile concentrate was produced with titanium dioxide 91-92% and silica 1,7 to 2,0% content. Based on research results technological scheme of titano-magnetite concentrate processing at Tymlay deposit was proposed producing hot metal and certified rutile concentrate, suitable for chlorination.
Keywords:
Non-Ferrous; Processing; Slag; Technology; Titanomagnetite; Titanium slag; Chemical beneficiation; Titanium dioxide; Rutile;References:
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