Assimilation and Mineral Formation during Sintering for Blends Containing Magnetite Concentrate and Hematite/Pisolite Sintering Fines.

Effects of Dolomite on Mineral Compositions and Metallurgical Properties of Chromium-Bearing Vanadium–Titanium Magnetite Sinter

“…The increased MgO decreases the sinter strength in the high-silicate sinter. Zhao et al [19][20][21][22] explored the question of whether the increases in the bonding phase content, the refinement of grains, the improvements of compositions, the structures of sinter, and the enhanced sinter strength were related to the increase in MgO content in the low basicity sinter. The effect and mechanism of MgO on the sinter quality were varied and controversial, due to the lack of relevant research.…”

Leaching Dicalcium Silicates from Iron Ore Sinter to Remove Phosphorus and Other Contaminants.

“…Such sinters are generally composed of four groups of phases: iron oxides (ϳ40-ϳ70 vol%), ferrites (most of which are SFCA: Silico-Ferrite of Calcium and Aluminium; ϳ20-ϳ50 vol%), glasses (up to ϳ10 vol%) and dicalcium silicates (up to ϳ10 vol%). 1,2,4,6,9,11,13,14,[17][18][19] Minor phases including quartz, sulphides, pyroxenes, serpentine and lime can also be present, but the total of these rarely accounts for more than a few percent of the total sinter volume. 4,13,14,20) To date, research addressing the mineral constituents of sinter has concentrated on the iron oxides 3,7,12,14,21,22) and ferrite phases.…”

“…3,7,12,21,[23][24][25] The different forms of ferrites have been variously attributed with high strength and reducibility by some researchers and considerable effort has gone into both characterising these phases [26][27][28][29] and developing techniques to maximise their formation in sinters. 1,[4][5][6][9][10][11][12] Although dicalcium silicates and glasses are present in most fluxed hematite/goethite sinters in considerable proportions, their formation in sinters and their effect on sinter properties have not yet been fully explored by researchers. This paper intends to promote the necessity of sintering re-search that focuses on the dicalcium silicate polymorphs as this group of phases may have some significant impacts on the properties of sinter.…”

“…4,13,14,20) To date, research addressing the mineral constituents of sinter has concentrated on the iron oxides 3,7,12,14,21,22) and ferrite phases. 1,[3][4][5][6][9][10][11][12]22) The iron oxides have been considered to be important because there is evidence that the various oxidation/reduction reactions that they undergo during sintering or preheating in the blast furnace can contribute to the formation of cracks which result in sinter degradation. 3,7,12,21,[23][24][25] The different forms of ferrites have been variously attributed with high strength and reducibility by some researchers and considerable effort has gone into both characterising these phases [26][27][28][29] and developing techniques to maximise their formation in sinters.…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Commonly, these investigations have characterised the properties of the ores, granules and other raw feed materials as well as the various mineral assemblages and microstructures of sinters. Data generated have been related to important production and quality parameters (such as strength, reduction degradation and reducibility) with the goal of understanding the complex relationships between raw materials, processing conditions, sinter mineralogy and sinter productivity and quality.…”