Archive Page


Blötberget | Nordic Iron Ore


The mineralization in the Blötberget is a so-called "apatite lake ore" which, besides the iron mineral magnetite and hematite, also contains the phosphorus mineral apatite, which previously caused problems in the production of iron. With the technological developments that occurred when the so-called Thomas process invented in 1879, it ...


More Reading

Separate Magnetite From Haematite Iron Ore


A study of reduction and magnetic separation of iron from high iron bauxite ore . the ability to separate the iron as magnetite from the bauxite depends to a large extent on the competing kinetics of the two reactions: the reduction of the haematite to magnetite (equation (1)) and (ii) the formation of hercynite (equation (2)). In order to .


More Reading

Magnetite - sandatlas.org


Banded iron formations are precambrian metasedimentary rocks where the iron-bearing phase is usually either magnetite or hematite. Very rich magnetitic iron ore is in Kiruna (northern Sweden) although the formation details are not clear (it is not banded iron formation). Skarn-related iron ores are also mined although they tend to be less ...


More Reading

Kallak - Beowulf Mining plc


Discovered in the 1940s, the Kallak magnetite iron ore deposit is located about 40km west of the Jokkmokk municipality centre in the County of Norrbotten in Northern Sweden.


More Reading

Production of pelletizing concentrates from ...


70:30 magnetite to haematite ratio (Kumba Iron Ore, 2013). The implications of the lower magnetite to haematite ratio of this bulk sample on the pilot plant mass yield will be highlighted and discussed under the mass balance results. The Bond Ball Mill Work Index (BWI) was determined at a limiting screen of 75 µm. The BWI test was carried …


More Reading

Hematite - Wikipedia


It is mined as the main ore of iron. Varieties include kidney ore, ... (pseudomorphs after magnetite), iron rose and ... Certain types of hematite or iron oxide ...


More Reading

Iron Ores - ore, tons, cent, hematite, magnetite, …


Sweden has immense deposits of iron ore, chiefly mag netite with some specular hematite. The most important deposits are at Grangsberg in Cen tral Sweden, where are specular hematite and magnetite ores containing 62 to 64 per cent iron and 0.9 to 1.5 per cent phosphorus, and at Gellivare, 100 miles from the Gulf of Bothnia, where are …


More Reading

Different Types of Iron Ore - Mineral Processing & …


Metallurgical ContentImpurities in Iron OresHematiteIron Ore FormationOrigin of Iron Ore-BodiesMagnetiteLimoniteSiderite The iron minerals that are at present used as ores are hematite, magnetite, limonite, and siderite; also, occasionally ankerite, goethite, and …


More Reading

Iron ore - Wikipedia


Most large hematite iron-ore deposits are sourced from ... Other sources of magnetite iron ore include metamorphic ... higher prices paid for the iron of Sweden, ...


More Reading

Hematite: A primary ore of iron and a pigment mineral


Uses of Hematite (Iron Ore) Hematite is the world's most important ore of iron. Although magnetite contains a higher percentage of iron and is easier to process, hematite is the leading ore because it is more abundant and present in deposits in many parts of the world. Hematite is mined in some of the largest mines in the world. These …


More Reading

Isotope systematics of the Kiruna magnetite ores, Sweden ...


Request PDF on ResearchGate | Isotope systematics of the Kiruna magnetite ores, Sweden; Part 1, Age of the ore | U-Pb isotope dating of zircons from a granophyric dike complex which crosscuts the Kiirunavaara magnetite-apatite body demonstrates that the ore was emplaced before 1.880 ± 0.003 Ga. Whole-rock Sm-Nd isotope compositions …


More Reading

Hematite Iron Ore - Iron Ore


Hematite Iron Ore. Posted on January 25, 2014 by ironore. There are several types of iron ore. The most commonly mined type is Hematite, particularly in Brazil, China and Australia, where it makes up 96% of all exports. The ore itself is a deep, brownish red colour which is where the name comes from (Haima is the Greek word for blood) and …


More Reading