D5 Oceania: Output of Iron Ore (Fe content since 1928, gross weight previously) (in thousand metric tons)

2013 ◽  
pp. 754-755
Author(s):  
Keyword(s):  
Iron Ore ◽  
Fe Content

scholarly journals Development of Concentration Technology for Medium-Impregnated Hematite Quartzite of Kryvyirih Iron Ore Basin

2020 ◽  
Vol 16 (6) ◽  
pp. 56-71
Author(s):  
M.I. Stupnik ◽  
◽  
V.V. Peregudov ◽  
V.S. Morkun ◽  
T.A. Oliinyk ◽  
...  
Keyword(s):  
Iron Ore ◽  
Fine Particles ◽  
Research Data ◽  
Mineral Analysis ◽  
Problem Statement ◽  
High Quality ◽  
Iron Extraction ◽  
Fe Content ◽  
Hematite Ore ◽  
First Time

Introduction. Trends in developing Ukraine’s metallurgy in the context of using its mineral raw base indicate prospects for mining hematite quartzite deposits. Problem Statement. The problem of producing high-quality hematite ore concentrates is associated with the fact that aggregates of martite, goethite, marshallit quartz, and other low hard minerals can be easily reground while crushing and grinding. This results in increased content of fine particles (slimes), which decreases selectivity of separating ore and non-metallic minerals. One of the ways to solve this problem is gentle ore grinding Purpose. Developing a technology of dry and wet concentration for hematite quartzite from Kryvyi Rih Iron Ore Basin. Materials and Methods. While conducting the research, a set of methods are used including generalization of research data; chemical and mineral analysis of ore and concentration products prior to and after concentrating by magnetite and gravitation methods; mathematical modeling of processes; technological testing in laboratory and industrial conditions. Results. Magnetic and gravitation separation is used for hematite ore concentration. Sintering ore with Fe content of 55.1% and concentrates of 62.32-64.69% Fe have been produced from hematite ore. Iron extraction in marketable products makes up 73.6-80.49%. Conclusions. There have been developed technologies for dry and wet concentration for hematite quartzites of Kryvyi Rih Iron Ore Basin. For the first time, magnetic separation has been suggested to be used for hematite ore concentration. This has enabled producing concentrates with an iron content over 64.0%, decreasing ore grinding front by at least 40% as compared with the initial one, and reducing operation and capital expenses by over 30%.

scholarly journals Characterization of Chemical Composition and Microstructure of Natural Iron Ore from Muko Deposits

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Abraham J. B. Muwanguzi ◽  
Andrey V. Karasev ◽  
Joseph K. Byaruhanga ◽  
Pär G. Jönsson
Keyword(s):  
Chemical Composition ◽  
Iron Ore ◽  
World Market ◽  
Ore Deposits ◽  
Raw Material ◽  
X Ray Diffraction ◽  
Fe Content ◽  
Natural Iron ◽  
Western Uganda

The study aimed at investigating the chemical composition and microstructure of raw iron ore from the deposits in Muko area (south-western Uganda). The quality of this iron ore was evaluated to establish its suitability to serve as a raw material for iron production. Samples were taken from the six hills of Muko ore deposits and tests carried out to establish their composition and properties. X-ray diffraction and scanning electron microscopy were employed in the investigation and chemical analysis performed to determine the compounds constituting the ore. The quality of this ore was compared to generalized world market standards and ores from other nations. It was found that Muko ore is a rich hematite grade with Fe content above 65%. It has little gangue (<6% SiO2 and 3-4% Al2O3) and low contents of the deleterious elements (P~0.02% and S<0.006%), which correspond to acceptable levels for commercial iron ores.

scholarly journals Development of Concentration Technology for Medium-Impregnated Hematite Quartzite of Kryvyirih Iron Ore Basin

2020 ◽  
Vol 16 (6) ◽  
pp. 56-72
Author(s):  
M.I. Stupnik ◽  
◽  
V.V. Peregudov ◽  
V.S. Morkun ◽  
T.A. Oliinyk ◽  
...  
Keyword(s):  
Iron Ore ◽  
Fine Particles ◽  
Research Data ◽  
Mineral Analysis ◽  
Problem Statement ◽  
High Quality ◽  
Iron Extraction ◽  
Fe Content ◽  
Hematite Ore ◽  
First Time

Introduction. Trends in developing Ukraine’s metallurgy in the context of using its mineral raw base indicate prospects for mining hematite quartzite deposits. Problem Statement. The problem of producing high-quality hematite ore concentrates is associated with the fact that aggregates of martite, goethite, marshallit quartz, and other low hard minerals can be easily reground while crushing and grinding. This results in increased content of fine particles (slimes), which decreases selectivity of separating ore and non-metallic minerals. One of the ways to solve this problem is gentle ore grinding Purpose. Developing a technology of dry and wet concentration for hematite quartzite from Kryvyi Rih Iron Ore Basin. Materials and Methods. While conducting the research, a set of methods are used including generalization of research data; chemical and mineral analysis of ore and concentration products prior to and after concentrating by magnetite and gravitation methods; mathematical modeling of processes; technological testing in laboratory and industrial conditions. Results. Magnetic and gravitation separation is used for hematite ore concentration. Sintering ore with Fe content of 55.1% and concentrates of 62.32-64.69% Fe have been produced from hematite ore. Iron extraction in marketable products makes up 73.6-80.49%. Conclusions. There have been developed technologies for dry and wet concentration for hematite quartzites of Kryvyi Rih Iron Ore Basin. For the first time, magnetic separation has been suggested to be used for hematite ore concentration. This has enabled producing concentrates with an iron content over 64.0%, decreasing ore grinding front by at least 40% as compared with the initial one, and reducing operation and capital expenses by over 30%.

scholarly journals BENEFICIATION OF LOW/OFF GRADE IRON ORE: A REVIEW

2020 ◽  
Vol 8 (8) ◽  
pp. 328-335
Author(s):  
Rubina Sahin
Keyword(s):  
Iron Content ◽  
Iron Ore ◽  
Review Paper ◽  
Industrial Practice ◽  
Research Activities ◽  
Fe Content ◽  
Fundamental Research ◽  
Recovery Percentage ◽  
Mechanical Separation ◽  
Chemical Techniques

The present investigation deals with the recovery of iron values from various Mechanical & Chemical techniques. The main aim of this review paper to determines the Industrial practice and fundamental research activities for the upgradation of   low/ off grade iron ore.  Practically mechanical separation and float flotation methods applicable in different composition and size of iron ore with different recovery percentage of Fe.  Among all applied technique it was found that the iron content of the concentrates is obtained with reduction in SiO2 and Al2O3. After various beneficiation processes Fe content could be enriched from 38% to 60%.

Analysis of Cylindrical Briquette Dimension on Total Iron Content and the Degree of Metallization in Direct Reduction Process of Iron Ore and Iron Sand Mixture

2019 ◽  
Vol 964 ◽  
pp. 19-25 ◽  
Author(s):  
Fakhreza Abdul ◽  
Sungging Pintowantoro ◽  
Alief Bram Hidayatullah
Keyword(s):  
Gas Flow ◽  
Iron Ore ◽  
Raw Materials ◽  
Direct Reduction ◽  
Reduction Process ◽  
Total Content ◽  
Outer Diameter ◽  
Direct Reduction Process ◽  
Sand Mixture ◽  
Fe Content

Indonesia has abundant resources or raw materials, especially the iron sand raw materials. But, the iron sand processing in Indonesia is still low. Even though, the steel demand in Indonesia is still high. So, the iron sand processing product as raw materials in steelmaking is the solution of it. In this research, the study was conducted by using the variation of briquette dimension of mixture of iron sand and iron ore in Direct Reduction process. The aim of this research is to study the effect of briquette dimension on Fe content and degree of metallization of the Direct Reduced Iron (DRI). First, the iron sand and iron ore were crushed and shieved until pass the 50 mesh standar size. Then, iron sand and iron ore were mixed and briquetted based on the variation of dimension. There are three variations of briquette dimension. Then, the briquettes was reduced at 1250°C for 12 hours. The reduced briquettes then were analyzed using XRD, XRF and degree metallization calculation. The result showed that the dimension of briquette affect the Fe content and the degree metallization of DRI. The dimension of briquette will affect the reductor gas flow in the crucible, so the rate and direction of reduction process of iron oxide will be affected too. The best briquette is Briquette B (7.9 cm for inside diameter, 15.1 cm for outer diameter and 19.5 cm for the height), with 75.02% for Fe total content and 66.52% for degree of metallization. This was due to The briquette B has the most evenly diffused dimension either vertically and horizontally.

Sign in / Sign up

Export Citation Format

Share Document