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%.

scholarly journals Iron-Ore Sintering Process Optimization / Optymalizacja Procesu Aglomeracji Rudy Żelaza

2015 ◽  
Vol 60 (4) ◽  
pp. 2895-2900 ◽  
Author(s):  
M. Fröhlichová ◽  
D. Ivanišin ◽  
A. Mašlejová ◽  
R. Findorák ◽  
J. Legemza
Keyword(s):  
Iron Content ◽  
Iron Ore ◽  
Raw Materials ◽  
Size Composition ◽  
Sintering Process ◽  
Iron Ore Sintering ◽  
Iron Ore Sinter ◽  
A Charge ◽  
Iron Ore Concentrate

The work deals with examination of the influence of the ratio between iron ore concentrate and iron ore on quality of produced iron ore sinter. One of the possibilities to increase iron content in sinter is the modification of raw materials ratio, when iron ore materials are added into sintering mixture. If the ratio is in favor of iron ore sinter, iron content in resulting sintering mixture will be lower. If the ratio is in favor of iron ore concentrate and recycled materials, which is more finegrained, a proportion of a fraction under 0.5 mm will increase, charge permeability property will be reduced, sintering band performance will decrease and an occurrence of solid particulate matter in product of sintering process will rise. The sintering mixture permeability can be optimized by increase of fuel content in charge or increase of sinter charge moisture. A change in ratio between concentrate and iron ore has been experimentally studied. An influence of sintering mixture grain size composition, a charge grains shape on quality and phase composition on quality of the produced iron sinter has been studied.

scholarly journals Evaluation of Recombinant Inbred Lines for Higher Iron and Zinc Content Along with Yield and Quality Parameters in Rice (Oryza sativa L.)

2020 ◽  
Author(s):  
Maini Bhattacharjee ◽  
Kasturi Majumder ◽  
Sabyasachi Kundagrami ◽  
Tapash Dasgupta
Keyword(s):  
Iron Content ◽  
Oryza Sativa L ◽  
Recombinant Inbred Lines ◽  
Zinc Content ◽  
Correlation Study ◽  
Inbred Lines ◽  
Quality Parameters ◽  
Fe Content ◽  
High Zinc ◽  
Iron And Zinc

Rice is one of the most important staple food crops for billions of people throughout the world. It is the cheapest source of dietary energy, protein and minerals for people but poor in micronutrients such as Fe and Zn to eliminate “hidden hunger”. In the present study, a population of 126recombinant inbred lines developed from a cross between Lemont X Satabdi (IET 4786) were used to identify high iron and zinc content coupled with yield and yield attributing traits. Analysis of Variance revealed that a considerable variation in iron and zinc existed among genotypes. The correlation study revealed that number of filled grain was positively associated with panicle length and yield per plant and number of panicles, but no significant positive correlation was observed between grain zinc content and iron content. Zinc and iron content of rice was estimated using Atomic Absorption Spectrophotometer and the samples were prepared by tri-acid digestion method. Among RIL lines, the line 57, 97,120, 48, 99, 124 contained more than 30 ppm Fe and the lines 24, 6, 9, 23, 29, 125 were found to possess more than 50 ppm Zn. The lines 9,6,48 and 57 were recorded to be high yielding with high zinc and Fe content in grain and in future these four lines look promising for multi location trial also. These high Fe and Zn content genotypes can be utilized in future breeding programme as a donor or good source for bio fortification of rice genotypes.

scholarly journals Research in the fluidized bed combustion in the Laboratory for thermal engineering and energy - Part A: Achievements in targeted fundamental research

2019 ◽  
Vol 23 (Suppl. 5) ◽  
pp. 1637-1653
Author(s):  
Borislav Grubor ◽  
Dragoljub Dakic ◽  
Stevan Nemoda ◽  
Milica Mladenovic ◽  
Milijana Paprika ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Circulating Fluidized Bed ◽  
Coal Ash ◽  
Thermal Engineering ◽  
Fluidized Bed Combustion ◽  
Particle Combustion ◽  
Research Activities ◽  
Energy Part ◽  
Char Particle ◽  
Fundamental Research

The paper gives a review of the most important results of extensive targeted fundamental research program on fluidized bed combustion in the Laboratory for Thermal Engineering and Energy of the VINCA Institute of Nuclear Sciences. The paper presents a detailed overview of research activities from the beginning in the second half of the 1970'' up to present days. Starting with the motives for initiating the investigations in this field, the paper highlights various phases of research and points out the main results of all research activities, not only the ones that are focused in this paper. Targeted fundamental research topics that are overviewed in this paper are heat and mass transfer, coal particle fragmentation, char particle combustion, sulfur self-retention by coal ash itself, as well as circulating fluidized bed modeling.

scholarly journals Differences and overlaps between Phd studies in diagnostic microbiology in industrial and academic settings

2019 ◽  
Vol 209 (3) ◽  
pp. 217-223
Author(s):  
Alex van Belkum ◽  
Andreu Coello Pelegrin ◽  
Rucha Datar ◽  
Manisha Goyal ◽  
Mattia Palmieri ◽  
...  
Keyword(s):  
Mixed Models ◽  
Open Innovation ◽  
Academic Needs ◽  
Scientific Rigor ◽  
Funding Model ◽  
Research Activities ◽  
Industrial Setting ◽  
Academic Settings ◽  
Fundamental Research ◽  
Diagnostic Microbiology

AbstractIndustrial and academic needs for innovation and fundamental research are essential and not widely different. Depending on the industrial setting, research and development (R&D) activities may be more focused on the developmental aspects given the need to ultimately sell useful products. However, one of the biggest differences between academic and industrial R&D will usually be the funding model applied and the priority setting between innovative research and product development. Generalizing, companies usually opt for development using customer- and consumer-derived funds whereas university research is driven by open innovation, mostly funded by taxpayer’s money. Obviously, both approaches require scientific rigor and quality, dedication and perseverance and obtaining a PhD degree can be achieved in both settings. The formal differences between the two settings need to be realized and students should make an educated choice prior to the start of PhD-level research activities. Intrinsic differences in scientific approaches between the two categories of employers are not often discussed in great detail. We will here document our experience in this field and provide insights into the need for purely fundamental research, industrial R&D and current mixed models at the level of European funding of research. The field of diagnostics in clinical bacteriology and infectious diseases will serve as a source of reference.

Experiment Study on the High-Phosphorus Hematite Carbothermal Reduction in Microwave Field

2011 ◽  
Vol 291-294 ◽  
pp. 1317-1320
Author(s):  
Zhi Jun He ◽  
Yong Long Jin ◽  
Hui Zhang
Keyword(s):  
Experimental Research ◽  
Iron Content ◽  
Carbothermal Reduction ◽  
Iron Ore ◽  
Microwave Field ◽  
Experiment Study ◽  
High Phosphorus ◽  
Reduction Of Iron ◽  
Speed Up ◽  
Dephosphorization Rate

In the paper, the experimental research on dephosphorization and iron yield for high-phosphorus oolitic hematite by coal-based carbothermal reduction was carried out. It indicated that microwave can speed up the rate of carbothermal reduction of iron ore and strengthen the effects of dephosphorization and increasing iron content. The dephosphorization rate and iron yield of high-phosphorus oolitic hematite exceeding 87.8% and 91.8% by the way of carbothermal reduction in the microwave field and a further fine-grinding and magnetic separation.

Iron ore in Arctic Europe

Polar Record ◽  
1959 ◽  
Vol 9 (61) ◽  
pp. 314-319
Author(s):  
P. A. B. Gethin
Keyword(s):  
Kola Peninsula ◽  
Iron Content ◽  
Iron Ore ◽  
The Arctic ◽  
North West ◽  
Eastern Hemisphere ◽  
Iron Bearing ◽  
North Norway

Iron ore in significant quantities has been found in only four areas in arctic Europe. No deposits are known in arctic Asia or in the arctic islands of the eastern hemisphere. The largest iron-bearing area is in Swedish Lapland of which the total known reserves, mainly magnetite and hematite, are estimated at 2413 million metric tons, with an average iron content of over 63 per cent, or a ferric weight of about 1532 million tons. The greater part of this ore requires no concentration before use. There is a deposit of about 1000 million tons in Sør-Varanger in north Norway, with a low iron content, while the deposit at Yena in Kol'skiy Poluostrov (Kola peninsula) is estimated at nearly 850 million tons of ore with an iron content of 23 to 48 per cent, and like the Varanger ore requires concentration. A deposit with an iron content of 30 to 40 per cent has been investigated recently at Kolari in north-west Finland, but it is not yet worked.

The Evolution of Railway Research and Development at a Heavy Haul Railway

1993 ◽  
Vol 207 (2) ◽  
pp. 89-98
Author(s):  
S Marich ◽  
W Walker
Keyword(s):  
Research And Development ◽  
Iron Ore ◽  
Economic Value ◽  
Research Activities ◽  
Heavy Haul ◽  
Heavy Haul Railway ◽  
Over Time

The economic value of research has been well demonstrated on the BHP Iron Ore heavy haul railroad. The research began when the considerable expansion that occurred soon after the start of operations led to accelerated component deterioration. This raised the possibility of having to curtail production. The paper describes how the nature and direction of the research activities have changed over time, with the programmes becoming more proactive rather than reactive.

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