Iron ore – A new world market?

1981 ◽  
Vol 1 (1) ◽  
pp. 48-57
Author(s):  
Olle af Geijerstam ◽  
Jim Cordts
Keyword(s):  
Iron Ore ◽  
1973 ◽  
Vol 139 (1) ◽  
pp. 148
Author(s):  
Peter R. Odell ◽  
Gerald Manners

1972 ◽  
Vol 13 (4) ◽  
pp. 650
Author(s):  
P. Lafleur ◽  
Gerald Manners
Keyword(s):  
Iron Ore ◽  

1990 ◽  
Vol 7 (2) ◽  
pp. 4-5
Author(s):  
Frederic F Clairmonte
Keyword(s):  

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Abraham J. B. Muwanguzi ◽  
Andrey V. Karasev ◽  
Joseph K. Byaruhanga ◽  
Pär G. Jönsson

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.


Author(s):  
N. G. Zinov’eva

The crisis of the world economic system, erupted in the end of 2019 against the background of COVID-19 expansion resulted in considerable drop of the world steel products production practically in all the countries of the world. Decrease of steel production began in the IIH of 2019, mainly in July-August of 2019 and further in March-April of 2020. In the IQ of 2020, the world steel production declined by 1.4% down to 443 million tons comparing with the analogue period of 2019. At that China demonstrated growth by 1.2%, while in the EC counties the decrease accounted for 10%, in North America counties – by 4%, in South America countries – 7.1%, other countries of Asia, Africa and CIS also demonstrated the decrease. The dynamics of prices variation on some steel products, iron ore presented, which give the idea of the market state and tendencies of its variation in 2019–2020. In China in April of 2020 after cancellation of quarantine measures, a restoration of the industry began, the economy of China transferred from decline to growth and an active growth of domestic consumption of steel products got a significant effect not only on the volume of its production, but also made corrections in China’s behavior at the world market. As a result of year 2020, steel production in China exceeded one billion tons – 1054.4 million tons, which is 5.2% more comparing with 2019. Production of finished products increased also, import of iron ore into China in 2020 accounted for 1172 billion tons, which is 9.5% more comparing with 2019. As a result of 2020, the steel companies of China exported 53.7 million tons of steel, which is 16.5% lower than the 2019 index. Further the Chinese export will be contributed by an increase of demand at the world market and cancellation of restriction measures, imposed by some countries. While at all the regions of the world the crisis resulted in termination of some projects or their delays, in China against the background of the pandemic, several companies did nor cancel their investment plans as well as construction and commissioning of new plants was going on. Under conditions of the crisis the support of the state was very important, since the demand declined in all the industries, therefore many countries took urgent measures for stabilization of economies and support of population. Within the period of the pandemic, the China government bodies elaborated some measures to overcome its negative effect on the economy. In particular, the measures include allocation of money to stimulate the domestic consumption of steel products. In total in 2020 it was planned to invest about 800 billion of yuan (about USD 115 billion) in capital assets. According to forecasts, in 2021 comparing with 2020, the production and apparent consumption of steel in China will increase approximately by 2%, actual demand will increase by higher rate. The steel products with high added value will be in higher demand, including flat rolled products, rolled products of special steels, seamless pipes etc.


1984 ◽  
Vol 26 (1) ◽  
pp. 83-111 ◽  
Author(s):  
Rebecca J. Scott

In the middle decades of the nineteenth century, as slavery was disappearing elsewhere in the New World, slave-based plantation production of sugar in Cuba reached remarkable heights of technological sophistication and output. In 1868 Cuba produced 720,250 metric tons of sugar, more than 40 percent of the cane sugar reaching the world market in that year. Yet just as production reached these levels, the abolition of slavery in Cuba was initiated, beginning a process of slave emancipation that was to last nearly twenty years. Yet just as production reached these levels, the abolition of slavery in Cuba was initiated, beginning a process of slave emancipation that was to last nearly twenty years. This concurrence of events raises the question, What was the relationship between slavery and the development of sugar production, and why did emancipation in Cuba take place when and as it did?


Reactions ◽  
2011 ◽  
Author(s):  
Peter Atkins

In this final reaction I am going to show you in the broadest of outlines how chemists build the equivalent of a cathedral. That is, how they synthesize a complicated molecule from scratch. The aim of a synthesis is to take a reasonably readily available laboratory chemical and process it—add bits on, take things off, close rings of atoms, open rings, build flying buttresses, and so on—until the target compound has been made. You could take the view that you should really start from absolute scratch, from the elements themselves, typically hydrogen, carbon, nitrogen, and oxygen, and build the molecule from those. However, that would be a waste of time and not crucial to the demonstration of the synthetic route because it is possible to argue that there are already plenty of methods for synthesizing the simple starting materials from scratch, and the real challenge is to build the intricate molecule. That is rather like accepting that a contractor can supply windows, bricks, and beams when constructing a real house and that it isn’t necessary to go all the way back to the sand, clay, and iron ore from which they are made to demonstrate that the house can be built literally from the ground up. Of course, the starting materials in a modern chemical synthesis might seem a bit recondite, but be assured that they are reasonably acceptable and purchasable from suppliers of laboratory reagents or easily made from what they do supply. Now for the particular cathedral on which I intend to focus. That scourge of humanity, malaria (‘bad air’), was introduced into the New World in the fifteenth century and soon wrought the havoc that had for long, and still, afflicts millions. The natives there found that an extract of the bark of the quina-quina tree, in due course to be classified as Cinchona Officinalis, was an effective cure, in particular having saved the life of the Countess of Cinchona. In due course the active component, quinine, was identified and extracted.


2020 ◽  
Vol 166 ◽  
pp. 02005
Author(s):  
Serhii Joukov ◽  
Serhii Lutsenko ◽  
Yulian Hryhoriev ◽  
Maxim Martyniuk ◽  
Volodymyr Peregudov

The economic efficiency of the enterprise and the length of its operation, the full utilization of mineral reserves and the total cost of operation depend on the selected depth and boundaries of opencast mining. In such conditions of the deposits’ development it is necessary to evaluate the capabilities of the raw material base for the further development of the mining enterprise. The basis for determining of the border overburden ratio is on the condition that the price of manufactured marketable output of the designed enterprise should not exceed the price of the same marketable output in the world market. The realization of this condition is achieved analytically. This takes into account the impact of the rate of return on the final depth of the designed open pit. A new method of determining of the border overburden ratio is developed, which ensures the competitiveness of iron ore concentrate in the world market. The value of the border overburden ratio is developed for the Pershotravnevij open pit of the Northern mining and processing plant, depending on the situation of the iron-containing products’ prices, which ensures the competitiveness of marketable iron-ore output in the domestic and world markets.


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