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The impact of the economic and financial crisis on the foreign trade in metallurgical products
C. C？runtu,G. Dobrot？
Metalurgija , 2013,
Abstract: The manifestation of the global financial crisis severely affected the foreign trade worldwide. The purpose of this paper is to highlight the impact of the financial and economic crisis on foreign trade at the level of countries and groups ofcountries that have global leadership in the area, with an emphasis on the metallurgical products. The analysis results show that this branch was affected to a higher percentage compared to the amount of the value of the trade in goods.
A comparative analysis of trade in metallurgical products in 2009 - 2013. Case study: Romania vs. Croatia
Babucea, A. G.,B？l？cescu, A.,Paliu-Popa, L.,R？bon？u, C. I.
- , 2015,
Abstract: Sa？etak Metallurgy is a domain of the secondary sector, which represented for years in Romania, as in other former Communist countries, a very important activity for gross domestic product and employment. Today, many enterprises which were representative in Romania for the metallurgical industry long ago are targets of the sellers of scrap metal, the scrap metal trade representing a segment that has gained momentum in recent years. Croatia, as a member country of the EU has a special contribution in the trade with metallurgical products and we have proposed in this paper to identify which is the level of international trade with metallurgical products of Romania and Croatia, which included a comparison between these countries. For this aim we’ll use the data provided by Eurostat and World Trade Organization (WTO)
The impact of the economic and financial crisis on the foreign trade in metallurgical products
C？runtu, C.,Dobrot？, G.
- , 2013,
Abstract: Sa？etak The manifestation of the global financial crisis severely affected the foreign trade worldwide. The purpose of this paper is to highlight the impact of the financial and economic crisis on foreign trade at the level of countries and groups ofcountries that have global leadership in the area, with an emphasis on the metallurgical products. The analysis results show that this branch was affected to a higher percentage compared to the amount of the value of the trade in goods
Managing the flow components in supply chains
Kramarz, M.,Kramarz, W.
- , 2019,
Abstract: Sa？etak Identification and evaluation of the frequency and the power of influence as well as effects of disruptions, are essential problems noticed both by practitioners and theoreticians of the management of flows in supply chains. They are a widely discussed problem of the resilience of the supply chain. This paper considers the strategy of strengthening the resilience by production postponement and constructing network relations with subcontractors and participants of distribution channels. The study took into account two locations of the material decoupling point in supply chains of metallurgic products. Due to the aim of the research, attention was focused on the material decoupling point of the supply chain: assembly to order
Innovation in metallurgical waste management
Kania, H.,Lis, T.,Nowacki, K.,？elichowska, M.
- , 2015,
Abstract: Sa？etak In the paper was presented innovative solutions of sludge and dust management generated by metallurgical enterprises. These solutions are as follows: usage of steelmaking dust in production of decorative glassware and deoiling of metallurgical sludge useful in producing of iron-bearing briquette for electric arc furnaces (EAF). The influence of the aforementioned technologies on the environment was also discussed
An analysis of the causes of complaintsabout steel sheets in metallurgical product quality management systems
Gajdzik, B.,Sitko, J.
- , 2014,
Abstract: Sa？etak The publication presents the causes of complaints about metallurgical products, illustrated with an example of steel sheets, with a particular focus on the reasons having their source in the human factor. The publication has been based on direct research and analysis of complaints made available by a metallurgical plant. The obtained results have been enriched with theoretical considerations on quality management systems for metallurgical products
A possibility of preparation of the Magnetite Concentrate from the Mining and Metallurgical Waste-Products containing the FeO-component
Félix Sekula,Franti？ek Molnár
Acta Montanistica Slovaca , 2005,
Abstract: The article that it is possible to transform FeO to Fe3 O4 by vapour. The aim of this conversion is to build-up the lodestone ( magnetite ) concentrate such as the mining and metallurgical waste-products containing FeO-component. The thermodynamical calculation of the equilibrium composition in the temperature range of 100°C to 1000°C shows that at 200°C the highest of thermodynamic effeciency of the conversion, i.e. the values: 89,7 % of Fe3O4 and 7,1 % Fe2O3 was achieved. The last stage of preparation of the lodestone concentrate is the process of magnetic separation of Fe3O4 by the water operation in the low-intensity magnetic field.
Ceramic Tiles Obtained from Clay Mixtures with the Addition of Diverse Metallurgical Wastes  [PDF]
Nancy Quaranta, Marta Caligaris, Miguel Unsen, Hugo López, Gisela Pelozo, Juan Pasquini, Carlos Vieira
Journal of Materials Science and Chemical Engineering (MSCE) , 2014, DOI: 10.4236/msce.2014.22001
Abstract:

The generation of industrial residues is unavoidable, but these materials may be recovered, redirecting them toward new production processes, rather than allocating them to the stream of discards. The aim of this paper is to study the feasibility of utilization of metallurgical wastes as raw material for tiles in the ceramic industry, using the residual materials as aggregates in clay based ceramics. The residues used are: sludge and slag from several metallurgical processes, Ruthner dust and foundry sand. Samples were obtained from mixtures of clay and each waste in various percentages, which were then heat treated. The pieces obtained were characterized using several techniques, with the aim of determining the properties of these materials in relation to the commercial requirements. A high feasibility of reuse of most of these wastes as raw material in the production of ceramic bodies has been established.

Comparative Beneficiation Study of Gyel Columbite Ore Using Double Stage (Magnetic-to-Magnetic and Magnetic-to-Gravity) Separation Techniques  [PDF]
Oladunni Oyelola Alabi, Shehu Aliyu Yaro, George Thomas Dungka, Ferdinand Asuke, Binta Hassan
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2016, DOI: 10.4236/jmmce.2016.42017
Abstract: The comparative beneficiation study of Gyel columbite ore using double stage (magnetic-to-magnetic and magnetic-to-gravity), located in the vicinity of Gyel village in Jos South Local Government Area of Plateau State to metallurgical grade was carried out. The ore sample was sourced from 20 different pits each 1.5 × 1.5 × 2 meters deep, 50 meter apart covering a land of 50 hectares. The samples from the 20 pits were crushed, pulverized and homogenized. 200 kg of the homogenized ore sample was used for the experiment and laboratory works. Chemical characterization of the ore sample was carried out using energy dispersive X-ray fluorescence spectrometer (ED-XFR). Single and double stage concentration tests using magnetic and gravity methods were carried out respectively. The results of the chemical analysis of ore sample reveal that, Pit 1 contains 12.26% Nb2O5, 21.6% Fe2O3, 36.1% SiO2; Pit 20 contains 4.78% Nb2O5, 19.34% Fe2O3, 23.96% SiO2 and the homogenized sample contains 6.71% Nb2O5, 23.1% Fe2O3 and 27.0% SiO2 averagely. The liberation study reveals that the niobium of ore can be liberated over a range of sieve size fractions of -355 + 63 μm for the coarse and -63 + 45 μm for the fine particle size fractions. On the basis of this, sieve size fractions of -1400 + 355 μm (as coarse size), -355 + 90 μm (as medium size) and -90 + 45 μm (as fine size) were used for the concentration tests. The concentration test using the double stage processes revealed that the air-floatation followed by rapid magnetic method produced a concentrate with the highest percent assay of 54.48% Nb2O5 with a recovery of 96.53% followed by the rapid-to-rapid magnetic method which produced a concentrate assaying 52.12% Nb2O5 with a recovery of 86.96%. These results meet and surpass the 50% Nb2O5 stipulated as the acceptable metallurgical grade concentrate for niobium metal production in the literature.
Benefits and barriers of participation in production networks in a metallurgical cluster - research results
Lenort, R.,Samolejova, A.,Saniuk, A.,Saniuk, S.
- , 2015,
Abstract: Sa？etak In this paper, the research results of surveys which were conducted in a Polish metallurgical cluster and among enterprises which are potential members of such production networks are presented. These results show that there is a high level of free capacity that can be used in the formation of production networks. The idea of the creation of long term clusters of industry or service enterprises give new possibilities to increase performance and productivity and seek higher levels of innovation. Through exploitation of the synergy effect, such concepts allow better economic results and a competitive advantage over other market players to be obtained. The key concerns about the functioning of enterprises in production networks within a cluster are following: a lack of confidence in potential partners, loss of data and concerns about the division of costs and revenues
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