scholarly journals European raw materials policy — past and current development

1977 ◽  
Vol 12 (11-12) ◽  
pp. 311-315
Author(s):  
Hans R. Krämer
Keyword(s):  
Raw Materials ◽  
Current Development ◽  
Raw Materials Policy

Aims and Means of a Raw Materials Policy

1980 ◽  
pp. 112-139
Author(s):  
TOMAS BERTELMAN ◽  
ERNST HOLLANDER ◽  
CARL-AXEL OLSSON ◽  
MARIANNE PARMSUND ◽  
STAFFAN SOHLMAN ◽  
...  
Keyword(s):  
Raw Materials ◽  
Raw Materials Policy

scholarly journals THE INFLUENCE OF SOUS-VIDE TREATMENT ON THE FORM OF MOISTURE IN LARGE-VEGETABLE MEAT SYSTEMS

2013 ◽  
Vol 17 (2) ◽  
pp. 47-52
Author(s):  
Natalia Sergeevna Rodionova ◽  
Evgeniy Sergeevich Popov ◽  
Adriana Birca ◽  
Liviu Gaceо
Keyword(s):  
Low Temperature ◽  
Polymer Film ◽  
Mass Fraction ◽  
Raw Materials ◽  
Total Weight ◽  
Current Development ◽  
Catering Industry ◽  
Free Moisture ◽  
Sous Vide ◽  
Hydrothermal Cooking

Abstract The current development of the catering industry is due to the improvement of the processes of heat cooking of raw materials. One such area is the use of low-temperature hydrothermal cooking food, pre-vacuum-packed in heat-resistant polymer film. In cooking, spread a combination of rice, chicken and vegetable ingredients: onions and carrots, which allows you to get a dish with high consumer properties. During the study, it was determined the amount of moisture needed to reach the desired consistency of the mixture components to increase the yield of finished products, while providing maximum storage periods. The results show that the addition of water in amounts exceeding 3.0% of the total weight of food leads to an increase in the mass fraction of free moisture

Recent developments in Raw Materials Policy in the European Union: perspective of EuroGeoSurveys as a data supplier

2018 ◽  
Vol 472 (472) ◽  
pp. 11-20 ◽  
Author(s):  
Jelena Vidovic ◽  
Slavko Solar
Keyword(s):  
European Union ◽  
Knowledge Base ◽  
European Commission ◽  
Raw Materials ◽  
The European Union ◽  
Mineral Raw Materials ◽  
Horizon 2020 ◽  
Secondary Sources ◽  
Recent Developments ◽  
Raw Materials Policy

Mineral Raw Materials are of strategic importance for Europe’s economic growth and societal development. The European Commission addressed this challenge through the Raw Materials Initiative (RMI), stakeholders’ platform, the European Innovation Platform on Raw Materials (EIP-RM), and Horizon 2020 funding. The aim is to ensure security and sustainability of mineral raw materials supply from EU domestic and other primary and secondary sources and management of competing uses of the European surface and subsurface. The sustainable supply of raw materials from European sources requires an improved knowledge base of raw materials within the EU, namely the European Union Raw Materials Knowledge Base (EURMKB), where EuroGeoSurveys, the Geological Surveys of Europe, is one of the key data providers. Current European Commission policies have the same objectives that will be fully implemented in near future. The Mobility Package and its implementation activities (such as European Battery Alliance) and tools (including Horizon Europe) will strengthen the raw materials position in an overall EU policy setting.

scholarly journals Raw materials policy as security policy

Vojno delo ◽  
2015 ◽  
Vol 67 (4) ◽  
pp. 24-43
Author(s):  
Henrique Schneider ◽  
Hans-Ulrich Bigler
Keyword(s):  
Security Policy ◽  
Raw Materials ◽  
Raw Materials Policy

scholarly journals Microscopic investigations of the flotation tailings from Baia Mare Central Pond for highlighting the sulphides

2019 ◽  
Vol 1 (1) ◽  
pp. 32-33
Keyword(s):  
Raw Materials ◽  
Base Metals ◽  
The European Union ◽  
Waste Dumps ◽  
Ore Processing ◽  
Mineral Associations ◽  
Baia Mare ◽  
Metallurgical Slags ◽  
Raw Materials Policy ◽  
Microscopic Investigations

The strategy of the European Union regarding Raw Materials policy led to strategy called "Raw materials initiative" [1]. Thus, the use of waste dumps is encouraged in the sense of recovering the base metals through efficient eco-friendly technologies, according to the principles “fostering sustainable supply of raw materials from European sources, and boosting resource efficiency and promoting recycling” [2]. Microscopic investigations provide information on the minerals in which the elements of interest are present. In the case of the tailings from the Baia Mare Central Pond are followed the sulphides with base metal content Cu, Pb, Zn. These can be distributed individually or in mineral associations, along with the gangue minerals. By microscopic methods (scanning electron microscopy- energy dispersive X-ray spectroscopy and optical microscopy) sulphides and other minerals from the initial material were observed, as well as metallurgical slags from ore processing.

scholarly journals Treatment and utilization of artificial aggregate in the production of cement composites

2021 ◽  
Vol 900 (1) ◽  
pp. 012032
Author(s):  
R Papesch ◽  
K Macalova ◽  
J Charvat ◽  
T Dvorsky ◽  
V Vaclavik
Keyword(s):  
Raw Materials ◽  
Steel Slag ◽  
Steel Production ◽  
Mineralogical Composition ◽  
Positive Influence ◽  
Partial Replacement ◽  
Steel Ladle ◽  
Cement Composites ◽  
Ladle Slag ◽  
Raw Materials Policy

Abstract The aim of the work is to find a suitable way of treatment of steel ladle slag for subsequent use as a partial replacement of the binder component in cement composites. The goal is based on the raw materials policy of the Czech Republic. Within this work is solved the issue of possible use of steel slag as the largest by-product of steel production. The work is focused on a specific ladle slag from ladle furnaces, by which are equipped the modern steel plants. Ladle slag is similar in chemical composition to Portland cement. However, its mineralogical composition should be taken into account in relation to its expansion reactions and lower hydraulic activity. One of the goals is the research of effect of particle size in cement-slag mixtures. The slag was ground for research on two different specific surfaces - coarsely in a vibrating mill and finely in a ball mill. The research within the experimental part of the work verified the positive influence of ladle slag on the properties of fresh and hardened mortar mixtures. Tensile bending strengths and compressive strengths are for some mixtures with ladle slag even higher than the strengths of the reference mixtures.

Microstructural characterization of laser-melted/roller-quenched dicalcium silicate

1988 ◽  
Vol 46 ◽  
pp. 582-583
Author(s):  
C. J. Chan ◽  
K. R. Venkatachari ◽  
W. M. Kriven ◽  
J. F. Young
Keyword(s):  
Particle Size ◽  
Raw Materials ◽  
Shape Change ◽  
Microstructural Characterization ◽  
Particle Size Effect ◽  
Dicalcium Silicate ◽  
Laser Melting ◽  
Uniform Size ◽  
Cell Shape Change ◽  
Wide Range

Dicalcium silicate (Ca2SiO4) is a major component of Portland cement. It has also been investigated as a potential transformation toughener alternative to zirconia. It has five polymorphs: α, α'H, α'L, β and γ. Of interest is the β-to-γ transformation on cooling at about 490°C. This transformation, accompanied by a 12% volume increase and a 4.6° unit cell shape change, is analogous to the tetragonal-to-monoclinic transformation in zirconia. Due to the processing methods used, previous studies into the particle size effect were limited by a wide range of particle size distribution. In an attempt to obtain a more uniform size, a fast quench rate involving a laser-melting/roller-quenching technique was investigated.The laser-melting/roller-quenching experiment used precompacted bars of stoichiometric γ-Ca2SiO4 powder, which were synthesized from AR grade CaCO3 and SiO2xH2O. The raw materials were mixed by conventional ceramic processing techniques, and sintered at 1450°C. The dusted γ-Ca2SiO4 powder was uniaxially pressed into 0.4 cm x 0.4 cm x 4 cm bars under 34 MPa and cold isostatically pressed under 172 MPa. The γ-Ca2SiO4 bars were melted by a 10 KW-CO2 laser.

Crystallization of barium hexaferrite

1992 ◽  
Vol 50 (1) ◽  
pp. 362-363
Author(s):  
Chung-kook Lee ◽  
Yolande Berta ◽  
Robert F. Speyer
Keyword(s):  
Size Distribution ◽  
Raw Materials ◽  
Barium Hexaferrite ◽  
Recording Media ◽  
Magnetic Recording Media ◽  
Promising Candidate ◽  
Crystallization Method ◽  
Temperature Heat ◽  
High Density Magnetic Recording ◽  
Temperature Heat Treatment

Barium hexaferrite (BaFe12O19) is a promising candidate for high density magnetic recording media due to its superior magnetic properties. For particulate recording media, nano-sized single crystalline powders with a narrow size distribution are a primary application requirement. The glass-crystallization method is preferred because of the controllability of crystallization kinetics, hence, particle size and size distribution. A disadvantage of this method is the need to melt raw materials at high temperatures with non-reactive crucibles, e.g. platinum. However, in this work, we have shown that crystal growth of barium hexaferrite occurred during low temperature heat treatment of raw batches.

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