Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 6

Liczba wyników na stronie
first rewind previous Strona / 1 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  strategic raw materials
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 1 next fast forward last
EN
This article presents the waste electrical and electronic equipment and batteries and accumulators as a potential source of critical, strategic and deficit raw materials. The dominant types of waste obtained after the disassembly of used electrical and electronic equipment are plastics: polypropylene (PP), acrylonitrile-butadiene-styrene (ABS), polystyrene (PS) and teflon and metals. These metals include: magnesium, cobalt, antimony and tantalum (critical raw materials), aluminum, nickel, iron and zinc (strategic raw materials) as well as copper and silver (deficit resources), as well as lead, tin, gold and cadmium. Batteries and accumulators are a source, among others metals such as: nickel and zinc (strategic raw materials), manganese and lithium (deficit resources), aluminum (strategic raw material), and cadmium, lead. The article presents the results of analysis of the material composition of the waste electrical and electronic equipment conducted at the Institute of Mechanised Construction and Rock Mining. It also presents the level of imports and exports of waste and scrap-metal that are the subject of this article. In addition, the article presents a source of information about waste and recycled materials.
EN
Comprehensive and harmonious economic development of each country depends on the availability of raw materials, in particular mineral deposits, necessary for the functioning of the various industries that produce the substances and equipment required to meet the needs of the population, and for the efficient operation of agriculture and transport. The identification of raw materials, which are important for the country, is the basis of mineral policy and strategy. Diverse conditions of production of mineral raw materials result in their division into groups of different importance for the national economy. In Poland, three independent proposals for determining economically important mineral raw materials were developed. Despite their intuitive, similar approaches, various raw materials were identified as pivotal, strategic and critical. We would like to clarify their definitions: Pivotal raw materials – essential for the proper functioning of the economy and satisfying the needs of the society, those whose supply must be assured; Strategic raw materials - not sufficiently (at least 90%) supplied from domestic sources, or whose opportunities for permanent supply are limited or threatened (including the raw materials necessary for the development of innovative technologies); Critical raw materials - those whose chance of gaining (from both primary and secondary sources) is of high risk and their substitutability is low (in particular raw materials on the EU Critical List). There are 27 pivotal raw materials, especially important for the Polish economy, which are distinguished by the importance of raw materials and the importance of the substitution of raw materials. The list of strategic raw materials counts 36 items and includes a number of pivotal raw materials, important for the economy but being deficient in Poland. Eighteen mineral raw materials were considered critical. Depending on the changing, widely understood market conditions, such lists should be reviewed and updated at least every 5 years.
PL
Artykuł omawia problemy związane z gospodarką surowcami krytycznymi, strategicznymi i deficytowymi w Polsce. Gospodarka tymi surowcami obejmuje: zapotrzebowanie na ww. surowce nieenergetyczne, ich import do Polski wraz z głównymi kierunkami importu oraz eksport niektórych z tych surowców poza granice naszego kraju.
EN
This paper presents issues concerning management of critical, strategic and deficit raw materials in Poland. Management of these materials includes: demand for the abovementioned non-energy raw materials, import and the origin of import of non-energy raw materials to Poland, export of some of these materials abroad.
4
Content available Bursztyn jako surowiec strategiczny
PL
Znaczenie i rola surowca mineralnego w gospodarce kraju czy świata jest dostrzegalna w używanych określeniach: surowiec deficytowy, krytyczny lub strategiczny. ustalenie ważności surowca w procesach gospodarczych, wiedza o źródłach jego pozyskiwania, barierach dostępu, kształtowaniu ceny na rynkach krajowym i międzynarodowym pozwalają na opracowanie strategii działania, w której należy uwzględnić cel działań, horyzont czasowy, rodzaj niezbędnych do zastosowania instrumentów i zakres współpracy międzynarodowej. O znaczeniu surowca dla kraju decyduje nie tylko wolumen obrotów i wielkość produkcji uzyskiwanej dzięki jego zastosowaniu, lecz także względy historyczne, kulturowe i społeczne. Tak jest w przypadku bursztynu. Autor przedstawia argumenty przemawiające za uznaniem bursztynu w Polsce za surowiec o znaczeniu strategicznym i wskazuje na konieczność wprowadzenia efektywnych instrumentów, które zapewnią jego dalsze pozyskiwanie i wykorzystanie.
EN
The importance and the role of minerals in the economy of a country or the world is manifested by the use of the following terms: scarce mineral, critical mineral, and strategic mineral. Validity of the raw material in the economic processes and the knowledge about the sources of its acquisition, access barriers, and the shaping of prices on the domestic and international market allow developing a strategy for action. The strategy must take into account the objective of the action, time horizon, kind of the instruments needed to apply, and scope of international cooperation. The importance of the raw material for the country is not only the volume of turnover and volume of production obtained thanks to its application. This also means its importance for historical, cultural and social reasons, which is the case with amber. The author presents arguments in favour of both considering amber in Poland as a raw material of strategic importance and the necessity for introducing effective instruments to ensure its further extraction and use.
EN
In 2008 Committee on Critical Mineral Impacts of the U.S. Economy, presented a definition of strategic raw materials, which was also adopted by the countries of the European Union. A group of strategic raw materials includes 12 minerals/materials with a very critical economic importance and specific conditions related to the criticality and risk of shortage of supply. The risk of the shortage of supply is mainly due to a limited number of sources of origin. These are: rhenium, tellurium, iron, aluminum, bauxite, magnesite, molybdenum, manganese, vanadium, zinc, nickel and chromium. The attention is put on the raw materials used in large quantities in the key industries (iron, aluminum) and the strategic raw materials which include among others: traditional ingredients of alloy steel (vanadium, chromium, manganese, molybdenum). The above list of 12 strategic raw materials is a proposal, which can be modified as a result of the reduction of strategic raw materials resources in European countries. The strategic raw materials are found in temperate locations in the world and have few substitutes. The analysis of the literature on identified technologies has showed that the most recognizable way to enrich the specific raw materials is by processing their ores, which are the carriers of many metals. The ore is processed to improve their chemical composition, to standardize their chemical and physico-chemical properties, to ensure the appropriate sizes of the ore pieces. Since the mined ores are mostly not suitable for direct processing, an important process is multi-enrichment. The enrichment of ores can be divided into: mechanical and chemical enrichment. The process of ore processing was applied to the following materials: rhenium, iron, molybdenum, manganese, vanadium, zinc, nickel and chromium. A comprehensive assessment of mineral potential of the European Union countries and the so-called identification of strategic raw materials a priority of the EU raw materials policy.
EN
The paper presents the characteristics of types, occurrence and distribution of the ocean polymetallic deposits: polymetallic nodules, cobalt-rich ferromanganese crusts, seafloor massive sulphides and metalliferous clays. Possibility of extraction of critical raw materials (for the EU) and strategic raw materials (according the OECD report) from the ocean polymetallic deposits is indicated. Polymetallic nodules are the most recognized type of ocean polymetallic deposits, abundant mostly in abyssal basins at the depths of3500-6000 m b.s.l. The most important practical metals from the polymetallic nodules are: Fe, Mn (280 000-320 000 ppm), Ni (11 000-14 000 ppm), Co (2100 ppm), Cu (9500-13 000 ppm), Mo and rare earth elements (REE). Cobalt-rich ferromanganese crusts, which are laminatedferromanganese clusters occurring at a depth interval between 400-4000 m b.s.l., can have a prospective significance for the extraction of critical raw materials. They are found on the seamounts where seafloor currents have swept the rocky bottom clear of sediment. They contain large amounts of metals: Mn, Co, Ti, Pt, Te, Mo and Zr. The key factor determining the profitability of the crust mining will be cobalt extraction. However, profitability may increase if nickel, tellurium or REE would be recovered at the same time. The analyses show that the seafloor massive sulphides would be of great importance, as they are the potential source of gold, platinum, silver, copper, zinc and lead. Extraction ofthese deposits is associated with the smallest area ofexploitation and depth ofoccurrence (between 1500-3700 m b.s.l.) which can significantly facilitate commencing of mining operations. Their commercial extraction could begin in the next few years, provided a high concentration of gold and metals in the location near the coast, and a depth below 2000 m b.s.l. Metalliferous clays, which are the deposits enriched in manganese oxides or hydroxides and sulphides or iron, could become an important prospective source of rare earth elements. This is confirmed by a study in two regions: eastern South and central North Pacific. Prospective possibilities of mining the ocean polymetallic deposits increased due to a high concentration ofMn, Ni, Cu, Co, Pt and REE (La, Ce, Nd, Yb, Eu). REE recovery particularly increases the economic value of these deposits. Mining of the ocean polymetallic deposits would meet many technological difficulties and should be preceded by detailed environmental studies.
first rewind previous Strona / 1 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.