MULTICOMPONENT DEPOSITS WITH BY-PRODUCT AS THE MAIN SOURCE OF FELDSPAR RAW MATERIALS FOR MODERN TECHNOLOGIES

2021 ◽  
Author(s):  
Georgii Rudko ◽  
Mariia Kyrilo ◽  
Maksym Ozerko
Keyword(s):  
Glass Industry ◽  
Raw Materials ◽  
Mining Operation ◽  
Crystalline Rocks ◽  
Building Construction ◽  
Weathering Crust ◽  
Solar Panels ◽  
Mineral Associations ◽  
Feldspar Concentrate ◽  
Modern Technologies

"Feldspar is raw materials with a growing volume of production every year, as well as a price for it. Feldspar consumption has been gradually increasing in ceramics, glass industry for solar panels, housing, and building construction. Feldspar raw materials include intrusive, effusive rocks, weathering crust of crystalline rocks, sedimentary altered and altered rocks, as well as partially medium and basic aluminosilicate rocks. It was defined an industrial application for each species of feldspar. Potassium feldspars (orthoclase, microcline, sanidine) are used in electroceramic, electrode, abrasive, and ceramics industries. For these productions, the potash module is fixed in a ratio of 2: 1. For some industries, in particular the manufacture of high-voltage ceramics, the necessary feldspars are as close as possible to pure potassium (with a modulus of at least 4: 1, which corresponds to 80% of the orthoclase component). Potassium-sodium raw materials, from a potassium modulus of at least 0.9, are used for building construction. Sodium minerals with non-standardized potassium modulus are used for the glass industry, the production of enamels, and products such as vitreous porcelain. Calcium feldspars, represented by plagioclase of higher numbers, have limited practical application and their presence in feldspar concentrates is undesirable. According to mineral associations, all types of feldspar raw materials can be divided into five types: 1) feldspar (syenites, trachitis); 2) quartz-feldspar (pegmatites, granites, sands, etc.); 3) nepheline-feldspar (nepheline syenites, alkaline pegmatites); 4) quartz-sericite-feldspar (shales, secondary quartzites); 5) quartz-kaolinite-feldspar (sands, alkaline kaolins, secondary quartzites). It is shown on the example of Ukrainian deposits of feldspar minerals that complex deposits with by-products become the main source for production. Especially if these are new mining operation facilities. The authors have identified three main types of such complex multicomponent deposits: 1) deposits of intrusive rocks where weathering crust of crystalline rocks are mined as a byproduct; 2) complex deposits, where feldspar rocks are enclosing or overburden and can also be considered as byproducts; 3) deposits where feldspar concentrate can be produced as a product of ore components processing."

Investigation of Thermal Insulation Materials Based on Easy Renewable Row Materials from Agriculture

2011 ◽  
Vol 335-336 ◽  
pp. 1412-1417 ◽  
Author(s):  
Jiri Zach ◽  
Jitka Peterková ◽  
Vít Petranek ◽  
Jana Kosíková ◽  
Azra Korjenic
Keyword(s):  
Thermal Insulation ◽  
Building Materials ◽  
Raw Materials ◽  
Building Construction ◽  
Materials Development ◽  
Insulation Materials ◽  
Thermal Insulating ◽  
Plastic Materials ◽  
Energy Consuming ◽  
Rock Wool

Production of building materials is mostly energy consuming. In the sphere of insulation materials we mostly see rock wool based materials or foam-plastic materials whose production process is demanding from material aspect and raw materials aspect as well. At present the demand for thermal insulation materials has been growing globally. The thermal insulation materials form integral part of all constructions in civil engineering. The materials mainly fulfill the thermal insulating functions and also the sound-insulating one. The majority of thermal insulation materials are able to fulfill both of the functions simultaneously. The paper describes questions of thermal insulation materials development with good sound properties based on natural fibres that represent a quickly renewable source of raw materials coming from agriculture. The main advantage of the materials are mainly the local availability and simple renewability of the raw materials. In addition an easy recycling of the materials after their service life end in the building construction and last but not least also the connection of human friendly properties of organic materials with advanced product manufacture qualities of modern insulation materials.

scholarly journals High Frequency Electromagnetic Shielding by Biochar-Based Composites

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2383
Author(s):  
Daniele Torsello ◽  
Mattia Bartoli ◽  
Mauro Giorcelli ◽  
Massimo Rovere ◽  
Rossella Arrigo ◽  
...  
Keyword(s):  
Complex Permittivity ◽  
Raw Materials ◽  
Cost Effective ◽  
Electromagnetic Shielding ◽  
Building Construction ◽  
Physical Parameters ◽  
Preliminary Evaluation ◽  
Evaluation Tool ◽  
Structural Composites ◽  
Microwave Shielding

We report on the microwave shielding efficiency of non-structural composites, where inclusions of biochar—a cost effective and eco-friendly material—are dispersed in matrices of interest for building construction. We directly measured the complex permittivity of raw materials and composites, in the frequency range 100 MHz–8 GHz. A proper permittivity mixing formula allows obtaining other combinations, to enlarge the case studies. From complex permittivity, finally, we calculated the shielding efficiency, showing that tailoring the content of biochar allows obtaining a desired value of electromagnetic shielding, potentially useful for different applications. This approach represents a quick preliminary evaluation tool to design composites with desired shielding properties starting from physical parameters.

Rational use of fish raw materials based on its technological potential

Fisheries ◽  
2021 ◽  
Vol 2021 (4) ◽  
pp. 106-110
Author(s):  
Eduard kim ◽  
Larisa Guseva ◽  
Nadezhda Kornienko
Keyword(s):  
Russian Federation ◽  
Raw Materials ◽  
Integrated Approach ◽  
Promising Direction ◽  
Rational Use ◽  
Biological Resources ◽  
Technological Potential ◽  
The Russian Federation ◽  
The Government ◽  
Modern Technologies

The Strategy for the development of the fisheries complex of the Russian Federation for the period up to 2030, approved by the decree of the Government of the Russian Federation (dated November 26, 2019 N 2798-r) provides for a set of measures for the rational use of biological resources. The most promising direction of this task is the creation of modern technologies for deep pro-cessing of fish raw materials, providing for an integrated approach and taking into account its technological potential.

Indicators of Sustainable Construction in Eco Urban

2017 ◽  
Vol 42 (2) ◽  
pp. 43-48
Author(s):  
Somayeh Roshanfekr ◽  
N.M. Tawil ◽  
N.A. Goh
Keyword(s):  
Raw Materials ◽  
Research Work ◽  
Green Buildings ◽  
Building Construction ◽  
Sustainable Construction ◽  
Building Industry ◽  
Construction Process ◽  
Residential Areas ◽  
Sustainable Building ◽  
Critical Elements

This research work is an introduction to sustainable construction. A few significant indicators and many related subsets, which are crucial to green sustainable construction and also to green buildings, are mentioned in this study. An ecocity is one that utilizes all the critical elements of the environment. Urban sustainable construction is a vital criterion in this context. Sustainable construction paves the way for the building industry to progress towards achieving realistic standards of performance, particularly in view of economic, environmental, and social concerns. Sustainability is a popular expression that has given rise to various activities throughout the world once people began to grasp the implications of sustainable construction. Sustainability, which is an important factor in reducing the negative environmental effects of construction, includes improving the control and efficiency in the use of raw materials, land and power consumption. The lifetime of a building is based on some factors that are prognostic regarding the manufacture, remodelling, support, utilization, and administration of the building, and finally, the sources of utilization and waste formation, annihilation and devastation. All of these give rise to a range of ecological issues in the life of a building. Generally, a sustainable building and construction involves a reduction in the utilization of energy and also wastage from the beginning of the construction process and throughout the lifecycle of the building. Moreover, the environment is faced with mounting devastation due to the exploitation of natural resources for building construction and the replacement of agronomic regions by residential areas.

MODERN TECHNOLOGIES OF RECEIVING DIETARY FIBERS FROM SECONDARY PRODUCTS OF PROCESSING OF VEGETABLE RAW MATERIALS

2018 ◽  
Author(s):  
М.Ю. ТАМОВА ◽  
Е.В. БАРАШКИНА ◽  
Р.А. ЖУРАВЛЕВ ◽  
Н.Р. ТРЕТЬЯКОВА ◽  
Е.С. ФРАНЧЕНКО
Keyword(s):  
Electromagnetic Field ◽  
New Technologies ◽  
Raw Materials ◽  
Modern Technology ◽  
Dietary Fibers ◽  
Secondary Products ◽  
Adsorption Activity ◽  
Vegetable Raw Materials ◽  
Ultrahigh Frequencies ◽  
Modern Technologies

Рассмотрены перспективы получения пищевых волокон (ПВ) из вторичных продуктов АПК. Приведены результаты анализа опубликованных исследований о перспективах получения ПВ, проявляющих детоксикационную и адсорбционную активность, с целью обогащения ими продуктов питания. Рассмотрены современные технологические решения получения ПВ из продуктов переработки сахарной свеклы и яблок. Признано целесообразным дальнейшее проведение научно-экспериментальных разработок новых технологий получения ПВ из растительного сырья с применением электромагнитного поля крайне низких и сверхвысоких частот. The prospects of obtaining dietary fibers (DF) from secondary products of agriculture are considered. Results of the analysis of sources on the prospects of receiving the DF showing detoxification and adsorption activity for the purpose of enrichment of food by them are given. Modern technology solutions of receiving DF from products of processing of sugar beet and apples are given. Further carrying out scientific and experimental developments of new technologies of receiving DF from vegetable raw materials with application of the electromagnetic field of extremely low and ultrahigh frequencies is perspective.

scholarly journals The Resource Base of Silica Glass Sand versus Glass Industry Development: The Case of Poland

Resources ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 134
Author(s):  
Anna Burkowicz ◽  
Krzysztof Galos ◽  
Katarzyna Guzik
Keyword(s):  
Glass Industry ◽  
Raw Materials ◽  
Flat Glass ◽  
Silica Sand ◽  
Resource Base ◽  
Industry Development ◽  
Continue Production ◽  
Glass Silica ◽  
Glass Sand ◽  
Increasing Demand

The production of glass in Poland, especially of container and flat glass, has constantly risen for at least 30 years. New investments in this sector, which have recently been completed or are currently in progress, create optimistic prospects for further development of this industry, whose total annual production capacities in the next few years is expected to exceed 4 million tons. This will result in increasing demand for basic glass-making raw materials, especially high-quality silica sand (glass sand), which can be satisfied almost entirely from domestic sources. Poland as a country with a considerable resource base of these mineral raw materials, has noted a constantly growing production level that currently reaches approximately 2.8 million tons per year. This paper aims to characterize and interpret the development trends in the Polish glass industry in an international context, as well as the resulting increase in demand for glass sand. In this context, an attempt was made to answer questions concerning the sufficiency of the Polish domestic resource base for the production of glass sand. For this study, the leading recent international and Polish analyses, related to glass industry development, the resource base of glass silica sand, and the management of these types of sand, were taken into account, and were complemented by official statistical data and surveying of domestic glass producers. The performed analysis showed that when taking into account the available glass sand resources in developed deposits in Poland, it is possible to continue production at the existing or a slightly increasing level for another 20–25 years. Based on a more comprehensive perspective, however, it would be a good approach to continue providing access to those parts of currently extracted deposits of silica sand and sandstone that are now located outside of the existing exploitation licenses, as well as enabling the development of some satellite deposits in the Tomaszów Basin, which may prove difficult due to environmental factors.

Morphological, thermal and optical studies of jute-reinforced PbSrCaCuO–polypropylene composite

2016 ◽  
Vol 30 (31) ◽  
pp. 1650379
Author(s):  
Reenu Jacob ◽  
Jayakumari Isac
Keyword(s):  
Raw Materials ◽  
Natural Fibers ◽  
Ceramic Matrix ◽  
Ceramic Composites ◽  
Jute Fiber ◽  
Optical Studies ◽  
New Research ◽  
Tga And Dsc ◽  
Thermal Stability Of ◽  
Modern Technologies

New research with modern technologies has always grabbed substantial attention. Conservation of raw materials like natural fibers has helped composite world to explore eco-friendly components. The aim of this paper is to study the potential of jute fiber-reinforced ceramic polymers. Alkali-treated jute fiber has been incorporated in a polypropylene ceramic matrix at different volume fractions. The morphological, thermal and optical studies of jute-reinforced ceramic Pb2Sr2CaCu2O9 (PbSrCaCuO) are studied. Morphological results evidently demonstrate that when the polypropylene ceramic matrix is reinforced with jute fiber, interfacial interaction between the varying proportions of the jute fiber and ceramic composite takes place. TGA and DSC results confirm the enhancement in the thermal stability of ceramic composites reinforced with jute fiber. The UV analysis of the composite gives a good quality measure on the optical properties of the new composite prepared.

scholarly journals Influence of the composition of the oak bark extract and chlortetracycline on hematological blood parameters of broiler chickens

2019 ◽  
Vol 118 ◽  
pp. 01017
Author(s):  
Olga Kvan ◽  
Galimzhan Duskaev ◽  
Elena Sheida ◽  
Shamil Rakhmatullin ◽  
Dianna Kosyan
Keyword(s):  
Broiler Chickens ◽  
Raw Materials ◽  
Blood Parameters ◽  
Bark Extract ◽  
Infectious Agents ◽  
Natural Origin ◽  
Poultry Breeding ◽  
Animal Feeding ◽  
Modern Technologies ◽  
Poultry Farming

Poultry farming is one of the most profitable and highly productive branches of agriculture. However, despite the achievements, there are many unresolved problems remaining in industrial poultry breeding. In particular, violating technological rules of feeding and housing and an amiss environmental state lead to deterioration of the immune system and development of a number of pathologies, which heavily reduces the productivity of this area of agriculture. Based on the above, much attention is focused on the search for drugs that would optimize the metabolism in the bird’s organism, struggle with infectious agents, and increase the productivity of an organism. The study allows to comprehensively examine the properties of plants containing phytobiotic components and the use of modern technologies for producing and standardizing these components, when their experimental and manufacturing approbation lets widely apply plant extracts to animal feeding as dietary supplements of the latest generation based on raw materials of natural origin.

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