scholarly journals Infrared spectroscopy as the method for evaluating technological properties of minerals and their behavior in technological processes

2020 ◽  
Vol 166 ◽  
pp. 02002
Author(s):  
Ihor Kholoshyn ◽  
Natalia Panteleeva ◽  
Oleksandr Trunin ◽  
Liudmyla Burman ◽  
Olga Kalinichenko
Keyword(s):  
Infrared Spectroscopy ◽  
Raw Materials ◽  
Structure And Properties ◽  
Technological Properties ◽  
Mineral Raw Materials ◽  
Operational Analysis ◽  
Technological Processes ◽  
Innovative Solutions ◽  
Technological Processing

Infrared spectroscopy (IR) is a highly effective method for the analysis of minerals, rocks and ores, capable of solving a whole range of problems when choosing innovative solutions for the technological processing of various types of mineral raw materials. The article considers the main directions of using the infrared spectroscopy method in assessing the technological properties of minerals and their behavior in technological processes: evaluation of the grade (quality) of mineral raw materials; analysis of the behavior of minerals in the technological process with prediction of their technological properties; analysis of changes in the structure and properties of minerals in technological processes; operational analysis of mineral substances at various stages of technological processing. The article illustrates all aspects of the use of infrared spectroscopy at various stages of studying the material composition of mineral raw materials in its enrichment assessment by specific examples of solving problems arising from the technological redistribution of various types of ore and non-metallic minerals.

scholarly journals Research into special technological effects for formation of wear resistant coatings using mineral raw materials of the far eastern region

2018 ◽  
Vol 56 ◽  
pp. 03027
Author(s):  
Viktor Makienko ◽  
Igor Romanov ◽  
Pavel Sokolov ◽  
Alexander Atenyaev ◽  
Dmitry Pervakov
Keyword(s):  
Mechanical Properties ◽  
Raw Materials ◽  
Experimental Studies ◽  
Eastern Region ◽  
Mineral Raw Materials ◽  
Wear Resistant Coatings ◽  
Thermal Fields ◽  
Additional Influence ◽  
Far Eastern

The results of the study of the possibility of using additional technological influence in the formation of doped coatings are presented. The distribution of thermal fields has been calculated, which makes it possible to estimate and predict the influence of additional influence on the formation of the coating in a simplified manner. Experimental studies have shown that additional technological influence promotes mixing of the melt, leading to an increase in the transition of alloying elements, as well as an increase in the mechanical properties and quality of the weld metal.

scholarly journals The changes in the structure of mineral raw materials needs in Poland between 2011−2015

2017 ◽  
Vol 33 (4) ◽  
pp. 5-27 ◽  
Author(s):  
Ewa Lewicka ◽  
Anna Burkowicz
Keyword(s):  
Fossil Fuels ◽  
Statistical Data ◽  
Raw Materials ◽  
Renewable Energy Sources ◽  
Hard Coal ◽  
Domestic Economy ◽  
Mineral Raw Materials ◽  
Eu Directives ◽  
Restricted Use

Abstract An assessment of current demand for mineral raw materials in the domestic economy as well possibilities to satisfy the needs of the industry has been performed for the period 2011-2015 on the basis of estimated values and volumes of their consumption, as well as indices of the share of importation in the consumption and percentage of production sold abroad. Domestically consumed mineral raw materials have been assigned to groups corresponding to the main way of their usage, distinguishing:fuels, metallic, ceramic, chemical, construction, and others. Complementary to the presented demand- supply relations are trade balances of selected commodities. Analysis of available statistical data showed that the demand for substantial number of mineral raw materials in Poland has been met by imports and this probably will be continued in future. The reasons for Poland’s sustained import dependency of mineral raw materials is the lack or insufficient reserve base, as well as low quality of raw materials available from deposits occurring in the country. The exceptions are construction raw materials and some ceramic ones, as well minerals exported in significant qualities (e.g.: refined copper, silver, zinc, sulphur, lead raw materials, or selenium), for which it can be stated that their domestic supplies may fully satisfy the demand of the national economy. On the other hand, the scale of utilization of such fuels as hard coal and lignite, which represent very significant item in Poland’s total energy mix, may be greatly reduced in the light of EU directives aimed at restricted use of these fossil fuels. The possible alternative is development of the use of renewable energy sources, while in the case of metals - improved recycling of scrap and metal-bearing wastes.

scholarly journals Latvijas minerālās izejvielas eko-keramikas izstrādei

2018 ◽  
Vol 35 ◽  
pp. 62-85
Author(s):  
Gaida Sedmale ◽  
Māris Rundāns ◽  
Mārtiņs Randers ◽  
Ingunda Šperberga ◽  
Andris Cimmers
Keyword(s):  
High Temperature ◽  
Ceramic Material ◽  
Gas Phase ◽  
Phase Formation ◽  
Raw Materials ◽  
Ceramic Materials ◽  
Firing Process ◽  
Mineral Raw Materials ◽  
Technological Processes ◽  
Insight Into

Darbā dots ieskats par iespējām izmantot Latvijas minerālās izejvielas kā bāzi vai  piedevu  keramikas  materiālu  (eko-materiālu)  izstrādei ar dažādu pielietošanas aspektu, to skaitā parādīt iespēju šo materiālu ieguves tehnoloģisko procesu optimizēšanai virzībā uz to apdedzināšanas temperatūras samazināšanu, līdz ar to reducējot kaitīgu gāzveida izmešu nonākšanu vidē. Parādīti darbu rezultāti laika periodā no 2007. g. līdz 2017. g. Tiek apskatīti un analizēti sekojoši pētījumi:neapstrādāta māla pielietošana atkritumu deponēšanas vietu noblīvēšanai;daļēji dehidratizēta māla pielietošana Cr3+, Cr6+, Zn2+ un Cu+ jonu sorbcijai, kas veidojas galvanisko procesu notekūdeņos; poru saturošas augsttemperatūras keramikas izstrāde no jauktiem izejvielu maisījumiem, kas nodrošina pietiekamu gāzveida fāzes izveidošanos keramikas apdedzināšanas procesā, veidojot poras, lai pielietotu par filtrēšanas/attīrīšanas materiālu;illīta māla piedevu izmantošana, lai pazeminātu augsttemperatūras blīvas keramikas saķepināšanas/apdedzināšanas temperatūru, iegūstot ilgspējīgu mehāniski un termiski izturīgu produktu; kā arī tehnoloģiskie procesi, kas nodrošina porainas, siltumu izolējošas keramikas materiāla ieguvi pie pazeminātām temperatūrām (ģeopolimēru metode).Mineral Raw Materials of Latvia for Development of Eco-CeramicsThe paper gives an insight into the possibilities to use Latvian mineral raw materials as a base or additives for the development of ceramic materials (eco- materials) with different application aspects, including showing the possibility of optimizing the technological processes of these materials towards the reduction of their firing temperature, thereby reducing the release of harmful gaseous effluents into the environment.The results of the works that are reported in the period were obtained from  2007 to 2017. The following studies are reviewed and analyzed: the use of untreated clay for the sealing of waste deposits; the use of partly dehydrated clay for sorption of Cr3+,6+, Zn2+ and Cu2+, which have formed in galvanic processes; the development of porous high temperature ceramics from mixes  of mineral raw materials and synthetic additives that provide a sufficient gas phase  formation in the firing process and consecutively to form pores in obtained ceramic material; the use of illite clay additives to reduce the temperature of sintering of high temperature dense mechanical and thermally durable ceramics, as well as technological processes that ensure the production of porous, heat-insulating ceramic materials at reduced temperatures (geopolymer method).

scholarly journals Heat Processing and Change of Proper Indicators of Basalts

Land Science ◽  
2020 ◽  
Vol 2 (2) ◽  
pp. p1
Author(s):  
Rashidova R K ◽  
Kurbanov Abdirakhim Ahmedovich ◽  
Aliyev T ◽  
Jiyanov A B ◽  
Turdieva O J ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Chemical Composition ◽  
Raw Materials ◽  
Practical Interest ◽  
Heat Processing ◽  
High Quality ◽  
Mineral Raw Materials ◽  
Different Color ◽  
Basalt Rock

This paper presents the results of the analysis of the quality of basalts, their heat treatment and studies of changes in the chemical composition of basalts, which leads to a change in the external color of partially processed basalt raw materials (hereinafter referred to as semi-finished product). The results of a study of purified basalt from slime, impurities and hydroxides, changes in the chemical composition of basalt rock are presented. The prospects of heat treatment of a semi-finished product and obtaining multi-colored products from mineral raw materials is shown. It was found that the optimal firing temperature of the semi-finished product, the possible options for changing the external color and the criterion points of the thermal effect at which the basalt semi-finished product changes the external shade. These statements are of great scientific and practical interest in the fact that during the heat treatment of a semifinished product, basalt easily overheats and gradually acquires a different color, which occurs to a liquids temperature and allows the future to plan to obtain high-quality multi-colored products from basalts, for example, products for design.

scholarly journals BUILDING A DIGITAL RESEARCH METHODOLOGY IRREGULARITIES IN THE SURFACE DENSITY OF NONWOVENS

2021 ◽  
Vol 52 (2) ◽  
pp. 5-10
Author(s):  
Nikolay A. Korobov ◽  
Natal’ya A. Gruzintseva ◽  
Marina A. Lysova ◽  
Boris N. Gusev
Keyword(s):  
Surface Density ◽  
Information Technologies ◽  
Quality Management System ◽  
Raw Materials ◽  
Output Control ◽  
Production Chain ◽  
Technological Processes ◽  
Final Output ◽  
Quality Of Products

Ensuring the required level of quality of products produced by textile enterprises involves not only the final (output) control of its quality indicators, but also ensuring operational control over the relevant characteristics of raw materials and semi-finished products in technological processes throughout the entire production chain of textile material. Within the framework of the functioning of the quality management system of a textile enterprise, when conducting operational monitoring of technological processes, appropriate automated technical controls are required, built with the use of modern information technologies. In this paper, in order to assess the quality of the carding process in the production of combed or carded yarn, a method is proposed for the digital study of the structural unevenness in the surface density of this type of non-woven material, based on the principle of determining the sectorial and radial characteristics for this quality indicator.

Production risk management in industrial poultry farming

2021 ◽  
Author(s):  
Syergyey YEngashyev ◽  
Tamara Okolelova ◽  
Ekaterina Engasheva ◽  
Irina Lesnichenko ◽  
Vladimir Titov ◽  
...  
Keyword(s):  
Risk Management ◽  
Product Quality ◽  
Raw Materials ◽  
Production Risk ◽  
Mineral Raw Materials ◽  
Water Feed ◽  
Main Production ◽  
Poultry Farming ◽  
Production Risks

The manual summarizes the main production risks associated with mycotoxicosis, the use of herbicides, dysbacteriosis, the quality of premixes, mineral raw materials, water, feed, technological and biological stresses, and provides recommendations for minimizing livestock losses, poultry productivity and product quality in the production of eggs and meat.

scholarly journals Evaluation of honey as a dessert in hotel and restaurant complexes

2021 ◽  
Vol 23 (96) ◽  
pp. 102-105
Author(s):  
S. Merzlov ◽  
Yu. Shurchkova ◽  
V. Nedashkivskyi ◽  
G. Merzlova ◽  
N. Nedashkivska
Keyword(s):  
State Standard ◽  
Raw Materials ◽  
National Standard ◽  
National State ◽  
Technological Processes ◽  
Light Yellow ◽  
Scientific Laboratory

The article presents the results of research of honey as a dessert in hotel and restaurant complexes of Bila Tserkva region. The analysis of researched samples of honey with the use of laboratory researches which were carried out in the conditions of scientific laboratory of chair of safety and quality of foodstuff, raw materials and technological processes of Bila Tserkva national agrarian university is carried out. The research was conducted in accordance with the national standard of Ukraine DSTU 4497. according to generally accepted methods. Color, taste, aroma, consistency, crystallization, signs of fermentation were determined organoleptically using the sensory method of analysis of honey. It was found that in all samples the color of honey was from light yellow to yellow, with a pleasant taste and aroma, without signs of fermentation and the content of mechanical and other impurities. The diastasis number of honey samples used by hotel and restaurant complexes is 14, 10 and 8 units, respectively. Goethe, which indicates the heating of part of the honey. Thus, the results of research have shown that honey, which is used in hotel and restaurant complexes of Bila Tserkva region as a dessert in terms of organoleptic indicators, meets the requirements of the national state standard.

scholarly journals AUTOMATED TECHNOLOGICAL PROJECTION OF CLASSIFICATION PROCESSES OF DRY DISPERSIVE MATERIALS

2021 ◽  
pp. 15-21
Author(s):  
Ivan Sevostianov ◽  
Oleksii Tokarchuk ◽  
Maryna Pidlypna
Keyword(s):  
Food Processing ◽  
Raw Materials ◽  
Mass Density ◽  
Wide Spread ◽  
Technological Processes ◽  
Processed Material ◽  
Effective Technology ◽  
Selection Of

Processes of classification (separation) of dry and damp dispersive materials are wide spread in metallurgy, construction, agriculture, in chemical, food, processing industry and in other branches. Therefore, constructors and technologists pay a lot of attention for rationalization of these processes and equipment for their realization in direction of increase of productivity and quality of classification, reliability of machines, decrease of power-consuming. In last decades in Ukraine with development of small and middle farming enterprises there is a tendency of increase of variety of grain raw materials by kinds, grades, humidity, sizes, mass, density and volume of particles. All this should consider food and processing enterprises which often work in quite intensive regime in a period of harvest. So, in last time there become more strong demands to efficiency of technological preparation of processes classification for selection of most rational method, equipment and regimes of processing with consideration of parameters of raw materials and demands of further technological processes (grinding, mixing, heating, cooking, frying etc). Because of that, there will be useful a method of automated technological projection of classification processes of dry dispersive materials, proposed in this article. The method allows to elaborate most effective technology of classification with consideration of volume of output program, time for its fulfilment, geometrical and structural-mechanical properties of processed material, characteristics of available equipment for classification and criterions of efficiency of elaborated technology – productivity and specified operational expenses for its realization. The method can be used as a base for elaboration of a computer program of automated synthesis and analysis of rational technological processes of classification of grain raw materials.

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