Phosphates of the Streltsovsky ore field of South-Eastern Transbaikalia (Part II)

2021 ◽  
Vol 27 (3) ◽  
pp. 42-52
Author(s):  
Yu. Pavlenko ◽  

The reliability of the conclusions of geologists who created the largest uranium ore base in the country on the territory of the Streltsovsky ore field (SRP) in South-Eastern Transbaikalia, about the spatially isolated phosphate mineralization and powerful industrial mineralization belonging to a single final stage of Late Mesozoic tectonomagmatitic activation, is clarified. The relevance of the research is the need to study the geological materials on the PSA and the surrounding area to assess the prospects for involving in the exploitation of phosphate mineralization developed on the flanks of uranium deposits developed under the state program of the TOP. The object of study is the “blind” Argun and Zherlovoe deposits and their western flanks on the surface, and the subject is the phosphate mineralization developed in the block of terrigenous-carbonate rocks. The purpose of the research is to clarify the time and features of the phosphates’ formation, and the task is to assess the industrial significance of phosphate mineralization to make a decision on the feasibility of additional study of this scarce raw material. The methodology of scientific research is based on the interpretation of geological facts given in the literature and stock materials, use of concepts, terms, creation of hypotheses and their consequences, consistency of the comparison of which with the established facts determines the relatively high reliability of geological results. The author has used a descriptive method that takes into account a system of interrelated consistent positions, and a method of theoretical modeling, which raises the strategic goals of nature cognition to a higher scientific level. The results of the research are presented in three articles (parts). The second part describes the characteristics of uranium-molybdenum deposits, phosphates of the region and PSA, and the Talan manifestation of apatites. It is established that the Talan manifestation, despite the limited volume of the estimated reserves, has extremely favourable conditions for the economic feasibility of its study and, possibly, industrial development. Phosphate mineralization belongs to the complex of Precambrian metamorphic rocks. Apatite-carbonate and apatite-silicate subtypes of the phosphate sorption-biogenic metalliferous formation combine the promising second and third most important industrial types of apatite deposits. It is recommended to perform geological exploration of the estimated stage on an area of 20 hectares, paying special attention to the development of technology for processing mineral raw materials and to test the electrothermal method for producing effective fused phosphate-magnesium fertilizers used in the project of the Seligdar mining and Chemical Complex

2021 ◽  
Vol 27 (4) ◽  
pp. 20-31
Author(s):  
Yu. Pavlenko ◽  

The conclusions’ reliability of geologists who created the largest uranium ore base in the country on the territory of the Streltsovsky ore field (SOF) in the South-Eastern Transbaikalia, about the belonging of spatially isolated phosphate mineralization and powerful industrial mineralization to a final stage of Late Mesozoic tectonomagmatitic activation, is clarified. The relevance of the research lies in the need to study the geological materials at the SOF and the surrounding area to assess the prospects for involving in the exploitation of phosphate mineralization developed on the flanks of uranium deposits developed under the state program of the TOP. The object of study is the “blind” Argunskoye and Zherlovoye deposits and their western flanks on the surface, and the subject is the phosphate mineralization developed in the block of terrigenous-carbonate rocks. The purpose of the research is to clarify the time and features of the formation of phosphates, and the task is to assess the industrial significance of phosphate mineralization for decision-making. The methodology of scientific research is based on the interpretation of geological facts given in the literature and stock materials, use of concepts, terms, creation of hypotheses and their consequences, consistency of the comparison of which with the established facts determines the relatively high reliability of geological results. The author has used a descriptive method that takes into account a system of interrelated consistent positions, and a method of theoretical modeling, which raises the strategic goals of nature cognition to a higher scientific level. The results of the research are presented in three articles (parts). In the second part, phosphates of the region and SOF are characterized. It is established that the Talan manifestation of apatites belongs to the phosphate sorption-biogenic metalliferous formation of the Precambrian metamorphic rocks complex and combines the promising second and third most important industrial types of deposits. It is recommended to perform geological exploration at the evaluation stage and to test the electrothermal method for producing fused phosphate-magnesium fertilizers. In the third part, the known types of phosphogenesis and the genetic features of their manifestation in PSA are considered. Attention is drawn to the advantage of the recommended electrothermal method for processing apatite-carbonate and apatite-silicate rocks of the Talan manifestation


2021 ◽  
Vol 27 (2) ◽  
pp. 15-27
Author(s):  
Yu. Pavlenko ◽  

The conclusions’ reliability of the geologists who created the largest uranium ore base in the country on the territory of the Streltsovsky ore field (SRP) in South-Eastern Transbaikalia, about the belonging of spatially isolated phosphate mineralization and powerful industrial mineralization to a single final stage of Late Mesozoic tectonomagmatitic activation, is clarified. The relevance of the research lies in the need to study the geological materials on the SRP and the adjacent area to assess the prospects for involving in the exploitation of phosphate mineralization developed on the flanks of uranium deposits developed under the state program of the TOP. The object of study is the “blind” Argunskoye and Zherlovoye deposits and their western flanks on the surface, and the subject is the phosphate mineralization developed in the block of terrigenous-carbonate rocks. The purpose of the research is to clarify the time and features of the formation of phosphates, and the task is to assess the industrial significance of phosphate mineralization to make a decision on the feasibility of additional study of this scarce raw material. The methodology of scientific research is based on the interpretation of geological facts given in the literature and stock materials, use of concepts, terms, creation of hypotheses and their consequences, consistency of the comparison of which with the established facts determines the relatively high reliability of geological results. We used a descriptive method that takes into account a system of interrelated consistent positions, and a method of theoretical modeling, which raises the strategic goals of nature cognition to a higher scientific level. The results of the research are presented in three articles (parts). The first part contains information about the structural and geological positions of the region, the ore field, and the geological structure of the Western tectonic block of the SRP and the Argun, as well as the Vent uranium deposits. It is established that phosphate mineralization is the product of metamorphic transformations of Riphean phosphorites and igneous apatites associated with the Middle Riphean moderately alkaline peridotite-gabbro-gabbrodiorite complex. Phosphate mineralization is older than the Late Mesozoic uranium and other types of industrial mineralization by at least 1 billion years


1982 ◽  
Vol 21 (4) ◽  
pp. 329-333
Author(s):  
Rashid Aziz

The book under review is a concise but fairly in-depth study of the prospects for export diversification from the Less Developed Countries (henceforth labeled as LDCs) particularly to Developed Countries (henceforth labeled as OCs). Given the multiple problems faced by the LOCs in exporting to the OCs - protectionist policies with regards to manufactured exports, volatility of prices obtained for raw material exports, etc. - the study analyses the potential for following an intermediate route. The important issues in the export of semi -processed and wholly processed raw materials are discussed. 111ese issues range from the problems and potentials for the location of processing facilities in the LOCs to the formulation of appropriate policies to encourage an export of processed goods rather than raw materials. Such policies will be useful both in solving the balance of-payments problems of the LDCs and in attaining the goal of the Lima Declaration and Plan of Action on Industrial Development and Co-operation, that called for 2S percent of world industrial production to be located in the LOCs by the year 2000.


2000 ◽  
Vol 15 (1) ◽  
pp. 2-8 ◽  
Author(s):  
N.C. Wagner ◽  
S. Ramaswamy ◽  
U. Tschirner

AbstractA pre-economic feasibility study was undertaken to determine the potential of cereal straw for industrial utilization in Minnesota. Specifically, utilizing straw for pulp and paper manufacture was of interest. The availability of cereal straw fiber supplies at various locations across the state of Minnesota, along with pre-processing issues such as transportation, harvesting, handling, and storage, are discussed and priced. The greatest economic advantage of straw for industrial use appears to be the low cost of the raw material compared to traditional raw materials. This also provides an excellent opportunity for additional income for farmers. The methodology and information provided here should be helpful in evaluating the feasibility of utilizing straw for other industrial purposes in other parts of the world. However, in some Third World countries, long-standing on-farm, traditional uses of cereal straws for fuel, fiber, and animal feed may limit their availability for industrial utilization.


Author(s):  
M. Kurylo ◽  
V. Bala

The purpose of this study is to analyze and systematize criteria by which, in domestic and international practice, the industrial value of coal deposits with small and insignificant reserves is determined. The analysis and systematization of such factors in general for all coal deposits with the definite definition of the most influential characteristics for small stocks are carried out. Mining and geological factors, which are caused by natural characteristics of the deposit and directly related to the concrete object, are determined, and there have been singled out factors concerning the minerals in general or characterizing the external conditions of industrial development of deposits. For coal deposits with insignificant reserves, the criteria that directly affect the most critical parameter - the value of coal reserves and, consequently, the lifetime of the mining enterprise have paramount importance. Such criteria are the quality of coal, which defines the direction of use and its liquidity, the degree of geological study, which expresses the geological risks of reserves confirmation, and the complexity of mining technical conditions that define methods and systems for the reserves disclosure and development. In general, external factors for coal deposits are most affected by the availability of raw material substitutes and market conditions, and coal prices. For deposits with insignificant reserves, prices and possibility of mining, which involves availability of licenses and social permits, may have a greater impact. Industrial significance of deposit with insignificant reserves may appear favorable of all other conditions of development - mining and technical conditions that form low cost of production, coal quality, favorable market conditions for mineral raw materials, localization of the deposit near consumers, etc. At the same time, the main prerequisite for attracting objects with insignificant reserves to exploitation should be their high degree of geological study. Decision about possible industrial significance should be taken after detailed technical and economic calculations.


2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Nazar Tkach ◽  
◽  
Tetiana Mirzoieva ◽  

The article presents a study on the justification of the economic feasibility of processing cereals into biogas. Аt the first stage the sown areas and productivity of separate agricultural crops in the investigated enterprises of Brovarsky district, Kyiv region were analyzed. The tendency to increase the yield of agricultural crops in the studied enterprises was revealed. This was seen as evidence that they could potentially be fully self-sufficient in raw materials for the production of gaseous biofuels. At the second stage of the study, the potential volume of the raw material base for biogas production in the studied enterprises was calculated, potential volume of biogas production and economically feasible volume of biogas production for each enterprise. It is proposed to use part of the grown grain for bioenergy production, and this part should be 10-15% of the gross harvest of grain enterprises in order to prevent the food crisis in the country. At the third stage of the study to determine the economic efficiency of biogas production from wheat and corn, investment costs were calculated, necessary for the implementation of the project to install a biogas plant in the studied enterprises. The authors calculated the investment costs required to implement the project of installing a biogas plant at the studied enterprises. The authors also analyzed the costs of each company for future projects. Finally, the economic efficiency of the proposed project for biogas production in the studied enterprises of Brovary district, Kyiv region is calculated, the economic efficiency of the project in the long run is analyzed with the use of discounted indicators of economic efficiency with a life cycle of 5 years. It was found that the implementation of projects for biogas production may be accompanied by high efficiency, all enterprises will receive profits from the implementation of investment projects for the production of biogas and biofertilizers with the subsequent sale of biogas and the use of biofertilizers for their own needs.


2021 ◽  
Vol 31 (1) ◽  
pp. 14
Author(s):  
Dewi Sri

Introduction: Material Requirement Planning (MRP) is a technique or a logical procedure to translate the Master Production Schedule (MPS) of the finished goods or end item into the net requirements for some of the components needed to implement the MPS. MRP is used to determine the amount of material needs to support the Master Production Schedule and when the material needs to be scheduled.Methods: The study is conducted on 13 August 2018 until 12 September 2018 at the installation Nutrition RSIA Kendangsari Merr Surabaya. Collecting data in this study using several methods, including: observation- This stage is conducted in all parts related to the object of study, starting from the Purchase Order (PO) by a head cook up to raw material stored in the storage, discussion- author interviews and collects data to communicate and discuss with the respondents. Respondents in this study are the head of the nutrition unit and head cook of RSIA who have the authority doing the purchasing.Results: Planning of procurement of raw materials to the menu rawon in RSIA can use the Exponential Smoothing method. The discussion has compared two methods of forecasting and the results are consistent with the demand’s patterns of Simple Moving Average method, Exponential Smothing. Forecasting has the lowest error rate by using Exponential Smoothing. The second conclusion is a technique of determining the appropriate Material Requirement Planning in raw material procurement to menu rawon in RSIA is using Lot for Lot.


2013 ◽  
Vol 838-841 ◽  
pp. 2338-2341
Author(s):  
Marcela Fridrichová ◽  
Karel Dvořák ◽  
Iveta Hájková

The insufficient occurrence of raw material resources on our territory was one of the historical reasons for marginal production of sulphated binders from secondary raw-material resources. Also the unprofitability of material production based on calcium sulphate was related to this fact. This was changed in the end of the last century when formation of waste raw materials increased with industrial development. Secondary gypsums became basic raw material for production of plaster boards, plaster mixtures and anhydrite self-levelling mixtures. Wet flue gas cleaning desulphation process during which the energogypsum is formed is nowadays realised in major part of our power stations. Annual production of the energogypsum produced in this way in particular power stations is about 250 kt. The energogypsum is generally stored in stock piles as a so called stabilisate and partially is delivered to cement works as a solidification regulator. Chemogypsum is produced in chemical works where waste waters with content of SO42- occur, which must be desulphated with lime in water ambient. Further it is formed in citric acid productions where also sulphated waters occur. Last but no least it is also produced in industrial production of phosphates. Production of titanium dioxide is another example of the industry where the possibility of gypsum formation exists.


Author(s):  
E. A. Banshchikova ◽  
I. L. Vakhnina ◽  
T. V. Zhelibo

The article presents the results of studying the coenopopulation of Saposhnikovia divaricata (Turcz.)Schischkin in the steppes of South-Eastern Transbaikalia. The species is subject to spontaneous destruction (massharvesting of root raw materials) throughout the central and southern part of the Trans-Baikal territory, which is why in2018 it was included in the list of flora objects listed in the Red Book of the region. During the expedition, the currentstate, density, and vitality of the coenopopulation were studied, and the phenological state of plants and the degree ofanthropogenic impact on the coenopopulations were evaluated.


2018 ◽  
pp. 74-83
Author(s):  
V. M. Minarchenko ◽  
V. G. Kaplunenko ◽  
L. А. Glushchenko ◽  
N. P. Коvalska ◽  
L. М. Babenko

Chemical substances, which accumulate selectively by plants, can influence at their pharmacological action: to increase or decrease their absorption, resorptive properties; be synergists or antagonists, as well as to reduce or enhance the toxic effect. Potentilla erecta used in traditional herbal medicine system in many countries due to high therapeutic value. The concentrations of secondary metabolites in the plant raw materials are well understood. However, the data on concentration of trace and major elemental composition of it raw material remains extremely insufficient. The aim of our study was to examine the elemental compound of P. erecta rhizomes. The object of study was the rhizomes of P. erecta from a various natural zones of Ukraine (Carpathians, Polesie). Raw material was analyzed by atomic emission spectrometry with inductively coupled plasma. Twenty nine elements were identified in studied samples.  It was established that the level of concentration decreases in this sequence: Ca > S > Mg > K > Sn > I > P > Ba > Al > Zn > Mn > Fe > Sr > Si > Ag > Cr > Ni > Cu > Pb > V > Se > Ti > Cd > Ge > Na > Mo > Co > As > Bi. Ca, S and Mg are present in high concentrations in both analyzed samples of P. erecta. K, Sn, I, P, Ba and Al were identified in quantities of more than 100 mg/kg. Other elements found in small quantities. The content of some metals was significantly different in the analyzed samples. The main reason is, probably, the difference between the ecological conditions of plants habitats. The experimental data can be used for prognosing and planning pharmacological research of P. erecta and development of quality control methods for plant material of this medicinal plant.


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