A new method for the production of compote from grapes in self-exgaustible glass jars 1-82-500

Проблема повышения пищевой ценности консервируемых пищевых продуктов в герметически укупоренной таре может быть успешно решена на основе интенсификации процесса тепловой стерилизации. В работе представлены результаты исследований по совершенствованию технологии производства консервированного компота из винограда с использованием самоэксгаустируемой тары и интенсификации процесса тепловой стерилизации, являющейся наиболее широко используемым методом консервирования пищевых продуктов, совершенство которой во многом определяет пищевую ценность готового продукта. Известно, что продолжительность и температурный уровень стерилизационного процесса существенно могут изменить качественный и количественный состав витаминов, белков, углеводов, минеральных и органических кислот и других веществ, что зачастую приводит к снижению пищевой ценности продукта. На основе оценки традиционного стерилизационного режима разработаны и предложены новый способ и режимы стерилизации, которые обеспечивают сокращение продолжительности тепловой обработки более чем на 30 % и повышение пищевой ценности готовой продукции. Установлено, что предварительное повышение температуры продукта и использование самоэксгаустируемых стеклобанок обеспечивают сохранение витамина С в готовом продукте на 0,8 мг/% выше, чем по традиционной технологии. Полученные результаты представляют интерес для реализации на предприятиях по переработке растительного сырья. The problem of increasing the nutritional value of canned food products in hermetically sealed containers can be successfully solved by intensifying the process of thermal sterilization. The paper presents the results of research on improving the technology of production of canned compote from grapes using self-exgaustible containers and intensifying the process of thermal sterilization, which is the most widely used method of preserving food products and the perfection of which largely determines the nutritional value of the finished product. It is known that the duration and temperature level of the sterilization process can significantly change the qualitative and quantitative composition of vitamins, proteins, carbohydrates, mineral and organic acids and other substances, which often leads to a decrease in the nutritional value of the product. Based on the assessment of the traditional sterilization regime, a new method and modes of sterilization have been developed and proposed, which provide a reduction in the duration of heat treatment by more than 30 % and an increase in the nutritional value of the finished product. It was found that the use of a preliminary increase in the temperature of the product and the use of self-exgaustible glass jars ensures the preservation of vitamin C in the finished product by 0.8 mg/% higher than by traditional technology. The results obtained are of interest for implementation at plants processing plant raw materials.

Smelting options for carbon ferrochrome based on ore raw materials, middlings and their technological evaluation

The article presents the results of large-scale laboratory tests carried out in the conditions of the Chemical and Metallurgical Institute named after V.I. Zh. Abishev on the use of briquetted mono-charge in the smelting of carbon ferrochrome on a 250 kVA furnace. The purpose of these studies was to determine the technological parameters of the use of briquetted mono-charge containing in its composition chrome ore, wastes from the production of high-carbon ferrochrome, middlings and various carbonaceous reducing agents. The main idea of using these briquettes was to multiply the contact surface of the reductant and ore, which should speed up the technological process. The principal possibility of smelting a standard alloy using briquetted mono-charge is shown. The alloy for individual charge options meets the requirements of the standards. In comparison with the technology without the use of briquettes, the mono-charge technology has shown advantages in all main parameters. The technology with the use of briquettes from the dust of the AktZF gas cleaning system is distinguished by a low yield of non-standard metal and slag, the bulk of the material goes into the gas collection system. Technologies from briquettes from fines pellet production area of Donskoy ore mining and processing plant and flash have very low specific technical and economic indicators and cannot be recommended for industrial use. Improvement of briquetting modes and technology of their smelting is required. The technical and economic indicators were higher than the current one, showed briquettes from ore and coke of the People's Republic of China, briquettes of ore from borlin and shubarkol coals of Kazakhstan.

Prospects and priorities for the reconstruction and development of lithium mining production on the basis of domestic raw materials

The prospects of lithium as a component of new energy are considered. Provides data on the resources of lithium mineral raw materials. Variants of the reconstruction of lithium production facilities in Russia from domestic raw materials are evaluated in order to solve the problem of import substitution. Attention is focused on the choice of objects of priority industrial development and the need to create modern technologies for processing lithium raw materials. It is shown that the restored Zabaikalsk mining and processing plant can be a reliable source of lithium when using new technological solutions for extracting lithium and associated useful components from primary ores and waste of spodumene ores.

Impact of the Sanitation Regime on Production Safety of Paff Pastry in the Food Processing Plant

Food is essential for a person's life, it is a source of energy and substances that enable the activity of all his organs. However, food is also a biological substance, which itself is subject to certain changes, sometimes targeted in their production or cooking, sometimes undesirable changes due to the activity of certain food components or the action of microorganisms.The primary role of each food processing plant should be to ensure daily proper cleaning and sanitation, thus ensuring perfect hygiene of the premises in operation due to the prevention of foodborne diseases. Based on the results obtained in our study, we can concluce that the sanitation regime in the evaluated premises of paff pastry production is at a good level and the disinfection in the production of puff pastry is effective. Aspiral Persteril 15 disinfectant at 0.4 % concentration and time exposure of 30 minutes was effective on all evaluated surfaces in individual monitored parts of production with the exception of puff pastry production part, where we recorded on technology, specifically on slicing knife 35 CFU (colony forming units) of total count of bacteria and 3 CFU of coliform bacteria after disinfection. The situation did not improve even until the begining of production, the total count of bacteria increase to 45 CFU and coliform bacteria to 4 CFU.

Production of electrolytic copper from Zhezkazgan Processing Plant tailings leaching solutions using a hydro-impulse discharge

In this work, for the first time, studies of the mineralogical composition and chemical semi-quantitative spectral analysis (SQSA) of the Zhezkazgan processing plant tailings before and after leaching were carried out. It was found that copper is present in the tailings in the form of the chalcosine and bornite minerals. After leaching with the use of ammonium bifluoride and a hydro-pulse discharge, chalcosine and boronite are destroyed, and copper passes into a solution containing phosphoric acid. As a result of multiple placing of tailings into the solution, the copper content in it is brought to a concentration at which copper deposition on a stainless steel plate is possible. The identification of copper was implemented on a LAES-Matrix grain spectrometer. A visual comparative analysis of the changes in the structure of the treated ore waste was carried out using a TESCAN MIRA scanning electron microscope. Metallic copper was obtained from solution by electrochemical reactions in an experimental laboratory setup as a result. The technology was developed on an experimental laboratory setup for the extraction of metallic copper and brought the choice of the solution medium and electrochemical processes to the stage of obtaining the target metal with a purity of 99.99 %

Problems and Prospects of the Helium Industry in Russia

The transition to an innovative way of development in the gas industry is associated with deep, comprehensive processing of natural gas, the start-up of manufacturing products with high added value. In terms of proven reserves of natural gas, Russia ranks number one in the world, the demand is constantly growing both at the domestic market and for exports. Natural and associated petroleum gases of many oil and gas condensate fields in Russia are multicomponent systems that contain a number of components important for the gas chemical industry (ethane, propane, butane, etc.). The most valuable of these is helium. The purpose of this work is to study the problems and prospects for the development of the helium industry in Russia and in the world. Using the methods of economic analysis, generalization and synthesis, the authors estimated the volume of reserves of helium-saturated gases in the fields of the country and Eastern Siberia, the state of helium production, the potential for using helium in the sectors of the Russian economy, the possibility and conditions of competitive entry into the world market. As a result, they detected Russia’s technological inferiority in a number of industries, coming from the low demand for helium, the location of potential consumers far from production centers, the high cost of helium production, the lack of reliable methods of its transportation, etc. At the same time, full-scale helium demand satisfaction of Russian industries is associated with the construction of the Amur Gas Processing Plant. The demand for helium in the countries of the world is constantly growing, an increase in consumption is observed in traditional industries and in the field of innovative technologies. The US dominance in the production of helium is gradually declining due to the depletion of some deposits. The authors make a conclusion that after 2030 Russia can satisfy domestic consumption of helium to bring the industry to an effective economic and environmental level and, while reducing the cost of production, become a major participant in its world market.

Carbon Emission Reduction Strategies Through Cleaner Production at Coconut Milk Processing Plant

The manufacturing industry is one of the most influential sectors contributing to greenhouse gas emissions. As the manufacturing industry strives to achieve its profit goal, most of them face various circumstances to control the rising carbon emissions from the energy, raw material consumption, and waste generations due to production activities. Therefore, it is difficult to quantify the amount of carbon emission reduction if the adjustment is not established according to the manufacturing output. This research concentrates on evaluating energy consumption and waste generation using a statistical approach by a coconut milk processing plant. This research aims to estimate the reduction of greenhouse gas emissions, mainly carbon dioxide (CO2). The baseline models of energy consumptions and waste generations were constructed using single and multiple linear regression methods. Besides, it investigates the performance of ultimate models of electrical consumption, water consumption, fuel consumption, solid waste generation, and wastewater generations using statistical analysis that involves coefficient of correlation, coefficient of determination, analysis of variance (ANOVA), etc. It indicates that with the implementation of the cleaner production (CP) strategy, the plant had reduced 10,474.94 tons of CO2 and 2,579.67 tons of CO2 in 2018 and 2019, respectively. This study is an aid to the management and engineers of the industry to investigate their accomplishment in reducing environmental impacts caused by production activities from any implementation made such as CP and green industry practices.