Physico-chemical characteristics of activated carbons based on a copolymer of furfural and mineral raw materials of the Republic of Kazakhstan and their application in extracting gold from industrial solutions

Разработана технология производства овощного пюре из корнеклубней якона, успешно интродуцированного в Республику Северная Осетия - Алания. Изучая химические показатели корнеклубней якона, установлено, что они отличаются богатым химическим составом и содержат сухих веществ - 11,9 %, протеина - 1,88 %, жира - 0,21 %, клетчатки - 1,06 %, золы - 1,48 %, безазотистых экстрактивных веществ - 9,0 %, инулина - 9,0 %, кислотность - 0,22 %. Якон имеет богатый минеральный состав. В 1 кг корнеклубней якона содержится кальция - 0,4 г, фосфора - 0,3 г, железа - 56,1 мг, меди - 0,57 мг, цинка - 3,0 мг, марганца - 12,6 мг, кобальта - 0,03 мг, йода - 0,01 мг, селена - 0,041 мг. Установлено, что в пюре из якона содержание сухих веществ составляет 15,0 %, что соответствует стандартам, содержание жира достигает 4,5 %, а минеральных примесей - 0,003 %. Растительные и посторонние примеси не обнаружены. По внешнему виду пюре из корнеклубней якона представляет собой однородную пюреобразную массу. Запах пюре фруктовый, без постороннего запаха. Вкус сладковатый, полный, насыщенный с приятным послевкусием, без постороннего вкуса. Цвет пюре однородный по всей массе: от желтого до светло-коричневого. Потемнение поверхностного слоя отсутствует. Особую ценность якону придает наличие в его составе инулина - природного полисахарида, на 95% состоящего из фруктозы, что позволяет корневые клубни якона и полученный продукт из него - пюре - рекомендовать как диетический продукт, в том числе людям, страдающим сахарным диабетом и ожирением. Установлено, что целесообразно использовать корневые клубни якона для производства овощного пюре. Пюре из корнеклубней якона по физико-химическим и органолептическим показателям соответствует требованиям стандартов. A technology to produce yacon pips-besed mashed vegetables successfully introduced to the Republic of North Ossetia - Alania is developed. Studying the chemical parameters of yacon pips, it was found that they differ in rich chemical composition and contain dry matter - 11.9 %, protein - 1.88 %, fat - 0.21 %, fiber - 1.06 %, ash - 1.48 %, nitrogen-free extractives - 9.0 %, inulin - 9.0 %, acidity - 0.22 %. Yacon has the rich mineral composition. 1 kg of yacon pips contains calcium - 0.4 g, phosphorus - 0.3 g, iron - 56.1 mg, copper - 0.57 mg, zinc - 3.0 mg, manganese - 12.6 mg, cobalt - 0.03 mg, iodine - 0.01 mg, selenium - 0.041 mg. It was found that mashed yacon contains 15.0 % of dry matter, which meets standards, the fat content reaches 4.5 %, and mineral admixtures - 0.003 %. No plant or extraneous matter was detected. In appearance, the yacon pips-based mash is a homogeneous, mash-like mass. The mash smell is fruity, free of any foreign smell. The taste is sweet, full, rich, with a pleasant aftertaste, free of foreign taste. The color of the mash is homogeneous throughout the whole mass from yellow to light brown. There is no darkening of the surface layer. The special value of yacon is due to inulin in its composition - natural polysaccharide, consists of 95 % fructose, which allows the yacon pips and the resulting product - mash, to be recommended as a dietary product, including people suffering from diabetes and obesity. It was found that it is advisable to use yacon pips for the production of mashed vegetables. Yacon pips-based mash meets standards in physico-chemical and organoleptic parameters.

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Synthesis and Structure Determination of Carbonized Nano Mesoporous Materials Based on Vegetable Raw Materials

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.535-537.1041 ◽

2012 ◽

Vol 535-537 ◽

pp. 1041-1045 ◽

Cited By ~ 8

Author(s):

Seitkhan Azat ◽

Valodia V. Pavlenko ◽

Almagul R. Kerimkulova ◽

Zulkhair A. Mansurov

Keyword(s):

Mesoporous Materials ◽

Structure Determination ◽

Carbon Nanomaterials ◽

Raw Materials ◽

Agricultural Products ◽

Chemical Characteristics ◽

Physico Chemical ◽

Vegetable Raw Materials ◽

Waste Agricultural Products

This article presents the results of the synthesis of carbon nanomaterials: Nanoscale materials obtained by carbonization of waste agricultural products (apricot kernel, walnut, rice husk). The results of physico-chemical characteristics of the obtained nanomaterials.

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Development of Zoning Method for Man-Made Massifs

Горная промышленность ◽

10.30686/1609-9192-2021-3-116-122 ◽

2021 ◽

pp. 116-122

Author(s):

I.A. Melnichenko ◽

Yu.V. Kirichenko

Keyword(s):

Raw Materials ◽

Mining Industry ◽

Environmental Safety ◽

Economic Feasibility ◽

Mineral Raw Materials ◽

Mine Dumps ◽

Useful Components ◽

Processing Plants ◽

The Republic ◽

Overburden Dumps

Contemporary mining industry is a complex system that is constantly expanding both in terms of explored sources of mineral raw materials and in terms of developing new approaches to mining and processing of minerals. Such a buildup in the scope of tasks set for the industry, as well as the technical progress, lead to various issues related to the quality, quantity and rational use of mineral raw materials. Rationalization, in its turn, should be carried out in a phased manner through the use of comprehensive measures, one of which is reclamation of man-made wastes, represented by waste rocks, tailings, slags, dust, etc. In addition, this approach simultaneously resolves several other important challenges the industry is facing, e.g. increasing the environmental safety of mining regions and increasing the economic feasibility of production by extracting additional components from waste materials. The scope of application of such a solution to the challenge of rationalizing production is immense and can be implemented at many deposits located in the territory of the CIS due to the presence of huge volumes of waste generated by mining raw materials. These wastes were accumulated because of the absence of full-fledged technologies to extract useful components from the rock mass in the past as well as other requirements to ore conditioning than those acting today. For example, in the Republic of Bashkortostan, the overburden dumps and off-balance ores that have been created by mining enterprises amount to more than 1 billion tons, hydraulic-mine dumps of processing plants reach 50 million tons, manmade waters exceed 9 million m3 annually. At the same time, the amount of useful components contained in these man-made deposits can be up to 1.5 million tons for copper, 2 million tons for zinc, about 100 tons of gold as well as significant amounts of other associated components, including various non-metallic formations.

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Studies of amorphous-siliceous rocks of the Republic of Kazakhstan as mineral raw materials in the formation of the porous structure of heat-insulating foam glass

NOVYE OGNEUPORY (NEW REFRACTORIES) ◽

10.17073/1683-4518-2020-2-5-9 ◽

2020 ◽

pp. 5-9

Author(s):

B. E. Zhakipbaev ◽

A. S. Kolesnikov ◽

G. S. Kenzhibaeva ◽

N. E. Botabaev ◽

A. N. Kutzhanova ◽

...

Keyword(s):

Glass Powder ◽

Raw Materials ◽

Foam Glass ◽

Insulation Material ◽

Foam Material ◽

Mineral Raw Materials ◽

Blowing Agent ◽

Siliceous Rocks ◽

Multicomponent Glass ◽

The Republic

Foam glass is known mainly as a cellular thermal insulation material obtained by sintering a mixture of glass powder and a blowing agent followed by annealing of the foam material. This article explores the possibility of producing heat-insulating foam glass directly from widely available amorphous-siliceous natural flasks, eliminating economically disadvantageous and energy-intensive processes of cooking and granulation of special multicomponent glass melt from the scheme of traditional technology.

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Selected Water Physico-Chemical Characteristics of Iloilo Batiano River, Philippines: A Baseline Study

International Journal of Environmental Science and Development ◽

10.18178/ijesd.2021.12.9.1349 ◽

2021 ◽

Vol 12 (9) ◽

pp. 261-266

Author(s):

Bartimeues Nathan Wiederhold ◽

◽

Tom Lichtenberg ◽

Roderick R. Germo ◽

Brian Gil S. Sarinas

Keyword(s):

Aquatic Organisms ◽

Calcium Content ◽

The Philippines ◽

Initial Assessment ◽

Chemical Characteristics ◽

Ph Values ◽

Physico Chemical ◽

High Calcium ◽

Significant Difference ◽

The Republic

Protecting our natural resources is one of the important thrusts of every organization. In this study, the waters of Iloilo Batiano River, Philippines is explored. This study was conducted because there is a dearth of information on the water physico-chemical characteristics of the river. Since this is an initial assessment, this study will serve as a baseline data and the results will serve as a basis for future reference for conservation measures of the river. The present study aimed to determine the selected water physico-chemical characteristics of the river such as the electrical conductivity (EC), temperature, pH, and calcium content; assess if these parameters exceed the limit set by the DENR Administrative Order No. 20F16-08 of the Republic of the Philippines and other available literatures; and to determine if there was no significant difference in the water physico-chemical characteristics among the six sampling stations. Results revealed that EC and calcium content of the river exceed their limits except for temperature and pH levels. Furthermore, EC and temperature were statistically different among the six sampling stations except for pH values. This study concludes that the river is saline due to the mixing of saltwater and surface water as the river is near to the sea and has high calcium content that can threaten the life of freshwater aquatic organisms.

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Investigation of the Physical and Chemical Characteristics of the Zeolites of the Kholinsky Deposit

Drug development & registration ◽

10.33380/2305-2066-2021-10-4-65-71 ◽

2021 ◽

Vol 10 (4) ◽

pp. 65-71

Author(s):

A. V. Bondarev ◽

E. T. Zhilyakova ◽

N. B. Demina ◽

K. K. Razmakhnin

Keyword(s):

Specific Surface ◽

Surface Area ◽

Raw Materials ◽

Molecular Model ◽

Three Dimensional ◽

Chemical Characteristics ◽

Structural Level ◽

Mineral Raw Materials ◽

Physical And Chemical ◽

Sorption Characteristics

Introduction. The mineral resource base of Russia has effective sorption substances that meet pharmaceutical requirements. Promising mineral raw materials are Zeolites, which combine the properties of an adsorbent and a "molecular sieve" due to the porous structure. In addition to the enterosorption direction, natural Zeolites are a source of macro-and microelements, which determines their use as biologically active food additives.Aim. Study of the physical and chemical characteristics of the Zeolites of the Kholinsky deposit.Materials and methods. The zeolite mineral raw materials of the Kholinsky deposit were used as objects of research. Optical microscopy was performed using a Leica DM direct microscope (Microsystems, Germany). Energy dispersion analysis was performed using an electron scanning microscope JSM-5300 (Jeol Ltd, Japan). The sorption characteristics were studied using the ASAP 2400 device (Micromeritics, USA) according to the method. The construction of a virtual three-dimensional molecular model of the Zeolite was carried out using the program Java Applet Jmol.Results and discussion. The physicochemical properties of Zeolites are investigated. It is established that morphologically the particles of the zeolite phase have a size of 5-30 microns, they are evenly distributed over the entire area of the site and represent the first structural level. Particles of the zeolite phase with a size of 5-6 microns form the second structural level due to Clinoptilolite crystals, microcracks and microgeodes. Based on the energy-dispersion spectral analysis, an increased content of the elements K, Na was revealed, which indicates the alkaline composition of the cation exchange complex. The studied Zeolite samples have micropores (volume 0.0031 cm3/g), mesopores (volume 0.0675 cm3/g), and a specific surface area of 29.1840 m2/g. A virtual three-dimensional molecular model of the Zeolite of the Kholinsky deposit has been developed. According to the molecular model, the sorption characteristics of the Kholinsky deposit Zeolite were: specific surface area - 1096.31 m2/g (1916.34 m2/cm3), the average diameter of the spherical molecule for adsorption in the pores is 5.97 A.Conclusion. The analysis of the sorption characteristics of the Zeolite revealed the following features: the pores occupy half the volume of the entire Zeolite, which are available for the sorption of water and low-molecular substances. Each pore in three mutually perpendicular directions communicates with the neighboring ones through "windows". A system of intracrystalline pores and cavities is formed, in which the occlusion and adsorption of molecules of the appropriate size easily occurs.

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The effects of activation temperature on physico-chemical characteristics of activated carbons derived from biomass wastes

10.1063/1.4938370 ◽

2015 ◽

Cited By ~ 1

Author(s):

Bachrun Sutrisno ◽

Arif Hidayat

Keyword(s):

Activated Carbons ◽

Chemical Characteristics ◽

Activation Temperature ◽

Physico Chemical

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Macroeconomics of mining of the Far Eastern Federal District

E3S Web of Conferences ◽

10.1051/e3sconf/202019203020 ◽

2020 ◽

Vol 192 ◽

pp. 03020

Author(s):

Gennady Arkhipov

Keyword(s):

Raw Materials ◽

Practical Importance ◽

Mining Industry ◽

Value Added ◽

Federal District ◽

Mineral Raw Materials ◽

Macroeconomic Indicators ◽

The Republic ◽

Regional Product ◽

Far Eastern

The analysis of macroeconomic indicators of the results of solid mineral extraction (TPI) in 11 subjects of the Far Eastern Federal district (DFO) was performed. The total value of production of all types of minerals (DPI) in terms of money at DFO is about 2.4 trillion rubles (45% of total gross regional product (GRP) of the region is equal to 5 trillion rubles.). More than 63% of the volume of DPI is achieved at the expense of fuel and energy resources of the Sakhalin region and the Republic of Sakha (Yakutia). In the dynamics of the region, there is a significant increase in GRP, production and value added for the DPI in general, and the production of fuel and energy minerals, but slower growth in the production of solid minerals. Ore (metal) raw materials of the region’s subjects in its total GRP is about 21%, in value terms-500 billion rubles. The region produces 16-18 types of ore mineral raw materials, including 12 types of raw materials as the main components of production, 4-5 types-as associated components. The main one is gold production (in 2019 more than 170 tons), silver (more than 930 tons). In the Far Eastern Federal district, reserves and resources of the main TPI for the long term have been identified. It is possible to significantly support the mining industry of the region in the case of exploration of new deposits with high-quality ores. Ore mineral raw materials of the leading geological and industrial types are currently insufficiently studied. It is necessary to develop intra-regional use and processing of raw materials to final products, create metallurgical industries, this will give new incentives to the development of the region’s resources. The analysis is of practical importance for evaluating and selecting directions in the deposits of subsurface use.

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SEMI-INDUSTRIAL TECHNOLOGY FOR SYNTHESIS OF TETRACYANOETHYLENE

IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA ◽

10.6060/ivkkt.20206306.6187 ◽

2020 ◽

Vol 63 (6) ◽

pp. 72-79

Author(s):

Konstantin V. Lipin ◽

Sergey V. Fedoseev

Keyword(s):

Carbon Disulfide ◽

Raw Materials ◽

Synthesis Method ◽

Sodium Cyanide ◽

Reaction Mass ◽

Technological Scheme ◽

Chemical Characteristics ◽

Auxiliary Equipment ◽

Physico Chemical ◽

Selection Of

The goal of our work is to develop a synthesis of tetracyanoethylene suitable for scaling and to design a technological scheme of the process based on it. To achieve this goal, a tetracyanoethylene synthesis method was originally developed, which consists of the following stages: obtaining sodium cyanodithioformate based on carbon disulfide and sodium cyanide using N, N-dimethylformamide as a solvent; obtaining tetracyano-1,4-dithiine by treating sodium cyanodithioformate with chlorine; obtaining tetracyanoethylene from tetracyano-1,4-dithiine by sequential interaction with sodium cyanide and chlorine. The developed method was tested in the laboratory, where it showed its suitability. Therefore, further on the base of this method, a technological scheme of the process was designed. A description of the scheme and the necessary sequence of operations are compiled. The interaction takes place in the reactors R-1, R-2, R-3. Pumps N-1–4 provided the pumping the reaction mass. Also, in the technological scheme there is an F-1 Nutsche filter for separation of the suspension. To isolate and purify the obtained tetracyanoethylene, an I-1 vacuum evaporator and a SA-1 sublimation apparatus are used. The necessary equipment was selected for the technological scheme: Р-1 reactor made of Teflon with a volume of 200 l with a stirrer and a jacket; two reactors Р-2 and Р-3 made of glass with a volume of 200 l with a stirrer and a jacket; Ф-1 Nutsche filter made of thick-walled polypropylene pipes; sublimation apparatus CA-1 continuous. The selection of the main and auxiliary equipment was carried out on the base of the chemical and physico-chemical characteristics of the reagents, technological conditions and the characteristics of the process. This method of obtaining compares favorably with the use of simple and cheap raw materials common in the chemical industry and the use of standard processing equipment.

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