scholarly journals INVESTIGATION OF THE APPLICATION OF A NEW METHOD OF EXTRACTION INTENSIFICATION OF PECTIN SUBSTANCES FROM A BEET PULP

2018 ◽  
Vol 4 ◽  
pp. 21-28
Author(s):  
Gregoriy Deynichenko ◽  
Vasyl Guzenko ◽  
Dmytro Dmytrevskyi ◽  
Vitalii Chervonyi ◽  
Tatiana Kolisnichenko ◽  
...  
Keyword(s):  
Raw Materials ◽  
Experimental Studies ◽  
Extraction Process ◽  
New Method ◽  
Acid Extraction ◽  
Regression Equations ◽  
Technological Parameters ◽  
Beet Pulp ◽  
Working Parameters ◽  
Pectin Substances

The aim of research is studying a new method for intensifying extraction of pectin substances during acid extraction of pectin-containing raw materials. The description of the experimental setup and the procedure for processing the results of the investigation of the application of a new method for intensifying the beet pulp extraction are described. The results of experimental studies on the application of a new combined mixing element for intensifying the extraction of pectin-containing raw materials (beet pulp) and its effect on quantitative and qualitative output characteristics are presented. Mathematical models are constructed on the basis of regression equations of the full factorial experiment with the use of a new method of intensifying the extraction process to select input technological parameters for the extraction of pectin substances from pectin-containing raw materials. The rational operating parameters of the process of extraction of pectin substances with the use of a new combinable stirring element are determined. Such working parameters are: the process duration is 1 ... 1.1, the temperature of the working medium is 60 ... 70 ºС, and the hydromodule is 8 ... 10. The research results can be used to study other technological parameters of the extraction process of pectin substances, as well as to develop a technological line for the production of pectin products.

A possibility of using nickel concentrate, obtained as a result of hydrometallurgical enrichment of manganese-containing raw materials, at steel alloying

2020 ◽  
Vol 76 (7) ◽  
pp. 709-715
Author(s):  
O. Yu. Kichigina
Keyword(s):  
Raw Materials ◽  
Experimental Studies ◽  
Selective Extraction ◽  
Technological Parameters ◽  
Nickel Iron ◽  
Nickel Recovery ◽  
Nickel Concentrate ◽  
Steel Alloying ◽  
High Degree ◽  
Comprehensive Processing

At production of stainless steel expensive alloying elements, containing nickel, are used. To decrease the steel cost, substitution of nickel during steel alloying process by its oxides is an actual task. Results of analysis of thermodynamic and experimental studies of nickel reducing from its oxide presented, as well as methods of nickel oxide obtaining at manganese bearing complex raw materials enrichment and practice of its application during steel alloying. Technology of comprehensive processing of complex manganese-containing raw materials considered, including leaching and selective extraction out of the solution valuable components: manganese, nickel, iron, cobalt and copper. Based on theoretical and experiment studies, a possibility of substitution of metal nickel by concentrates, obtained as a result of hydrometallurgical enrichment, was confirmed. Optimal technological parameters, ensuring high degree of nickel recovery out of the initial raw materials were determined. It was established, that for direct steel alloying it is reasonable to add into the charge pellets, consisting of nickel concentrate and coke fines, that enables to reach the through nickel recovery at a level of 90%. The proposed method of alloying steel by nickel gives a possibility to decrease considerably steel cost at the expense of application of nickel concentrate, obtained out of tails of hydrometallurgical enrichment of manganese-bearing raw materials, which is much cheaper comparing with the metal nickel.

scholarly journals STUDY OF THE INFLUENCE OF TECHNOLOGICAL PARAMETERS ON THE GRANULOMETRIC CHARACTERISTICS OF SUBMICRON ALUMINUM OXIDE IN α-FORM

2021 ◽  
Vol 6 (12) ◽  
pp. 84-97
Author(s):  
M. Troubitsin ◽  
N. Volovicheva ◽  
L. Furda ◽  
N. Skrypnikov
Keyword(s):  
Fine Particles ◽  
Raw Materials ◽  
Experimental Studies ◽  
High Yield ◽  
Cylindrical Shape ◽  
Grinding Process ◽  
Activated Alumina ◽  
Technological Parameters ◽  
Granulometric Characteristics ◽  
Kinetics Of

Experimental studies of the influence of technological parameters of grinding alumina raw materials in a ball mill on the kinetics of the grinding process and the granulometric characteristics of activated alumina in the α-form have been carried out. It is found that the use of spherical grinding bodies leads to the formation of a specific four-modal granulometric composition with maxima: 0.5; 4.0; 50.0 and 400.0 microns, respectively. The disadvantage of using spherical grinding bodies is the uneven distribution of the introduced intensifier additive (PEG), which in turn causes adhesion of fine particles and the appearance of aggregates. This is especially pronounced at n = 100 rpm. When using grinding bodies of cylindrical shape, on the contrary, there is a tendency towards a bimodal nature of the distribution of particles with maxima in the regions of 0.4 and 4 μm, respectively, regardless of the rotation speed of the drum (n). The use of cylpebs does not provoke agglomeration of the fine particle fraction, which is observed in the case of spherical grinding bodies. When analyzing the kinetics of grinding alumina raw materials, two main stages of the process are identified. The first stage corresponds to the active fragmentation of large initial aggregates into constituent crystallites by the cleavage mechanism. The second stage corresponds to a change in the grinding mechanism from crushing to abrasion. It is found that carrying out the grinding process for 10 hours using cylindrical grinding bodies at n = 100 rpm and φ = 0.35 provides a high yield of the submicron fraction of the target product (1 μm) - up to 20 wt. %.

scholarly journals THE STUDY OF THE METHOD OF FIGHT AGAINST FORMATION OF POLARIZING LAYER AT THE PROCESS OF ULTRAFILTRATION CONCENTRATION OF THE SKIM MILK

2016 ◽  
Vol 5 ◽  
pp. 53-60
Author(s):  
Grygoriy Deynychenko ◽  
Vasyl Guzenko ◽  
Oleg Udovenko ◽  
Aleksandr Omelchenko ◽  
Olga Melnik
Keyword(s):  
Mathematical Models ◽  
Membrane Surface ◽  
Experimental Studies ◽  
Skim Milk ◽  
Factorial Experiment ◽  
Raw Material ◽  
Technological Parameters ◽  
Membrane Processing ◽  
Working Parameters ◽  
Selection Of

The description of experimental set and the method of processing of the results of the study of the method of fight against formation of polarizing layer in the process of ultrafiltration concentration of skim milk raw material were presented. The results of experimental studies relative to the sparging method application for the prevention of polarizing layer in the process of membrane processing of the skim milk and its influence on the capacity of ultrafiltration membranes were offered. The mathematical models were constructed on the base of regressive equations of factorial experiment using the method of the raw material sparging above the membrane surface for selection of technological parameters of the process of ultrafiltration concentration of the skim milk. The rational working parameters of the process of ultrafiltration concentration of the skim milk using the sparging of the skim milk by the gas bubbles in the direct closeness to the membrane surface were determined. Such working parameters are: pressure– 0,4...0,5 MPa, temperature of skim milk– 40...50 ºС, frequency of sparging of skim milk– 0,10...0,15 min-1, pressure of sparging must be 0,56...0,58 MPa.

scholarly journals RESEARCH OF THE POSSIBILITY OF INCREASING THE QUALITY OF PREPARATION OF DRY MIXTURES IN A HORIZONTAL VANE MIXER

2021 ◽  
Vol 6 (10) ◽  
pp. 99-108
Author(s):  
S. Khanin ◽  
N. Kikin ◽  
O. Mordovskaya
Keyword(s):  
Compressive Strength ◽  
Building Materials ◽  
Experimental Studies ◽  
Ultimate Compressive Strength ◽  
Regression Equations ◽  
Technological Parameters ◽  
Sand Mixture ◽  
Paddle Mixer ◽  
Mixed Material

Paddle mixers with horizontal shafts are common at building materials enterprises for the preparation of concretes, mortars, dry mortars. A new design of a horizontal paddle mixer with rod elements located in front of the working surfaces of the blades, changing the trajectories of material particles, increasing their mobility, which leads to an increase in the degree of homogeneity of the mixed material, is considered. The aim of the study was to assess the influence of rod elements on the quality of preparation of a cement-sand mixture, to establish patterns of influence on it by the design and technological parameters of a two-shaft paddle mixer and to determine the areas of their rational values. The following tasks have been solved. A bench installation of a two-shaft horizontal paddle mixer with rod elements has been developed, on which experimental studies have been carried out on the preparation of dry cement-sand mixtures. For the criterion characterizing the quality of the mixture, the ultimate compressive strength of the prism specimens made from it is adopted. Regression equations are obtained that adequately describe the compressive strength of prism samples from the design and technological parameters of the mixer: the angle of the blades, the distance from the working surfaces of the blades to the rod elements, the rotational speed of the blade shafts, and their analysis is performed. The analysis of the change in the ultimate compressive strength of the prism specimens from the parameters under study is carried out, the rational ranges of their values are determined. It was found that a mixer with rod elements allows to obtain a dry cement-sand mixture, products from which have a higher compressive strength. During the work, the method of mathematical planning of experiments was used. As a result of the study, an assessment of the influence of rod elements on the quality of preparation of a cement-sand mixture was carried out, the regularities of the influence on it of the design and technological parameters of a two-shaft paddle mixer and the area of their rational values were established.

scholarly journals Problems of seasonality of sugar production from beets

2020 ◽  
Vol 82 (1) ◽  
pp. 64-69 ◽  
Author(s):  
V. A. Golybin ◽  
V. A. Fedoruk ◽  
N. A. Matvienko
Keyword(s):  
Diffusion Process ◽  
Raw Materials ◽  
Sugar Content ◽  
Extraction Process ◽  
Feed Water ◽  
Negative Consequences ◽  
Root Crops ◽  
Initial Stage ◽  
Beet Pulp ◽  
Physical And Chemical

In recent years, the annual processing of sugar beet in Russia is 45 million tons or more, which allows to produce white sugar in the amount of 6.0 million tons or more. during the production season, the quality of beets does not remain constant – not only its sugar content changes, but also the content of harmful soluble non-sugars, as well as physical and chemical parameters - the mass of root crops decreases due to wilting, reducing turgor, respiration and germination, rotten mass appears as a result of microbiological and enzymatic processes and the formation of foci of mucous bacteriosis. One of the main tasks of improving the diffusion process is to increase the elasticity of beet tissue and reduce the intensity of the transition of pectin substances into the diffusion juice. This goal is achieved by using effective chemical reagents in the composition of the feed water introduced into the diffusion apparatus, as well as processing of beet chips immediately before the sucrose extraction process; reducing the temperature of desugarisation of beet pulp in the diffusion apparatus in the allowable interval. The method of intensification of sucrose extraction using the method of treatment of feed water in an electric field is proposed. Improvement of the dispersed composition of the resulting sediment particles is facilitated by the return to the preliming of the carbonate suspension of juice II saturation, carried out using an activated suspension of filter perlite. The homogeneity of calcium carbonate particles and correspondingly high filtration rates of saturation juice are formed due to the active circuit of the internal circulation of the juice. The use of the proposed recommendations during the implementation of technological processes in their implementation in modern equipment of the diffusion process and purification of the obtained juice allow to minimize the negative consequences of beet processing both at the initial stage of the production season when technically not ripe root crops are received, and during the end of the season when processing raw materials of reduced quality.

scholarly journals Technological value of raw materials from sugar beet growing area fertilized with digestate from sugar beet pulp biogas plant

2017 ◽  
Vol 63 (No. 5) ◽  
pp. 207-212 ◽  
Author(s):  
Baryga Andrzej ◽  
Połeć Bożenna ◽  
Małczak Ewelina
Keyword(s):  
Sugar Beet ◽  
Raw Materials ◽  
Sugar Beet Pulp ◽  
Raw Material ◽  
Mineral Fertilizers ◽  
Technological Parameters ◽  
Technological Value ◽  
Beet Pulp ◽  
Agricultural Use ◽  
Experimental Plots

The purpose of the work was to study the suitability of residue obtained during the methane fermentation process of sugar beet pulp for agricultural use in sugar beet plantations. Studies were performed with the sugar beet pulp fermentation residue and sugar beets (Beta vulgaris cv. Fighter) harvested from experimental plots. It was found that the by-product of sugar beet pulp digestion may be utilized in agriculture taking into account its chemical and microbiological standards. The nutrients in digestion residue were as assimilable for sugar beet plants as the nutrients in mineral fertilizers. The evaluation of technological parameters of sugar beet harvested from experimental plots based on standard technological criteria showed that irrespective of fertilization treatment, the raw material obtained met most of the requirements and can be used as a stock material for sugar production.

scholarly journals DEVELOPMENT AND JUSTIFICATION OF PARAMETERS OF THE CENTRIFUGAL INSTALLATION FOR THERMAL PROCESSING OF BOILER WASTES

2017 ◽  
Vol 12 (2) ◽  
pp. 81-87
Author(s):  
Георгий Жданкин ◽  
Georgiy Zhdankin ◽  
Владимир Сторчевой ◽  
Vladimir Storchevoy ◽  
Галина Новикова ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Thermal Processing ◽  
Raw Materials ◽  
Liquid Fraction ◽  
Operating Conditions ◽  
Animal Origin ◽  
Regression Equations ◽  
Technological Parameters ◽  
Criterial Equations ◽  
Protein Feed

On the basis of the criterial equations, regression equations are obtained, that allow to evaluate the influence of technological parameters, electrophysical and physico-mechanical properties of non-food raw materials on the duration of heat treatment and disinfection of protein feed and to determine the rational operating conditions of a multimodular centrifugal microwave plant for heat treatment of non-food wastes of animal origin and separation of the liquid fraction.

scholarly journals Analysis of the influence of technological parameters of the chlorogenic acid extraction process from sunflower meal on the degree of its extraction

2020 ◽  
Vol 1 (3(51)) ◽  
pp. 38-43
Author(s):  
Marina Labeiko ◽  
Fedir Gladkiy ◽  
Sergiy Bochkarev ◽  
Viktoria Mazaeva ◽  
Olena Litvinenko ◽  
...  
Keyword(s):  
Chlorogenic Acid ◽  
Extraction Process ◽  
Acid Extraction ◽  
Sunflower Meal ◽  
Technological Parameters

scholarly journals RESEARCH METHOD OF REDUCING POLARIZATION LAYER AT ULTRAFILTRATION OF COTTAGE CHEESE WHEY

2020 ◽  
Vol 4 ◽  
pp. 8-14
Author(s):  
Gregoriy Deynichenko ◽  
Vasyl Guzenko ◽  
Dmytro Dmytrevskyi ◽  
Vitalii Chervonyi ◽  
Aleksandr Omelchenko ◽  
...  
Keyword(s):  
Cheese Whey ◽  
Raw Materials ◽  
Membrane Surface ◽  
Experimental Studies ◽  
Cottage Cheese ◽  
Regression Equations ◽  
Layer Formation ◽  
Research Results ◽  
Skimmed Milk ◽  
Membrane Concentration

The aim of the work is to study the process of membrane concentration of cottage cheese whey, using the bubbling method for decreasing polarization layer formation at the UF-membrane surface. A description of the experimental set and processing method for research results of using the method of fighting against a polarization layer in the process of membrane concentration of protein-carbohydrate milk raw materials are presented. Results of the experimental studies as to using the bubbling method for decreasing polarization layer formation in the process of membrane concentration of cottage cheese whey and its influence on concentration membranes productivity are given. Mathematical models, based on regression equations of factorial experiment with using the method of bubbling separated liquid above the membrane surface for choosing technological parameters of process of membrane concentration of cottage cheese whey, have been constructed. Graphic dependencies of the productivity of ultrafiltration polymer membranes of PAN type depending on initial pressure and temperature parameters of the process of membrane concentration are presented. Rational parameters of membrane concentration of cottage cheese whey using the method of bubbling initial raw materials by gas bubbles, directly close to the concentration membrane surface have been determined. Such parameters are: pressure – 0.4...0.5 МPа, temperature of skimmed milk – 40...50 ºС, skimmed milk bubbling frequency – 0.10...0.15 min-1, bubbling pressure must be 0.56...0.58 МPа. The expedience of using the new-method of gel-layer elimination has been established according to research results

scholarly journals IMPROVEMENT OF THE TECHNO¬LOGY FOR OBTAINING MANGANESE(IV) OXIDE FROM SECONDARY RAW MATERIALS

2021 ◽  
Vol 2 (37) ◽  
pp. 109-113
Author(s):  
D. Yelatontsev ◽  
O. Kharitonova
Keyword(s):  
Raw Materials ◽  
Manganese Content ◽  
Experimental Studies ◽  
Acid Leaching ◽  
Raw Material ◽  
Technological Scheme ◽  
Mineral Fertilizers ◽  
Technological Parameters ◽  
Long Run ◽  
Pure Compounds

Today's level of integrated use of minerals and beneficiation wastes in Ukraine, in particular, at the Kryvbas GOK, is unsatisfactory, as it is generally allowing the production of additional types of construction products. The volume of mining is growing, but only a small percentage of the extracted volume is transferred to the finished product. The residue in the form of waste is returned to the environment, polluting it. The reason for this is the lack of technology for integrated mineral processing and waste disposal. The article presents the results of industrial tests of off-balance manganese ore processing technology of Ordzhonikidze GOK with a manganese content of 15–30%. It is shown that nitric acid leaching of manganese with subsequent precipitation of impurities with soda or alkali allows you to consistently purify manganese from transition and alkaline earth metals. The obtained manganese oxide has a high degree of purity, which allows obtaining pure compounds Mn (NO3)2∙6H2O, MnO2 and metallic manganese for chemical current sources. The use of columnar clarifiers with a fluidized bed with the application of pulsations allowed to eliminate time-consuming filtration processes. Concomitantly formed sodium nitrate serves as a raw material for mineral fertilizers. Experimental studies on the beneficiation of off-balance manganese ores allowed us to determine the main technological parameters of the extraction of components and to develop a technological scheme of beneficiation. According to the proposed technological scheme, it is possible to obtain high-quality concentrates of manganese (IV) oxide. The use of optimal technological parameters of enrichment allows up to 95% of Mn to be extracted from off-balance manganese raw materials. In the long run, this will reduce dependence on imports of manganese raw materials and significantly reduce the cost of domestic manganese products.

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