scholarly journals Specific utilization methods of high-melting wastes from the enterprises of chemistry and non-ferrous metallurgy

2018 ◽  
Vol 196 ◽  
pp. 04010
Author(s):  
Aleksey Khlystov ◽  
Vladimir Shirokov ◽  
Elena Vlasova
Keyword(s):  
Ferrous Metallurgy ◽  
Industrial Waste ◽  
Raw Materials ◽  
Industrial Wastes ◽  
Raw Material ◽  
Phosphate Binders ◽  
Material Base ◽  
High Melting ◽  
Heat Resistant ◽  
Technogenic Wastes

The article provides information on industrial waste generation at enterprises of the Samara region, suitable for use as raw materials components of such heat-resistant composites as solutions, concretes, gun mixes, coatings. The research indicates rational ways of some heat-resistant binders application for utilization of mineral high-melting and heat-resistant industrial wastes. It proves that the enrichment of certain types of industrial waste, i.e. bringing the chemical composition of their components to the required state, allowed to expand the raw material base for the synthesis of heat-resistant binders and concrete in general. The use of sludge waste in the processes of synthesizing liquid phosphate binders allowed to obtain such effective binders as aluminophosphates and aluminocalciumphosphates. The research proves that application of technogenic wastes of non-ferrous metallurgy enterprises allows to receive heat-resistant materials solutions, concretes, coatings, gun mixes which characteristics are similar to their industrial analogues.

USE OF ALUMINUM-CONTAINING NANOTECHNOGENIC RAW MATERIALS AND CARBON WASTE IN THE PRODUCTION OF HEAT-RESISTANT CONCRETE

2021 ◽  
Vol 93 (1) ◽  
pp. 96-105
Author(s):  
B.Z. ABDRAKHIMOV ◽  
◽  
E.S. ABDRAKHIMOVA ◽  
Keyword(s):  
Chemical Industry ◽  
Building Materials ◽  
Raw Materials ◽  
Experimental Studies ◽  
Industrial Wastes ◽  
Raw Material ◽  
Phosphate Binders ◽  
Radius Of Curvature ◽  
Material Base ◽  
Heat Resistant

In this work, using waste from the chemical industry — aluminum-containing nanotechnogenic raw materials and a fuel and energy complex — coal enrichment based on phosphate binders, heat-resistant concrete with high physical and mechanical properties is obtained. Thanks to the use of orthophosphoric acid as a binder, it was possible to utilize 80-90% of chemical industry waste and coal preparation, which helps to reduce the anthropogenic load on the environment and humans. Studies show that as the grain size decreases, the total size of the interface is increased, the average radius of curvature of the convex sections decreases, their excess surface energy grows, and the distances between the sources and absorbers of vacancies in the system decrease. Experimental studies and rich practical experience in ceramic industries confirm the crucial role of the degree of grinding (or the use of nanoscale raw materials). Due to the action of this factor alone, it is possible in some cases to reduce the required sintering temperature by 50-100 °C or more. The use of industrial wastes in the production of building materials contributes to: a) the utilization of industrial wastes; b) environmental protection; b) the expansion of the raw material base for heat-resistant concrete based on phosphate binders.

Ecological and technological aspects of the use of wastes of combustible shale in the production of various thermal insulation materials

2018 ◽  
Vol 22 (5) ◽  
pp. 24-29
Author(s):  
V.Z. Abdrakhimov
Keyword(s):  
Industrial Waste ◽  
Building Materials ◽  
Raw Materials ◽  
Current System ◽  
Industrial Wastes ◽  
Raw Material ◽  
Green Economy ◽  
Material Base ◽  
Insulating Materials ◽  
Waste Production

It is shown that at present the current system of environmental regulation in Russia is divorced from the real context in which to exist. One of the most promising areas for the use of waste production is ─ involving them recycled as secondary material or energy resources. On the basis of waste oil shale obtained heat-insulating materials with high physical-mechanical indicators. Due to the involvement of industrial waste in manufacturing of heat-insulating materials may dramatically change the parameters of the raw material base of Russia, which also contributes to reducing environmental impact in the regions. The use of waste fuel and energy complex: inter-shale clay and slate slag in the production of insulating materials contributes to recycling of industrial waste, the protection of the environment and expansion of raw materials base for production of ceramic building materials. The compositions of the developed compositions, proposed to obtain a lightweight brick and a porous filler, the authors of this article obtained three patents of the Russian Federation. Utilization of industrial wastes contributes to the development of "green" economy.

scholarly journals Physical and Chemical Fundamentals and Technical Solutions for Recovery of Non-ferrous and Rare Metals from Industrial Wastes

2020 ◽  
Author(s):  
P.A. Kozlov ◽  
A.M. Panshin ◽  
L.I. Leontiev
Keyword(s):  
Russian Federation ◽  
Raw Materials ◽  
Block Diagram ◽  
Industrial Wastes ◽  
Raw Material ◽  
Material Base ◽  
Waelz Process ◽  
Zinc Cadmium ◽  
The Russian Federation ◽  
Increasing Demand

The increasing demand for zinc and a range of zinc-related metals (for example: lead; indium; tin; cadmium; and copper) in the Russian Federation cannot be satisfied by the existing production plants due to the lack of raw materials. At the same time, ferrous and non-ferrous metallurgy and the chemical industry have accumulated hundreds of millions of tons of zinc wastes (falling into the hazard categories 2 to 4), the processing of which could not only make up the raw material base, but also improve the environmental situation. In the world, over 85% of ferrous dust is recycled using the Waelz process. The Waeltz process is used for distilling separation of elements under reducing conditions. In this study, a block diagram for production of the following elements from industrial wastes is proposed: zinc, cadmium and indium in form of massive metals; zinc and indium in the form of fine powders; and clinker as a raw material for cement production. The technical and scientific details of this new process have been patented in the Russian Federation and abroad. For the first time, the following operations have been implemented with the use of large-sized Waelz kilns: vapour-oxidized Waeltz treatment of polymetallic wastes; recycling of heat from gases and solid products with generation of process fumes; and implementation of alternative flux (dolomite) and alternative fuel (petroleum coke). Keywords: Waelz process, industrial wastes, heat recycling, vapour-oxidized Waelz processing

The Use in the Production of Clinker Waste of Non-Ferrous Metallurgy and Power Engineering of East Kazakhstan

2020 ◽  
Vol 24 (3) ◽  
pp. 14-18 ◽  
Author(s):  
V.Z. Abdrakhimov ◽  
A.K. Kairakbaev ◽  
E.S. Abdrakhimova
Keyword(s):  
Environmental Protection ◽  
Ferrous Metallurgy ◽  
Industrial Waste ◽  
Building Materials ◽  
Light Fraction ◽  
Power Engineering ◽  
Raw Material ◽  
Material Base ◽  
East Kazakhstan ◽  
Ceramic Building

The technology of obtaining clinker bricks on the basis of waste of non-ferrous metallurgy – clay part of the "tails" of the gravity of zircon-ilmenite ores and waste of energy – ash of light fraction is considered. The use of non-ferrous metallurgy and energy waste in ceramics contributes to the disposal of industrial waste, environmental protection and the expansion of the raw material base for ceramic building materials.

scholarly journals Circular Economy Strategies: Use of Corn Waste to Develop Biomaterials

2021 ◽  
Vol 13 (15) ◽  
pp. 8356
Author(s):  
Hernán Darío Castaño Castrillón ◽  
Carlos Mario Gutiérrez Aguilar ◽  
Beatriz Elena Angel Álvarez
Keyword(s):  
Circular Economy ◽  
Fast Food ◽  
Industrial Waste ◽  
Food Packaging ◽  
Raw Materials ◽  
Raw Material ◽  
Practical Case ◽  
Material Base ◽  
Environmental Component ◽  
Efficient Manufacturing

The circular economy is a process through which elements that have already been used are reincorporated and given a second use so that they can reduce the consumption of virgin raw materials. This article shows how, from the reuse of an agro-industrial waste such as corn husks, a biomaterial can be developed that manages to standardize the properties of materials such as paper and cardboard, thus allowing the development of single-use products that replace the excessive expense of materials such as polymers. In this article, it will be possible to show how from the process of transforming an agro-industrial waste into a raw material base, it is possible not only to reduce the number of raw materials discarded but also to redesign a product that not only contributes to the environmental component but also facilitates the processes of economic sustainability when generating products. As a practical case, a comparison is made between traditional fast-food packaging and how from these, a new packaging proposal can be generated, which starts from the principles of circular economy and complements sustainable design processes to make more efficient manufacturing of the mentioned product.

scholarly journals Construction of affordable housing using local building materials

2020 ◽  
pp. 154-165
Author(s):  
V. V. Tytok
Keyword(s):  
Affordable Housing ◽  
Industrial Waste ◽  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Climatic Conditions ◽  
Raw Material ◽  
Material Base ◽  
Long Distance ◽  
The Cost

Trends in housing development should be based on the geographical location and climatic conditions of the region, national characteristics and culture, natural resources, transport links, density and living standards. Construction significantly affects the socio-economic development of the region. In this regard, increasing the sustainability of the regional construction complex, which is based on the building materials industry and the construction industry is a relevant and promising area of research.Demand in the building materials market continues to stimulate increased interest in the development of new types of efficient and inexpensive building materials. Since construction is one of the most material-intensive sectors of the economy, which consumes a large number of construction materials and products, various measures are taken to reduce their cost.In this regard, recently in the construction seek to make greater use of local building materials. This allows you to unload transport from long-distance transportation and significantly reduces the cost of construction. However, the building materials industry cannot develop by focusing only on natural sources of raw materials, as the costs of their extraction and processing are constantly growing. The use of man-made waste provides production with a rich source of cheap and often already prepared raw materials, which reduces the cost of manufacturing building materials.One of the promising areas in the construction of affordable housing is the maximum use of building materials and products that can be obtained from local raw materials and industrial waste. As local building materials are offered: clay, sand, soil, straw, reeds, flax. The use of industrial waste solves both environmental, fuel and energy problems and expands the raw material base of building materials.

scholarly journals Structure Formation Processes and Green Ceramics Manufacturing from Hazardous Bauxite Red Mud and Ferrous Slag

2021 ◽  
Author(s):  
Vsevolod Mymrin ◽  
Kirill Alekseev ◽  
Walderson Klitzke ◽  
Monica A. Avanci ◽  
Paulo H.B. Rolim ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Structure Formation ◽  
Red Mud ◽  
Raw Materials ◽  
Ceramic Materials ◽  
Linear Shrinkage ◽  
Industrial Wastes ◽  
Raw Material ◽  
Material Base ◽  
Traditional Natural

Abstract This paper reports the development and characterization of some new ceramic materials from hazardous bauxite red mud (50 to 100 wt.%) and blast furnace slag (10 and 50%). This research aimed to demonstrate the possibility of expanding the raw material base for ceramics production, completely replacing the traditional natural raw materials (clay and sand) by hazardous industrial wastes composites with increasing local and global sustainability. Studies on the physicochemical processes of the ceramic structure’s formation were conducted by the XRF, XRD, AAS, SEM with EDS, and LAMMA methods. Changes in flexural strength, linear shrinkage, water absorption, and density were determined during the sintering process at 1000°, 1050°, 1100°, 1150°, 1200°, and 1225°C. The ceramics` flexural strength after sintering at 1225°C reached 19.78 MPa due to the syntheses of the mainly glass-like structure formation, confirmed by SEM, EDS and isotopes LAMMA methods with the complete binding of the heavy metals.

scholarly journals PREPARING SOLUTIONS BASED ON INDUSTRIAL WASTE FOR FRACTURED SURFACE STRENGTHENING

2020 ◽  
Vol 5 (443) ◽  
pp. 13-20
Author(s):  
Aitkazinova Sh.A., ◽  
◽  
Bek А.А., ◽  
Derbisov K.T., ◽  
Donenbayeva N.S., ◽  
...  
Keyword(s):  
Fractured Rocks ◽  
Industrial Waste ◽  
Building Materials ◽  
Underground Mining ◽  
Raw Materials ◽  
Raw Material ◽  
Practical Significance ◽  
Material Base ◽  
Industrial Processing ◽  
Technogenic Raw Materials

Results of longstanding researches of Satbayev University scientists on the development of modified building materials to strengthen cracked mountain structures based on industrial waste are considered. Industrial processing of technogenic raw materials (enrichment and processing waste, overburden and enclosing rocks), which is similar in composition to natural and used in conventional trend, scarcely different from industrial processing of mineral raw materials. Creation of effective technologies for the processing of technogenic raw materials is an urgent task, which make it possible to obtain competitive products from it for various industries. Various methods of preparing solutions for strengthening of fractured rocks and building structures are analyzed. Research results of tailings of the Balkhash Mining and Metallurgical Combine and preparing solutions for strengthening fractured rocks and underground mining structures are presented. Rock mass strengthening in cracked areas is achieved by adding substances into the cracks, which after hardening and solidification with rocks, increase its shearing resistance characteristics. The most widespread hardening methods were cementation during mine workings (underground structures) in fractured rocks. Significance of obtained results for construction industry is in expansion and reproduction of raw material base of building materials industry through the use of Mining and metallurgical complex waste (tailings) and development of resource-saving technologies. Practical significance of work is in the detailed development of modified method for the production of building materials and products.

scholarly journals PHOSPHATE LINKING OF MINERAL THIN-MOLTED INDUSTRIAL WASTE

2019 ◽  
Vol 9 (3) ◽  
pp. 85-91
Author(s):  
Aleksey I. KHLYSTOV ◽  
Dmitriy I. ISAEV
Keyword(s):  
Industrial Waste ◽  
Iron Phosphate ◽  
High Alumina ◽  
Phosphate Binders ◽  
High Melting ◽  
Melting Points ◽  
Critical Temperatures ◽  
Heat Resistant ◽  
Petrochemical Waste ◽  
The City

The article describes various methods of synthesizing heat-resistant binders based on large-tonnage wastes of enterprises. The use of pyrite butts and expanded clay dust, respectively, from the Chapayevsky Chemical Plant and the expanded clay plant of the city of Samara in the compositions of heat-resistant concrete on phosphate binders allowed to increase their residual strength in the zone of critical temperatures (1300-1350 °С). The refractoriness of these phosphate binders turned out to be very low (≈1300 °С), which required the use of such a method of its increase as the introduction of fine high-alumina fillers with high melting points into the composition of the binder. It was revealed and justified that the use of an alumina-chromium petrochemical waste IM-2201 allowed to increase the refractoriness of the heat-resistant composition to 1600 °С. On the basis of the developed alumina-iron-phosphate, zirconyliron- phosphate and alumino-silicophosphate binders, the compositions of heavy concrete with chamotte and high-aluminous aggregates of grades 400 and 500 were selected.

USE OF INDUSTRIAL BY-PRODUCTS AS MINERAL POWDERS IN ROAD CONSTRUCTION

2021 ◽  
Vol 2021 (24) ◽  
pp. 193-205
Author(s):  
Ivan Kopynets ◽  
◽  
Volodymyr Kaskiv ◽  
Оleksii Sokolov ◽  
◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Industrial Waste ◽  
Information Sources ◽  
Raw Materials ◽  
Road Construction ◽  
Industrial Wastes ◽  
Raw Material ◽  
Concrete Mixture ◽  
Mineral Powder ◽  
By Products

Introduction. Mineral powder is an important structural component of asphalt concrete. Mineral powder is the output material obtained after crushing of rocks or powdery remains of the industry. It is made by grinding the following hard rocks: dolomitized limestone, dolomite, limestone. Non-carbonate raw materials and industrial wastes are also used as raw materials. Problem statement. Road construction with the arrangement of asphalt concrete pavements requires a number of components of these mixtures. Due to this, the need in scarce carbonate mineral powders is growing. Therefore, it is advisable to consider researches directed on studying a number of by-products of industry in order to use them as a mineral powder of asphalt concrete. Purpose. To analyze the existing experience of using industrial waste as a mineral powder in production of asphalt concrete mixture for further introduction and improvement of environmental safety and operational characteristics of pavement due to new road construction materials. Materials and methods. Analysis of information sources and experience in the use of industrial waste as a mineral powder and study of requirements for materials and their composition. Results. An analytical review of the experience of using industrial waste as a mineral powder was performed. Various materials have been studied and analyzed, requirements for materials, their particle size distribution, content in asphalt concrete mixture had been established. Conclusions. Analysis of information sources regarding use of industrial waste as a raw material for the production of mineral powder had determined that they are used in the whole volume in different countries and in most cases in road construction. It had been found that the use of various wastes during road construction is a viable option that needs further study.

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