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A comprehensive utilization method of highferrum and lowgrade bauxite belongs to the technical of metallurgy and is carried out according to the steps as follows: a large proportion of aluminium oxide is extracted through a Bayer process technology that excess lime is added, produced lowalkali red mud is prereduced through a coalbased rotary furnace process technology, then high
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Red mud (RM) is a byproduct of extracting of alumina from bauxite. Red mud contains high quantities of alkaligenerating minerals and metal ions, which can cause significant environmental damage. Many valuable components such as rareearth elements, Al, and Fe, in RM are difficult to be utilized owing to their particle size and alkalinity.
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Downloadable! Stateoftheart formation of red mud during industrial processing of bauxite in the Sverdlovsk region (Russian Federation) is presented. Red mud chemical composition is presented, and an analysis of existing ways in which they are utilised is executed. In the Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, red mud is utilised by introducing it into
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With increasing production of red mud, the environmental problems caused by it are increasingly serious, and thus the integrated treatment of red mud is imminent. This article provides an overview of the composition and the basic characteristics of red mud. The research progress of safe stockpiling and comprehensive utilization of red mud is summarized.
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This paper first summarized red mud utilization in the production of building materials, recovery of valuable metals, soil improvement and waste gas and water control etc, evaluated the status and trend of red mud utilization in the ways mentioned above, and prospected thepractical and economical utilization direction of red mud in the end.
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Yang, S. W., Cao Y. H. and Li,Q., The status and development of comprehensive utilization of red mud in the aluminum industry, Conservation and Utilization of
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Stockpiling and Comprehensive Utilization of Red Mud Research Progress Article (PDF Available) in Materials 5(7): · July 2012 with 248 Reads How we measure ''reads''
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Main utilization directions 2 Red mud utilization in China No. Red mud Direction Volume Note 1 sintering /combined process Building and construction materials 200250 kt/a Use red mud directly 2 High iron red mud from gibbsite and diaspore Building materials (bricks) kt/a use the sand separated from red mud Cement kt/a
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The safe stockpiling of red mud can be divided into two aspects: the design and safe operation of the stocking yard. The comprehensive utilization of red mud can be further divided into three aspects: the effective recycling of components, resource utilization and
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Reports (Li et al., 2018) have noted that the cumulative quantity of red mud discharged in China exceeded 350 million tons in 2017, while the utilization rate was only %. Therefore, achieving comprehensive utilization of red mud remains a challenge.
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Keywords: red mud; valuable elements; comprehensive utilization; waste management 1. Introduction Bauxite residue is a strong alkaline solid waste discharged during the industrial production of alumina [1]. The color of bauxite residue is red because of its rich iron (III) oxides, comprising approximately 20–40% of
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Reports (Li et al., 2018) have noted that the cumulative quantity of red mud discharged in China exceeded 350 million tons in 2017, while the utilization rate was only %. Therefore, achieving comprehensive utilization of red mud remains a challenge.
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Yang, Cao and Q. Li, The status and development of comprehensive utilization of red mud in the aluminum industry, Conservation and Utilization of Mineral Resources 6
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Thakur, and Sant, "Utilization of Red Mud: Part I — Analysis and Utilization as Raw Material for Absorbents, Building Materials, Catalysts, Fillers, Paints and Pigments," Journal of Scientific and Industrial Research, Vol. 42, pp. 87108 (1983) Catalysis. The catalytic behaviour of RM has been another field of research.
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Comprehensive utilization of red mud and discussion on reclaim process TAN Hongqi1,2,LIU Yuping2( of Multipurpose Utilization of Mineral Resources,Chinese Academy of Geological Sciences,Chengdu 610041,China Key Laboratory of Ore Deposit Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences,Guiyang 550002,China)
learn moreA Review of Comprehensive Utilization of HighIron Red Mud
With the increasing requirement of environmental protection, the treatment of red mud has become a more and more important issue. Depending on the various iron contents, red mud can be divided into lowiron red mud and highiron red mud. This paper reviews the comprehensive utilization of highiron red mud of China.
learn moreComprehensive Utilization of Red Mud Remaining in Alumina
Red mud is a solid waste which is generated in the process of alumina production and is of highly alkaline. Red mud has very complex compositions, but contains a variety of rare and valuable metals. In addition, its high alkalinity is a severe pollution to water, land, air and environment, which has been one of the main factors to affect the sustainable development of aluminum industry.
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Typical Cases of Red Mud Comprehensive Utilization in Alumina Enterprises. 1. China Aluminum Shandong Branch: The available data are that the comprehensive utilization rate of red mud is 25% by 2016, and the total consumption of red mud is 12 million, which is the highest utilization rate of alumina enterprises in China at present.
learn more[PDF] The Comprehensive Utilisation of Red Mud
· Red mud chemical composition is presented, and an analysis of existing ways in which they are utilised is executed. In the Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences, red mud is utilised by introducing it into the charge for the production of iron ore sinter and pellets following the use of sinter and pellets in the blast furnace charge.
learn moreA Review of Comprehensive Utilization of HighIron Red Mud
This work provided an effective method for comprehensive utilization of red mud, which mainly focused on the first step of recovering iron from a high iron content red mud by reduction roasting
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The reason of comprehensive utilization of red mud is that it contains recycled oxides and a variety of valuable metals. In this paper, the basic characterization of red mud is described. The current developments of extraction of Fe, Ti, Sc, rare earth and valuable metals from red mud are summarized with some emphasis. In addition, the technological features of each process route are analyzed
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Comprehensive utilization of red mud is a worldwide problem. Followed by the development for pollution control, this problem has been caused more and more attention,and becomed a issue that restirct sustainabel development of alumina industry.
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The aim is to provide some valuable information to further address the comprehensive utilization of red mud. Table1 listed out the chemical and mineral composition of red mud that are produced by
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The comprehensive utilization of red mud can be further divided into three aspects: the effective recycling of components, resource utilization and application in the field of environmental protection. This paper points out that the main focus of previous studies on red mud stockpiling is Sales Online
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