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  • Beneficial Reuse US EPA ARCHIVE DOCUMENT

     · to reuse 340 000 tons of steel slag from Chaparral Steel.18 Metal Finishing Wastewater sludge from metal finishing operations is a hazardous waste that contains recoverable concentrations (up to 40 ) of copper nickel chromium tin

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  • Hazard-Free Treatment and Reuse of Magnesium Slag

     · Abstract. This chapter mainly discusses the magnesium (Mg) slag generated in silicon thermic reduction of magnesium by Pidgeon process. Fluoride and fine dust in the slag and also the huge quantity of the slag (six to seven times of the magnesium produced) cause a big problem of environmental pollution which can be eliminated by different technologies.

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  • Reuse of steel slag in bituminous paving mixtures

     · Reuse of steel slag as recycled material can be seen as a way to limit the amount of dumped wastes and allows to reduce the consumption of natural materials (i.e. natural aggregates).

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  • Environmental Guidelines for Nickel Smelting and Refining

     · from nickel sulfide ores often contain other metals such as copper and precious metals and consideration should be given to further processing for their recovery. Slag can be used as construction material after nickel recovery as appropriate (e.g. return of converter slag to the furnace). Sanitary sewage effluents require

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  • Environmental Guidelines for Nickel Smelting and Refining

     · from nickel sulfide ores often contain other metals such as copper and precious metals and consideration should be given to further processing for their recovery. Slag can be used as construction material after nickel recovery as appropriate (e.g. return of converter slag

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  • Development of a recycling process for nickel-metal

     · reuse. Spent NiMH batteries contain 36–42 nickel 3–4 cobalt and 8–10 mischmetal consisting of lanthanum cerium praseodymium and neodymium. The dismantled and processed NiMH are melted in a dc electric arc furnace producing a nickel–cobalt alloy and a slag

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  • Feasibility Study for the Recycling of Nickel Metal

     · from this process are nickel-iron scrap steel scrap polypropylene and nickel metal. The second process alternative is to produce ferroalloys utilizing pyrometallurgical processes. The battery electrodes and powders are smelted in an electric air furnace to produce a crude ferronickel product and a slag rich in the hydride alloy elements.

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  • (PDF) Ferronickel Slag Uses and Environment

    Recovery of ferronickel entrained in t he slag is materialized by the use of magnetic separators. intercepting the handling circuit of the slag after le aving the sedimentation pond. The amount of

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  • Decrease of Material Burden in a Novel Alkali-Saving

     · Conventional reduction treatment methods for nickel slag show drawbacks such as high energy cost heavy material burden or secondary pollution. Thus a novel environmentally friendly reduction treatment method for high-silicon wastes especially nickel slag is proposed in this paper. The main characteristic is to lower the alkali–ore ratio (mass ratio of NaOH to ore) through introducing a

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  • Particles Extracted from Nickel Slag

     · Abstract The utilization of nickel slag has attracted much attention due to its high-content of valuable elements. As a part of these efforts this work focuses on whether magnetite crystals obtained from nickel slag via molten oxidation magnetic separation and ball-milling can be used as a microwave absorber.

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  • Beneficial ReuseEPA s Web Archive US EPA

     · xSlag Slag is similar to blast furnace slag for which several reuse markets already exist. There is not much of a barrier to reuse of this material and regulators accept this reuse. xRefractory Equipment Low quantity makes finding a use for this material difficult it currently goes to landfills.

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  • Beneficial Reuse US EPA ARCHIVE DOCUMENT

     · to reuse 340 000 tons of steel slag from Chaparral Steel.18 Metal Finishing Wastewater sludge from metal finishing operations is a hazardous waste that contains recoverable concentrations (up to 40 ) of copper nickel chromium tin

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  • Environomics Program for Beneficial Reuse of Organic

    Environomics Program for Beneficial Reuse of Metallic Byproducts SWARF Steve Rundell President Solvent Systems International Inc. (SSI) (847) Ext. 18

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  • Applicability of Ferro-Nickel Slag as a Sand Compaction

     · Applicability of Ferro-Nickel Slag as a Sand Compaction Pile Method Material Authors M. Kitazume. x. M. Kitazume. Search for articles by this author Reuse Recovery and Management Applicability of Ferro-Nickel Slag as a Sand Compaction Pile Method Material M. Kitazume Port and Airport Research Institute Yokosuka Japan S. Miyajima Port

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  • Nickel Smelting and RefiningIFC

    nickel sulfide ores often contain other metals such as copper and precious metals and con-sideration should be given to further process-ing for their recovery. Slag can be used as construction material after nickel recovery as appropriate (e.g. re turn of converter slag

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  • Koniambo Nickel SASSMSP

    Koniambo Nickel (KNS) is a joint venture whose capital is 51 owned by SMSP and 49 by Glencore. KNS is responsible for the construction the ramp-up and operation of the Northern metallurgical plant with a nominal capacity of 60 000 tonnes per year and the mining activity on the Koniambo massif located in Northern Province between Voh and Koné.

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  • Reuse of industrial waste residues-GRM series vertical

     · GRM series vertical mills are suitable for processing various industrial wastes such as slag steel slag nickel slag and various materials such as raw materials clinker coal metal and non-metallic ores it integrates grinding drying powder separation and conveying.

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  • Environomics Program for Beneficial Reuse of Organic

    Environomics Program for Beneficial Reuse of Metallic Byproducts SWARF Steve Rundell President Solvent Systems International Inc. (SSI) (847) Ext. 18

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  • Heterogeneity of glass components in slag after nickel

    slag proposed by the authors is based on the ability to change the slag phase composition by its oxidation and reduction processes for the enrichment of ore mineralization for reuse. Keywords metallic glass slags nickel metallurgy de-sulphating Streszczenie

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  • Crystallization characteristics of iron-rich glass

     · The crystallization process of iron-rich glass-ceramics prepared from the mixture of nickel slag (NS) and blast furnace slag (BFS) with a small amount of quartz sand was investigated. A modified melting method which was more energy-saving than the traditional methods was used to control the crystallization process. The results show that the iron-rich system has much lower melting temperature

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  • UG-Mat Nonferrous Slags Recycled Materials Resource

    Nickel Slag Air-cooled nickel slag is brownish-black in color. It crushes to angular particles but has a smooth glassy texture. The specific gravity of air-cooled nickel slag may be as high as 3.5 (15) while the absorption is quite low (0.37 percent). (3) The unit weight of nickel slag is

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  • companies that process nickel slag

    Jun 30 2016 0183 32 Nickel slag recycling is currently another emerging industry slag after steel slag water slag and other industrial waste recycling Chaeng Xinxiang Great Wall Machinery Production GRMS series vertical slag mill plays a huge role in the recovery of nickel slag grinding process the current Chaeng can to complete the 300 000 tons --100 tons of nickel slag

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  • Reuse of industrial waste residues-GRM series vertical

     · GRM series vertical mills are suitable for processing various industrial wastes such as slag steel slag nickel slag and various materials such as raw materials clinker coal metal and non-metallic ores it integrates grinding drying powder separation and conveying. the treatment and reuse of industrial waste has become an important

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  • HETEROGENEITY OF GLASS COMPONENTS IN SLAG AFTER

    The problem of the disposal of metallurgical slags in the copper-nickel industry also remains open in the Kola Peninsula area where this kind of exploitation and processing of sulphide Cu-Ni deposits is conducted. The urgent need is to reuse the waste slag heaps through the effective manner of their use based on our available technologies.

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  • Reuse of by-products in asphalt pavements Prof. Marco

     · Reuse of by-products in asphalt pavements The Italian experience step 1 (lab testing) BBM asphalt base course AWC asphalt wearing course SMA Stone Mastic Asphalt PA porous asphalt with EAF slag n = with natural aggregate Four different types of mixtures 1. Without EAF slags (natural aggregate) 2. With EAF slags (25 to 45 )

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  • (PDF) Optimum combination of ferro-nickel slag (FeNi4) to

    Relation between the percentage of slag strength and weight of concrete According to Figure 8 the increased strength of concrete in the use of FeNi4 nickel slag by 25 is due to the effect of

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  • Structure and Phase Changes of Nickel Slag in Oxidation

    To overcome the difficulty in the direct reduction of Fe2SiO4 in nickel slag the isothermal oxidation of the nickel slag was conducted between 300 and 1000 °C. Its morphology and phase composition after oxidation at 300–1000 °C for 5–30 min are analyzed by means of Scanning electron microscopy X-ray diffraction and thermodynamic calculation.

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  • (PDF) THE REUSE OF SLAG RESULTED FROM

    THE REUSE OF SLAG RESULTED FROM INCINERATION PROCESS. Download. THE REUSE OF SLAG RESULTED FROM INCINERATION PROCESS. Lavinia Lupa. Adina Negrea. Petru Negrea. Lavinia Lupa. Recovery of Nickel from Spent Industrial Catalysts Using Chelating Agents Decomposition of HI for production of hydrogen in SI thermo-chemical cycle View project.

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  • A Quick Guide to Battery Reuse and RecyclingUnion of

     · These plants use high temperatures ( 1500 o C) to burn off impurities and recover cobalt nickel and copper. Lithium and aluminum are generally lost in this processes bound in waste referred to as slag. Some lithium can be recovered from slag using secondary processes.

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  • Process Envelopes for Stabilisation/Solidification of

     · of low nickel and zinc concentrations 2007). (Barth et al.Hence it is important to promote . 4. sustainable reuse of the industrial by-product in contaminated land remediation. Studies on . 5. lime-GGBS blends in the literature have mainly focused on the influence of GGBS on the . 6

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  • HETEROGENEITY OF GLASS COMPONENTS IN SLAG AFTER NICKEL

    The problem of the disposal of metallurgical slags in the copper-nickel industry also remains open in the Kola Peninsula area where this kind of exploitation and processing of sulphide Cu-Ni deposits is conducted. The urgent need is to reuse the waste slag heaps through the effective manner of their use based on our available technologies.

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  • Exploring the Global Journey of Nickel with Markov Chain

     · Over time nickel is lost to the environment and as a tramp element in carbon steel the final distribution of nickel among these absorbing states is 78 and 22 respectively. Of all the nickel in ore extracted in 2005 fully 28 will eventually end up in the tailings slag and landfills of China.

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  • Recycling and environmental issues of metallurgical slags

     · Thus reuse of steelmaking slag as a high-quality asphalt aggregate is hampered by the hydration of free lime. To eliminate the expansion problem the slag is allowed to age out of doors for several months then the slag should not be crushed again after ageing. Powders of steel slag are

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  • (PDF) The influence of nickel slag aggregate concentration

    Nickel slag contains many elements of silicates so that it can contribute to improving the interface between aggregate and cement paste. Thus nickel slag is very potential to be used as concrete

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  • Reuse of Nickel Slag Powder as Supplementary

    Reuse of Nickel Slag Powder as Supplementary Cementitious Materials on Eco-Green Concrete Reynaldi Akbar 1 L.Oksri-Nelfia 2 Sotya ASTUTININGSIH 3 1 2Jurusan Teknik Sipil Universitas Trisakti Jakarta 3Jurusan Metalurgi Universitas Indonesia

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  • Particles Extracted from Nickel Slag

     · Abstract The utilization of nickel slag has attracted much attention due to its high-content of valuable elements. As a part of these efforts this work focuses on whether magnetite crystals obtained from nickel slag via molten oxidation magnetic separation and ball-milling can be used as a

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  • Integrated Battery Scrap Recycling and Nickel Slag

    Industrial nickel slag from the direct Outotec nickel flash smelting (DON) process was mixed with both synthetic and industrial battery scrap. The end products of the slag-scrap mixtures after reduction at 1400 °C in a CH4 (5 vol )-N2 atmosphere were an Ni–Co–Cu–Fe metal alloy and FeOx–SiO2 slag.

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  • Recycling and environmental issues of metallurgical slags

     · Thus reuse of steelmaking slag as a high-quality asphalt aggregate is hampered by the hydration of free lime. To eliminate the expansion problem the slag is allowed to age out of doors for several months then the slag should not be crushed again after ageing. Powders of steel slag are

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  • Hazard-Free Treatment and Reuse of Magnesium Slag

     · Seiji T Chekyu K Akira I (1967) Fluxing effect of iron blastfurnace slag and Pidgeon process s slag in smelting of copper and nickel ores I. on copper yield and matte grade. Technology reports of the Osaka University Tokumoto 17(782) 345–352. Google Scholar

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  • (PDF) The influence of nickel slag aggregate concentration

    The influence of nickel slag aggregate concentration to compressive and flexural strength on fly ash-based geopolymer composite. Husain Ahmad. Agung Setiawan. Andi Irhamsyah. Husain Physics.

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  • Preparation and Oxidation Behavior of Metallic Nickel

    To survey the probability of the re-utilization of nickel containing slag corroded magnesia and alumina-graphite refractories different amounts of nickel oxide (NiO) were used as one of raw materials to synthesize nickel containing magnesium aluminum oxynitride (MgAlON) composites and the sintering and oxidation behavior have been explored in this work.

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  • The use of nickel slag vertical grinding mill can achieve

     · Nickel slag recycling and reuse is another new industry after steel slag water slag and other industrial waste slag Chaeng (Xinxiang Great Wall Machinery) GRMS series of slag vertical mill in the nickel slag grinding recycling plays a significant role in the current Chaeng can complete an annual output of 300 000 tons100 0000 tons of nickel slag production line matching production

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