The slag composition is normally high in Fe 2 O 3 and SiO 2, both of which attack magnesia in the refractory to form magnesio-ferrite, and Forsterite, whilst the sulphur present in the vapor phase also attacks magnesia to form magnesium sulphate. The use of ferrous metals started in around 1,200 BC when iron production started to become commonplace. The yield of aluminium and heavy metals we generate with our on-site bottom ash processing installations is, on … This is widely due to the exceptional scarcity and economic value of certain non-ferrous metals which are, inevitably, discarded during the extraction process to some extent. Aftertreatment of the slags is required to sustainably maintain the limits. 1 IME Process Metallurgy and Metal Recycling, RWTH Aachen University, 52072 Aachen, Intzestr. NON FERROUS RECYCLING FOR HIGH METAL RECOVERY PROFITS. There is a win-win situation for the environment and for the operator. granulated blast furnace slag sgs report. We use cookies for statistical and measurement purposes, to help improve our website and provide you with a better online experience. © 2019 Elsevier B.V. All rights reserved. https://doi.org/10.1016/j.resconrec.2019.104627. Non-Ferrous Residues The PRIMUS® Process provides an efficient solution for recovering non-ferrous With smelting slags, two approaches are available in principle for recycling. This new study tracks and critically analyses how this market will develop across the next ten years, with forecast growth at … ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Upcycling of non-ferrous metallurgy slags: Identifying the most reactive slag for inorganic polymer construction materials. Key players that hold a majority stake in the Ferrous and Non-ferrous Slag market share are JFE Holdings,U.S. dues, and converts all gangue materials into inert slag, e.g. • Lower (FeO + CaO)/SiO 2 molar ratio in the slag resulted in higher 2 d strength. The product (ZORBA) from this non-ferrous separator is a valuable input to further separate and upgrade the inherent non-ferrous metals. recover further non ferrous materials from previously processed IBA in an impermanent modular plant on site; separation of non ferrous materials from the non ferrous mix in our stationery plant in Emmeloord; We offer various financial and investment structures with regard to the slag processing installations we engineer and install. This ushered in the Iron Age. NON-FERROUS METAL SCRAP DIVISION Our collection area is mainly the non-ferrous metal waste of industrial plants, but we purchase non-ferrous metal waste from residential and trader enterprises as well. Non-ferrous hub ‘economically feasible’ ‘Following a US$3 million investment in research and development, we came to the conclusion that it is possible and economically feasible to remove slag waste and turn it into export and domestic products,’ said Christos Efstathiadis, general manager at … Regardless of whether it's non-ferrous metal recovery from waste incineration ash, e-waste, shredder operation or dry-mechanical sorting of mixed metal-bearing residues. Non-ferrous metal scrap. At 28 d, the optimum slag had compressive strength like CEM I 52.5, i.e. By continuing you agree to the use of cookies. In conclusion, the chemistry of the slags influences the mechanical properties at all ages, while the activating solution can be used to fine-tune the kinetics and early age properties. Non-ferrous metals keep the world moving and are essential for the operation of all the items we use in our daily lives, such as smartphones, tablets, PCs, computers, or electric vehicles. The optimum slag was found in the middle of the studied compositional range, resulting in an inorganic polymer reaching 53 MPa. Many slags are therefore still deposited today, although they sometimes have high value metal contents, their recovery would be timely and useful. You can also contact a local agent of the Küttner Group. Bernd FRIEDRICH1, Michael KALISCH2, David FRIEDMANN1, Rolf DEGEL2. A non-ferrous slag from the production of metallic zinc was studied as a new ingredient for concrete. Here, Küttner offers attractive solutions to metallurgically treat the slags so that they meet the requirements beyond the legal requirements. Higher SiO2 content resulted in increased glass formation. The conference in Vienna in June 2021 (postponed from May 2020) will allow all attendees to maximise their profits from slag - both ferrous and non-ferrous, will keep them up-to-date with the industry state-of-the-art and will provide extensive networking and business opportunities for both producers and users of slag and slag-based products. Non-ferrous prices discovered on our platforms are used as the global reference price. For the 2 d compressive strength, higher silica content of the slag and activating solution resulted in higher early strengths, reaching 19 MPa for the slag with higher FeO/CaO molar ratio. On a global scale, these slags are landfilled or used in low-value applications. They can be approved as building materials and recycled, recycling costs are avoided. proposed that after magnetite was reduced to iron, foaming slag was formed in the upper slag layer, causing increase in the copper concentration in slag after 10 min of reduction time. The real and virtual worlds are moving closer togethe…, We make high demands on ourselves first, because this is the only way we remain able to fulfil your …, Küttner GmbH & Co. KG – Alfredstr. Non-ferrous metallurgy slags show potential to be upcycled in construction materials. Foundry/Non-Ferrous KT-Grant designs and builds specialty-engineered equipment for lead, copper, zinc, and other foundry/non-ferrous industry applications. The range of potential applications is gradually expanding as a result of research projects into the suitability of using. ground granulated furnace slag. During smelting, when the ore is exposed to high temperatures, these impurities are separated from the molten metal and can be removed. This new study from Smithers Apex tracks and critically analyses how this market will develop across the next ten years, with forecast growth at 1.0% CAGR to reach 133.7 million tonnes in 2029. Only the slags, which have special standards and pass eluate tests, can today be used as building materials, blasting agents or for bank attachment. Depending on the iron and steel production process different slag types can be manufactured. Slag 1 was obtained from a lead blast furnace operation. Upcycling these slags to produce a sustainable cementitious binder, e.g. Description of the Slag Samples Different slag samples were obtained from non-ferrous smelting operations. China Hazardous Waste & Exemption Lists For Non Ferrous Recycling On November 27 2020, China officially released the “National Hazardous Waste List (2021 Edition)”. Non-ferrous Slag TOMRA Sorting Solutions can help you sort the value out of non-ferrous slag. Non Ferrous Industry Copper. The aim of this work is to optimize these slags as precursors for inorganic polymers. electric arc furnace slag & aggregate As a specialist in the recovery of non-ferrous metals from slags, or bottom ash (IBA), Recco facilitates a state-of-the-art system that separates the aluminium and heavy metals in 3 grading sizes from residue aggregates. Over the past years, the changing market for non-ferrous metals has diversified considerably and is now facing a number of challenges and opportunities. The basic chemistry of these slags can be reduced to the ternary system CaO-FeO-SiO2. Often rightly so, since the high heavy metal content does not allow its use as a mineral product. The metal fraction consists of both ferrous and non-ferrous metals. The ground slag replaced 15% of portland cement, whereas the un-ground slag replaced 20% of the natural sand. Non-ferrous metallurgy slags show potential to be upcycled in construction materials. THE SUBMERGED ARC FURNACE (SAF) STATE OF ART IN METAL RECOVERY FROM NON-FERROUS SLAGS. Their compositions are for the oxygen potential determining constituents are listed in Table 1. Non-ferrous fraction larger than 10 mm as output material in the processing of aluminum salt slag. Banks and Harrison [35] investigated carbothermic reduction of non-ferrous metals, including Cu and Ni, from Tests give certainty Which technical solution is the right one for your recycling process? We use cookies to help provide and enhance our service and tailor content and ads. Equipment options for specific furnace criteria. Because its specific gravity is less than that of pig iron, during the heating process the molten slag rises above the pig iron allowing it to be easily separated and recovered. Steel,Jiangsu Shagang Group,Tata Steel,Hindalco Industries Ltd,Belmont Metals,ArcelorMittal,DAITO Industry.,Ltd.,Nippon Steel & Sumitomo Metal Corporation,Posco,Yamazaki Metal Industry,Baosteel,Anshan Iron & Steel Group andVedanta Resources plc. Non-ferrous metallurgy slags are currently do not reach their full valorization potential. Slag and dross, which occur in significant amounts in every metallurgical process, have a very bad reputation as partially hazardous residues. 5th International Slag Valorisation Symposium | Leuven | 03-05/04/2017 139 THE SUBMERGED ARC FURNACE (SAF) STATE OF ART IN METAL RECOVERY FROM NON-FERROUS SLAGS Bernd FRIEDRICH1, Michael KALISCH2, David FRIEDMANN1, Rolf DEGEL2 1 IME Process Metallurgy and Metal Recycling, RWTH Aachen University, 52072 Aachen, Intzestr. In nature, iron, copper, lead, nickel and other metals are found in impure states called ores, often oxidized and mixed in with silicates of other metals. Benefits of sensor-based slag metal sorting at a glance: Free metal recovery: Separating non-magnetic metallic particles effectively means earning revenue at low cost. It consists mainly of two materials: metal and mineral fractions. 28, 45130 Essen – Phone: +49 201 7293 0 – Fax: +49 201 77 66 88 – [email protected] 3, Germany . However, with increasingly stringent landfill limits, this disposal route will be difficult or expensive in the future. Slag and dross, which occur in significant amounts in every metallurgical process, have a very bad reputation as partially hazardous residues. Do you have any questions, or do you need more information. They are non-metallic rock-like materials which are produced together with the metallic products of these processes. Slags with molar ratios of (FeO + CaO)/SiO2 = 1.1–2.3 and FeO/CaO = 1.9–5.4 were synthesized, as they represent slags found within the non-ferrous metallurgical industry. By clicking I accept you agree to such purposes. Blast furnace slag is a combination of silica and other non-ferrous components of iron ore, ash from coke used as a reducing material, and limestone auxiliary material. Disseminated metal concentration: Concentrating metal containing slag particles before it undergoes separation, through crushing and jigging, protects crushers at little expense. Iron and steelmaking slags (ferrous slags) are co-products of the iron and steel making industry. 5th International Slag Valorisation Symposium | Leuven | 3-5/04/2017 1 . inorganic polymers, does not only substitute the vast CO2 emitting Portland cement, but also gives economic motivation to metallurgical companies to invest in the valorization of their slags. At the same time, skillful process management maximizes the selective recovery of recyclables from these slags and decouples energy from the process. Ferrous lags can be broadly categorized as ferrous (iron/steel) and non-ferrous (copper, lead/zinc) depending on the industry from which they come. Lower (FeO + CaO)/SiO2 molar ratio in the slag resulted in higher 2 d strength. In 2019 production volumes of non-ferrous slag will be over 116.4 million tonnes worldwide. Slag is the collection of compounds that are removed. • Higher CaO content resulted in higher strength increases from 2 to 28 d. • The activating solution influences the … Ferrous slag leachate is commonly less metal-rich than leachate from non-ferrous slag generated during base metal extraction; the latter leachate may even be acidic due to the oxidation of sulfides. Slag 2 is a cleaned lead blast furnace slag. Copyright © 2021 Elsevier B.V. or its licensors or contributors. Often rightly so, since the high heavy metal content does not allow its use as a mineral product. Slag 3 is a reduced lead blast furnace slag. Copper slag Nickel Slag 20-60mm // Product // COM Tertiary EM For more information on non-ferrous slag, please contact us. Precision refractory tearout or partial removal. Slags with higher glass fraction reacted more quickly with the sodium silicate solutions used (molar ratios SiO2/Na2O = 1.6–2.0 and H2O/Na2O = 25). 3, Germany 2 SMS Group GmbH, Eduard … Higher CaO content resulted in higher strength increases from 2 to 28 d. The activating solution influences the kinetics and early age strengths. The recovery of the metals can be implemented using ferrous and non-ferrous metal separators adapted to different grain classes. Non-ferrous slag or Fe rich slag has been used as source of aluminosilicate to synthesize inorganic polymers (Pontikes et al., 2013). In many smelting processes, oxides are introduced to control the slag chemistry, assisting in the removal of impurities and protecting the furnace refractorylining from excess… The resulting product is a slag mass called IBA: Incineration Bottom Ashes. In 2018 and 2019, we therefore invested in new non-ferrous metal separators and in “Stratego”, the most efficient metal finishing machinery on the market. Another major difference in non-ferrous extraction is the greater emphasis on minimizing metal losses in slag. New production processes and flexible process technology are placing ever increasing demands on elec…, The fourth industrial revolution is a reality. Below is a brief overview of how we process slag … At 28 d, slags with higher CaO content showed a higher relative strength increase with respect to the 2 d strength. Thanks to the combination of MHF and EAF, the PRIMUS® Process achieves total recovery of zinc and lead, as opposed to other recycling processes. The reactivity of non-ferrous slag in alkaline solution depends on the amorphous content of slag, which is affected by the cooling rate of slag. It was used in two forms: ground and un-ground material. 2 SMS Group GmbH, Eduard … usable for road construction. Associated core technologies of the Küttner Group. Incinerator slags are usually first buffered (ageing) and then upgraded in what is called an SCF (slag cleaning furnace). Select your desired business unit and see your options in the vicinity of your location on our world map. The Future of Non-Ferrous Slag to 2029 In 2019 production volumes of non-ferrous slag will be over 116.4 million tonnes worldwide. 53 MPa. Recovery of the ferrous and non-ferrous metals and also the use of the pure, metal-free slag itself as a secondary construction material. Cookie Policy. Removal of excess burden/slag. Ferrous Slag – general information. The Future of Non-Ferrous Slag: Market Forecasts to 2027 identifies some typical end uses for the non-ferrous slag residue, mainly in road construction and buildings, as well as substitutes for sand in sandblasting processes.