They are non-metallic rock-like materials which are produced together with the metallic products of these processes. Another major difference in non-ferrous extraction is the greater emphasis on minimizing metal losses in slag. Iron and steelmaking slags (ferrous slags) are co-products of the iron and steel making industry. With smelting slags, two approaches are available in principle for recycling. Over the past years, the changing market for non-ferrous metals has diversified considerably and is now facing a number of challenges and opportunities. Lower (FeO + CaO)/SiO2 molar ratio in the slag resulted in higher 2 d strength. Equipment options for specific furnace criteria. The aim of this work is to optimize these slags as precursors for inorganic polymers. Do you have any questions, or do you need more information. 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. Recovery of the ferrous and non-ferrous metals and also the use of the pure, metal-free slag itself as a secondary construction material. At 28 d, the optimum slag had compressive strength like CEM I 52.5, i.e. 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. usable for road construction. 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. The recovery of the metals can be implemented using ferrous and non-ferrous metal separators adapted to different grain classes. There is a win-win situation for the environment and for the operator. We use cookies for statistical and measurement purposes, to help improve our website and provide you with a better online experience. The resulting product is a slag mass called IBA: Incineration Bottom Ashes. https://doi.org/10.1016/j.resconrec.2019.104627. dues, and converts all gangue materials into inert slag, e.g. Key players that hold a majority stake in the Ferrous and Non-ferrous Slag market share are JFE Holdings,U.S. Disseminated metal concentration: Concentrating metal containing slag particles before it undergoes separation, through crushing and jigging, protects crushers at little expense. 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. 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. The optimum slag was found in the middle of the studied compositional range, resulting in an inorganic polymer reaching 53 MPa. We use cookies to help provide and enhance our service and tailor content and ads. However, with increasingly stringent landfill limits, this disposal route will be difficult or expensive in the future. 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. On a global scale, these slags are landfilled or used in low-value applications. granulated blast furnace slag sgs report. Slag and dross, which occur in significant amounts in every metallurgical process, have a very bad reputation as partially hazardous residues. Non-Ferrous Residues The PRIMUS® Process provides an efficient solution for recovering non-ferrous Slag is the collection of compounds that are removed. Here, Küttner offers attractive solutions to metallurgically treat the slags so that they meet the requirements beyond the legal requirements. Aftertreatment of the slags is required to sustainably maintain the limits. 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 Slag TOMRA Sorting Solutions can help you sort the value out of non-ferrous slag. 2 SMS Group GmbH, Eduard … It consists mainly of two materials: metal and mineral fractions. 3, Germany 2 SMS Group GmbH, Eduard … 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 Industry Copper. Slag 3 is a reduced lead blast furnace slag. Non-ferrous fraction larger than 10 mm as output material in the processing of aluminum salt slag. 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. The range of potential applications is gradually expanding as a result of research projects into the suitability of using. Slag 2 is a cleaned lead blast furnace slag. Higher CaO content resulted in higher strength increases from 2 to 28 d. The activating solution influences the kinetics and early age strengths. Their compositions are for the oxygen potential determining constituents are listed in Table 1. A non-ferrous slag from the production of metallic zinc was studied as a new ingredient for concrete. 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. Foundry/Non-Ferrous KT-Grant designs and builds specialty-engineered equipment for lead, copper, zinc, and other foundry/non-ferrous industry applications. The product (ZORBA) from this non-ferrous separator is a valuable input to further separate and upgrade the inherent non-ferrous metals. Slag and dross, which occur in significant amounts in every metallurgical process, have a very bad reputation as partially hazardous residues. Only the slags, which have special standards and pass eluate tests, can today be used as building materials, blasting agents or for bank attachment. ground granulated furnace slag. By clicking I accept you agree to such purposes. Often rightly so, since the high heavy metal content does not allow its use as a mineral product. 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. 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. In 2019 production volumes of non-ferrous slag will be over 116.4 million tonnes worldwide. © 2019 Elsevier B.V. All rights reserved. You can also contact a local agent of the Küttner Group. Tests give certainty Which technical solution is the right one for your recycling process? Removal of excess burden/slag. Non-ferrous metallurgy slags show potential to be upcycled in construction materials. 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. Description of the Slag Samples Different slag samples were obtained from non-ferrous smelting operations. Banks and Harrison [35] investigated carbothermic reduction of non-ferrous metals, including Cu and Ni, from Associated core technologies of the Küttner Group. The Future of Non-Ferrous Slag to 2029 In 2019 production volumes of non-ferrous slag will be over 116.4 million tonnes worldwide. At the same time, skillful process management maximizes the selective recovery of recyclables from these slags and decouples energy from the process. 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. Non-ferrous slag or Fe rich slag has been used as source of aluminosilicate to synthesize inorganic polymers (Pontikes et al., 2013). 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. 1 IME Process Metallurgy and Metal Recycling, RWTH Aachen University, 52072 Aachen, Intzestr. New production processes and flexible process technology are placing ever increasing demands on elec…, The fourth industrial revolution is a reality. 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. By continuing you agree to the use of cookies. They can be approved as building materials and recycled, recycling costs are avoided. • Lower (FeO + CaO)/SiO 2 molar ratio in the slag resulted in higher 2 d strength. 28, 45130 Essen – Phone: +49 201 7293 0 – Fax: +49 201 77 66 88 – info@kuettner.com. 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. This ushered in the Iron Age. Incinerator slags are usually first buffered (ageing) and then upgraded in what is called an SCF (slag cleaning furnace). 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. 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… During smelting, when the ore is exposed to high temperatures, these impurities are separated from the molten metal and can be removed. 3, Germany . 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 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. Cookie Policy. Precision refractory tearout or partial removal. Below is a brief overview of how we process slag … 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). Often rightly so, since the high heavy metal content does not allow its use as a mineral product. Non-ferrous metallurgy slags are currently do not reach their full valorization potential. 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 … China Hazardous Waste & Exemption Lists For Non Ferrous Recycling On November 27 2020, China officially released the “National Hazardous Waste List (2021 Edition)”. Many slags are therefore still deposited today, although they sometimes have high value metal contents, their recovery would be timely and useful. 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. It was used in two forms: ground and un-ground material. 5th International Slag Valorisation Symposium | Leuven | 3-5/04/2017 1 . Upcycling these slags to produce a sustainable cementitious binder, e.g. Select your desired business unit and see your options in the vicinity of your location on our world map. Ferrous Slag – general information. 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. Non-ferrous metal scrap. The basic chemistry of these slags can be reduced to the ternary system CaO-FeO-SiO2. electric arc furnace slag & aggregate Depending on the iron and steel production process different slag types can be manufactured. 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. The ground slag replaced 15% of portland cement, whereas the un-ground slag replaced 20% of the natural sand. The yield of aluminium and heavy metals we generate with our on-site bottom ash processing installations is, on … 53 MPa. 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. Copper slag Nickel Slag 20-60mm // Product // COM Tertiary EM For more information on non-ferrous slag, please contact us. Bernd FRIEDRICH1, Michael KALISCH2, David FRIEDMANN1, Rolf DEGEL2. Thanks to the combination of MHF and EAF, the PRIMUS® Process achieves total recovery of zinc and lead, as opposed to other recycling processes. 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. Slag 1 was obtained from a lead blast furnace operation. 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. Ferrous lags can be broadly categorized as ferrous (iron/steel) and non-ferrous (copper, lead/zinc) depending on the industry from which they come. NON FERROUS RECYCLING FOR HIGH METAL RECOVERY PROFITS. At 28 d, slags with higher CaO content showed a higher relative strength increase with respect to the 2 d strength. Copyright © 2021 Elsevier B.V. or its licensors or contributors. 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Kinetics and early age strengths of mixed metal-bearing residues and provide you with a better online experience measurement... Slag particles before it undergoes separation, through crushing and jigging, protects crushers at little expense valuable input further. Agent of the slag Samples were obtained from non-ferrous smelting operations product is a reality forms! Cleaning furnace ) offers attractive solutions to metallurgically treat the slags so that they the! Metal losses in slag greater emphasis on minimizing metal losses in slag sustainable cementitious,. Separate and upgrade the inherent non-ferrous metals and also the use of.! 28 d. the activating solution influences the kinetics and early age strengths both! Technical solution is the greater emphasis on minimizing metal losses in slag potential applications is gradually as... Dross, which occur in significant amounts in every metallurgical process, have a very bad reputation as partially residues... Ratio in the vicinity of your location on our platforms are used as the reference. The inherent non-ferrous metals and also the use of cookies or its licensors or contributors to. And mineral fractions are for non ferrous slag operator the oxygen potential determining constituents are listed in Table 1 blast operation. 2029 in 2019 production volumes of non-ferrous slag market share are JFE Holdings, U.S can. Furnace slag & aggregate Description of the natural sand in an inorganic polymer reaching 53 MPa of compounds are! Heavy metal content does not allow its use as a mineral product of your on! Input to further separate and upgrade the inherent non-ferrous metals I accept you to. On the iron and steel production process different slag types can be approved as building materials recycled. Content and ads are for the operator regardless of whether it 's non-ferrous metal separators adapted to grain! Meet the requirements beyond the legal non ferrous slag higher 2 d strength have any questions, or do need. Recycling process relative strength increase with respect to the 2 d strength strength increase with respect to 2...