Sensor‐Based Ore Sorting Technology in Mining—Past, Present and Future

Robben, Christopher; Wotruba, Hermann

doi:10.3390/min9090523

Cited by 71 publications

(47 citation statements)

References 15 publications

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“…In addition, the application of modern sensor-based sorting can substitute hand sorting. As mentioned in Section 4.2, the density difference of low-dense calcareous gangue minerals and the valuable minerals facilitates the application of X-ray transmission (XRT) sorting systems [115].…”

Section: Discussionmentioning

confidence: 99%

Mineral Processing and Metallurgical Treatment of Lead Vanadate Ores

et al. 2020

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Vanadium has been strongly moving into focus in the last decade. Due to its chemical properties, vanadium is vital for applications in the upcoming renewable energy revolution as well as usage in special alloys. The uprising demand forces the industry to consider the exploration of less attractive sources besides vanadiferous titanomagnetite deposits, such as lead vanadate deposits. Mineral processing and metallurgical treatment of lead vanadate deposits stopped in the 1980s, although the deposits contain a noteworthy amount of the desired resource vanadium. There has been a wide variety of research activities in the first half of the last century, including density sorting and flotation to recover concentrates as well as pyro- and hydrometallurgical treatment to produce vanadium oxide. There have been ecological issues and technical restrictions in the past that made these deposits uninteresting. Meanwhile, regarding the development of mineral processing and metallurgy, there are methods and strategies to reconsider lead vanadates as a highly-potential vanadium resource. This review does not merely provide an overview of lead vanadate sources and the challenges in previous mechanical and metallurgical processing activities, but shows opportunities to ensure vanadium production out of primary sources in the future.

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Section: Discussionmentioning

confidence: 99%

Mineral Processing and Metallurgical Treatment of Lead Vanadate Ores

et al. 2020

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“…Therefore, the fragmented material was sorted by optical sorting, meaning by differences in color and translucency. The sorting was carried out with a laboratory system for optical bulk material sorting (TableSort), which was developed at the Fraunhofer IOSB [13,14]. Equipped with a RGB filter camera and a filigree blow-out device, this system is suitable for small amounts of material.…”

Section: Fragmentation Of the Sample Materialsmentioning

confidence: 99%

Recovery of Raw Materials from Ceramic Waste Materials for the Refractory Industry

Seifert

Dittrich

Bach³

2021

Processes

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Products of the refractory industry are key for the production of heavy industry goods such as steel and iron, cement, aluminum and glass. Corresponding industries are dependent on thermal processes to manufacture their products, which in turn would not be possible if there were no refractory materials, such as refractory bricks or refractory mixes. For the production of refractory materials, primary raw materials or semi-finished products such as corundum, bauxite or zircon are used. Industrial recycling of refractory raw materials would reduce dependencies, conserve resources and reduce global CO2 emissions. Today, only a small quantity of the refractory materials used can be recycled because raw materials (regenerates) obtained from end-of-life materials are of insufficient quality. In this study, regenerates from different refractory waste products could be obtained using the innovative processing method of electrodynamic fragmentation. It was shown that these regenerates have a high chemical purity and are therefore of high quality. It could be confirmed that the use of these regenerates in refractory materials does not affect the characteristic properties, such as refractoriness and mechanical strength. Thus, electrodynamic fragmentation is a process, which is able to provide high-quality raw materials for the refractory industry from used materials.

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“…In addition, valuable excavated rock and soil were identified via advanced analysing techniques specifically adapted for excavated material in geographical information system (GIS) applications. Successful utilisation of excavated rock caused a general trend towards improved environmental performance, which finally led to an increased public awareness and has continuously forced engineers to come up with innovative solutions of using excavated material (Cabello Eras et al, 2013;Lafebre et al, 1998;Read et al, 2001;Robben and Wotruba, 2019;Robinson and Kapo, 2004;Rodríguez et al, 2007).…”

Section: Former Applicationsmentioning

confidence: 99%

“…During construction, the inspection of excavated material is usually conducted by a geologist in conventional tunnelling or by different camera types and sensors at the tunnel face in mechanised tunnelling embankment, landfill, disposal Bergmeister (2013embankment, landfill, disposal Bergmeister ( , 2007, Gattinoni et al (2016), Skuk and Schierl (2017), Tamparopoulos (2012), Voit (2013), Voit and Kuschel (2020) (Robben and Wotruba, 2019;Wenighofer and Galler, 2017). This allows for a separation of excavated rock into technical application classes.…”

Section: Technical Challengesmentioning

confidence: 99%

Applicability of excavated rock material: A European technical review implying opportunities for future tunnelling projects

Haas

Mongeard

Ulrici

et al. 2021

Journal of Cleaner Production

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The European Organization for Nuclear Research (CERN) is a world-wide leading organisation in the field of particle physics and operation of high-class particle accelerators. Since 2013, CERN has undertaken feasibility investigations for a particle accelerator, named Future Circular Collider (FCC) to be installed within a 90-100 km subsurface infrastructure likely to enter construction phase after 2030. An important aspect of its construction and environmental impact assessment is the management of approximately 9.1 million m 3 of excavated rock and soil. The aim of this paper is to thoroughly review the applications of excavated material across European subsurface construction projects from a technical point of view and set them into context with studies currently ongoing for FCC. We propose a conceptual flow model for rock characterisation with respect to both applicability of excavated material and tunnelling excavation techniques for future international subsurface construction projects.The review has revealed a vast and encouraging potential across different European construction sites efficiently using excavated rock and soil over the past decade ranging from concrete production, geopolymer production, embankment and landfilling. Examples of reviewed subsurface tunnelling projects are likely to be applied for FCC including concrete production, clay-sealing for embankments, geopolymer face stabilization, recultivation or agricultural usage as mixed soil material or sustainable waste disposal.

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Sensor‐Based Ore Sorting Technology in Mining—Past, Present and Future

Cited by 71 publications

References 15 publications

Mineral Processing and Metallurgical Treatment of Lead Vanadate Ores

Mineral Processing and Metallurgical Treatment of Lead Vanadate Ores

Recovery of Raw Materials from Ceramic Waste Materials for the Refractory Industry

Applicability of excavated rock material: A European technical review implying opportunities for future tunnelling projects

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