- Minerals Flotation and Separation Techniques
- Mineral Processing and Grinding
- Extraction and Separation Processes
- Recycling and Waste Management Techniques
- Aerosol Filtration and Electrostatic Precipitation
- Granular flow and fluidized beds
- Advancements in Battery Materials
- Characterization and Applications of Magnetic Nanoparticles
- Pickering emulsions and particle stabilization
- Innovative Microfluidic and Catalytic Techniques Innovation
- Surface Modification and Superhydrophobicity
- Advanced Battery Technologies Research
- Enhanced Oil Recovery Techniques
- Cyclone Separators and Fluid Dynamics
- Metal Extraction and Bioleaching
- Metallurgical Processes and Thermodynamics
- Force Microscopy Techniques and Applications
- Advanced X-ray and CT Imaging
- Electrostatics and Colloid Interactions
- Nanoparticle-Based Drug Delivery
- Electrical and Bioimpedance Tomography
- Membrane Separation Technologies
- Ultrasound and Cavitation Phenomena
- Heat and Mass Transfer in Porous Media
- Microfluidic and Bio-sensing Technologies
TU Bergakademie Freiberg
2016-2025
Fraunhofer Institute for Integrated Systems and Device Technology
2019
Helmholtz Institute Freiberg for Resource Technology
2014
Society for Chemical Engineering and Biotechnology
2014
John Wiley & Sons (Germany)
2014
Clausthal University of Technology
2004-2008
Karlsruhe Institute of Technology
2001-2006
Karlsruhe University of Applied Sciences
1999-2002
The recycling of spent lithium-ion batteries (LIB) is becoming increasingly important with regard to environmental, economic, geostrategic, and health aspects due the increasing amount LIB produced, introduced into market, being in following years. itself becomes a challenge face on one hand special LIB-technology other reply idea circular economy. In this paper, we analyze different concepts for LIBs categorize them according state-of-the-art schemes waste treatment technology. Therefore,...
Recycling is a potential solution to narrow the gap between supply and demand of raw materials for lithium-ion batteries (LIBs). However, efficient separation active components their recovery from battery waste remains challenge. This paper evaluates influence three routes liberation LIB (namely mechanical, thermomechanical, electrohydraulic fragmentation) on lithium metal oxides (LMOs) spheroidized graphite particles using froth flotation. The products were characterized SEM-based automated...
Abstract A drying droplet containing colloidal particles can consolidate into a spherical assembly called supraparticle. Such supraparticles are inherently porous due to the spaces between constituent primary particles. Here, emergent, hierarchical porosity in spray‐dried is tailored via three distinct strategies acting at different length scales. First, mesopores (<10 nm) introduced Second, interstitial pores tuned from meso‐ (35 macro scale (250 by controlling particle size. Third,...
The zigzag (ZZ) classifier is a sorting and classification device with wide range of applications (e.g. recycling, food industry). Due to the possible variation geometry process settings, apparatus used for various windows operation due specifications separation cut sizes from 100 µm several decimetres, compact fluffy materials as well foils). Since ZZ gains more interest in recycling applications, it discussed this paper, regards its design, mode operation, influencing parameters research...
Prior to the mechanical processing, discharging is necessary prevent hazards. While process, different phenomena can occur changing characteristics of functional units LIB. This study reveals influence on recycling and obtained material when discharge levels are used for various cells differing in their cell chemistry. It shows that cells, example, copper deposits happen cathode as well active separator foil. These new properties deteriorate black mass quality show contamination products...
Abstract Filteruchen bilden sich in industriellen Prozessen häufig mit ungleichmäßiger Kuchenhöhe. Dies kann den Erfolg anschließender Prozessschritte, z. B. der Filterkuchenwäsche oder mechanischen Entfeuchtung, wesentlich beeinflussen. Um Einfluss Kuchengeometrie systematisch untersuchen zu können, muss eine Methode zur reproduzierbaren Bildung von Filterkuchen inhomogener entwickelt werden. Gleichzeitig ist sicherzustellen, dass keine anderen Inhomogenitäten wie Strukturveränderungen...
Abstract In this paper, three-dimensional (3D) image data of ore particle systems is investigated. By combining X-ray microtomography with scanning electron microscope (SEM)-based analysis, additional information about the mineralogical composition from certain planar sections can be gained. For analysis tomographic images extraction single particles essential. This performed a marker-based watershed algorithm and post-processing step utilizing neural network to reduce oversegmentation. The...
X-ray computed tomography (XCT) has seen significant development in scan time and spatial resolution over the last decades. It is now increasingly used field of particle technology including ex-situ in-situ applications to study time-lapse processes. This due its non-destructive principle giving 3D information on inner structure composition specimens. article shortly summarizes XCT focusing terms relevant for technology. also gives a brief outlook promising directions development, which may...