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Kempke, Alex (author)The main waste products of ironmaking at Tata Steel IJmuiden are CO2¬(g) and a solid waste stream consisting of mainly carbon and iron-bearing compounds. This solid waste is generally called Zn rich filter cake which contains too much Zn to be reintroduced into the iron making process. Besides Zn, Pb and Cd are also present. These filter cakes...master thesis 2019
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Visser, P. (author)For decades, scientists and engineers are searching for a safe and environmentally friendly alternative for the toxic chromate corrosion inhibitors in active protective coatings for the protection of aerospace aluminium alloys. In this search many different compounds have been investigated as leachable corrosion inhibitor, but no alternative...doctoral thesis 2019
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Polynskii, M. (author), Ananikov, Valentine P. (author)Reversible leaching of palladium nanoparticles occurs in a variety of catalytic reactions including cross-couplings, amination, the Heck reaction, etc. It is complemented by capturing of soluble palladium species on the surface of nanoparticles and de novo formation of nanoparticles from Pd precatalysts. We report here a detailed computational...journal article 2019
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Laird, J. S. (author), Visser, P. (author), Ranade, S. (author), Hughes, A.E. (author), Terryn, H.A. (author), Mol, J.M.C. (author)Studies of Li depletion in sections of a Li <sub>2</sub> CO <sub>3</sub> -primer comprising a polyurethane binder, MgO, TiO <sub>2</sub> , BaSO <sub>4</sub> in addition to Li <sub>2</sub> CO <sub>3,</sub> were performed using a combination of particle induced γ-ray and X-ray emission spectroscopies along with SEM/EDS analysis. A mixture of...journal article 2019
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Leaching characteristics and mechanism of the synthetic calcium-aluminate slags for alumina recoveryAzof, Fabian Imanasa (author), Yang, Y. (author), Panias, Dimitrios (author), Kolbeinsen, Leiv (author), Safarian, Jafar (author)The leaching characteristics and mechanism of synthetic CaO-Al <sub>2</sub> O <sub>3</sub> slags in alkaline solution at atmospheric pressure have been studied. The purpose of the study is to have a better understanding of the leaching part of the Pedersen process, as an alternative to the Bayer process for alumina production. The...journal article 2019
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Borra, C.R. (author), Vlugt, T.J.H. (author), Spooren, Jeroen (author), Nielsen, Peter (author), Yang, Y. (author), Offerman, S.E. (author)One of the main applications of ceria (CeO <sub>2</sub> ) is its use in glass polishing. About 16,000 tonnes of rare earth oxides, which is about 10% of total rare earth production, are used for polishing applications. The waste generated in glass polishing contains rare earths, along with other impurities. In this study, two different glass...journal article 2019
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Marcoen, Kristof (author), Visser, P (author), Trindade, G. F. (author), Abel, M. L. (author), Watts, J. F. (author), Mol, J.M.C. (author), Terryn, H.A. (author), Hauffman, T. (author)Organic primer coatings loaded with environmentally harmful Cr(VI) corrosion inhibitive pigments still play an important role in corrosion protection of aluminium alloys for the aerospace industry. A potential “green” alternative coating system has recently been developed, loaded with lithium salt corrosion inhibitors. Under exposure to...journal article 2018
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Barreiro, Elena M. (author), Hao, Zhimian (author), Adrio, Luis A. (author), van Ommen, J.R. (author), Hellgardt, Klaus (author), Hii, King Kuok (author)Catalyst leaching is a major impediment to the development of commercially-viable processes conducted in a liquid-phase. To date, there is no reliable technique that can accurately identify the extent and dynamics of the leaching process in a quantitative manner. In this work, a tandem flow-reactor system has been developed, which allowed us...journal article 2018
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Borra, C.R. (author), Vlugt, T.J.H. (author), Yang, Y. (author), Offerman, S.E. (author)Ceria is the main component in glass polishing powders due to its special physico-chemical properties. Glass polishing powder loses its polishing ability gradually during usage due to the accumulation of other compounds on the polishing powder or due to changes in the particle size distribution. The recovery of cerium from the glass polishing...journal article 2018
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Visser, P. (author), Meeusen, M. (author), Gonzalez Garcia, Y. (author), Terryn, H.A. (author), Mol, J.M.C. (author)This work presents the electrochemical evaluation of protective layers generated in a coating defect from lithium-leaching organic coatings on AA2024-T3 aluminum alloys as a function of neutral salt spray exposure time. Electrochemical impedance spectroscopy was used to study the electrochemical properties on a macroscopic scale. An...journal article 2017
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Hughes, Anthony (author), Laird, James (author), Ryan, Chris (author), Visser, P. (author), Terryn, H.A. (author), Mol, J.M.C. (author)The distribution and chemical composition of inorganic components of a corrosion-inhibiting primer based on polyurethane is determined using a range of characterisation techniques. The primer consists of a Li2CO3 inhibitor phase, along with other inorganic phases including TiO2, BaSO4 and Mg-(hydr)oxide. The characterisation techniques included...journal article 2017
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Feng, J. (author), Hontañón, Esther (author), Blanes, Maria (author), Meyer, Jörg (author), Guo, Xiaoai (author), Santos, Laura (author), Paltrinieri, L. (author), Ramlawi, N. (author), de Smet, L.C.P.M. (author), Nirschl, Hermann (author), Kruis, Frank Einar (author), Schmidt-Ott, A. (author), Biskos, G. (author)A major challenge in nanotechnology is that of determining how to introduce green and sustainable principles when assembling individual nanoscale elements to create working devices. For instance, textile nanofinishing is restricted by the many constraints of traditional pad-dry-cure processes, such as the use of costly chemical precursors to...journal article 2016
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Ogundiran, MB (author), Nugteren, H.W. (author), Witkamp, G.J. (author)Combined management of coal combustion fly ash and waste aluminium anodising etching solutions using geopolymerisation presents economic and environmental benefits. The possibility of using waste aluminium anodising etching solution (AES) as activator to produce fly ash geopolymers in place of the commonly used silicate solutions was explored...journal article 2016
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Visser, P (author), Liu, Y (author), Terryn, H.A. (author), Mol, J.M.C. (author)Lithium salts are being investigated as leachable corrosion inhibitor and potential replacement for hexavalent chromium in organic coatings. Model coatings loaded with lithium carbonate or lithium oxalate demonstrated active corrosion inhibition and the formation of a protective layer in a damaged area during neutral salt spray exposure. The...journal article 2016
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Krajkó, Judit (author), Varga, Zsolt (author), Wallenius, Maria (author), Mayer, Klaus (author), Konings, R. (author)The applicability and limitations of sulphur isotope ratio as a nuclear forensic signature have been studied. The typically applied leaching methods in uranium mining processes were simulated for five uranium ore samples and the n(<sup>34</sup>S)/n(<sup>32</sup>S) ratios were measured. The sulphur isotope ratio variation during uranium ore...journal article 2016
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Verburg, R.A. (author)At Tata Steel IJmuiden a part of the blast furnace dust is not recycled to prevent too high zinc levels in the blast furnace. Blast furnace dust is first separated from the off-gas into dry dust and sludge. The dry dust is collected in a dust bag and is directly transported to the sinyter plant. Then the sludge is separated by size through...master thesis 2015
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Liu, Y. (author), Visser, P. (author), Zhou, X. (author), Lyon, S.B. (author), Hashimoto, T. (author), Curioni, M. (author), Gholinia, A. (author), Thompson, G.E. (author), Smyth, G. (author), Gibbon, S.R. (author), Graham, D. (author), Mol, J.M.C. (author), Terryn, H.A. (author)An investigation into corrosion inhibition properties of a primer coating containing lithium carbonate as corrosion inhibitive pigment for AA2024 aluminum alloy was conducted. It was found that, during neutral salt spray exposure, a protective film of about 0.2 to 1.5 ?m thickness formed within the area where an artificial defect was introduced...journal article 2015
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Ukrainczyk, N. (author), Koenders, E.A.B. (author)Coupled reactive-transport processes in cementitious materials play a crucial role in the aging process pf building materials. Up to now, the effect of aging on microstructure and evolution of it’s properties, in three dimensions, was studied only by dissolution of certain phases at random locations. In this paper we present a new 3D reactive...conference paper 2014
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Susanto, A. (author), Koleva, D.A. (author), Van Beek, C. (author), Van Breugel, K. (author)Well known is that stray electrical current i.e. current with a spatial distribution in any conductive environment, can affect civil structures, e.g. initiate or enhance steel corrosion or affect microstructural and mechanical properties of the cement-based bulk matrix. While the former is related to polarization effects in conditions of current...conference paper 2013
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Meijer, G.J. (author)In this thesis a method is developed to regain the geotechnical behaviour of undisturbed quick clay by reconstitution of remoulded natural quick clay samples. Quick clay is characterised by a high sensitivity; the ratio between the undisturbed and remoulded strength is very high. Because of the high water content they behave fluid-like after...master thesis 2012