Results 51 to 60 of about 16,292 (270)

Characterization of lead-recycling facility emissions at various workplaces: Major insights for sanitary risks assessment [PDF]

, 2011
Most available studies on lead smelter emissions deal with the environmental impact of outdoor particles, but only a few focus on air quality at workplaces.
Dumat, Camille, Pradère, Philippe, Sarret, Géraldine, Sauvain, Jean-Jacques, Sobanska, Sophie, Uzu, Gaëlle   +5 more
core   +4 more sources

Effect of Temperature and Atmosphere on Agglomeration of Bed Particles in a Bubbling Fluidised Bed Burning Na‐Enriched Coal

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Agglomeration of bed materials during circulating fluidised bed (CFB) combustion or gasification of high‐alkali fuel is a practical challenge in industrial practice. This work investigates experimentally the effect of temperatures (700°C–900°C) and atmosphere (air equivalence ratios 1.61–0.53) on agglomeration in a lab‐scale bubbling fluidised
Zipeng Guo, Jianbo Li, Xiaofei Long, Quanhai Wang, Xiaofeng Lu   +4 more
wiley   +1 more source

Effect of Ingredient and Particle Size on Semispherical Melting-Point and Melting Rate of High Basicity Refining Slag

Teshugang, 2014
The effect of basicity, BaO(6%-14% ), CaF2(0-10% ) and A12O3(18%-28% ) on semispherical melting-point and melting rate of basic refining slag series CaO-SiO2-A12O3-MgO-CaF2 has been studied with CQKJ-III mineral slag melting temperature measure device ...
董方, 邓浩华, 郄俊懋
doaj  

Processing of copper slags on the basis of electro-slag and arc-slag refinings

Збірник наукових праць НУК, 2014
Results of the experimental melts, confirming the extraction of copper from slag, lump and dusty wastes of copper melting production in application of processes of arc and electroslag melting are given. The percentage of copper extraction, reaching 97.9% and its content in ingot – 93…99.6 %, is shown. 
Medovar, L. B., Saienko, V. Ya., Riabinin, V. A., Zaitsev, V. A., Zhuravel, V. M., Yarosh, V. M., Shevchenko, M. T., Hryshko, Yu. S.   +7 more
openaire   +1 more source

Computational Thermodynamics and Kinetics in Materials Modelling and Simulations [PDF]

, 2007
Over the past two decades, Computational Thermodynamics and Kinetics have been tremendously contributed to materials modeling and simulations and the demands on quantitative conceptual design and processing of various advanced materials arisen from ...
Agren, John, Chen, Qing, Engström, Anders, Hillert, Mats, Höglund, Lars, Shi, Ping-Fang, Sundman, Bo   +6 more
core   +2 more sources

Tracking the Dynamics of human Colonisation and Adaptation in Central Vanuatu: Preliminary Results From Excavation and Survey at Pangpang, East Efate

Archaeology in Oceania, EarlyView.
ABSTRACT In October 2022 an extensive archaeological landscape was identified by staff of the Vanuatu Cultural Centre at Pangpang on the east coast of Efate Island in central Vanuatu. It included midden deposits on the banks of the Pangpang River near the sea at Forari Bay where Lapita and Early Erueti‐style pottery sherds were recovered.
Stuart Bedford, Iarawai Phillip, Lucas Sarvanu, Edson Willie, Stuart Hawkins, Robert Henderson, Frédérique Valentin, Siri Seoule, Emily Nutman, Phillip Parton   +9 more
wiley   +1 more source

Innovative electrospun geopolymer/zeolite/PVA composite membranes

The Canadian Journal of Chemical Engineering, EarlyView.
Proposed scheme of gas adsorption mechanisms on electrospun geopolymer/zeolite/PVA composite membranes. Abstract Innovative electrospun poly(vinyl alcohol) (PVA)–geopolymer–zeolite 13X composite membranes were successfully fabricated and systematically characterized.
Mariana Schneider, Mar Calzado‐Delgado, Enrique Rodríguez‐Castellón, Maria Olga Guerrero‐Pérez, Dachamir Hotza, Agenor De Noni Junior, Adel Zrelli, Regina de Fátima Peralta Muniz Moreira   +7 more
wiley   +1 more source

Removal of SiC and Si3N4 inclusions in solar cell Si scraps through slag refining

High Temperature Materials and Processes, 2022
Silicon was recovered from solar cell Si scraps through 42.5 mol% SiO2–42.5 mol% CaO–15 mol% Al2O3 slag refining. The motion behaviors of Si3N4 and SiC were observed in situ and real-time using a high-temperature laser confocal microscope, and the ...
Li Yaqiong, Zhang Lifeng, Pan Di
doaj   +1 more source

Dynamic model of basic oxygen steelmaking process based on multi-zone reaction kinetics : modelling of manganese removal [PDF]

, 2018
In the earlier work, a dynamic model for the BOF process based on the multi-zone reaction kinetics has been developed. In the preceding part, the mechanism of manganese transfer in three reactive zones of the converter has been analyzed.
A. Kondratiev, A. Sobandi, A.T. Morales, B.K. Rout, B.K. Rout, B.K. Rout, B.K. Rout, B.T. Chao, Bapin Kumar Rout, C. Zhu, D.S. Kumar, E. Shibata, F. Oeters, F.E. Rote, Frank N. H. Schrama, G. Brooks, Geoffrey Brooks, H. Suito, H. Suito, H. Suito, K. Chiba, K. Xu, L. Holappa, M. Akbar Rhamdhani, M. Ishiguro, M. Ishikawa, M. Meraikib, M. Vargas-Ramirez, M.S. Millman, N. Dogan, N. Dogan, N. Shinozaki, R.J. Pomfret, S. Ban-Ya, S. Jung, S. Kitamura, S. Sabah, S. Spooner, S.C. Duan, S.C. Koria, S.C. Koria, S.C. Koria, S.H. Kim, S.V. Komarov, T. Takaoka, W.L. Daines, Willem van der Knoop, Y. Kawai, Y. Ogasawara, Zushu Li   +49 more
core   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source