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2020
1 Broggi, Andrea; Ringdalen, Eli; Tangstad, Merete.
Characterization, mechanism of formation and thermodynamics of SiC-SiOx core-shell nanowires. Results in Materials 2020
NTNU SINTEF Untitled
 
2 Jusnes, Karin Fjeldstad; Ringdalen, Eli; Tangstad, Merete.
The effects of cristobalite formation on disintegration of quartz. Materials at High Temperature 2020
NTNU SINTEF Untitled
 
3 Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli.
Phase transformations in quartz used in silicon and ferrosilicon. Metallurgical and materials transactions. B, process metallurgy and materials processing science 2020
NTNU SINTEF Untitled
 
2019
4 Broggi, Andrea; Ringdalen, Eli; Tangstad, Merete.
Evolution of SiOx shell layers on SiC-SiOx core-shell nanowires. International Conference on Silicon Carbide and Related Materials; 2019-09-29 - 2019-10-04
NTNU SINTEF Untitled
 
5 Broggi, Andrea; Tangstad, Merete; Ringdalen, Eli.
Characterization of a Si-SiO2 Mixture Generated from SiO(g) and CO(g). Metallurgical and materials transactions. B, process metallurgy and materials processing science 2019 ;Volum 50.(6) s. 2667-2680
NTNU SINTEF Untitled
 
6 Cheraghi, Alireza; Yoozbashizadeh, Hossein; Ringdalen, Eli; Safarian, Jafar.
Kinetics and Mechanism of Low-Grade Manganese Ore Reduction by Natural Gas. Metallurgical and materials transactions. B, process metallurgy and materials processing science 2019 ;Volum 50.(4) s. 1566-1580
NTNU SINTEF Untitled
 
7 Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli.
The effects of cristobalite formation on disintegration of quartz. The 1st European Conferance on Silica and Silica Based Materials; 2019-10-07 - 2019-10-10
NTNU SINTEF Untitled
 
8 Ringdalen, Eli.
Biocarbon Research and test centre. Biocarbon in metal production; 2019-04-01 - 2019-04-01
SINTEF Untitled
 
9 Ringdalen, Eli.
KPN Reduced CO2 Overview. Pretreatment of Mn ores; 2019-02-11 - 2019-02-11
SINTEF Untitled
 
10 Ringdalen, Eli.
KPN Reduced CO2 Overview to Eramet. Eramet Internal meeting; 2019-09-05 - 2019-09-05
SINTEF Untitled
 
11 Ringdalen, Eli.
Pretreatment of manganese ores as a mean to reduce CO2 emissions. INTERNATIONAL PROCESS METALLURGY SYMPOSIUM; 2019-11-05 - 2019-11-06
SINTEF Untitled
 
12 Ringdalen, Eli; Bao, Sarina; Tveit, Halvard; Nordnes, Elisabeth.
Melting properties of quartz and their effect on industrial Si and FeSi production. The International Committee for Study of Bauxite, Alumina & Aluminium Conference Proceedings 2019
NTNU SINTEF Untitled
 
13 Ringdalen, Eli; Bao, Sarina; Tveit, Halvard; Nordnes, Elisabeth.
Melting properties of quartz and their effect on industrial Si and FeSi production. International Congress & Exhibition "Non-ferrous Metals and Minerals + ISCOBA conference; 2019-09-16 - 2019-09-19
NTNU SINTEF Untitled
 
14 Tangstad, Merete; Safarian, Jafar; Bao, Sarina; Ringdalen, Eli; Valderhaug, Aasgeir.
Reaction Rates of 2SiO2+SiC=3SiO+CO in Pellets at Elevated Temperatures. Aspects in Mining & Mineral Science (AMMS) 2019 ;Volum 3.(2)
NTNU SINTEF Untitled
 
2018
15 Dodelin, Paul; Ringdalen, Eli.
TiC formation in Silicomanganese production- Internship report – ENSICAEN 2017-2018. Caen, France: ENSI Caen 2018 33 s.
SINTEF Untitled
 
16 Edfeldt, Hanne; Nordnes, Elisabeth; Ringdalen, Eli.
Permeability Tests of Packed Bed in the Silicon Production Process - NTNU Student report. : NTNU 2018 24 s.
NTNU SINTEF Untitled
 
17 Folstad, Marit Buhaug; Tangstad, Merete; Ringdalen, Eli; Fredriksli, R; Dalum, Synnøve.
Tapping procedures in silicon production, and the role of female tapping operators. Tapping Conference; 2018-10-14 - 2018-10-17
NTNU SINTEF Untitled
 
18 Johansen, Stein Tore; Ringdalen, Eli.
Reduced metal loss to slag in HC FeCr production - by redesign based on mathematical modelling. Fusrnace Tapping 2018; 2018-10-14 - 2018-10-17
SINTEF Untitled
 
19 Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli.
Cracks, Disintegration and Phases Transformations in Quartz. Silicon for the Chemical and Solar Industry XIV; 2018-06-11 - 2018-06-14
NTNU SINTEF Untitled
 
20 Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli.
Phase Transformations from Quartz to Cristobalite. I: Extraction 2018- Proceedings of the First Global Conference on Extractive Metallurgy. Springer Nature 2018 ISBN 978-3-319-95021-1. s. 717-727
NTNU SINTEF Untitled
 
21 Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli.
Phase Transformations from Quartz to Cristobalite. Extraction 2018 - Hays symposium; 2018-08-26 - 2018-08-29
NTNU SINTEF Untitled
 
22 Jusnes, Karin Fjeldstad; Tangstad, Merete; Ringdalen, Eli.
Shock Heating of Quartz used in Silicon and Ferrosilicon Production. Infacon XV; 2018-02-25 - 2018-02-28
NTNU SINTEF Untitled
 
23 Ksiazek, Michal Tomasz; Ringdalen, Eli; van der Eijk, C; Høgaas, Per Helge.
IRON REMOVAL FROM BAUXITE ORES. Bauxite Residue Valorisation and Best Practices Conference BR2018; 2018-05-07 - 2018-05-10
SINTEF Untitled
 
24 Ksiazek, Michal Tomasz; Tangstad, Merete; Ringdalen, Eli.
The rapid Si-furnace excavation - an unique chance to investigate the interior of the furnace. INFACON XV; 2018-02-25 - 2018-02-28
NTNU SINTEF Untitled
 
25 Ksiazek, Michal Tomasz; Tangstad, Merete; Ringdalen, Eli; Grådahl, Svend; Hustad, Hanne Mette; Holtan, Joakim; Nymoen, Andreas Biseth; Kaukonen, Saku.
Measurement of metal temperature during tapping of an industrial FeSi furnace. Furnace tapping conference; 2018-10-14 - 2018-10-17
NTNU SINTEF Untitled
 
26 Li, Fei; Tangstad, Merete; Ringdalen, Eli.
Carbothermal reduction of quartz and carbon pellets at elevated temperatures. Metallurgical and materials transactions. B, process metallurgy and materials processing science 2018 ;Volum 49.(3) s. 1078-1088
NTNU SINTEF Untitled
 
27 Ribeiro, Tiago; Neto, João Batista Ferreira; Takano, Cyro; Kolbeinsen, Leiv; Ringdalen, Eli.
Kinetics of simultaneous methane reforming and iron carburization in direct reduction.. 176th ISIJ Meeting, CAMP-ISIJ; 2018-09-19 - 2018-09-21
SINTEF NTNU Untitled
 
28 Ribeiro, Tiago; Neto, João Batista Ferreira; Takano, Cyro; Kolbeinsen, Leiv; Ringdalen, Eli.
Reforma de Metano e Carburação de Ferro nas Condições dos Processos de Redução Direta. ABMWeek 2018, 48th Ironmaking and Raw Materials Seminar; 2018-10-02 - 2018-10-04
SINTEF NTNU Untitled
 
29 Ribeiro, Tiago; Neto, João Batista Ferreira; Takano, Cyro; Kolbeinsen, Leiv; Ringdalen, Eli.
Kinetics of simultaneous methane reforming and iron carburization in direct reduction.. ISIJ International 2018 ;Volum 31.
NTNU SINTEF Untitled
 
30 Ringdalen, Eli.
Kvinesdal excavation. Controlled tapping møte; 2018-09-19 - 2018-09-19
SINTEF Untitled
 
31 Ringdalen, Eli.
Permeability measurements. Controlled tapping møte; 2018-09-19 - 2018-09-19
SINTEF Untitled
 
32 Ringdalen, Eli.
Quartz for silicon production – opportunities and challenges. CRU- Silicon Market Forum 2018; 2018-11-13 - 2018-11-14
SINTEF Untitled
 
33 Ringdalen, Eli.
SiC structures and SiC transformations in industrial Si-production. Silicon for the Chemical and Solar Industry XIV; 2018-06-11 - 2018-06-14
SINTEF Untitled
 
34 Ringdalen, Eli.
TiC formations in SiMn systemts. Controlled tapping møte; 2018-09-19 - 2018-09-19
SINTEF Untitled
 
35 Ringdalen, Eli; Kolbeinsen, Leiv.
Pretreatment of Manganese ores with methane. Extraction 2018, Hays Symposium; 2018-08-26 - 2018-08-29
NTNU SINTEF Untitled
 
36 Ringdalen, Eli; Ksiazek, Michal Tomasz.
Excavation of SiMn-Furnace. Furnace Tapping 2018,; 2018-10-14 - 2018-10-17
SINTEF Untitled
 
37 Ringdalen, Eli; Solheim, Ingeborg.
Study of SiMn process in a pilot furnace. Infacon XV: International Ferro-Alloys Congress; 2018-02-25 - 2018-02-28
SINTEF Untitled
 
38 Ringdalen, Eli; Solheim, Ingeborg; Anacleto, N.M; Sørensen, Bjørn Eske; Ostrovski, Oleg.
Reduction of chromium oxide and ore by methane-containing gas mixtures. Infacon XV: International Ferro-Alloys Congress; 2018-02-25 - 2018-02-28
NTNU SINTEF Untitled
 
39 Steenkamp, Joalet Dalene; BAM, WG; Ringdalen, Eli; Mushwana, M; Hockaday, S.A.C; Sithole, N.A.
Working towards an increase in manganese ferroalloy production in South Africa – a research agenda. The Southern African Journal of Mining and Metallurgy 2018 ;Volum 118.(6) s. 645-655
SINTEF Untitled
 
40 Steenkamp, Joalet Dalene; Ringdalen, Eli; Bam, W. G; Mushwana, M; Hockaday, S.A.C; Sithole, N. A..
Working towards an increase in manganese ferro-alloy production in South Africa – a research agenda. Infacon XV: International Ferro-Alloys Congress,; 2018-02-25 - 2018-02-28
SINTEF Untitled
 
41 Tangstad, Merete; Beukes, Paul; Steenkamp, Joalet Dalene; Ringdalen, Eli.
Chapter 14: Coal-based reducing agents in ferroalloys and silicon production. I: New Trends in Coal Conversion Combustion, Gasification, Emissions, and Coking,. Woodhead Publishing Limited 2018 ISBN 978-0-08-102202-3. s. 405-438
NTNU SINTEF Untitled
 
42 van Staden, Yolindi; Beukes, Johan Paul; van Zyl, Pieter Gideon; Ringdalen, Eli; Tangstad, Merete; Kleynhans, Ernst L.J.; Bunt, John Reginald.
Damring formation during rotary kiln chromite pre-reduction: Effects of pulverized carbonaceous fuel selection and partial pellet melting. Metallurgical and materials transactions. B, process metallurgy and materials processing science 2018 ;Volum 49.(6) s. 3488-3503
NTNU SINTEF Untitled
 
43 van Staden, Yolindi; Beukes, Paul; van Zyl, Peter; Ringdalen, Eli; Tangstad, Merete; Kleynhans, Ernst L.J.; Bunt, John Reginald.
Dam-ring formation in chromite pre-reduction rotary kilns – influence of pulverised carbonaceous fuel and ore composition. Infacon 15; 2018-02-25 - 2018-02-28
NTNU SINTEF Untitled
 
44 Zhang, Guangqing; Smith, Nicholas Albert; Wallin, Maria; Ringdalen, Eli.
The Consumption of Carbonaceous Materials in Steelmaking and the Potential of Replacement by Biocarbon. Trondheim: SINTEF Memo 2018 23 s.
SINTEF NTNU Untitled
 
45 Øverlid, Sigurd; Ringdalen, Eli.
Investigation of samples from an excavation of a SiMn furnace-NTNU student summerjob report. Trondheim: NTNU 2018 127 s.
NTNU SINTEF Untitled
 
2017
46 Dalaker, Halvor; Ringdalen, Eli; Kolbeinsen, Leiv; Mårdalen, Jostein.
Road-map for gas in the Norwegian metallurgical industry: greater value creation and reduced emissions. Trondheim: SINTEF/NTNU 2017 27 s.
NTNU SINTEF Untitled
 
47 Dalaker, Halvor; Ringdalen, Eli; Kolbeinsen, Leiv; Mårdalen, Jostein.
Veikart for gass i metallindustrien - Økt verdiskaping og reduserte utslipp. Trondheim: SINTEF/NTNU 2017 24 s.
NTNU SINTEF Untitled
 
48 Ksiazek, Michal Tomasz; Ringdalen, Eli; Tangstad, Merete.
Excavations of the Si/FeSi furnaces: comparison of furnace 1 and 4 in Wacker. SFI Høstmøte 2017; 2017-11-07 - 2017-11-08
NTNU SINTEF Untitled
 
49 Ksiazek, Michal Tomasz; Ringdalen, Eli; Tangstad, Merete.
Furnace excavations:Comparison of results from FeSi 75% and FeSi 50%. Meeting with industry (Finnfjord); 2017-01-16 - 2017-01-18
NTNU SINTEF Untitled
 
50 Ribeiro, Tiago; Neto, João Batista Ferreira; Poço, João Guilherme Rocha; Takano, Cyro; Kolbeinsen, Leiv; Ringdalen, Eli.
REFORMA CATALÍTICA DE METANO PARA REDUÇÃO DIRETA DE FERRO. Annual Conference of the Brazilian Association for Metallurgy; 2017-10-02 - 2017-10-06
NTNU SINTEF Untitled
 
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