Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Sverre Rolseth"'
Autor:
Sverre Rolseth, Jomar Thonstad
Publikováno v:
Journal of Siberian Federal University. Chemistry. 10:30-36
Autor:
Eirin Kvalheim, Ana Maria Martinez, Henrik Gudbrandsen, Geir Martin Haarberg, Sverre Rolseth, Karen Sende Osen
Publikováno v:
ECS Transactions. 50:63-72
Iron metal is traditionally produced by carbothermic reduction in a blast furnace; an effective, but capital and energy intensive method that produces large amounts of CO2, SO2 and a variety of other contaminating byproducts. An alternative route to
Publikováno v:
ECS Transactions. 50:251-261
For the application of inert, oxygen-evolving anodes in low-temperature electrolytes for aluminum electrolysis, the dissolution rate of the raw material alumina may be critical. It may then be desirable to maintain a content of excess alumina in the
Publikováno v:
Essential Readings in Light Metals ISBN: 9783319481555
Essential Readings in Light Metals: Aluminum Reduction Technology, Volume 2
Essential Readings in Light Metals: Aluminum Reduction Technology, Volume 2
The anodic overvoltage in aluminum electrolysis represents 10 – 15% of the total cell voltage, and possible means of reducing the overvoltage should then be studied. In the present work the anodic overvoltage was measured in two prebake cells, 180
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be193c027afa5d098ec125379287f20b
https://doi.org/10.1007/978-3-319-48156-2_23
https://doi.org/10.1007/978-3-319-48156-2_23
Publikováno v:
Essential Readings in Light Metals ISBN: 9783319481555
Essential Readings in Light Metals: Aluminum Reduction Technology, Volume 2
Essential Readings in Light Metals: Aluminum Reduction Technology, Volume 2
Thermal effects caused by anode changing in prebake alumina reduction cells were studied by temperature measurements using thermocouples located at different positions inside the anodes. Anode changing caused a temperature reduction in the nearest ne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f1daae3453d1f31fcad30c57a5eec41
https://doi.org/10.1007/978-3-319-48156-2_83
https://doi.org/10.1007/978-3-319-48156-2_83
Autor:
Trond Harald Bergstrøm, Asbjørn Solheim, Ole Sigmund Kjos, Egil Skybakmoen, Henrik Gudbrandsen, Sverre Rolseth
Publikováno v:
REWAS 2016 ISBN: 9783319486185
At present, recycled aluminium is “diluted” by primary metal to keep the impurity concentrations at acceptable levels. Future increase in recycling will require a new process for efficient removal of all impurities, including noble elements, from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72761ea5051e7447e5f64261b79b7fac
https://doi.org/10.1007/978-3-319-48768-7_37
https://doi.org/10.1007/978-3-319-48768-7_37
Autor:
Ana Maria Martinez, Henrik Gudbrandsen, Geir Martin Haarberg, Sverre Rolseth, Mari Juel, Karen Sende Osen
Publikováno v:
ECS Transactions. 33:429-438
The objective of this work was to study the electrodeposition of silicon in molten KF-LiF (eut)-K2SiF6 (5 mol%) on Ag and Si substrates at 550oC and 800oC. In addition electrochemical studies of the system were performed on silver, tungsten and glass
Electrocatalytic Formation and Inactivation of Intermetallic Compounds in Electrorefining of Silicon
Publikováno v:
Metallurgical and Materials Transactions B. 41:752-757
Silicon for solar cell purposes is today produced by an energy intensive process exhibiting high irreversible thermodynamic energy losses. The purity of the product; 99,9999999 pct (9N), far exceeds what is generally accepted to be the requirements f
Autor:
Sverre Rolseth, Espen Olsen
Publikováno v:
Metallurgical and Materials Transactions B. 41:295-302
To make electrical energy from photovoltaic (PV) silicon (Si) solar cells competitive, the cost in each of the PV manufacturing process steps has to be diminished. Today, high-purity Si is produced by an energy-intensive process exhibiting high irrev
Autor:
Stanislaw Pietrzyk, Shu-lan Wang, Geir Martin Haarberg, Tsuyoshi Murakami, Sverre Rolseth, Eirin Kvalheim
Publikováno v:
ECS Transactions. 3:341-345
The electrochemical behaviour of dissolved Fe2O3 and the electrodeposition of iron in molten CaCl2-CaF2 (80-20 mol %) and other mixed chloride/fluoride electrolytes was studied at 827 {degree sign}C and 890 {degree sign}C by cyclic voltammetry, chron