Zobrazeno 1 - 10
of 38
pro vyhledávání: '"William, Tongamp"'
Autor:
Shibayama, Atsushi, Takasaki, Yasushi, William, Tongamp, Yamatodani, Atsushi, Higuchi, Yasunori, Sunagawa, Shigeru, Ono, Eiki
Publikováno v:
In Journal of Hazardous Materials 2010 181(1):1016-1023
Publikováno v:
Hydrometallurgy. 137:92-100
A process to co-treat electronic and pyrite (FeS2) wastes in an autoclave (high pressure and temperature) under oxygen gas atmosphere for extraction of metals from electronic waste was investigated in this study. The electronic waste sample contained
Publikováno v:
Journal of Material Cycles and Waste Management. 15:171-178
This paper describes a hydrometallurgical process for recovering neodymium (Nd) and dysprosium (Dy) from a magnetic waste sludge generated from the Nd–Fe–B(–Dy) manufacturing process. Phase analysis by XRD study revealed Nd(OH)3 and Fe2O3 as ma
Publikováno v:
MATERIALS TRANSACTIONS. 53:707-715
A flotation pre-treatment study for the separation of enargite (Cu3AsS4) from chalcopyrite (CuFeS2) ores of different origins was investigated in this work. The copper ore bearing enargite mineral contained 5.87mass% As and 16.50mass% Cu while the ch
Publikováno v:
Powder Technology. 212:354-358
A milling process to reduce kaolin to amorphous phase in the presence of KH2PO4 or NH4H2PO4 and allow mechanochemical (MC) reaction for incorporation of KH2PO4 and NH4H2PO4 into the kaolin structure was investigated in this work. Mixtures of kaolin a
Autor:
William Tongamp, Sachihito Nitta, Jan Pana Rabatho, Tetsuo Imai, Yasushi Takasaki, Atsushi Shibayama
Publikováno v:
MATERIALS TRANSACTIONS. 52:746-752
In some (Cu-Mo) mines around the world, Mo recovery is low due to poor liberation, fine dissemination in gangue minerals, and losses of Cu and Mo to tailing streams. Studies to recover these materials as a new resource will increasingly become an att
Autor:
Jan Pana Rabatho, William Tongamp, Junji Kato, Atsushi Shibayama, Kazutoshi Haga, Yasushi Takasaki
Publikováno v:
Resources Processing. 58:14-21
Application of flotation for upgrading and recovery of copper (Cu) and molybdenum (Mo) contained in flotation tailings from a copper/molybdenum mine was investigated in this study. The sample contained mainly pyrite (FeS2) and quartz (SiO2) as domina
Publikováno v:
Hydrometallurgy. 105:42-46
This study investigates the feasibility of a precipitation process for the removal of arsenic from highly alkaline enargite leaching solutions in the Cu3AsS4–NaHS–NaOH system and regeneration of the leaching reagents. The main objective was to re
Publikováno v:
High Temperature Materials and Processes. 29:435-446
Publikováno v:
Fuel Processing Technology. 91:272-276
A two-step process to generate H 2 gas; first by milling polystyrene (PS) or poly(vinyl alcohol) (PVA) with Ni(OH) 2 and Ca(OH) 2 , followed by heating of the milled product in the second-step was performed in this work. Polymer and hydroxide mixture