Results 31 to 40 of about 46,223 (311)
Leach Rate Characterization of Solid Radioactive Waste Forms [PDF]
, 1979 Leach rates for a number of proposed radioactive waste forms have been measured. A neutron activation analysis technique has been used exclusively for these measurements. Leach rates as low as 10-9g/cm2d were easily determined. Problems associated with surface area determination, sample preparation and data interpretation are discussed.
Flynn, K.F. +3 more
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Yankuang ceshi, 2018 BACKGROUND The accurate determination of ionic phase rare earths in ion-adsorption rare earths is of great significance for the evaluation of rare earth ore bodies. Ionic phase rare earths are adsorbed on clay minerals in the form of hydroxyl or hydrated
ZHANG Lei +5 more
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Continuous Leaching Test of Ion-type Rare Earth Ore at Different Depths
Kuangchan zonghe liyong, 2023 This is an essay in the field of metallurgical engineering. The ion-type rare earth ore in Ganzhou was treated as the research object. Continuous stirring leaching and column leaching were used to study the leaching of rare earth and impurity elements in
Chao Li +5 more
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Impurity leaching rates of 1000 liter growth tanks [PDF]
, 1999 This memo reports on the analysis of some recent measurements of solution impurity levels in the three KDP and one DKDP Pilot Production 1000 liter growth tanks (Tanks B, C, D, & F). Solution samples were taken on a weekly basis during recent crystal growth runs in each tank and were analyzed by inductively coupled plasma emission spectroscopy (ICP-ES).
Burnham, A +3 more
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A New Process of Extracting Titanium from Vanadium–Titanium Magnetite
Crystals, 2021 A new process of extracting titanium from vanadium–titanium magnetite (VTM) in the Panxi area in Sichuan, China is introduced in this work. Various experiments, including reduction–magnetic separation, leaching and hydrolyzing experiments, are carried ...
Yandong Li, Shuangyin Chen, Huamei Duan
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Frontiers in ChemistryThe immobilization of high-level nuclear waste (HLW) in glass waste matrices provides the key safety function of slowing down radionuclide emissions from an underground disposal site.
Mohammad Hosseinpour Khanmiri +5 more
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Journal of Materials Research and Technology, 2023 Here, a new method of sulfuric acid cyclic leaching was proposed to selectively leach vanadium from the calcification roasting pellets of vanadium titanomagnetite. Cyclic leaching and conventional heap leaching were compared.
Zhixiang Wang +4 more
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Kuangchan zonghe liyong, 2022 A gold in Henan Province is a complex and argillaceous high oxidation gold mines, and it has the characteristics of complex embedment characteristics, high oxidation rate and serious argillization, which lead to the poor beneficiation indexes .
Ning Yang
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Advanced Engineering Materials, EarlyView.Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi +7 more
wiley +1 more source
Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навукStudies have been carried out to determine the main parameters characterizing the quality of cement compounds: 137Cs leaching rate and mechanical strength.
T. G. Leontieva +3 more
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