Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Shaona Wang"'
Autor:
Zhiqiang Liu, Yeqing Lv, Yaru Wang, Shaona Wang, Oluwasegun Samuel Odebiyi, Biao Liu, Yi Zhang, Hao Du
Publikováno v:
Journal of hazardous materials. 439
V-Cr-bearing reducing slag (VCRS) is considered a hazardous waste that can create ecosystem disasters if handled improperly. It consists of a considerable amount of heavy metals, such as vanadium (V) and chromium (Cr). In this study, we propose a nov
Publikováno v:
Journal of Cleaner Production. 203:873-884
High chromium containing vanadium slag is refractory, and therefore cannot be processed efficiently by traditional roasting method. In this study, a low pressure leaching process using NaOH solution to co-extract both vanadium and chromium has been p
Publikováno v:
Journal of Cleaner Production. 149:206-217
A cleaner method featuring non-salt roasting and ammonium bicarbonate leaching has been studied for the extraction of vanadium from vanadium slag. Compared to the traditional alkaline salt roasting followed by water leaching process, chromium spinel
Publikováno v:
Mineral Processing and Extractive Metallurgy Review. 38:228-237
A cleaner method has been developed for the extraction of vanadium from vanadium slag. Compared to the traditional alkaline salts roasting followed by the water leaching process, in the nonsalt roasting process because no additives are added, the chr
Publikováno v:
Hydrometallurgy. 151:51-55
A novel method that introduces an electrochemical field to enhance the decomposition of vanadium slag in concentrated NaOH solution was proposed. Under the optimal conditions (alkali concentration of 40 wt.%, reaction temperature of 120 degrees C, al
Publikováno v:
Transactions of Nonferrous Metals Society of China. 24:1273-1288
A series of innovative green metallurgical processes using novel reaction media including the NaOH/KOH sub-molten salt media and the NaOH-NaNO3 binary molten salt medium, for the extraction of vanadium and chromium from the vanadium slag have been de
Publikováno v:
Transactions of Nonferrous Metals Society of China. 23:1489-1500
A novel process was developed for the decomposition of vanadium slag using KOH sub-molten salt under ambient pressure, and the effects of reaction temperature, alkali-to-ore mass ratios, particle size, and stirring speed on vanadium and chromium extr
Publikováno v:
AIChE Journal. 59:541-552
A new method using NaOH-NaNO3 binary melts to treat vanadium slag is proposed. Vanadium and chromium can be simultaneously extracted in the leaching processes. Under the optimum reaction conditions, the recovery of vanadium and chromium can reach 93.