Leaching of vanadium and other metals from Athabasca Oil Sands coke and coke ash
Flexicoker coke derived from Athabasca Oil Sands bitumen contains a number of heavy metals, including vanadium, nickel, iron and titanium, which are susceptible to extraction by hydrometallurgical procedures. The leaching behaviour has been studied as a function of pH, temperature and the presence of salts and redox agents. Greater than 50% extraction of the vanadium, iron and nickel can be achieved by acid leaches, but only about 20% of the titanium can be extracted. Weakly acidic leaches extract about 30% of the nickel content but no significant amounts of the other metals. If cokes derived from Athabasca Oil Sands bitumen by the flexicoking process or the conventional delayed-coker coking process are combusted at temperatures below 500 °C, the vanadium and nickel values in the residual ash are readily susceptible to acid leaching.
https://www.sciencedirect.com/science/article/abs/pii/0016236179900085
- Forums
- ASX - By Stock
- Ann: CNQ enters Nth American lithium market tech-for-equity deal
Leaching of vanadium and other metals from Athabasca Oil Sands...
-
-
- There are more pages in this discussion • 38 more messages in this thread...
You’re viewing a single post only. To view the entire thread just sign in or Join Now (FREE)
Featured News
Add CNQ (ASX) to my watchlist
(20min delay)
|
|||||
Last
23.5¢ |
Change
0.000(0.00%) |
Mkt cap ! $16.97M |
Open | High | Low | Value | Volume |
23.5¢ | 24.0¢ | 22.5¢ | $6.388K | 26.70K |
Buyers (Bids)
No. | Vol. | Price($) |
---|---|---|
2 | 24521 | 23.5¢ |
Sellers (Offers)
Price($) | Vol. | No. |
---|---|---|
24.0¢ | 61700 | 1 |
View Market Depth
No. | Vol. | Price($) |
---|---|---|
2 | 24521 | 0.235 |
1 | 41995 | 0.230 |
1 | 3390 | 0.225 |
1 | 50000 | 0.220 |
1 | 100 | 0.215 |
Price($) | Vol. | No. |
---|---|---|
0.240 | 61700 | 1 |
0.265 | 10000 | 1 |
0.285 | 10000 | 1 |
0.290 | 111125 | 2 |
0.300 | 36526 | 2 |
Last trade - 15.53pm 09/08/2024 (20 minute delay) ? |
Featured News
CNQ (ASX) Chart |