@article {52767,
	title = {Leaching of vanadium and other metals from Athabasca oil sands coke and coke ash},
	volume = {58},
	year = {1979},
	month = {08/1979},
	pages = {5 pages },
	publisher = {Fuel },
	abstract = {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 {\textdegree}C, the vanadium and nickel values in the residual ash are readily susceptible to acid leaching.},
	keywords = {chemistry, coke, metals},
	author = {Jack, Thomas R. and Sullivan, Ernest A. and Zajic, James E.}
}
