Extraction of Nanosized Cobalt Sulfide from Spent Hydrocracking Catalyst

Table 2

Extraction analysis of Spent catalyst and Extracted metal oxide.

Sample	Wt%
	Co3O4	Mo2O5	Al2O3	% Extraction
Spent catalyst	6.5	16.9	76.6
Co as cobalt sulfide	5.9	—	—	90.7
Mo as molybdenum oxalate	—	13.7	—	81.06
Al as Al2O3	—	—	74.8	97.65