1. Assessment of critical metals in waste catalysts (contract J0215042);Inco Research & Development Center, Inc.,1982
2. Cotter's new plant diets on spent catalysts-and recovers Mo, Ni, W, and V Products;Millsap;Eng. and Min. J.,1978
3. Preparation of anhydrous metallic chlorides from waste catalysts;Gravey,1980
4. Process for recovering metals from catalysts for the hydrodesulfurization of hydrocarbons;Welsh,1981