| 6409980 |
Process and apparatus for treating foundry sludge to recover magnesium |
Carl W. White, Jean Guimont, Denys Pinard |
2002-06-25 |
| 5045290 |
Recovery of pure platinum and palladium |
Bryn Harris, Jean-Pierre Barry, Robert W. Stanley |
1991-09-03 |
| 5028260 |
Recovery of gold from acidic solutions |
Bryn Harris, Jean-Pierre Barry |
1991-07-02 |
| 4743347 |
Production of pure MgCl.sub.2 solution suitable for the production of magnesium metal from an impure magnesite ore or concentrate |
G. Bryn Harris, John G. Peacey |
1988-05-10 |
| 4670052 |
Process for the recovery of gold from a precious metal bearing sludge concentrate |
Robert W. Stanley, G. Bryn Harris |
1987-06-02 |
| 4457897 |
Process for the selective dissolution of cobalt from cobaltite-pyrite concentrates |
Robert W. Stanley, Bryn Harris |
1984-07-03 |
| 4338168 |
Hydrometallurgical treatment of copper-bearing hematite residue |
Robert W. Stanley, Derek G. E. Kerfoot |
1982-07-06 |