| 4853205 |
Supercritical fluid metal halide separation process |
Alton B. Whitehead |
1989-08-01 |
| 4416693 |
Recovery of titanium metal values |
— |
1983-11-22 |
| 4382082 |
Recovery of cobalt values by absorption from ammoniacal solution |
William C. Laughlin |
1983-05-03 |
| 4328192 |
Ammoniacal nickel leach of laterites |
Francisco J. Corral |
1982-05-04 |
| 4322390 |
Hydrometallurgical recovery of copper, cobalt nickel with reductive and oxidative leaching |
William C. Laughlin |
1982-03-30 |
| 4312841 |
Enhanced hydrometallurgical recovery of cobalt and nickel from laterites |
Pieter D. Rademaker |
1982-01-26 |
| 4280839 |
Recovery of metal values from a metal bearing source of nickel and vanadium |
William C. Laughlin |
1981-07-28 |
| 4276083 |
Recovery of metal values from a metal bearing source of nickel and vanadium |
William C. Laughlin, William Rostoker |
1981-06-30 |
| 4269809 |
Recovery in titanium metal values by solvent extraction |
William C. Laughlin |
1981-05-26 |
| 4237104 |
Flue gas treatment for sulfur dioxide removal |
Peter Urban, John C. Stauter |
1980-12-02 |
| 4225564 |
Purification of rutile |
— |
1980-09-30 |
| 4202863 |
Separation of iron metal values from titanium metal values |
— |
1980-05-13 |
| 4197276 |
Recovery of titanium metal values |
John C. Stauter |
1980-04-08 |