| 5531903 |
Fluoride removal from metal sulphate solution and a method of waste utilization |
Cashman R. S. M. Hampton, Victor E. Steiner |
1996-07-02 |
| 5225054 |
Method for the recovery of cyanide from solutions |
— |
1993-07-06 |
| 5135652 |
Method for the solvent extraction of zinc |
— |
1992-08-04 |
| 5110432 |
Method for separating dissolved species by electrodialysis |
— |
1992-05-05 |
| 5084180 |
Method for treating zinc-containing sulfate solution |
— |
1992-01-28 |
| 5013358 |
Method for the recovery of mercury from mercury-containing material |
Donald L. Ball |
1991-05-07 |
| 4976832 |
Method for making arsenic acid |
— |
1990-12-11 |
| 4961909 |
Process for the manufacture of copper arsenate |
— |
1990-10-09 |
| 4915919 |
Recovery of germanium from aqueous solutions by solvent extraction |
David Neudorf, Victor Saleh |
1990-04-10 |
| 4715939 |
Method for removal of monovalent ions from ZnSO.sub.4 electrolyte by electrodialysis |
Donald L. Ball |
1987-12-29 |
| 4636295 |
Method for the recovery of lithium from solutions by electrodialysis |
Donald L. Ball |
1987-01-13 |
| 4525332 |
Recovery of germanium from aqueous solutions |
Donald L. Ball, Godefridus M. Swinkels |
1985-06-25 |