| 9802832 |
Process and apparatus for obtaining material of value from a bauxite residue |
Horst Schmidt-Bischoffshausen |
2017-10-31 |
| 9199856 |
Method for obtaining magnetite |
Valentin Rohm |
2015-12-01 |
| 7863471 |
Process for the transesterification of esters |
Valentin Rohm |
2011-01-04 |
| 7863480 |
Process for alkaline hydrolysis of carboxylic acid derivatives to carboxylic acids |
Valentin Rohm |
2011-01-04 |
| 6569224 |
Hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate |
Derek G. E. Kerfoot, Bruce Love, Avinash Singhal |
2003-05-27 |
| 6428604 |
Hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate |
Derek G. E. Kerfoot, Bruce Love, Avinash Singhal |
2002-08-06 |
| 5820966 |
Removal of arsenic from iron arsenic and sulfur dioxide containing solutions |
Yoshiaki Okita, Reichel A. Tenbergen, Brian Charles Blakely, Justin Raskauskas |
1998-10-13 |
| 5759512 |
Regeneration of dithiophosphorus acid metal extractants |
William A. Rickelton, Indje Ognianov Mihaylov, Bruce Love, Pak Kuen Louie |
1998-06-02 |
| 5575981 |
Method for acidic leaching of lateritic ores |
— |
1996-11-19 |
| 5535992 |
Apparatus and method for acidic leaching of lateritic ores |
— |
1996-07-16 |
| 5447552 |
Process for the extraction and separation of nickel and/or cobalt |
Indje Ognianov Mihaylov, Steve W. Laundry, Cuong V. Luong |
1995-09-05 |
| 5378262 |
Process for the extraction and separation of nickel and/or cobalt |
Indje Ognianov Mihaylov, Steve W. Laundry, Cuong V. Luong |
1995-01-03 |
| 5126116 |
Method for forming copper arsenate |
Vladimir J. Zatka, Steven W. Laundry |
1992-06-30 |
| 4764353 |
Leaching of uranium ore |
Juraj Babjak |
1988-08-16 |
| 4657746 |
Scrubbing of sulfur dioxide with lime slags |
James A. Bell |
1987-04-14 |