| 6576213 |
Method of producing chlorine dioxide |
Helena Falgen, Kaj Kangasniemi |
2003-06-10 |
| 5961803 |
Leaching process |
Roy Hammer-Olsen, Kimona HÄGGSTRÖM |
1999-10-05 |
| 5792315 |
Purifying aqueous effluent from a pulp mill using electro chemical membrane device |
Christin Persson |
1998-08-11 |
| 5653861 |
Electrochemical process |
Bo Håkansson |
1997-08-05 |
| 5624545 |
Production of polysulphide by electrolysis of white liquor containing sulphide |
Bo Håkansson, Maria Norell |
1997-04-29 |
| 5547542 |
Process for purification and recycle of solutions |
— |
1996-08-20 |
| 5523072 |
Process of producing chlorine dioxide |
Helena Falgen, Goran Sundstrom, Maria Norell, Roy Hammer-Olsen |
1996-06-04 |
| 5487881 |
Process of producing chlorine dioxide |
Helena Falgen, Goran Sundstrom, John C. Sokol |
1996-01-30 |
| 5478446 |
Electrochemical process |
Helena Falgen, Goran Sundstrom |
1995-12-26 |
| 5437791 |
Method for purifying process water from pulp manufacture |
Gunnar Goransson, Birgitta Sundblad, Hans-Ake Baltsen |
1995-08-01 |
| 5407547 |
Process for production of acidified process streams |
Roy Hammer-Olsen |
1995-04-18 |