| Patents for B03D 103 - Specified materials treated by the flotation agents (530) |
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| 02/08/2006 | CN1730161A Collophanite direct flotation and reverse flotation technique |
| 01/18/2006 | CN1721080A Cassiterite ore separation method |
| 12/01/2005 | US20050263442 Collecting agent for sulphidic ores, the production and use thereof |
| 11/30/2005 | EP1528957B1 Use of a collecting agent for sulphidic ores and method of its production |
| 10/12/2005 | CN1680042A Stepped flotation of tin, lead and zinc sulfide mine |
| 09/07/2005 | CN1665598A Collecting agent for sulphidic ores |
| 05/11/2005 | EP1528957A2 Collecting agent for sulphidic ores |
| 05/13/2004 | WO2004014562A3 Collecting agent for sulphidic ores, the production and use thereof |
| 02/19/2004 | WO2004014562A2 Collecting agent for sulphidic ores, the production and use thereof |
| 06/13/2001 | EP0929362B1 Compositions and methods for ore beneficiation |
| 05/03/2000 | EP0602182B1 Apparatus and method for deinking waste paper pulp |
| 11/09/1999 | CA2124359C 2-mercapto-benzoxazole derivatives as collectors for the selective flotation of metal ores |
| 10/06/1999 | CN1230905A Compositions and method for ore beneficiation |
| 07/27/1999 | US5929408 Compositions and methods for ore beneficiation |
| 07/21/1999 | EP0929362A1 Compositions and methods for ore beneficiation |
| 04/02/1998 | WO1998013142A1 Compositions and methods for ore beneficiation |
| 04/02/1998 | CA2266902A1 Compositions and methods for ore beneficiation |
| 04/09/1996 | US5505310 2-mercapto-benzoxazole derivatives as collectors for the selective flotation of metal ores |
| 08/23/1995 | EP0615467B1 2-mercapto-benzoxazole derivatives as collectors for the selective flotation of metal ores |
| 05/02/1995 | CA1335466C Polymeric sulfide mineral depressants |
| 02/22/1995 | EP0602182A4 Improved apparatus and method for deinking waste paper pulp. |
| 09/21/1994 | EP0615467A1 2-mercapto-benzoxazole derivatives as collectors for the selective flotation of metal ores. |
| 06/22/1994 | EP0602182A1 Improved apparatus and method for deinking waste paper pulp |
| 05/10/1994 | US5310459 Apparatus and method for deinking waste paper pulp |
| 09/07/1993 | US5242585 Apparatus and method for deinking waste paper pulp |
| 06/10/1993 | WO1993010903A1 2-mercapto-benzoxazole derivatives as collectors for the selective flotation of metal ores |
| 03/18/1993 | WO1993004784A1 Improved apparatus and method for deinking waste paper pulp |
| 03/18/1993 | CA2117071A1 Improved apparatus and method for deinking waste paper pulp |
| 09/10/1991 | CA2037883A1 Process for the selective flotation of phosphorus minerals |
| 02/20/1990 | US4902765 Allyl thiourea polymers |