Method of recovering metal and/or oxide thereof in a slurry and tailings obtained from said method
Patent 6953120 Issued on October 11, 2005. Estimated Expiration Date: 
February 8, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 8, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2875896 2951585 3923647 Oxidizing method in froth flotation of minerals Flotation recovery of pyrochlore Froth flotation method for recovering metal values with polyhydroxy fatty acids Process for recovering pyrochlore mineral containing niobium and tantalum Process for the separation of minerals by flotation Ore flotation Production of acid soluble titania InventorsAssigneeApplicationNo. 10071841 filed on 02/08/2002US Classes:209/10, TREATMENT SUBSEQUENT209/12.1, PLURAL, DIVERSE SEPARATING OPERATIONS423/150.6, With electrolytic or magnetic separation423/150.1, Leaching, washing, or dissolving423/150.3, Treatment of iron containing waste mixture423/113, Magnetic separating423/25, Sorbing or magnetic separating423/26, Flotation423/89, Group IVA metal (Ge, Sn, or Pb)423/62, Group VB metal (V, Nb, or Ta)75/711, Using nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.)75/722, Involving organic compound containing metal or organic agent for agglomerating metal75/743, With leaching or dissolving209/166, With modifying agents209/167, Preferential423/69, Group IVB metal (Ti, Zr, or Hf)423/9, Organo-nitrogen solvent209/5Deflocculation and flocculationExaminersPrimary: Bos, StevenForeign Patent References
International ClassesB03C001/00C01G035/00 C01G019/00 C01G003/00 C01G053/00 AbstractA method of recovering metal and/or oxide thereof from a slurry is described. The method involves magnetically separating at least a portion of any magnetic impurities from the slurry and then leaching or dissolving at least a portion of any remaining magnetic impurities in a slurry. At least one chelating agent can then be added to the slurry and the solids can be recovered from the slurry by various separation techniques. The methods of the present invention are particularly useful in the recovery of tantalum and/or oxide thereof especially tantalum and/or oxide thereof having a very fine size.Other References
Field of SearchUsing nonmetallic material which is liquid under standard conditions (e.g., hydrometallurgy, etc.)Involving organic compound containing metal or organic agent for agglomerating metal With leaching or dissolving With electrolytic or magnetic separation Leaching, washing, or dissolving Treatment of iron containing waste mixture Magnetic separating Sorbing or magnetic separating Flotation Group IVA metal (Ge, Sn, or Pb) Group VB metal (V, Nb, or Ta) PLURAL, DIVERSE SEPARATING OPERATIONS Floating TREATMENT SUBSEQUENT |
| ||||||||||||||
