| Patents for C22B 25 - Obtaining tin (604) |
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| 08/27/2009 | WO2009104338A1 Tin, solder alloy, and semiconductor device |
| 08/27/2009 | WO2009104294A1 Lead-free solder alloy and semiconductor device |
| 08/26/2009 | CN101514396A Method for separating tin and stibium from tin-lead anode slime |
| 08/05/2009 | CN100522445C Solder-dross mixture separation method and apparatus |
| 07/15/2009 | EP2078768A1 Method for collection of valuable metal from ito scrap |
| 07/15/2009 | EP2078767A1 Method for collection of valuable metal from ito scrap |
| 06/10/2009 | CN201254599Y Tin slag reduction machine |
| 06/03/2009 | EP2065488A1 Method for collection of valuable metal from ito scrap |
| 06/02/2009 | US7540078 Method for recycling wastes of an electrical appliance |
| 05/26/2009 | US7537741 Gold and silver recovery from polymetallic sulfides by treatment with halogens |
| 05/26/2009 | US7537728 Method for increasing the effectiveness of a component of a material |
| 05/14/2009 | WO2009059489A1 Continuous distilling vacuum oven |
| 05/06/2009 | CN101423898A Recovery method of waste circuit board |
| 04/08/2009 | CN101403044A Oxygen-enriched air smelting method for top-blown submergence smelting furnace for tin concentrate |
| 03/11/2009 | CN100467634C Method for recovering tin from tin-plating wastes |
| 11/19/2008 | CN100434550C Trentment method of tin copper slag |
| 10/02/2008 | WO2008117649A1 Method of recovering valuable metal from scrap containing conductive oxide |
| 09/11/2008 | US20080216605 Method of Depositing Copper in Lead-Free Solder, Method of Granulating (Cux)6Sn5 Compound and Method of Separating the Same, and Method of Recovering Tin |
| 09/04/2008 | US20080210604 Article having a circuit soldered with parts and method for recycling wastes of the same |
| 08/27/2008 | CN201106060Y Tin-slag deacidizing machine |
| 08/26/2008 | CA2185890C Solder recovery |
| 08/20/2008 | CN100412214C Tin dross processor |
| 08/06/2008 | CN101238229A Method of depositing copper in lead-free solder, method of granulating (CuX)6Sn5 compound and method of separating the same, and method of recovering tin |
| 07/02/2008 | CN101213326A High-purity tin or tin alloy and process for producing high-purity tin |
| 06/19/2008 | WO2008072330A1 Apparatus for precipitation/separation of excess copper in lead-free solder |
| 06/11/2008 | CN201071391Y Full-automatic tin dross abstracting machine |
| 06/04/2008 | CN100392121C Method for reclaiming zinc and stannum from zinc stannum alloy by vacuum distillation |
| 05/08/2008 | WO2008053618A1 Method for collection of valuable metal from ito scrap |
| 05/08/2008 | WO2008053616A1 Method for collection of valuable metal from ito scrap |
| 05/08/2008 | CA2667245A1 Method for collection of valuable metal from ito scrap |
| 04/09/2008 | EP1908853A1 METHOD OF DEPOSITING COPPER IN LEAD-FREE SOLDER, METHOD OF GRANULATING (CuX)6Sn5 COMPOUND AND METHOD OF SEPARATING THE SAME, AND METHOD OF RECOVERING TIN |
| 03/19/2008 | EP1900853A1 High-purity tin or tin alloy and process for producing high-purity tin |
| 03/05/2008 | CN201031245Y Full-automatic dross spot separator |
| 02/27/2008 | CN101133172A Method and apparatus for recovering indium from waste liquid crystal display |
| 02/13/2008 | CN101121965A Technique for reclaiming tin by fuming furnace vulcanization and volatilization |
| 01/23/2008 | CN201010685Y Tin dross handler |
| 01/16/2008 | CN101104883A Method for reclaiming indium and tin from ITO waste material by pickling-vulcanization deposition combined technique |
| 12/05/2007 | CN100352956C Side-blown submerged smelting bath smelting process |
| 11/07/2007 | CN101067168A Method for recovering tin from tin-plating wastes and special heating turnace thereof |
| 06/27/2007 | CN1986852A Method and device for preparing pure nickel and pare cobalt from ore |
| 05/30/2007 | CN1318801C Secondary burning method and device in top blow sinking smelting process |
| 05/16/2007 | CN1962903A 锡渣处理机 Dross processor |
| 05/16/2007 | CN1962163A Process for preparing electrowelding wire by reduction and purification of waste tin ash |
| 04/19/2007 | WO2007042611A1 A method for precipitating metal oxides from an aqueous waste solution |
| 03/07/2007 | CN1924037A Method of comprehensive utilizing tin-zinc containing magnetic concentrate |
| 02/08/2007 | WO2007015392A1 Method and apparatus for recovering indium from waste liquid crystal display |
| 02/01/2007 | WO2007013433A1 METHOD OF DEPOSITING COPPER IN LEAD-FREE SOLDER, METHOD OF GRANULATING (CuX)6Sn5 COMPOUND AND METHOD OF SEPARATING THE SAME, AND METHOD OF RECOVERING TIN |
| 01/11/2007 | WO2007004394A1 High-purity tin or tin alloy and process for producing high-purity tin |
| 11/15/2006 | CN1861818A Side-blown submerged smelting bath smelting process |
| 10/11/2006 | CN1279193C High iron slag type formulation in top blowing sinking smelting furnace tin-making process |
| 09/27/2006 | CN1837388A Technique for narrow-width control of alloy constituent in production of super-thin aluminium foil by cast-rolling stock |
| 09/27/2006 | CN1837383A Method for reclaiming zinc and stannum from zinc stannum alloy by vacuum distillation |
| 08/08/2006 | US7087100 Heating a metal compound in a hydrocarbon to convert said metal compound to a solid nanosized member; separating the hydrocarbon from the solid nanosized member; and recovering the solid nanosized member. |
| 07/12/2006 | CN1263875C Method for recovering tin from tin plating, dipping and welding and apparatus thereof |
| 06/14/2006 | CN1786226A Trentment method of tin copper slag |
| 06/07/2006 | EP1465746B1 Solder-dross mixture separation method and apparatus |
| 05/31/2006 | CN1780711A Solder-dross mixture separation method and apparatus |
| 04/19/2006 | CN2773096Y Tin slag reducer |
| 12/28/2005 | CN1233857C Decoppering refining agent in use for fire refining of non-ferrous metal with low melting point and technical procedure |
| 12/27/2005 | US6979429 Contacting the metal containing material with a mineral acid and a complexing agent to digest ore residue under temperature and pressure conditions suitable to form a (complexing agent)/(fluoride) complex and solubilize; separating |
| 10/19/2005 | CN1683574A High iron slag type formulation in top blowing sinking smelting furnace tin-making process |
| 10/05/2005 | CN1676639A Method for producing white arsenic using high-surfur high-arsenic-tin ore tailing |
| 09/28/2005 | CN1673416A Method for producing indium-containing aqueous solution |
| 09/27/2005 | US6948650 Dross removal and solder reclamation improvements |
| 09/22/2005 | WO2004105989A3 Dross removal and solder reclamation improvements |
| 09/09/2005 | WO2005082797A1 Method for removing impurities from molten tin |
| 07/21/2005 | US20050155870 Method for producing indium-containing aqueous solution |
| 04/27/2005 | CN1199535C Soldering apparatus, and separating agent and method for separating solder and solder oxides |
| 04/13/2005 | CN1197440C Article having a circuit soldered with parts and method for recycling wastes of the same |
| 03/08/2005 | US6863873 Process to produce simonkolleite, zinc oxide and zinc hydroxide |
| 02/16/2005 | CN1189579C Method for separating stibium from stibilated coarse tin (CN) |
| 02/09/2005 | CN1575890A Method for propagating vibration into a conductive fluid and method for solidifying a melted metal using the same propagating method of vibration |
| 02/02/2005 | CN1187138C Waste recovery method of circuit products with welded parts |
| 01/13/2005 | US20050005736 Controlling concentration; solder alloy melt |
| 12/09/2004 | WO2004105989A2 Dross removal and solder reclamation improvements |
| 10/27/2004 | CN1540007A Decoppering refining agent in use for fire refining of non-ferrous metal with low melting point and technical procedure |
| 10/13/2004 | EP1465746A1 Solder-dross mixture separation method and apparatus |
| 08/03/2004 | US6770249 Hydrometallurgical process utilizing an atmospheric calcium chloride leach to selectively recover from various metal feed stocks |
| 04/13/2004 | US6719144 Method of separating oxide from dross, device for separating oxide from dross, and jet solder tank |
| 04/08/2004 | US20040065428 Method for propagating vibration into a conductive fluid and method for solidifying a melted metal using the same propagating method of vibration |
| 03/24/2004 | CN1143002C Method for extracting anions of IVB to VIII metals using alkyl-substituted 1,3-diaminopropanes |
| 03/23/2004 | US6709641 Using dialkyl-substituted 1,3-diaminopropanes; high loading capacity |
| 03/03/2004 | EP1119646B1 Liquid carton waste material recycling process and apparatus |
| 01/22/2004 | US20040011851 Dross removal and solder reclamation improvements |
| 01/14/2004 | EP1380370A2 Method for propagating vibration into a conductive fluid and method for solidifying a melted metal using the same propagating method of vibration |
| 01/07/2004 | EP1378309A2 Soldering apparatus, and agent and method for seperating solder and solder oxides |
| 12/23/2003 | US6666370 Solder-dross mixture separation method and apparatus |
| 11/04/2003 | US6641712 Process for the recovery of tin, tin alloys or lead alloys from printed circuit boards |
| 10/28/2003 | US6638436 Method and arrangement for regenerating a contaminated metal bath |
| 09/11/2003 | US20030170158 Method for solubilizing metal values |
| 07/31/2003 | WO2003061893A1 Solder-dross mixture separation method and apparatus |
| 07/24/2003 | US20030136816 Solder-dross mixture separation method and apparatus |
| 07/02/2003 | EP1119645B1 Process and apparatus for recovering metal material from waste material |
| 06/04/2003 | EP0771370B1 Process for electrochemically dissolving a metal such as zinc or tin |
| 05/28/2003 | CN1420185A Obtaining product by solubilizing metal component from Ta-Nb metal ore contg. insoluble fluoride |
| 05/21/2003 | EP1159467B1 Process for the recovery of tin, tin alloys or lead alloys from printed circuit boards |
| 04/09/2003 | EP1151646B1 Article having a circuit soldered with parts and method for recycling wastes of the same |
| 03/26/2003 | EP1144699B1 Method for extracting anions of ivb to viii metals using alkyl-substituted 1,3-diaminopropanes |
| 12/25/2002 | CN1097094C Method for solubilization of metal component from non-soluble fluoride-contg. Ta-Nb ore |
| 12/11/2002 | CN1383956A Welding flux and welding slag separator |