| Patents for C22B 47 - Obtaining manganese (857) |
|---|
| 09/12/2006 | US7105084 Hybrid flow pond |
| 09/06/2006 | CN1273625C Solid state reduction of oxides |
| 08/09/2006 | CN1814830A Method for removing ferrous-iron from manganese sulfate |
| 08/09/2006 | CN1814829A Method for removing heavy-metal ions from manganese sulfate solution |
| 08/01/2006 | CA2394631C Method to control manganese in zinc leach circuits |
| 07/19/2006 | CN1265003C Method for chloridizing roasting and ammonia extraction of silver and manganese products for manganese silver finished ore |
| 06/22/2006 | WO2006064084A1 Process for removing manganese from water |
| 05/30/2006 | US7052528 Method for removal of Mn from cobalt sulfate solutions |
| 05/09/2006 | US7041270 Air pollution control |
| 04/12/2006 | CN1759192A Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 01/25/2006 | CN1724698A Three-layer trough series-parallel slag washing method |
| 01/25/2006 | CN1238534C Method for recovering manganese from low content manganese carbonate raw ore |
| 01/18/2006 | CN1237192C Deep purifying method for manganese sulfate solution |
| 12/07/2005 | EP1602737A1 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 11/29/2005 | CA2281760C Treatment of a solution containing iron salts |
| 11/02/2005 | CN1692169A Treatment method for manganese contained material by hydrometallurgy process |
| 10/12/2005 | CN1681585A Regeneration, pretreatment and precipitation of oxides of manganese |
| 08/11/2005 | WO2005073415A1 Solvent extraction process for separating cobalt and/or manganese from impurities in leach solutions |
| 08/11/2005 | CA2554438A1 Solvent extraction process for separating cobalt and/or manganese from impurities in leach solutions |
| 08/10/2005 | EP1230407A4 Solid state reduction of oxides |
| 06/29/2005 | CN1632143A Method for chloridizing roasting and ammonia extraction of silver and manganese products for manganese silver finished ore |
| 06/09/2005 | US20050120828 Method for removal of Mn from cobalt sulfate solutions |
| 06/02/2005 | WO2005049873A1 Method for recovering catalyst metal from waste of terephthalic acid production |
| 05/25/2005 | CN1620334A Pretreatment and regeneration of oxides of manganese |
| 05/19/2005 | US20050103163 Hydrometallurgical processing of manganese containing materials |
| 05/17/2005 | US6893570 Running water through open pond structure including alkaline steel slag bed and vertical flush flow paths; cleaning mine drainage of large concentrations of manganese |
| 05/06/2005 | WO2005040438A1 Method for processing manganese-containing materials |
| 03/30/2005 | EP1248863B1 Method to control manganese in zinc leach circuits |
| 02/10/2005 | WO2005012582A1 Improved hydrometallurgical processing of manganese containing materials |
| 12/15/2004 | CN1180100C Method for producing manganese carbonate from manganese sulfate in waste mangaese mud |
| 12/14/2004 | CA2291929C Novel microorganisms, microbial symbionts, their culture methods, and methods for treating manganese-containing water using them |
| 10/27/2004 | CN1172756C Innocuous recovering process for waste dry battery |
| 09/23/2004 | WO2004081238A1 Process for producing reduced matal and agglomerate with carbonaceous material incorporated therein |
| 09/22/2004 | EP1458474A1 Pretreatment and regeneration of oxides of manganese |
| 09/22/2004 | CN1167818C Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 09/08/2004 | EP1454376A2 Recycling used electric cells by hydrometallurgical treatment |
| 09/07/2004 | US6787121 Contacting manganese oxide with hydrocarbon gas to carburize and convert to manganese carbide; carbiding |
| 08/19/2004 | US20040161374 Treated manganese ore, process for producing the same, and use thereof |
| 08/05/2004 | US20040149590 Process for producing electrolytic manganese dioxide |
| 06/17/2004 | WO2003021708A3 Recycling used electric cells by hydrometallurgical treatment |
| 06/09/2004 | EP1034136B1 Treatment of a solution containing iron salts |
| 06/01/2004 | CA2301097C Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide or laterite ores |
| 06/01/2004 | CA2301096C Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 05/27/2004 | US20040101457 Leaching, heating, controlling pH and temperature, oxidation |
| 04/22/2004 | WO2004033738A1 Hydrometallurgical processing of manganese containing materials |
| 01/29/2004 | WO2004009232A1 Disassociation processing of metal oxides |
| 01/29/2004 | US20040018936 Heating aqueous oxidizer solution containing manganese compound; absorber to remove target impurities |
| 01/27/2004 | US6682644 Process for producing electrolytic manganese dioxide from geothermal brines |
| 12/11/2003 | WO2003102272A1 Process for producing electrolytic manganese dioxide from geothermal brines |
| 12/11/2003 | US20030226761 Process for producing electrolytic manganese dioxide from geothermal brines |
| 12/02/2003 | US6656247 Selective precipitation of manganese from magnesium-containing solutions |
| 11/27/2003 | US20030219368 Air pollution control |
| 09/18/2003 | WO2003076070A1 Regeneration, pretreatment and precipitation of oxides of manganese |
| 09/10/2003 | CN1120893C Process for recovering Co and Mn Catalyst from oxidized dregs of terephthalic acid |
| 09/04/2003 | WO2003072241A1 Pretreatment and regeneration of oxides of manganese |
| 08/06/2003 | CN1117163C Method for recovery of Co-Mn metal from P-phthalic acid residual liquid |
| 03/13/2003 | WO2003021708A2 Recycling used electric cells by hydrometallurgical treatment |
| 02/26/2003 | EP1012352B1 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide or laterite ores |
| 01/08/2003 | CN1390265A Solid state reduction of oxides |
| 12/11/2002 | CN1095809C Treatment of solution cintaining iron salts |
| 10/16/2002 | EP1248863A1 Method to control manganese in zinc leach circuits |
| 10/09/2002 | CN1373231A Method for smelting middle-or low-carbon ferromanganese by frequency-conversion induction furnace |
| 10/01/2002 | US6458182 Process for producing high-purity Mn materials |
| 09/24/2002 | US6455019 Process for the extraction of copper from a sulphide copper ore or concentrate |
| 08/14/2002 | EP1230407A1 Solid state reduction of oxides |
| 06/25/2002 | US6409979 Selective precipitation of nickel and cobalt |
| 05/21/2002 | US6391270 Method for removing manganese from acidic sulfate solutions |
| 03/14/2002 | US20020031463 Adding solid or freshly slurried caustic calcined magnesium oxide to the solution to precipitate nickel and cobalt and minor amount of manganese in solution, maintaining magnesium oxide in solution for prefered time, separating precipitates |
| 02/26/2002 | US6350605 Cultures of algae and manganese oxidizing bacteria; removing and recycling manganese from water |
| 01/16/2002 | CN1331351A Process for smelting high-grade manganese blocks directly from electrolytic manganese as raw material |
| 01/16/2002 | CN1330985A Innocuous recovering process for waste dry battery |
| 01/10/2002 | US20020004023 Copper sulfide ore is pressure oxidized in presence of halide and sulfate in acid solution producing copper sulfate which is then solvent extracted |
| 01/09/2002 | EP1012351B1 Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 12/05/2001 | EP1159460A1 Filter-press type electrochemical cell |
| 10/25/2001 | US20010033823 Dissolving in sulfuric acid; forming manganese sulfate;electrolytic oxidation to manganese dioxide |
| 10/03/2001 | CN1072265C Method and apparatus for sintering finely divided material containing Mn |
| 09/26/2001 | EP1136577A1 Metal alloy for white gold, and relevant method |
| 09/05/2001 | CN1311340A Method for producing manganese carbonate from manganese sulfate in waste manganese mud |
| 07/05/2001 | WO2001048255A1 Method to control manganese in zinc leach circuits |
| 06/21/2001 | US20010003929 Premelting crude manganese at 1250-1500 degrees C. and then vacuum distilling the melt at 1100-1500 degrees C. in a crucible having interior and exterior crucibles with carbon felt packed in the space between the two crucibles |
| 06/12/2001 | US6245240 Contaminated with soluble manganese salt comprising adding an oxidising agent to convert salt to manganese dioxide, addition of manganese dioxide as seeding agent, seed particles are produced by reacting ferrous sulphate and potassiumm, iron |
| 05/02/2001 | CN1293260A Process for recovering Co and Mn catalyst from oxidized dregs of terephthalic acid |
| 03/29/2001 | WO2001021845A1 Solid state reduction of oxides |
| 01/09/2001 | US6171564 Process for extraction of metal from an ore or concentrate containing nickel and/or cobalt |
| 01/09/2001 | US6171562 Process for the extraction and elimination of deleterious material from natural manganese dioxide and concentrate of manganese dioxide obtained by said process |
| 12/05/2000 | US6156280 Process for removing manganese from organic solutions of oximes and nickel ore treatment process |
| 10/25/2000 | CN1271392A Chloride assisted hydrometallurgical extraction of nickel and cobalt fro m sulphide or laterite ores |
| 09/20/2000 | CN1267338A Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 09/13/2000 | EP1034136A1 Treatment of a solution containing iron salts |
| 08/31/2000 | WO2000050655A1 Nickel ore treatment process |
| 08/31/2000 | WO2000050650A1 Filter-press type electrochemical cell |
| 08/31/2000 | DE19963410A1 New symbiotic microbial association of manganese-oxidizing bacteria and algae useful for recovery of manganese from manganese-containing waters |
| 08/30/2000 | EP1031633A1 Electrochemical cell of the filter press type for the lixiviation of slurries containing valuable metals |
| 06/28/2000 | EP1012352A1 Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide or laterite ores |
| 06/28/2000 | EP1012351A1 Chloride assisted hydrometallurgical extraction of copper from sulphide ore materials |
| 05/16/2000 | US6063160 Method for sintering finely divided material |
| 03/22/2000 | CN1248230A Treatment of solution containing iron salts |
| 12/14/1999 | US6001763 Feeding waste catalyst into pyrometallurgical reaction zone to produce alloy of manganese, cobalt and carbon, liberating off-gases including carbon monoxide, hydrogen, and bromine, forming powder, digesting with acetic acid to form acetates |
| 12/02/1999 | WO1999061186A1 Method for re-manufacturing a cobalt/manganese/bromine catalyst from residue containing used catalyst |
| 08/03/1999 | US5932086 Process for making manganese |