| Patents for C22B 41 - Obtaining germanium (284) |
|---|
| 09/28/2011 | CN102199706A Method for comprehensively recovering valuable metal in diode core |
| 09/21/2011 | CN102191391A Method for extracting germanium from high-impurity low-grade complex zinc oxide powder |
| 09/14/2011 | CN102181653A Method for recovering germanium from germanium-containing smoke dust |
| 09/14/2011 | CN102181652A Germanium leaching enrichment method for germanium-containing soot of power plant |
| 09/14/2011 | CN102181649A Method for recovering germanium from germanium extraction residues |
| 09/07/2011 | CN101824534B Method for extracting indium and germanium from pyrometallurgical crucible residues by whole-wet method |
| 08/24/2011 | CN201942732U 锗区熔提纯设备 Germanium zone melting purification equipment |
| 08/03/2011 | CN102140588A Method for preparing tara tannin germanium extracting agent |
| 08/03/2011 | CN101705378B Method for comprehensively recovering valuable metals from complex alloys containing stibium, tellurium, indium, germanium and silver |
| 08/03/2011 | CN101565776B Method for eliminating extraction and emulsification of amine and phosphorus organic reagents |
| 07/14/2011 | US20110167961 Method for purifying material containing metalloid element or metal element as main component |
| 07/13/2011 | CN102121066A Process for reducing consumption of hydrochloric acid during chlorination distillation of germanium-containing raw material |
| 07/06/2011 | CN102119122A Method for purifying material containing metalloid element or metal element as main component |
| 06/15/2011 | CN102094128A Method for comprehensively recovering various valuable metals from germanium-containing material by wet process |
| 06/08/2011 | CN101565779B Method for producing zinc powder and reclaiming scattered metals indium and germanium by distilling aluminum hard zinc in vacuum |
| 05/25/2011 | CN102071320A Solar cell germanium substrate slice processing liquid waste treatment process |
| 05/11/2011 | CN201825996U Rare noble metal recovery device |
| 04/27/2011 | CN102031397A Method for reducing high-purity germanium dioxide into germanium ingots continuously |
| 04/27/2011 | CN102031377A Process for extracting germanium and indium from waste acid in titanium pigment factory |
| 04/27/2011 | CN102031371A Method for enriching germanium from wet process zinc smelting system |
| 04/13/2011 | CN102011007A Method for recycling germanium from germanium slag |
| 03/16/2011 | CN101671777B Multi-metal recovery processing technique of waste liquid generated in germanium producing process |
| 03/16/2011 | CN101619390B Method for reducing arsenic in amine extracted germanium organic phase |
| 02/09/2011 | CN101967562A Method for recovering germanium from silicon-germanium alloy by wet method |
| 02/09/2011 | CN101525693B Method for vulcanization, reducing oxidation and enrichment of low-grade material containing arsenic, indium and germanium |
| 01/26/2011 | CN101956079A Rare and noble metal recycling device |
| 12/30/2010 | US20100326237 Composition of matter tailoring: system i |
| 12/15/2010 | CN201672796U Propelling plant for graphitic boat of germanium continuous reduction furnace |
| 12/14/2010 | US7851402 An inner organic binding group attached to at least one metal moiety of a metal oxide crystallite particle; andan outer organic binding group attached to at least one inner organic binding group; catalysts and precursors for forming metal oxide films and coatings |
| 12/08/2010 | CN101906542A Method for recovering germanium from flyash by wet process |
| 11/24/2010 | CN101892397A Process method for comprehensively recovering germanium from hydrolysis mother liquor and washing water |
| 11/10/2010 | CN101538653B Method for producing germanium concentrated ore from germanium-containing industrial liquor |
| 10/27/2010 | CN101871047A Method for reclaiming germanium from organic germanium waste liquid |
| 10/13/2010 | CN101205572B Technique for extracting germanium from germanium-containing material by pressure leaching |
| 10/06/2010 | CN101049933B Method for preparing metallic and nonmetallic Nano granules through hydrolysis method for compound containing magnesium |
| 09/29/2010 | CN101608259B Method for improving leaching rate of germanium in material containing germanium |
| 09/15/2010 | CN101831563A Method for gathering and recovering indium and germanium from indium and germanium containing material by using one-step method |
| 09/08/2010 | CN101824534A Method for extracting indium and germanium from pyrometallurgical crucible residues by whole-wet method |
| 09/01/2010 | CN101418373B Method for extracting germanium from chlorinated distillation slag |
| 09/01/2010 | CN101413063B Method for extracting germanium from lignite by pyrogenic process |
| 08/25/2010 | CN201560230U Zone-melting dolly assembly |
| 08/25/2010 | CN201560229U Intermediate head body assembly |
| 08/11/2010 | CN201548048U Continuous reducing furnace |
| 07/07/2010 | CN201522191U Cadmium removing furnace |
| 06/30/2010 | CN201516293U Box type mixing clarification extraction tank realizing saturated extraction of organic solvent |
| 06/30/2010 | CN101760653A Method for recovering germanium from zinc dross |
| 06/30/2010 | CN101186975B Method for extracting germanium from brown coal |
| 06/02/2010 | CN101407864B Method for secondarily extracting gallium and germanium from fly ash |
| 05/12/2010 | CN101705378A Method for comprehensively recovering valuable metals from complex alloys containing stibium, tellurium, indium, germanium and silver |
| 04/28/2010 | CN101698908A Method for producing metal germanium ingots by continuous reduction |
| 03/23/2010 | US7682593 Process for the production of Ge by reduction of GeCl4 with liquid metal |
| 03/17/2010 | CN101671777A Multi-metal recovery processing technique of waste liquid generated in germanium producing process |
| 02/18/2010 | WO2010018815A1 Method for purifying material containing metalloid element or metal element as main component |
| 02/18/2010 | CA2733647A1 Method for purifying material containing metalloid element or metal element as main component |
| 12/23/2009 | CN101608259A Method for improving leaching rate of germanium in material containing germanium |
| 11/18/2009 | CN201348436Y Germanium vitalization and oxidation furnace |
| 10/28/2009 | CN101565779A Method for producing zinc powder and reclaiming scattered metals indium and germanium by distilling aluminum hard zinc in vacuum |
| 10/28/2009 | CN101565776A Method for eliminating extraction and emulsification of amine and phosphorus organic reagents |
| 09/23/2009 | CN101538653A Method for producing germanium concentrated ore from germanium-containing industrial liquor |
| 09/09/2009 | CN101525693A Method for vulcanization, reducing oxidation and enrichment of low-grade material containing arsenic, indium and germanium |
| 09/03/2009 | WO2009106660A1 Method for the recovery of germanium in solution by means of complexing and use of ion-exchange resins |
| 08/26/2009 | CN100532594C Reclamation of germanium from chromium-germanium alloy waste material by wet method |
| 07/15/2009 | CN100513602C Reclamation of germanium from germanium waste material by wet method |
| 07/08/2009 | CN101476052A Germanium volatilization oxidation oven |
| 04/29/2009 | CN101418373A Method for extracting germanium from chlorinated distillation slag |
| 04/22/2009 | CN101413063A Method for extracting germanium from lignite by pyrogenic process |
| 04/15/2009 | CN101407864A Method for secondarily extracting gallium and germanium from fly ash |
| 01/29/2009 | WO2008151432A3 Method for preparing nanocrystalline germanium in ge02 and freestanding germanium nanoparticles |
| 01/27/2009 | CA2373083C Porous hollow fiber membrane having chelate formability and method for recovery of germanium oxide using the porous hollow fiber membrane |
| 12/18/2008 | WO2008151432A2 Method for preparing nanocrystalline germanium in ge02 and freestanding germanium nanoparticles |
| 11/19/2008 | EP1797209B1 Process for the production of germanium by reduction of gecl4 in a liquid metal |
| 09/10/2008 | CN101263235A Process for the production of germanium by reduction of GeCl4 in a liquid metal |
| 06/25/2008 | CN101205572A Technique for extracting germanium from germanium-containing material by pressure leaching |
| 05/28/2008 | CN101186975A Method for extracting germanium from brown coal |
| 05/28/2008 | CN101186974A Reclamation of germanium from germanium waste material by wet method |
| 05/28/2008 | CN101186973A Reclamation of germanium from chromium-germanium alloy waste material by wet method |
| 05/14/2008 | CN101177733A Technology for extracting germanium from germanium-containing coal by ultrasonic-wave assisted acid weak oxidation process |
| 01/10/2008 | WO2008003808A1 Method for the recovery of germanium present in coal ash |
| 10/10/2007 | CN101049933A Method for preparing metallic and nonmetallic Nano granules through hydrolysis method for compound containing magnesium |
| 10/03/2007 | CN100340682C Germanium recovering method |
| 08/01/2007 | CN1329562C Method for preparing monodisperse germanium nanocrystal by thermolysis |
| 06/20/2007 | EP1797209A1 Process for the production of germanium by reduction of gecl4 in a liquid metal |
| 05/16/2007 | CN1315605C Supersonic liquid phase reduction process for preparing monodisperse nano germanium crystal |
| 05/03/2007 | US20070095170 Method of manufacturing germanium-containing solution from yellow soil |
| 04/19/2007 | WO2006116751A3 Germanium-based polymers and products formed from germanium-based polymers |
| 03/14/2007 | CN1304610C 7815 extracting agent as germanium extracting additive and extracting method using said additive |
| 02/22/2007 | WO2006037999A3 Electro-reduction process |
| 02/21/2007 | CN1916199A Technique for purifying germanium through horizontal zone melting of radio heating |
| 12/27/2006 | CN1292084C Method and apparatus for drying hydrated germanium dioxide by microwave in extraction |
| 11/22/2006 | CN1865464A Method for extracting beryllium-7 and lead-210 radioactive tracer from falling rain |
| 09/06/2006 | CN1827863A Method for preparing monodisperse germanium nanocrystal by thermolysis |
| 08/16/2006 | CN1820093A Method for preparing high-purity germanium hydride |
| 08/08/2006 | US7087102 Process for purification of germane |
| 05/10/2006 | EP1654400A2 Method for preparing high-purity germanium hydride |
| 04/13/2006 | WO2006037999A2 Electro-reduction process |
| 04/06/2006 | WO2006034802A1 Process for the production of ge by reduction of geci4, with liquid metal |
| 04/06/2006 | CA2580398A1 Process for the production of ge by reduction of geci4, with liquid metal |
| 03/22/2006 | CN1246489C Method for recovering germanium from germanium-extracting coal slag |
| 01/04/2006 | CN1715429A 7815 extracting agent as germanium extracting additive and extracting method using said additive |
| 09/01/2005 | US20050191854 Process for purification of germane |