| Patents for C01G 28 - Compounds of arsenic (688) |
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| 11/18/1997 | US5688378 Oxidation of arsenic in solution in presence of photoabsorber |
| 07/22/1997 | US5649894 Compositions and methods for waste treatment |
| 05/27/1997 | US5632963 Process for the removal of impurity elements from solutions of valuable metals |
| 05/07/1997 | EP0742850A4 Method of synthesizing iii-v semiconductor nanocrystals |
| 03/11/1997 | US5609850 Treated apatite particles for ultrasound imaging |
| 02/19/1997 | CN1143254A Thick film pulp |
| 01/21/1997 | US5595724 Treated calcium/oxyanion-containing particles for medical diagnostic imaging |
| 01/08/1997 | EP0660803B1 Process for converting hexafluoroarsenic acid or any salt thereof to a water insoluble arsenate salt which can then be rendered nonhazardous |
| 11/20/1996 | EP0742850A1 Method of synthesizing iii-v semiconductor nanocrystals |
| 11/14/1996 | DE19618992A1 Thick film paste with low residual carbon content, giving good appearance |
| 09/04/1996 | EP0729436A1 Photoassisted oxidation of species in solution |
| 06/04/1996 | US5522997 Process for the removal of toxic cyanide and heavy metal species from alkaline solutions |
| 04/24/1996 | CN1121318A Removing toxic metals from solutions |
| 04/10/1996 | CN1120020A Method of wet-extraction for white arsenic |
| 04/10/1996 | CN1120019A Method of wet-extraction for arsenic |
| 04/10/1996 | CN1120018A Method of wet-extraction for arsenic |
| 02/07/1996 | EP0695224A1 Compositions and methods for waste treatment |
| 02/06/1996 | CA1338030C Oxidative dissolution of gallium arsenide and separation of gallium from arsenic |
| 01/31/1996 | EP0693904A1 Treated calcium/oxyanion-containing particles for medical diagnostic imaging |
| 01/30/1996 | US5487819 Production of metals from minerals |
| 01/17/1996 | EP0521849B1 Process and apparatus for purifying inert gases to remove lewis acid and oxidant impurities therefrom |
| 12/12/1995 | US5474591 In solutions at low temperature; reacting sodium, potassium alloy with group 5 metal; then a group 3 halide |
| 11/21/1995 | US5468465 Treated apatite particles for x-ray diagnostic imaging |
| 10/18/1995 | EP0627013B1 Process for separating disturbing elements from solutions of valuable metals |
| 09/12/1995 | US5449503 Process for separating arsenic acid from an aqueous mixture comprising sulfuric and arsenic acids |
| 08/03/1995 | WO1995020693A1 Method of synthesizing iii-v semiconductor nanocrystals |
| 07/05/1995 | EP0660803A1 Process for converting hexafluoroarsenic acid or any salt thereof to a water insoluble arsenate salt which can then be rendered nonhazardous. |
| 06/20/1995 | US5425857 Process and device for the electrolytic generation of arsine |
| 05/30/1995 | US5419892 Microfluidization of calcium/oxyanion-containing particles |
| 04/27/1995 | WO1995011195A1 Photoassisted oxidation of species in solution |
| 04/19/1995 | EP0648865A1 Process and apparatus for producing arsine electrolytically |
| 04/18/1995 | US5407659 Treated calcium/oxyanion-containing particles for medical diagnostic imaging |
| 04/05/1995 | EP0646185A1 Production of metals from minerals |
| 04/05/1995 | CN1101010A Wet method for preparation of sodium arsenate from fume containing arsenic |
| 03/22/1995 | EP0643669A1 Zinc phosphorous oxide and zinc arsenic oxide compositions |
| 02/22/1995 | CN1027702C Technology for recovering and eliminating orpiment from self-containing arsenic gold ore |
| 12/15/1994 | DE4320003A1 Process for removing dissolved arsenic by means of solid iron hydroxide in water purification |
| 12/14/1994 | EP0628337A1 Process for the removal of arsenic from a fluid in presence of a captation mass |
| 11/30/1994 | CN1095648A Compositions and methods for waste treatment |
| 10/27/1994 | WO1994024051A1 Process for separating arsenic acid from an aqueous mixture comprising sulfuric and arsenic acids |
| 10/27/1994 | WO1994023649A1 Treated calcium/oxyanion-containing particles for medical diagnostic imaging |
| 10/27/1994 | CA2159799A1 Treated calcium/oxyanion-containing particles for medical diagnostic imaging |
| 10/27/1994 | CA2155949A1 Process for separating arsenic acid from an aqueous mixture comprising sulfuric and arsenic acids |
| 10/19/1994 | EP0620189A1 Process for separating arsenic acid from an aqueous mixture comprising sulfuric and arsenic acids |
| 09/29/1994 | WO1994021345A1 Removing toxic metals from solutions |
| 09/29/1994 | CA2157923A1 Process for the removal of toxic cyanide and heavy metal species from alkaline solutions |
| 09/06/1994 | US5344640 Preparation of apatite particles for medical diagnostic imaging |
| 08/30/1994 | US5342609 Purification, filtration; for use in MRI |
| 08/24/1994 | CN1091157A Production of metal from minerals |
| 08/17/1994 | EP0610333A1 Treated apatite particles for medical diagnostic imaging |
| 07/19/1994 | US5330560 Supported sorbents for removal and recovery of arsenic from gases |
| 06/07/1994 | CA1329989C Method and apparatus for biological processing of metal-containing ores |
| 06/01/1994 | EP0643669A4 Zinc phosphorous oxide and zinc arsenic oxide compositions. |
| 05/03/1994 | CA1328981C Preparation of copper arsenate |
| 03/31/1994 | WO1994006716A1 Process for converting hexafluoroarsenic acid or any salt thereof to a water insoluble arsenate salt which can then be rendered nonhazardous |
| 03/31/1994 | WO1994006575A1 Compositions and methods for waste treatment |
| 03/31/1994 | CA2145310A1 Compositions and methods for waste treatment |
| 03/01/1994 | US5290528 Contacting with carbonated aqueous solution to leach arsenic |
| 01/06/1994 | WO1994000606A1 Production of metals from minerals |
| 12/01/1993 | CN1079004A Technology for removing and recoverying orpiment assenblende from metallurgical mine containing arsnide |
| 10/17/1993 | CA2094113A1 Methods and systems for contaminant removal by solvent leaching |
| 09/14/1993 | US5245106 Copper sulfide |
| 09/07/1993 | CA1321981C Shelf frame connector |
| 09/02/1993 | WO1993017134A1 Process for separating disturbing elements from solutions of valuable metals |
| 08/26/1993 | DE4204994A1 Verfahren zur abtrennung von stoerelementen aus wertmetall-loesungen A method for segregation of interfering elements from valuable metals-loesungen |
| 08/05/1993 | WO1993007905A3 Treated apatite particles for medical diagnostic imaging |
| 05/25/1993 | CA1318261C Method of purifying and depositing group iiia and group va compounds to produce epitaxial films |
| 05/19/1993 | EP0521849A4 Process, composition, and apparatus for purifying inert gases to remove lewis acid and oxidant impurities therefrom |
| 04/29/1993 | WO1993007905A2 Treated apatite particles for medical diagnostic imaging |
| 04/29/1993 | CA2120130A1 Treated apatite particles for medical diagnostic imaging |
| 04/21/1993 | EP0399035B1 Method of removing arsenic and/or other amphoteric elements from sludge and solid waste materials |
| 03/16/1993 | CA1314382C Manufacture of high purity low arsenic anhydrous hydrogen fluoride |
| 01/13/1993 | EP0521849A1 Process, composition, and apparatus for purifying inert gases to remove lewis acid and oxidant impurities therefrom. |
| 01/07/1993 | EP0353256B1 Method of purifying and depositing group iiib and group vb compounds to produce epitaxial films |
| 12/17/1992 | DE4119360A1 Selective arsenic@ extn. from acid soln. e.g. sulphuric acid contg. copper@ - by using mono or di:organo tin di or tri:carboxylate, di or tri:mercaptide high capacity extractant, for copper@ electrolytic purificn. |
| 11/21/1992 | WO1992020444A1 Zinc phosphorous oxide and zinc arsenic oxide compositions |
| 11/21/1992 | CA2103370A1 Zinc phosphorous oxide and zinc arsenic oxide compositions |
| 11/07/1992 | CA2066905A1 Process for the separation of arsenic acid from a sulfuric acid-containing solution |
| 10/06/1992 | US5152972 Process for producing molecular sieves and novel molecular sieve compositions |
| 08/11/1992 | US5137640 Contacting with Cu or compound, neutralizing, treating copper arsenate with ferric compound, separating ferric arsenate |
| 07/28/1992 | CA1305600C Manufacture of high purity low arsenic anhydrous hydrogen fluoride |
| 07/15/1992 | EP0294387B1 Method and apparatus for biological processing of metal-containing ores |
| 07/07/1992 | CA1304565C Method for the preparation of copper arsenate |
| 07/01/1992 | CN1062301A Process for removing mercury and arsenic from fluid in presence of capture agent of mercury and/or arsenic |
| 06/30/1992 | US5126116 Cost effective; basic copper arsenate of high purity |
| 06/24/1992 | EP0490893A1 Method for separating interfering elements from valuable metal electrolyte solutions |
| 06/09/1992 | US5120698 Catalyst, absorbers, petroleum separation |
| 05/20/1992 | EP0485658A1 Method for purifying gaseous hydrides |
| 05/06/1992 | EP0484234A2 Process for theremoval of mercury and of arsenic eventually present from a fluid in presence of a recovery mass for mercury and/or arsenic |
| 04/22/1992 | EP0481044A1 NEW COMPOUND OF THE K-Nb-Si-O SYSTEM AND ITS DERIVATIVES, PROCESS FOR SYNTHESISING THEM AND THEIR APPLICATIONS, IN PARTICULAR IN OPTICS |
| 12/10/1991 | US5072031 Layered divalent metal phosphates containing pendent substituent groups and their preparation |
| 11/12/1991 | CA1291981C Scavengers for the removal of impurities from arsine and phosphine |
| 11/06/1991 | CN1055909A Method for forming copper arsenated |
| 10/17/1991 | WO1991015868A1 Process, composition, and apparatus for purifying inert gases to remove lewis acid and oxidant impurities therefrom |
| 10/17/1991 | WO1991015426A1 NEW COMPOUND OF THE K-Nb-Si-O SYSTEM AND ITS DERIVATIVES, PROCESS FOR SYNTHESISING THEM AND THEIR APPLICATIONS, IN PARTICULAR IN OPTICS |
| 10/17/1991 | CA2040353A1 Method for forming copper arsenate |
| 10/10/1991 | DE4109958A1 Molybdenum oxide based substance contg. mixed oxide with arsenic - used for removing arsenic oxide from gas esp. flue gas to prevent pollution and catalyst deactivation |
| 09/04/1991 | CN1013764B Production method for glass defecation decolourizer mixing antimoniate and arsenate |
| 08/13/1991 | US5039496 Process for selective extraction of contaminant elements from mixtures of electrolytes in solution |
| 06/25/1991 | US5026530 Arsenic trioxide with oxygen in ammonia solution; impure starting materials, continuous; protects environment, wood preservation |