| Patents for C22B 43 - Obtaining mercury (631) |
|---|
| 08/01/1990 | CA2008611A1 Method for removing mercury from hydrocarbon oil by high temperature reactive adsorption |
| 07/18/1990 | WO1990008108A1 Method and device for separating mercury from an aqueous medium |
| 07/18/1990 | CA2020467A1 Process for the removal of mercury from an aqueous medium and an apparatus therefor |
| 05/08/1990 | CA1268730A1 Purification of gases containing mercury and recovery of metallic mercury |
| 04/03/1990 | US4913407 Precious metal recovery system |
| 03/20/1990 | US4909926 Method for removing mercury from hydrocarbon oil by high temperature reactive adsorption |
| 01/17/1990 | CN1038829A Method of removing mercury from hydrocarbon oils |
| 12/27/1989 | EP0347609A1 Process for recovering mercury from solid materials |
| 12/05/1989 | USH715 Aluminum reacts with aqueous solution of nitric acid, mercury nitrate, then quenching; nuclear fuel elements |
| 11/23/1989 | EP0342898A1 Method of removing mercury from hydrocarbon oils |
| 11/15/1989 | EP0341580A2 Process for purifying by distillation mercury-containing materials or mixed materials |
| 11/02/1989 | DE3812986A1 Decontamination process for soils contaminated by heavy metal, especially for mercury |
| 10/24/1989 | US4876025 Composition to absorb mercury |
| 08/22/1989 | US4859295 Cathodic reduction of mercury/i/ chloride |
| 07/05/1989 | EP0323206A1 Process for the removal of mercury from a gas stream |
| 06/20/1989 | US4840314 Treatment of mercurial waste |
| 03/09/1989 | DE3729030A1 Mercury adsorbent |
| 11/15/1988 | CA1244655A1 Method for recovering the valuable metal content of contaminated copper raw material |
| 10/19/1988 | EP0287540A2 The treatment of mercurial waste |
| 10/18/1988 | CA1243272A1 Process for the deposition of metals on semiconductor powders |
| 09/28/1988 | EP0284135A2 Process for recovering small batteries |
| 08/17/1988 | EP0278537A1 Process for separating gaseous mercury from gases |
| 05/10/1988 | US4743298 Process and apparatus for separating mercury and red phosphorus from one another |
| 04/06/1988 | EP0262970A2 Composition for absorbing mercury |
| 03/29/1988 | US4734270 Sulfide treatment to inhibit mercury adsorption onto activated carbon in carbon-in-pulp gold recovery circuits |
| 02/23/1988 | US4726939 Process for the removal of mercury from precious metal-cyanide liquors |
| 01/26/1988 | US4721605 Selective removal of metals from aqueous solutions with dithiophosphinic acids |
| 01/19/1988 | US4720373 Solids refining apparatus |
| 11/25/1987 | EP0246677A1 Process for removing mercury from arsenic-containing residual sulfuric acid solutions |
| 11/19/1987 | DE3609517C1 Process and apparatus for removing mercury from solid mercury-containing materials |
| 10/20/1987 | US4701212 Burning of sulfur-impregnated carbon absorbers; exhaust-gas treatment; heat exchanging |
| 09/09/1987 | EP0235414A1 Method of removing mercury in exhaust gases from a waste incinerator |
| 05/20/1987 | EP0222196A2 Process and installation for separating mercury and red phosphorus |
| 03/03/1987 | US4646660 Arrangement in apparatus for the combustion of waste gases |
| 02/04/1987 | EP0210387A1 Selective removal of metals from aqueous solutions with dithiophosphinic acids |
| 02/03/1987 | US4640751 Reacting mercury and mercuric chloride to form mercurous chloride, oxidizing mercurous chloride with chlorine to form mercuric chloride, electrolyzing to form metallic mercury and chlorine |
| 01/14/1987 | EP0040243B1 Process and apparatus for producing metals at porous hydrophobic catalytic barriers |
| 10/28/1986 | US4619838 Process for the deposition of metals on semiconductor powders |
| 10/07/1986 | CA1212240A1 Process for removal and recovery of mercury from waste water |
| 08/26/1986 | US4608083 Method for recovering the valuable metal content of contaminated copper raw material |
| 08/19/1986 | US4606762 Process for the recovery of mercury |
| 07/08/1986 | US4599177 Reduction, stripping metal vapor |
| 07/02/1986 | EP0186641A2 An arrangement in apparatus for the combustion of waste gases |
| 04/23/1986 | EP0179040A2 A method for the purification of gases containing mercury and simultaneous recovery of the mercury in metallic form |
| 04/22/1986 | US4584054 Solids refining process |
| 04/09/1986 | EP0177471A1 A method for recovering the valuable metal content of contaminated copper raw material |
| 01/14/1986 | US4564174 Device for the recovery of mercury |
| 12/17/1985 | US4559237 Process for the deposition of metals on semiconductor powders |
| 12/11/1985 | EP0163876A1 Process for depositing metals on semiconducting powders |
| 07/10/1985 | EP0148023A2 Process for the purification of mercury |
| 03/05/1985 | CA1183331A1 Method for separating gaseous, elementary mercury from a gas |
| 12/05/1984 | EP0126763A1 A method for producing pure sulphuric acid and a high-grade mercury product from gases that contain sulphur dioxide and mercury |
| 10/23/1984 | CA1176472A1 Method of leaching of metal sulphide-containing material |
| 10/16/1984 | CA1176061A1 Process for separating metals from aqueous solutions |
| 09/18/1984 | CA1174474A1 Process for separating metals from aqueous solutions |
| 08/28/1984 | US4468011 Afterburner for treating waste gas |
| 06/07/1984 | WO1984002123A1 A method for producing pure sulphuric acid and a high-grade mercury product from gases that contain sulphur dioxide and mercury |
| 04/17/1984 | US4443417 Mercury halides, washing, saturation, condensation, oxidation, complexing, absorption |
| 03/06/1984 | US4435284 Recovery of mercury from scrap glass |
| 01/04/1984 | EP0097478A2 Process for removal and recovery of mercury from waste water |
| 11/29/1983 | US4418043 Process for separating metals from aqueous solutions |
| 07/27/1983 | EP0084517A1 Process for depositing metals on semi-conductive powders |
| 07/19/1983 | CA1150064A1 Process and apparatus for recovery of hydrogen-reduced metals, ions and the like at porous hydrophobic catalytic barriers |
| 07/12/1983 | US4392962 Process for separating metals from aqueous solutions |
| 06/21/1983 | CA1148366A1 Process for purifying low-melting metals from impurities |
| 04/26/1983 | US4381288 Mercury brine sludge treatment |
| 03/15/1983 | US4376647 Heating with water vapor to form hydrogen sulfide, reacting hydrogen sulfide with lime to form calcium sulfide followed by separation |
| 12/21/1982 | US4364775 Aqueous oxidative scrubber systems for removal of mercury |
| 11/17/1982 | EP0064962A1 A method for separating gaseous, elementary mercury and gaseous halogenides of mercury and other heavy metals from a gas |
| 11/02/1982 | US4356959 Method particularly intended for separating mercury compounds and mercury alloys in solid particle form from a fluid, and an apparatus for carrying out the method |
| 10/12/1982 | US4353741 Silver coated particles and a process for preparing them |
| 08/17/1982 | US4344793 Filtration, roasting, vaporization |
| 06/29/1982 | US4337128 Redox systems |
| 06/08/1982 | US4333913 Alkali metal hydroxides, reacting peroxide with mercury polysulfide to precipitate mercury oxide |
| 05/26/1982 | EP0052253A2 Process for winning metals from aqueous solutions |
| 05/25/1982 | US4331520 Process for the recovery of hydrogen-reduced metals, ions and the like at porous hydrophobic catalytic barriers |
| 05/10/1982 | EP0040243A4 Process and apparatus for producing metals at porous hydrophobic catalytic barriers. |
| 03/02/1982 | CA1119004A1 Process for mercury removal |
| 02/17/1982 | EP0045850A1 Method of separating metals from aqueous solutions |
| 01/19/1982 | CA1116763A1 Process for the removal of mercury and mercury compounds from aqueous solutions and industrial waste liquors |
| 12/30/1981 | EP0042509A1 Mercury recovery process and apparatus |
| 12/29/1981 | CA1115063A1 Method for recuperating purified mercury from metal contaminant lades mercury or mercury butters |
| 11/25/1981 | EP0040243A1 Process and apparatus for producing metals at porous hydrophobic catalytic barriers. |
| 11/03/1981 | US4298380 Treating with aqueous solution of inorganic acid or alkali in presence of organic compounds with ionogenic groupings |
| 08/11/1981 | CA1106613A1 Process for removing mercury from brine sludges |
| 06/16/1981 | US4273747 Atomizing water |
| 06/16/1981 | US4273736 Surface active element dispersed and cured in polyphenylene oxide or sulfide or polyimide matrix |
| 05/19/1981 | US4268306 Process for removing mercury from solid waste material |
| 04/30/1981 | WO1981001159A1 Process and apparatus for producing metals at porous hydrophobic catalytic barriers |
| 04/21/1981 | CA1099490A1 Process for removing mercury from mercury vapour- containing gases |
| 03/10/1981 | US4254943 Apparatus for removing mercury from solid waste material |
| 11/18/1980 | US4234422 Process for removal of mercury and mercury compounds from aqueous solutions and industrial waste liquors |
| 10/28/1980 | US4230487 Method of selectively bringing into solution the non-ferrous metals contained in sulphurized ores and concentrates |
| 10/28/1980 | US4230486 Process for removal and recovery of mercury from liquids |
| 10/07/1980 | CA1087132A1 Method for coalescing mercury particles |
| 09/23/1980 | CA1086436A1 Process for elimination of mercury from industrial waste waters by means of extraction with solvents |
| 09/16/1980 | CA1085809A1 Spill control composition and use thereof |
| 08/19/1980 | US4218431 Removal of sulfide contaminants from carbonate waters with production of CO2 -free H2 S |
| 07/15/1980 | CA1081469A1 Sodium sulfide leach process |
| 04/29/1980 | CA1076363A1 Method for the removal of mercury from sludges containing same |