| Patents for C01B 17 - Sulfur; Compounds thereof (11,743) |
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| 03/30/1999 | CA2086218C Catalytic converter |
| 03/30/1999 | CA2086217C Catalytic converter |
| 03/30/1999 | CA2033560C Sulfur dioxide removal from flue gases with sulfite oxidation inhibition |
| 03/24/1999 | EP0903322A1 Process for the concentration of dilute sulfuric acid in a vacuum evaporating system making use of process heat |
| 03/24/1999 | CN1211465A Process for removing sulphur dioxide from flue gases |
| 03/24/1999 | CN1211464A Equipment for removing SO2 from flue-gas and producing ammonium sulfate |
| 03/24/1999 | CN1042624C Pure-oxygen normal pressure synthesis process of liquid sulfur trioxide |
| 03/23/1999 | US5885538 Reacting spent aminal with gas containing oxidation source in the presence of oxidation catalyst |
| 03/23/1999 | CA2002313C Decolourization of sulphuric acid |
| 03/18/1999 | WO1999012849A1 High efficiency process for recovering sulfur from h2s-bearing gas |
| 03/17/1999 | EP0901984A1 Treatment of a combustible gas stream |
| 03/17/1999 | EP0785905B1 Improved sulfur separation system |
| 03/10/1999 | CN1210090A Method and apparatus for production of molten sulphur from sulphureous solutions |
| 03/09/1999 | US5879830 Waste recycling by sulfiding, demetallizing, deleading |
| 03/09/1999 | US5879652 Reacting a mixture of sulfur dioxide and chlorine with carbon having a low active metal content |
| 03/03/1999 | CN1209756A Method for removing sulfur-containing contaminants, aromatics and hydrocarbons from gas |
| 03/02/1999 | US5876677 Removal sulfur from gas streams |
| 02/25/1999 | DE19736001A1 Barium and strontium sulfides |
| 02/23/1999 | CA2173271C Purification of elemental sulphur |
| 02/23/1999 | CA2141491C Fluidizable sulfur sorbent and fluidized sorption |
| 02/17/1999 | CN1208360A Method for removing sulfur-containing contaminants, aromatics and hydrocarbonsx from gas |
| 02/17/1999 | CN1042124C System for continuous production of liquid SO3 and 65% SO3 fuming sulfuric acid utilizing afterheat of converted gas |
| 02/16/1999 | US5871703 Oxidation by barrier, pulse, corona or electron beam electrical discharge, collecting acids and particles by electrostatic precipitation, separation of acids from particles |
| 02/10/1999 | EP0895963A1 Process for the production of sodium polysulphides in anhydrous alcoholic solution |
| 02/03/1999 | CN1041895C Process for the simultaneous absorption of sulfur oxides and production of ammounium sulfate |
| 02/02/1999 | US5866089 Ultrasound-assisted liquid redox absorber |
| 02/02/1999 | CA2153669C Process for recovering sulfur and hydrogen from hydrogen sulfide |
| 01/28/1999 | WO1999003627A1 A composition comprising a metal salt and metal powder therefrom by the calcining thereof |
| 01/28/1999 | CA2296082A1 A composition comprising a metal salt and metal powder therefrom by the calcining thereof |
| 01/27/1999 | CN1041811C Process for recovering sulfuric acid from metallic sulfate-containing exhaust sulfuric acid |
| 01/26/1999 | US5863513 Reacting oxygen separated from air with hydrogen sulfide in a furnace to form sulfur dioxde and water vapors, reacting formed sulfur dioxide with hydrogen sulfide to form hot gas stream containing sulfur, condensing sulfur with nitrogen |
| 01/26/1999 | US5863442 Electrodeposition of silver, acidification of fixer bath with hydrogen chloride to precipitate sulfur, mixing solution with spent developer, adjustment to ph 2, heating and drawing off sulfur dioxide, then basification to liberate ammonia |
| 01/21/1999 | WO1999002624A1 Open system sulphurous acid generator |
| 01/21/1999 | DE19730510A1 Sulfur@ recovery in high yield from hydrogen sulfide- and sulfur di:oxide-containing gas |
| 01/20/1999 | EP0891805A2 Process for removing SO2 from exhaust gases |
| 01/20/1999 | EP0891804A2 Device for removing SO2 from exhaust gases and preparation of an ammonium sulfate solution |
| 01/20/1999 | CN1205304A Smelting sulphur by blocking fined sulphur ore powder and flume sand containing sulphur |
| 01/19/1999 | US5861099 Separating sulfur from a suspension by filtration to form a filter cake; removal of sulfur from exhaust gases |
| 01/14/1999 | WO1999001376A1 Method and composition for the regeneration of an aminal compound |
| 01/14/1999 | CA2293245A1 Method and composition for the regeneration of an aminal compound |
| 01/12/1999 | US5859275 Sulfiding |
| 01/12/1999 | US5859273 Succinic acid derivative degradable chelants, uses and compositions thereof |
| 01/12/1999 | US5858065 Effluent gases, e.g. from the semiconductor manufacturing process, efficiently separated using membranes from the ?carrier gases? much faster; based on the mobility selectivity and solubility of each gas |
| 01/07/1999 | EP0888185A1 PREPARATION AND USE OF NON-CHROME CATALYSTS FOR Cu/Cr CATALYST APPLICATIONS |
| 01/06/1999 | CN1203886A Method for producing hydrogen sulfide |
| 01/06/1999 | CN1203828A Catalyst for vecovering elemental sulphur selective oxidation of hydrogen sulfide and its preparing method |
| 01/06/1999 | CN1041496C Catalyst for treating sulfur compound-containing gas and its preparing method and use |
| 01/05/1999 | CA2079757C Process for the recovery of hydrogen and sulfur from a feedstock |
| 01/05/1999 | CA2051136C An apparatus for separating sulphur and soil |
| 12/30/1998 | WO1998058877A1 A process for converting phosphogypsum wastes |
| 12/30/1998 | EP0792247A4 Metal and fluorine values recovery from mineral ore treatment |
| 12/30/1998 | CN2302246Y Rotary still sulfur recovery furnace |
| 12/30/1998 | CN1203188A Process for synthesizing chlorosulfonic acid using high-concentration sulfur trioxide |
| 12/29/1998 | US5853682 Process for cracking ammonia present in a gas containing hydrogen sulphide |
| 12/29/1998 | CA2165366C Cryogenic rectification system for fluorine compound recovery |
| 12/23/1998 | WO1998057731A1 Method for desulfurizing off-gases |
| 12/23/1998 | EP0885841A1 System and method for collecting and refining SF6 gas |
| 12/23/1998 | EP0885169A1 Adsorbent for cesium ion and method of making and using |
| 12/23/1998 | EP0885168A1 Catalyst for the selective oxidation of sulfur compounds to elemental sulfur, method for the preparation of such a catalyst, and method for the selective oxidation of sulfur compounds to elemental sulfur |
| 12/23/1998 | EP0762990B1 Process for burning of sulfur |
| 12/23/1998 | CN2301440Y 浓硫酸稀释冷却器 Concentrated sulfuric acid dilution cooler |
| 12/23/1998 | CA2295443A1 Method for desulfurizing off-gases |
| 12/22/1998 | US5851265 Selective removal and recovery of sulfur dioxide from effluent gases using organic phosphorous solvents |
| 12/16/1998 | EP0884093A1 Process and apparatus for recovering sulphur compounds from flue gas |
| 12/16/1998 | EP0884092A1 Process for removing sulfur dioxide from an exhaust gas |
| 12/15/1998 | CA1340248C High yield sodium hydrosulfite generation |
| 12/13/1998 | CA2240765A1 Process for removing sulfur dioxide from flue gasses |
| 12/13/1998 | CA2240342A1 Process and apparatus for recovering sulfur compounds from flue gas |
| 12/10/1998 | WO1998055395A1 Preparation of sulphides and selenides |
| 12/10/1998 | WO1998055209A1 Method and system for selective removal of contamination from gas flows |
| 12/09/1998 | EP0882214A2 Sealed observation element for sulfur recovery unit |
| 12/09/1998 | EP0882110A2 Method for fluidizing tars |
| 12/09/1998 | EP0881936A1 Natural gas treatment process |
| 12/09/1998 | EP0851787A4 Process for selective oxidation |
| 12/02/1998 | EP0880992A1 Desulfurization apparatus and electric power plant using the same |
| 12/02/1998 | EP0880395A1 Method for removing sulfur-containing contaminants, aromatics andhydrocarbons from gas |
| 12/02/1998 | EP0852565A4 Sulfur recovery process using sulfur debonding agent |
| 12/01/1998 | US5843591 Polymeric metal oxide materials and their formation and use |
| 12/01/1998 | US5843395 Process for hydrogen production from hydrogen sulfide dissociation |
| 12/01/1998 | US5843394 Catalyst for the oxidation of gaseous sulphur compounds |
| 12/01/1998 | US5843391 Method of manufacturing silicon sulfide |
| 12/01/1998 | US5843382 Method and apparatus for removing sulfur from solution in liquid redox sulfur removal processes |
| 12/01/1998 | US5843316 Method of separating sodium hydroxide from white liquor or polysulfide liquor using diffusion dialysis |
| 12/01/1998 | US5842853 Apparatus for producing SO2 -containing gas and cement clinker from waste gypsum |
| 11/26/1998 | WO1998052680A1 Removal of contaminants from gas streams in rayon production |
| 11/26/1998 | CA2289845A1 Removal of contaminants from gas streams in rayon production |
| 11/11/1998 | EP0876995A1 Process for concentrating or purifying sulfuric acid |
| 11/10/1998 | US5833718 Applying aqueous solution on animal hide as depilatory agent |
| 11/10/1998 | CA2057861C Process for the treatment of water containing sulphur compounds |
| 11/07/1998 | CA2236620A1 Process for concentrating or purifying sulphuric acid |
| 11/05/1998 | WO1998049098A1 Method and device for converting hydrogen sulfide into elemental sulfur |
| 11/05/1998 | DE19718261A1 Verfahren und Vorrichtung zur Umwandlung von Schwefelwasserstoff in elementaren Schwefel Method and device for converting hydrogen sulfide to elemental sulfur |
| 10/29/1998 | WO1998047813A1 Method for eliminating h2s, so2, cos and/or cs2 sulphur compounds, contained in a sulphur factory waste gas with recuperation of said compounds in the form of sulphur |
| 10/29/1998 | WO1998047602A1 Method for regenerating a loaded wash liquid from a gas desulfurization facility |
| 10/27/1998 | CA2019462C Absorption of wet conversion gas |
| 10/22/1998 | DE19716310A1 Verfahren zum Regenerieren einer beladenen Waschflüssigkeit, die aus einer Anlage zur Entschwefelung eines Wasserstoff und Kohlenoxide enthaltenden Gasgemisches kommt Process for regenerating a loaded washing liquid containing gas mixture from a plant for the desulfurization of a hydrogen and carbon oxides is |
| 10/21/1998 | EP0871525A1 Liquid medium extraction purification method |
| 10/20/1998 | US5824282 Contacting a melt with activated alumina to remove metal contaminants |
| 10/15/1998 | DE3690570C2 Removing sulphur cpds. from residual gas |
| 10/14/1998 | CN1196031A Method and apparatus for degassing sulfur |