| Patents for C01B 17 - Sulfur; Compounds thereof (11,743) |
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| 06/30/1987 | CA1223541A1 Process for separating sulfuric acid and carboxylic acids |
| 06/25/1987 | DE3545196A1 Process for treating waste sulphuric acid |
| 06/24/1987 | EP0226415A1 A continuous process for the removal of hydrogen sulfide from a gaseous stream |
| 06/23/1987 | CA1223113A1 Economizer arrangement |
| 06/19/1987 | DE3628870A1 Process for recovery of elemental sulphur |
| 06/16/1987 | US4673560 Generation of sulphur trioxide from oleum using microwave energy |
| 06/16/1987 | EP0225686A1 Process for hydrotreating residual petroleum oil |
| 06/16/1987 | CA1222970A1 Membrane process for converting sodium sulfate into sulfuric acid and sodium carbonate |
| 06/09/1987 | US4671952 Vaporizing liquid sulfur dioxide with microwave radiation |
| 06/09/1987 | US4671951 Purification and reconcentration of waste sulphuric acid |
| 06/09/1987 | CA1222605A1 Recovery of chemicals from pulp waste liquor |
| 06/04/1987 | WO1987003216A1 Method for continuously producing sulphur in the form of substantially spherical, individual and/or agglomerated solid particles |
| 06/04/1987 | DE3541824A1 Process for the desulphurization and denitration of flue gases |
| 06/03/1987 | EP0224340A1 Sulphur trioxide absorption tower and process |
| 06/02/1987 | US4670242 Heat recovery from concentrated sulfuric acid |
| 06/02/1987 | US4670235 P oxidation over moist carbon |
| 05/27/1987 | EP0223325A1 Improved process for removal of H2S from geothermal steam |
| 05/27/1987 | EP0223211A2 Sulfur dioxide removal process |
| 05/27/1987 | CN86107757A Sulfur dioxide removal process |
| 05/26/1987 | US4668491 Carbonyl sulfide, carbon disulfide, steam, alkalized chromium oxide-aluminum oxide catalyst |
| 05/26/1987 | US4668490 Process and a device for flue gas desulphurization |
| 05/26/1987 | CA1222126A1 Enrichment of gaseous hydrogen sulfide fractions |
| 05/19/1987 | US4666695 Adding ammonium thiocyanate to increase settling after oxidation |
| 05/13/1987 | EP0221446A2 Method to cool and dry hot gases containing sulfur oxides with strong sulfuric acid |
| 05/12/1987 | US4664903 Removal of sulfur compounds from gases |
| 05/12/1987 | US4664902 Recovery of sulfur from a solid sulfur-containing solution of solubilized iron chelate of nitrilotriacetic acid |
| 05/12/1987 | CA1221673A1 Process for the removal of h.sub.2s from a sour h.sub.2s-containing gaseous stream |
| 05/07/1987 | WO1987002655A1 Catalytic process for producing sulphur from h2s-containing acid gas |
| 05/07/1987 | WO1987002654A1 Process for removing sulphur-containing compounds from a residual gas |
| 05/07/1987 | WO1987002653A1 Process for removing sulfur compounds contained in a residual gas |
| 05/06/1987 | EP0220655A2 Sulphur-containing dispersions |
| 05/06/1987 | EP0220610A2 Production of sulfur from an oxygen enriched claus system |
| 05/06/1987 | EP0220583A2 Method of recycling sulfuric acid form diluted acid |
| 05/05/1987 | US4663142 Generation of sulphur trioxide from oleum |
| 04/30/1987 | DE3538391A1 Process for reducing a carbonate content in sodium hydrogen sulphide liquor |
| 04/28/1987 | CA1220942A1 Method for two stage in-line acid mixing |
| 04/22/1987 | EP0219136A2 Method of separation of sugars and concentrated sulfuric acid |
| 04/21/1987 | US4659556 Scrubbing with sulfuric acid |
| 04/21/1987 | CA1220631A1 Continuous copper smelting and converting in a single furnace by oxygen injection |
| 04/21/1987 | CA1220614A1 Catalytic production of sulphur from h.sub.2s containing gas |
| 04/15/1987 | EP0218411A1 Sulphuric acid |
| 04/15/1987 | EP0218302A2 Process for purifying exhaust gas containing hydrogen sulfide and sulfur dioxide |
| 04/15/1987 | EP0218153A2 Process for eliminating sulfur compounds from gas streams |
| 04/15/1987 | CN85107473A Vanadium catalyst for prodn. of sulfuric acid |
| 04/14/1987 | US4657566 Effluent cleansing method and device |
| 04/14/1987 | CA1220320A1 Method of producing sulphuric acid from sulphur dioxide and apparatus therefor |
| 04/09/1987 | WO1987001962A1 Method and device for the selective removal of h2s from an h2s-containing gas |
| 04/09/1987 | WO1987001961A1 Method and device for the selective removal of h2s from a h2s-containing gas |
| 04/09/1987 | WO1987001960A1 Method and device for the selective removal of h2s from a h2s-containing gas |
| 04/08/1987 | EP0217567A2 Process and apparatus for treating sulphur dioxide-containing gas |
| 04/07/1987 | US4655828 From mixture with lithium salts by solvent extraction |
| 04/02/1987 | DE3534060A1 Method of operating flue gas collectors at reduced temperature |
| 04/01/1987 | EP0216664A1 Process for the production of disulfur decafluoride and sulfur hexafluoride |
| 04/01/1987 | EP0216663A1 Process for the production of sulfur hexafluoride |
| 04/01/1987 | EP0215911A1 Selective absorption of hydrogene sulfide from gases which also contain carbon dioxide |
| 04/01/1987 | CN85106964A A process for removing nh3 in an so2-containing gas |
| 03/31/1987 | US4654205 Sulfuric acid, countercurrent flow |
| 03/31/1987 | US4654202 Vasodilation, hypotensive, hydroxydropyl methyl cellulose |
| 03/31/1987 | CA1219732A1 Single step purification of sulfur dioxide gas prepared by the combustion of sulfur containing compounds |
| 03/31/1987 | CA1219731A1 Process for desulfurizing fuel gases |
| 03/26/1987 | WO1987001612A1 Process for the recovery of sulphur dioxide from gas flows |
| 03/25/1987 | EP0215709A1 Process for eliminating sulfur dioxide from a gas by means of an absorption mass that can be regenerated by reaction with hydrogen sulfide |
| 03/25/1987 | EP0215317A1 Process for eliminating hydrogen sulphide from exhaust gases |
| 03/25/1987 | CN86101738A Recovery of waste acid of sulfuric acid alkylation |
| 03/24/1987 | US4651817 Heat exchange apparatus useful for melting sulfur |
| 03/24/1987 | CA1219430A1 Process and equipment for the burning of gases containing h.sub.2s |
| 03/18/1987 | EP0214734A2 Method and apparatus for making sulphuric acid |
| 03/18/1987 | EP0214407A2 Process for removing organic sulphur compounds, and/or sulphur oxides and/or nitrogen oxides from gases |
| 03/10/1987 | US4649032 Oxidation with chelate compound |
| 03/10/1987 | CA1218813A1 Process for limitation of a sulphur dusts emission from sulphur prilling towers by thermic method |
| 03/05/1987 | DE3531398A1 Process for simultaneously separating out SOx and NOx from flue gases without inevitable production of wastes |
| 03/05/1987 | DE3531397A1 Process for simultaneously separating out SOx and NOx from flue gases with sulphur recovery without inevitable production of wastes |
| 03/04/1987 | EP0212730A2 Process for the removal of H2S from a sour gaseous stream |
| 03/04/1987 | EP0212297A2 High pressure process for sulfur recovery from a hydrogen sulfide containing gas stream |
| 03/03/1987 | US4647397 Composition for removing sulfides from industrial gas |
| 03/03/1987 | US4647287 Recovery of sulfur from sulfur froth |
| 03/03/1987 | CA1218516A1 Treatment of low concentration h.sub.2s gas streams in liquid phase claus reactor |
| 02/25/1987 | EP0211648A2 Treatment of sodium dithionite reaction mixture |
| 02/24/1987 | CA1218220A1 Cooling and condensing of sulfur and water from claus process gas |
| 02/24/1987 | CA1218219A1 Process and apparatus for recovery of sulfur from ammonia containing acid gas streams |
| 02/19/1987 | DE3529649A1 Process for concentrating sulphuric acid |
| 02/17/1987 | US4643888 Desulfurization, deamination using regenerated effluent from claus process |
| 02/17/1987 | US4643887 Production of sulfur trioxide, sulfuric acid and oleum |
| 02/17/1987 | US4643886 Automatic pH control in a process for removal of hydrogen sulfide from a gas |
| 02/17/1987 | US4643806 Electrocatalytic energy conversion and chemicals production |
| 02/11/1987 | CN85106283A Highly effective dry-desulphurizer |
| 02/05/1987 | DE3526668A1 Process and equipment for reducing the sulphur content of a gas stream |
| 02/05/1987 | DE3526662A1 Process for desulphurising a crude-gas stream |
| 02/04/1987 | EP0210769A1 Removal of arsenic from acids |
| 02/03/1987 | US4640908 Catalyst for the oxidation of hydrogen sulfide and process for the preparation of the catalyst |
| 02/03/1987 | US4640832 Process for the production of sodium polysulfides from the elements sodium and sulfur |
| 02/03/1987 | US4640825 Process for simultaneous removal of SO2 and NOx from gas streams |
| 01/29/1987 | DE3526787A1 Process for producing sulphur from hydrogen sulphide |
| 01/29/1987 | DE3526706A1 Process and reactor for the catalytic conversion of hydrogen sulphide to elemental sulphur |
| 01/29/1987 | DE3525776A1 Process for controlling the SO2 circulation for simultaneous separating off of SO2 and NOx and laughing gas (N2O) in a process for obtaining SO2-rich gas |
| 01/28/1987 | EP0209988A1 Improved process for the removal of H2S from geothermal steamand a composition comprising iron chelate and a cationic polymer |
| 01/24/1987 | CN85101506A Process for removing the residual sulfuric acid from the reaction mixture produced in sulfoxidation of alkanes |
| 01/22/1987 | DE3525377A1 Purification of SO2-containing exhaust air |
| 01/22/1987 | DE3524608A1 Process for controlling the SO2 circulation for simultaneously separating out SO2 and NOx and laughing gas |
| 01/17/1987 | CN85101469A Process of producing a v2o5 and alkali metal sulfate containing catalyst for the oxidizing so2 to so3 |