| Patents for C01B 17 - Sulfur; Compounds thereof (11,743) |
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| 02/08/1994 | CA1326755C Process for concentrating sulphuric acid |
| 02/02/1994 | EP0581026A1 Removal of hydrogen sulfide |
| 02/01/1994 | US5283046 Circulating the reaction filtrate by adding sodium hydroxide, sodium carbonate prior distillation to convert sodium thiosulfate, rapidly vacuum drying |
| 02/01/1994 | CA1326588C Process for separating metal sulphates from sulphuric acid |
| 01/26/1994 | EP0579711A1 Method for removing sulphur compounds from water. |
| 01/26/1994 | EP0417200B1 Sulfuric acid process and apparatus |
| 01/25/1994 | US5281317 Electrodialytic water splitting process for removing SO2 from gases |
| 01/20/1994 | WO1994001361A1 Method and apparatus for making nanometer sized particles |
| 01/20/1994 | WO1994001205A1 Desulphurisation of waste gases |
| 01/20/1994 | CA2140128A1 Desulphurisation of waste gases |
| 01/19/1994 | EP0395740B1 Process for purifying aqueous buffer solutions |
| 01/19/1994 | CN1023553C Method for purifying high temp. reducibility gas |
| 01/18/1994 | US5279801 Vapor phase; reacting rare earth (or transition metal) compound with a carbon-sulfur compound in a hermetic sealed enclosure |
| 01/11/1994 | US5278208 Particulate opacifying extender for polymer coatings |
| 01/11/1994 | US5278123 Monolithic catalysts for converting sulfur compounds into SO2 |
| 01/11/1994 | US5277247 Heat exchanger having improved tube layout |
| 01/11/1994 | CA1325880C Process for simultaneous production of sulfur from h_s-containing gases and so -containing gases |
| 01/05/1994 | EP0335987B1 Process for producing chevrel compounds |
| 01/05/1994 | CN1080381A Method for-conditioning flue gas |
| 01/04/1994 | US5275738 Filter device for acids and process for filtering inorganic acids |
| 01/04/1994 | US5275701 Process for purification and concentration of sulfuric acid |
| 12/31/1993 | CA2072800A1 Process for thermal conversion of hydrogen sulfide to elemental sulfur |
| 12/29/1993 | EP0575540A1 Reduction of sulfur emissions from coal-fired boilers |
| 12/29/1993 | EP0390875B1 Process for separating antimony from acidic solutions containing same |
| 12/28/1993 | US5273734 Forming sulfur and a ferrous chelate by adding a ferric chelate solution to a sour gaseous stream; a 2,6-dicarboxypyridine ligand |
| 12/28/1993 | US5273725 Concentrating radionuclide products by digesting with an aqueous solution of boric acid and a mineral acid; using a cation reactant to precipitate fluoride compounds |
| 12/22/1993 | EP0574611A1 Method for conditioning flue gas |
| 12/21/1993 | US5271919 Process for the thermal decomposition of metal sulphates |
| 12/21/1993 | US5271907 High temperature regenerable hydrogen sulfide removal agents |
| 12/16/1993 | DE4241540C1 Crude powder mixt. for cement clinker prodn. and sulphur di:oxide recovery - contains calcium sulphate, sand, ash, carbon carrier and pulp from decomposition of asbestos with sulphuric acid, for safe utilisation of harmful waste |
| 12/15/1993 | EP0573914A1 Recovery of elemental sulfur from gases |
| 12/14/1993 | US5270015 Apparatus for removing sulfur from sulfur containing gases |
| 12/14/1993 | US5269929 Sulfate reducing bacteria and anaerobic heterotroph |
| 12/09/1993 | DE4218300A1 Purificn. of gas mixt. contg. hydrogen sulphide and nitrogen oxide - by using hydrogen sulphide content and ammonia for selective catalytic redn., esp. for purifying acid liquor stripper gas |
| 12/07/1993 | US5268152 Zinc oxide and phosphate |
| 12/02/1993 | DE4216499A1 Waste sulphuric acid regeneration by photodecomposition of organic matter - using high intensity light, esp. sunlight, and moderate to high temp. |
| 12/01/1993 | EP0572053A1 Contact kettle for the quasi-isothermal catalytic transformation of SO2 in SO3 and process for executing the transformation |
| 11/30/1993 | US5266274 Oxygen control system for a sulfur recovery unit |
| 11/27/1993 | CA2096809A1 Contact reactor for a quasi-isothermal catalytic reaction of so2 to so3 and method of operating the reactor |
| 11/23/1993 | US5264200 Oxidation of sulfur dioxide to sulfur trioxide and formation of sulfuric acid using cesium or vanadium oxidation catalysts |
| 11/23/1993 | US5264031 Particulate opacifying extender for polymer coatings |
| 11/23/1993 | CA1324481C Rapid suppression process for hydrogen sulfur contained in liquid sulfur and catalytic system used therefor |
| 11/18/1993 | EP0570324A1 Process for the production of sulphuric acid |
| 11/18/1993 | EP0570185A2 Hydrogen-permeable composite metal membrane and uses thereof |
| 11/16/1993 | US5262139 Removal of sulfur dioxide from gas streams |
| 11/16/1993 | US5262135 Simplified, efficient method |
| 11/16/1993 | CA2094198A1 Hydrogen-permeable composite metal membrane and uses thereof |
| 11/11/1993 | WO1993022493A1 Polysulfide production in white liquor |
| 11/11/1993 | CA2131377A1 Polysulfide production in white liquor |
| 11/10/1993 | EP0568980A1 Combustion of H2S and its associated Claus process |
| 11/10/1993 | EP0504203B1 Method and apparatus for effecting gas-liquid contact |
| 11/10/1993 | CN1022678C Process for preparing sulfur solvent compositions |
| 11/06/1993 | CA2095457A1 Combustion of h s and its associated claus process |
| 11/03/1993 | EP0567467A1 Rotating tube heat treatment unit, in particular a rotating tubular kiln, with indirect heat feed or dissipation. |
| 11/03/1993 | CN2145179Y Metal cauldron of continous processing sulfur reclaiming |
| 10/28/1993 | WO1993021107A1 Process and apparatus for recovering sulphur from a gas stream containing hydrogen sulphide |
| 10/27/1993 | EP0567373A1 Fluid hydrated ferrous sulfate and process for fluidizing polyhydrated metallic sulfates |
| 10/27/1993 | EP0566950A1 Use of wrought and cast alloys and welding additives for parts contacted by oleum or concentrated hot sulphuric acid and process for the preparation of sulphuric acid |
| 10/27/1993 | EP0566949A1 Process for the concentration and purification of sulphuric acid |
| 10/26/1993 | US5256384 Activated carbon process for removing hydrogen sulfide from gases |
| 10/24/1993 | CA2094459A1 Use of wrought and cast materials and welding fillers for making and using hot concentrated sulphuric acid or oleum |
| 10/24/1993 | CA2094453A1 Process for concentrating and purifying sulphuric acid |
| 10/20/1993 | CN1077433A Cold condensation process in sulfuric acid prodn. |
| 10/19/1993 | CA1323175C Process for the purification of exhaust gases |
| 10/19/1993 | CA1323174C Process for the treatment of sulfur composite containing industrial gases |
| 10/19/1993 | CA1323173C Process for recovering sulfur from sulfur-containing gases |
| 10/14/1993 | WO1993020008A1 Desulfurization process using bromine |
| 10/14/1993 | WO1993019852A1 Flue gas conditioning system |
| 10/14/1993 | WO1993019836A1 Method and apparatus for effecting gas-liquid contact |
| 10/14/1993 | CA2337131A1 Method and apparatus for effecting gas-liquid contact |
| 10/14/1993 | CA2337121A1 Method and apparatus for effecting gas-liquid contact |
| 10/14/1993 | CA2133835A1 Flue gas conditioning system |
| 10/13/1993 | EP0565316A2 Treatment of gas streams |
| 10/13/1993 | CN1077267A Treatment of liquid waste material |
| 10/13/1993 | CN1022400C Combined non-steady state SO2 converter |
| 10/12/1993 | US5252259 Contacting with reaction product of sulfur hexafluoride and metallated macroreticulate polymer |
| 10/12/1993 | CA1322854C Metal sulphate suspension recovered from waste acid, a process for its preparation and its use |
| 10/06/1993 | EP0563075A1 Manufacture of peroxidic compositions. |
| 10/06/1993 | CN1022311C Sulfuric acid process and apparatus |
| 10/06/1993 | CN1022310C Condensing sulfuric acid vapours to produce sulfuric acid |
| 10/05/1993 | CA1322650C Treatment of gas streams |
| 09/29/1993 | EP0561889A1 Process for the removal of sulphur compounds from gases. |
| 09/29/1993 | CN1076734A Tetravalent titanium electrolyte and trivalent titanium reducting agent dbtaineo thereby |
| 09/22/1993 | EP0561521A1 Treatment of waste or other material |
| 09/21/1993 | US5246680 Reaction of sulfur oxides with lime to form dust which is then filtered |
| 09/21/1993 | US5246553 Redox system |
| 09/19/1993 | CA2090594A1 Treatment of waste or other material |
| 09/16/1993 | WO1993018207A1 Tetravalent titanium electrolyte and trivalent titanium reducing agent obtained thereby |
| 09/16/1993 | CA2131304A1 Tetravalent titanium electrolyte and trivalent titanium reducing agent obtained thereby |
| 09/14/1993 | US5244642 Forming sulfur trioxide by combustion of air and sulfur, removal of fly ash |
| 09/14/1993 | US5244552 Process and apparatus for waste gas treatment by multi-stage electron beam irradiation |
| 09/07/1993 | US5242673 Elemental sulfur recovery process |
| 09/02/1993 | DE4206104A1 Solids bed reactor with indirect cooling/heating system - e.g. for oxidn. of hydrogen sulphide to elemental sulphur@ in biologically generated gas |
| 08/31/1993 | US5240476 Process for sulfur removal and recovery from a power generation plant using physical solvent |
| 08/31/1993 | US5240470 Removal of entrained particles with electrostatic precipitator; use of movable catalytic converter to convert sulfur dioxide to sulfur trioxide |
| 08/25/1993 | EP0556172A1 Use of chlorous acid for removing sulfur dioxide from combustion gases |
| 08/24/1993 | US5238662 Processes for recovering precious metals |
| 08/18/1993 | CN1075299A Process for purifying of sodium sulfide |
| 08/18/1993 | CN1021800C Waste gas governing technology about refining sulfur from sulfur iron ore in indigenous method |
| 08/17/1993 | US5236677 Biological process for the elimination of sulphur compounds present in gas mixtures |