| Patents for C01B 17 - Sulfur; Compounds thereof (11,743) |
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| 08/11/1999 | EP0934230A1 Process for preparing sulphuric acid from gasses containing so 3? and gaseous nitrosylsulphuric acid |
| 08/11/1999 | EP0933991A1 Powders providing controlled sustained release of a gas |
| 08/10/1999 | US5935548 Dehydrosulfurization by mixing molten sulfur stream with degased molten sulfur having reduced hydrogen sulfide content in an eductor, oxidizing, separating hydrogen sulfide |
| 08/10/1999 | US5935547 Process for treating gas containing hydrogen sulfide and sulphur dioxide, comprising a step for depleting the recycled solvent in sulphur |
| 08/10/1999 | US5935380 Spray-drying a solution or slurry comprising (alkali metal or ammonium) (metal) hexacyanoferrate particles in a liquid, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield |
| 08/05/1999 | WO1999038799A1 Production of liquid fertilizers by ion exchange |
| 08/04/1999 | EP0810974B1 Method for partially oxidising a gas stream containing hydrogen sulphide |
| 08/04/1999 | CN1225035A Method and apparatus for treating gas by irradiation of electron beam |
| 07/29/1999 | WO1999037832A1 Solution synthesis of mixed-metal chalcogenide nanoparticles and spray deposition of precursor films |
| 07/29/1999 | WO1999037389A1 Catalysts for the selective oxidation of hydrogen sulfide to sulfur |
| 07/29/1999 | DE19802660A1 Integrating energy production, waste disposal and chemical synthesis, e.g. of polymer precursors, from carbon dioxide |
| 07/28/1999 | EP0931015A1 Method for upgrading used sulfuric acids |
| 07/27/1999 | US5928620 Process employing single-stage reactor for recovering sulfur from H2 S- |
| 07/27/1999 | US5928617 Process for removal of mercury contamination |
| 07/27/1999 | US5928496 Fluidized bed catalyst contact solids for economic removal from emissions from a variety of industrial processes |
| 07/27/1999 | CA2075069C Methods for recovering high grade process energy from a contact sulfuricacid process |
| 07/22/1999 | WO1999036175A1 Catalyst for oxidizing so2 to so3 and utilization of the catalyst in a method for producing sulfuric acid |
| 07/22/1999 | WO1999036174A1 Sulfide catalysts for reducing so2 to elemental sulfur |
| 07/22/1999 | CA2318481A1 Catalyst for oxidizing so2 to so3 and utilization of the catalyst in a method for producing sulfuric acid |
| 07/21/1999 | CN1223230A Method for recovering sulfuric acid from sulfurous by-products of process for preparing, 2-hydroxy-4-methylthiobutyric acid (MHA) |
| 07/21/1999 | CN1223229A Sulfur dioxide generation using granulated or emulsion sulfur feedstock |
| 07/21/1999 | CN1223168A Method for thermally regenerating spent acid |
| 07/21/1999 | CN1044221C Method for reclaiming metal sulfate-containing waste sulfuric acid |
| 07/20/1999 | US5925326 Process for the production of high purity carbon dioxide |
| 07/15/1999 | WO1999034900A1 Process for treating hydrogen sulfide lean streams with partial combustion of feed stream |
| 07/15/1999 | DE19800800A1 An iron oxide/vanadate catalyst for the oxidation of sulfur dioxide in the manufacture of sulfuric acid |
| 07/15/1999 | CA2576948A1 Process for treating hydrogen sulfide lean streams with partial combustion of feed stream |
| 07/14/1999 | EP0928774A1 Process for production of ammonium thiosulphate |
| 07/14/1999 | CN2328654Y Medium temperature lean oxygen automatic sulphur refining furnace for pyrite |
| 07/08/1999 | WO1999033748A1 Method and catalyst for direct sulphur oxidation of h2s contained in a gas |
| 07/07/1999 | EP0927142A1 Method for eliminating h 2?s, so 2?, cos and/or cs 2? sulphur compounds, contained in a sulphur factory waste gas with recuperation of said compounds in the form of sulphur |
| 07/07/1999 | CN1221704A Prodn. of concentrated sulphuric acid with dilute sulphuric acid and integrally producing battery sulphuric acid |
| 07/01/1999 | WO1999032843A1 Process for separating and purifying fluorine compounds, and installation thereof |
| 06/30/1999 | EP0925105A1 Method and apparatus for treating gas by irradiation of electron beam |
| 06/30/1999 | EP0840709B1 Claus sulphur production process and installation |
| 06/30/1999 | EP0614400B1 Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors |
| 06/30/1999 | CN1220967A Method for producing sodium sulfide using glauberite ore |
| 06/30/1999 | CN1043875C System and method for producing gas sulfur dioxide |
| 06/29/1999 | CA2044161C Process for improved sulfure production from sulfure production unit using acid gas containing hydrogen sulfide |
| 06/24/1999 | WO1999031358A2 Claus unit cooling and heat recovery system |
| 06/24/1999 | WO1999030808A1 IMPROVED PROCESS FOR TREATING H2S-LEAN STREAMS WITH RECYCLE OF SOx FROM BURNER |
| 06/23/1999 | EP0924485A1 Process for separating and puryfying fluorine compounds, and installation thereof |
| 06/23/1999 | EP0924165A1 Method for producing anhydrous sodium sulfide |
| 06/23/1999 | CN1220233A Process for preparation of anhydrous sodium sulfide |
| 06/23/1999 | CN1043738C Method for preparing disposable bed material and its use for scavenging hydrogen sulfide in natural gas |
| 06/22/1999 | US5914293 Absorbent and process for removing sulfur oxides from a gaseous mixture |
| 06/16/1999 | EP0922672A1 Boron trifluoride and sulfuric acid generation from boron trifluoride hydrate |
| 06/16/1999 | EP0922670A1 Process for recovering sulphuric acid from sulphur containing by-products of a process for preparing 2-hydroxy-4-methylthiobutyric acid (MHA) |
| 06/16/1999 | EP0922669A1 Process for the recovery of sulphur at high pressure |
| 06/16/1999 | CN1043613C Low-temp desulfurizer for removing organic sulfur in gas |
| 06/16/1999 | CA2256134A1 Process for the preparation of anhydrous sodium sulfide |
| 06/15/1999 | CA2071336C Catalyst and treatment process for gas containing sulfurous compounds |
| 06/10/1999 | DE19857015A1 Residual acids containing sulfuric acid recovery after concentration |
| 06/10/1999 | DE19754628A1 Catalytic desulfurization of gas mixture |
| 06/09/1999 | EP0920252A1 Silver-based antimicrobial compositions |
| 06/09/1999 | CA2255483A1 Method for recovering sulfuric acid from sulfurous by-products of a process for preparing 2-hydroxy-4-methylthiobutyric acid (mha) |
| 06/03/1999 | WO1999026714A1 Process for the reduction of so2 from wet lime/limestone tailgas in power plant desulfurization processes |
| 06/03/1999 | CA2311663A1 Process for the reduction of so2 from wet lime/limestone tailgas in power plant desulfurization processes |
| 06/01/1999 | US5908545 Electrochemical process for decomposing hydrogen sulfide to produce hydrogen and sulfur |
| 06/01/1999 | CA2096660C Process for the removal of sulphur compounds from gases |
| 05/26/1999 | EP0917490A1 Hydrotalcite sulfur oxide sorption |
| 05/25/1999 | CA2153748C Alumina-based catalyst for the treatment of gases containing sulphur compounds, use of these catalysts for the treatment and processes for treatment of the said gases |
| 05/20/1999 | WO1999024531A1 Hydrogen sulfide removal process |
| 05/20/1999 | WO1999024357A1 Reducing and decolorizing agent |
| 05/18/1999 | US5904910 Combustion to sulfur dioxide; heating, deaminating; recovering; air pollution control; sulfur trioxide and nitrogen oxide by-product inhibition |
| 05/12/1999 | EP0915055A1 Apparatus for separating gases from liquids, use of the apparatus for the separation of hydrogen sulfide from liquid sulfur and the degassed sulfur obtained |
| 05/12/1999 | EP0914686A1 Method and apparatus for desulfurizing fuel gas |
| 05/12/1999 | EP0914293A1 Method of manufacturing sulphuric acid |
| 05/12/1999 | DE19749343A1 Reduktions- und Entfärbemittel Reduction and bleaches |
| 05/06/1999 | WO1999021649A1 Catalytic membrane reactor with two component three-dimensional catalysis |
| 05/06/1999 | EP0912441A1 PROCESS FOR REMOVING NO x? FROM NITROSYLSULPHURIC ACID |
| 05/06/1999 | EP0832039B1 Method and device for processing a hydrogen sulphide-containing gas, comprising a cooling step for crystallised sulphur removal |
| 05/06/1999 | DE19748477A1 Recovery of sulfuric acid contaminated with organic material |
| 05/05/1999 | CN1215628A Process for removing and recovery of sulfur dioxide from waste gas |
| 05/04/1999 | CA2185762C Process for the recovery of waste sulphuric acid |
| 04/30/1999 | CA2219805A1 Heat exchanger having improved gas input arrangement |
| 04/28/1999 | EP0910545A1 Process for the recovery of sulfur from so 2? containing gases |
| 04/28/1999 | CN2316309Y Anode tube of glass fibre reinforced plastics for electric defroster |
| 04/27/1999 | US5897850 Two catalysis steps, recovering the sulfur through an incline tube or plate heat exchanger having a wall temperature below the solidification point of sulfur and above the dew point of water, removing the sulfur deposits with the aid of gravity |
| 04/27/1999 | CA2116017C Production of sodium hydroxide |
| 04/27/1999 | CA2065547C Continuous process for mass transfer of a liquid reagent with two different gases |
| 04/21/1999 | CN1214275A Treatment of combustible gas stream |
| 04/21/1999 | CN1043029C Method for removing hydrogen sulphide from gas and recovering in the form of sulphur |
| 04/20/1999 | US5895937 Tapered dielectric etch in semiconductor devices |
| 04/20/1999 | CA2065546C Process and apparatus for removal of h2s with separate absorber and oxidizer and a reaction chamber therebetween |
| 04/15/1999 | WO1999018032A1 Method and apparatus for vapor phase manufacture of nanoparticles |
| 04/15/1999 | WO1998043716A3 Sulfuric acid purification process |
| 04/14/1999 | CN1214026A Adsorbent for cesium ion and method or making and using |
| 04/07/1999 | CN1213394A Method for fluidizing tars |
| 04/07/1999 | CN1213327A Chemical sorbent and method of making and using same |
| 04/07/1999 | CN1212950A Method and apparatus for concentrating salt-containing solutions |
| 04/06/1999 | US5891415 Continuous processing |
| 04/06/1999 | CA2070630C Method and apparatus for effecting gas-liquid contact |
| 04/01/1999 | WO1998016462A9 Treatment of chlorine dioxide generator effluent and feed streams with fixed-resin bed |
| 03/31/1999 | EP0582632B1 Process and apparatus for removal of h2s from gaseous streams using membrane purification of recycle solution |
| 03/31/1999 | CN1212668A Catalyst for selective oxidation of sulfur compounds to elemental sulfur, method for preparation of such catalyst, and method for selective oxidation of sulfur compounds to elemental sulfur |
| 03/30/1999 | US5888920 Integrated process using in situ regenerated sulfuric acid as catalyst |
| 03/30/1999 | US5888465 Process for separating hydrogen halides from gases containing sulphur dioxide |
| 03/30/1999 | CA2139604C Ion transport membranes with catalyzed dense layer |
| 03/30/1999 | CA2139603C Ion transport membranes with catalyzed mixed conducting porous layer |