| Patents for C01B 17 - Sulfur; Compounds thereof (11,743) |
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| 07/26/1995 | EP0663850A1 Method for removing hydrogen sulphide from mixture gas containing hydrogen sulphide and excessive amounts of steam and ammonia. |
| 07/25/1995 | US5435945 Method and apparatus for generating sulphur seed particles for sulphur granule production |
| 07/19/1995 | EP0663232A2 Ion transport membranes with dense layer containing a catalyst |
| 07/19/1995 | EP0663231A2 Ion transport membranes with porous mixed conducting layer containing a catalyst |
| 07/19/1995 | EP0662929A1 Method for reclaiming metal sulfate-containing waste sulfuric acid. |
| 07/18/1995 | US5434329 Treatment of spent refinery caustic |
| 07/18/1995 | US5434301 Ion exchange resins |
| 07/18/1995 | US5433939 Cyclic process for oxidation of calcium sulfide |
| 07/12/1995 | EP0662448A1 Process for the purification of impure sulphuric acid |
| 07/12/1995 | EP0662030A1 Process and device for purifying the outgoing air from molten mass solidifying plants |
| 07/12/1995 | CN1105178A Method for removing hydrogen sulphide from a gas and recovering in the form of sulphur |
| 07/12/1995 | CN1105175A Method for removing sulphur compounds from a residual gas such as a residual gas from a claus process sulphur plant, and recovering said compounds as sulphur |
| 07/12/1995 | CN1105174A Method for the direct high-selectivity catalytic oxidative conversion of a low concentration of H2S in a gas into sulphur, and catalyst therefor |
| 07/12/1995 | CN1104999A Purified technology for ferrous sulfate of titanium white powder by-product |
| 07/04/1995 | US5429812 Peroxymonosulfuric acid formed by reaction of hydrogen peroxide and sulfuric acid |
| 07/04/1995 | CA1336126C Process for the concentration of sulfuric acid by evaporation |
| 06/29/1995 | DE4344035A1 Desulphurising sulphur-contg. crude gas charged with coke dust |
| 06/28/1995 | EP0659893A1 Process for extracting and concentrating of cadmium from concentrated sulfuric effluents with a low or medium content of cadmium |
| 06/27/1995 | US5427752 Process for purifying high-temperature reducing gases |
| 06/21/1995 | EP0658129A1 Process for producing granulates from molten products |
| 06/20/1995 | US5426083 Anionic layered mixed hydroxide clay |
| 06/15/1995 | WO1995015918A1 Method for recovering sulphur from ores |
| 06/07/1995 | EP0656154A1 Process for disposing of sodium-sulphur accumulator cells. |
| 06/06/1995 | US5422086 Contacting the gas with a ferric complex to form sulfur and a ferrous complex which is oxidized by both a concurrent and cocurrent stream of oxygen before reuse |
| 05/31/1995 | EP0655414A1 A process for removing elemental sulfur from a gas stream |
| 05/31/1995 | CN1103154A A gas combuster/reactor |
| 05/30/1995 | CA1335690C Process for producing ammonia and sulfur dioxide |
| 05/26/1995 | WO1995013985A1 Metal and fluorine values recovery from mineral ore treatment |
| 05/26/1995 | CA2175912A1 Metal and fluorine values recovery from mineral ore treatment |
| 05/24/1995 | EP0654441A1 Process for purifying sulfur oxides-containing gas |
| 05/17/1995 | EP0652849A1 Process for the preparation of metal sulphides. |
| 05/16/1995 | CA1335533C Process and reactor for catalytic reaction of h s and so_ to sulfur |
| 05/10/1995 | EP0652042A1 Composite hydrogen separation metal membrane |
| 05/09/1995 | US5413765 Removal of contaminants from gas or liquid stream |
| 05/09/1995 | CA2135153A1 Composite hydrogen separation metal membrane |
| 05/04/1995 | DE4437550A1 Process for recovering sulphuric acid from metal sulphate-containing used acids |
| 05/04/1995 | DE4437253A1 Process for preparing anhydrous sodium dithionite |
| 05/02/1995 | CA1335466C Polymeric sulfide mineral depressants |
| 04/27/1995 | WO1995011199A1 Processes for the treatment of acidic liquors and for the production of commercial products thereby |
| 04/27/1995 | WO1995007856A3 Catalyst for the selective oxidation of sulfur compounds to elemental sulfur, process for preparing such catalyst and process for the selective oxidation of sulfur compounds to elemental sulfur |
| 04/27/1995 | CA2174667A1 Processes for the treatment of acidic liquors and for the production of commercial products thereby |
| 04/26/1995 | EP0649939A1 Method of producing sodium hydroxide from white liquor |
| 04/26/1995 | EP0649386A1 Process for the production of sulphuric acid from sulphur dioxide |
| 04/26/1995 | EP0649337A1 Desulphurisation of waste gases. |
| 04/25/1995 | USRE34919 Useful monomers for polypyrrole and polythiophene polymers with requiered conductivity |
| 04/25/1995 | US5409581 Reduction of organic compounds in methanesulfonic acid |
| 04/20/1995 | CA2118208A1 Method for selectively removing antimony and bismuth from sulphuric acid solutions |
| 04/19/1995 | EP0648709A1 Method for selectively removing antimony and bismuth from sulphuric acid solutions |
| 04/18/1995 | US5407646 Dual impeller method and apparatus for effecting chemical conversion |
| 04/12/1995 | EP0647589A1 Method for the cyclic operation of reactors |
| 04/12/1995 | EP0238592B2 Method for the selective removal of h2s from a h2s-containing gas |
| 04/11/1995 | CA1335151C Process for the removal of hydrogen sulfide from gases |
| 04/09/1995 | CA2133854A1 Method for cyclic operation of reactors |
| 04/05/1995 | EP0563075B1 Manufacture of peroxidic compositions |
| 04/05/1995 | CN1101008A Technology for production of highly-finished sulfuric acid series product |
| 04/04/1995 | US5403571 Mixing elemental sulfur with an aqueous sulfide or a base at high pH to form aqueous sulfide solution to cause extration of mercury form sulfur into sulfide solution; separating sulfur which is free of mercury and other impurities |
| 04/04/1995 | US5403569 Process for boiler flue gas cleaning by absorption, separation and liquefaction |
| 04/04/1995 | US5403567 Desulfurizing a natural gas stream containing the sulfur compounds by absorpting with a liquid medium, oxidizing with oxygen gas to form insoluble sulfur or sulfur compound |
| 03/29/1995 | EP0614400A4 Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors. |
| 03/28/1995 | US5401475 Process and apparatus for generating elemental sulfur and re-usable metal oxide from spent metal sulfide sorbents |
| 03/23/1995 | WO1995007856A2 Catalyst for the selective oxidation of sulfur compounds to elemental sulfur, process for preparing such catalyst and process for the selective oxidation of sulfur compounds to elemental sulfur |
| 03/23/1995 | WO1995007855A1 Improvements in or relating to sulphur production from sulphur-bearing gas streams |
| 03/23/1995 | WO1995007854A1 Process for removing hydrogen sulphide from liquid sulphur |
| 03/23/1995 | WO1995007750A1 Method and apparatus for absorbing hydrogen sulphide |
| 03/23/1995 | CA2171342A1 Method and apparatus for absorbing hydrogen sulphide |
| 03/22/1995 | EP0643757A1 Process for treating gases obtained by coal gasification, residue gasification, refuse gasification or oil gasification |
| 03/21/1995 | US5399323 Calcium sulfate to calcium sulfide |
| 03/21/1995 | CA1334783C Heat recovery from concentrated sulfuric acid |
| 03/15/1995 | EP0460230B1 Method and apparatus for treating exhaust gas by multi-stage irradiation with electron beam |
| 03/14/1995 | US5397556 Process for recovery of sulfur from acid gases |
| 03/09/1995 | WO1995006699A1 Process for scrubbing a substantially oxygen-free fuel gas |
| 03/09/1995 | WO1995006616A1 Liquid sulfur degassing |
| 03/09/1995 | DE4333039A1 Process for purifying an essentially oxygen-free combustible gas |
| 03/08/1995 | EP0641244A1 Treatment of acid gas using hybrid membrane separation systems |
| 03/08/1995 | EP0444166B1 Disposable oxide carrier for scavenging hydrogen sulfide |
| 03/08/1995 | CN1099723A Decomposition for ammonium sulfate |
| 03/01/1995 | EP0640066A1 Methods for regenerating a sulfur scavenging compound from a product of a sulfur scavenging reaction. |
| 03/01/1995 | EP0640058A1 Method for removing hydrogen sulphide from a gas and recovering in the form of sulphur. |
| 03/01/1995 | EP0640005A1 Method for removing sulphur compounds from a residual gas such as a residual gas from a claus process sulphur plant, and recovering said compounds as sulphur. |
| 03/01/1995 | EP0640004A1 Method for the direct, high-selectivity, catalytic, oxidative conversion into sulphur of h2s present in a low concentration in a gas |
| 02/28/1995 | US5393325 Composite hydrogen separation metal membrane |
| 02/28/1995 | US5393225 Rotating tube heat treatment installation, in particular rotating tubular kiln, with indirect heat feed or dissipation |
| 02/22/1995 | EP0639665A1 Phosphate-free reducing and bleaching agent |
| 02/21/1995 | US5391781 Methods for dispersing sulfur in aqueous systems |
| 02/21/1995 | US5391278 Process for removal of hydrogen sulfide |
| 02/21/1995 | US5391267 Electrolysis |
| 02/21/1995 | CA2130378A1 Phosphate-free reduction bleaching formulation |
| 02/16/1995 | WO1995004588A1 Method for removing hydrogen sulphide from mixture gas containing hydrogen sulphide and excessive amounts of steam and ammonia |
| 02/16/1995 | DE4326032A1 Process and plant for the desulphurisation of hydrogen-sulphide-containing exhaust gases |
| 02/15/1995 | EP0638515A2 Process for upgrading of diluted acid |
| 02/14/1995 | US5389354 Continuous processing |
| 02/14/1995 | US5389351 Contacting gas with absorbent composition of sulfur dioxide in nonaqueous solvent to convert hydrogen sulfide to water and sulfur, passing to aqueous catalytic scrubbing stage to remove remaining hydrogen sulfide |
| 02/13/1995 | CA2130212A1 Process for working up thin acid |
| 02/09/1995 | WO1995003994A1 Method for reclaiming metal sulfate-containing waste sulfuric acid |
| 02/09/1995 | CA2145986A1 Method for reclaiming metal sulfate-containing waste sulfuric acid |
| 02/08/1995 | EP0419539B1 Condensing sulfuric acid vapours to produce sulfuric acid |
| 02/07/1995 | US5387402 Consecutive rows of banks of cooling tubes are staggered; distance is selected to prevent penetration of catalyst bodies |
| 02/07/1995 | CA1334277C Apparatus and process for the generation of sulfur trioxide reagent for sulfonation of the surfaces of polymeric resins |
| 02/01/1995 | EP0636107A1 Process and apparatus for recovering sulphur from a gas stream containing hydrogen sulphide |
| 01/31/1995 | US5385713 Contacting liquor with base to adjust pH, contacting at elevated temperature with aluminum hydroxide or aluminum sulfate |