Patents
Patents for C01B 17 - Sulfur; Compounds thereof (11,743)
06/1992
06/23/1992CA1303815C Method for neutralization treatment of sulfuric acid containing iron ions
06/23/1992CA1303814C Heat recovery from concentrated sulfuric acid
06/23/1992CA1303813C Process and apparatus for the production of sodium hydrosulfite
06/16/1992US5122359 Process for reprocessing sulfuric acid from phosphorous purification
06/16/1992US5122358 Process for the purification of exhaust gases
06/16/1992US5122357 Crystalline microporous metal oxysulfide compositions
06/16/1992US5122353 Using alkali and alkaline earth sorbents
06/16/1992US5122351 Method and apparatus for removing H2 S from a process gas and recovering sulfur
06/16/1992CA1303481C Process for drying sulfur dioxide
06/16/1992CA1303333C Sulfur dioxide removal from gas streams using hydroxyalkyl substituted piperazinones
06/16/1992CA1303332C Process of simultaneously removing nitrogen oxides and sulfur dioxide from an oxygen-containing exhaust gas
06/16/1992CA1303331C Three catalytic reactor extended claus process and apparatus
06/11/1992WO1992009530A1 Precipitation of heavy-metal ions
06/09/1992CA1302684C Microporous membrane trickle bed reactor
06/05/1992WO1992010270A1 Process for the removal of sulphur compounds from gases
06/04/1992DE4138618A1 Sulphuric acid prodn. in auto-thermal 3-stage contact process - with min. emission by using hot gas from sulphur combustion for heating gas to third stage
06/03/1992EP0488477A1 Process for removing hydrogen sulphide from a sour gas
06/03/1992EP0444166A4 Disposable oxide carrier for scavenging hydrogen sulfide
06/03/1992CN1061579A Preliminary concentration method and device for associated thin acid in processing titania with sulphate process
06/03/1992CN1016864B Prodn method of sadium dithionite with improved purity and granularity
06/02/1992US5118490 Absorption of wet conversion gas
06/02/1992CA1302383C Transition metal dichalcogenide catalysts
05/1992
05/31/1992CA2056600A1 Process for removing hydrogen sulphide from a sour gas
05/29/1992CA2056199A1 Treatment of gas
05/27/1992EP0486676A1 PROCESS USING SORBENTS FOR THE REMOVAL OF SO x? FROM FLUE GAS AND OTHER GAS STREAMS.
05/27/1992DE4037326A1 Abtrennung von schwermetallionen Removal of heavy metal ions
05/27/1992CN1016773B Layered silicates and their synthesis
05/27/1992CN1016772B Layered metal oxides containing interlayer oxides and their synthesis
05/27/1992CN1016771B Layered metal chalcogenides containing interspathic polymeric chalcogenides
05/26/1992US5116798 Vanadium oxide and alkali salts
05/21/1992DE4036899A1 Sulphuric acid prodn. by oxidn. of sulphur di:oxide mixt. - using hydrogen peroxide for desulphurisation of gases arising from sulphite-treated grape juice
05/20/1992EP0485658A1 Method for purifying gaseous hydrides
05/20/1992CN1016677B Method for preparation of layered metal oxides containing interlayer oxides
05/19/1992US5114700 Electrically heated fluidized bed reactor and processes employing same
05/19/1992US5114699 Recovering sulfuric acid for use in wet process phosphoric acid plants and agitation to homogenize and separation of carbon solids
05/19/1992US5114698 Exposing to an amino material under pressure
05/19/1992US5114691 Process using sorbents for the removal of SOx from flue gas
05/19/1992US5114689 Integrated process for the removal of sulfur compounds from fluid streams
05/19/1992CA1300852C Claus reaction furnace
05/13/1992EP0484534A1 Apparatus for carrying out a catalytic process in a fluidized bed
05/13/1992CN1016598B Process of sulfuic acid from supse
05/12/1992US5112452 Removal of thiosulfate from hydrosulfite solutions
05/06/1992WO1992007792A1 Use of chlorous acid for removing sulfur dioxide from combustion gases
05/06/1992EP0484222A1 Process for the treatment of gases containing sulphur dioxide
05/06/1992EP0422066A4 Removal of sulfur dioxide (so 2?) from waste gases and recovery as sulfuric acid
05/06/1992CN1060865A Process for purifying high-temp. reducing gases
05/06/1992CA2095116A1 Use of chlorous acid for removing sulfur dioxide from combustion gases
05/05/1992US5110568 Stannosilicates and preparation thereof
05/05/1992CA1300122C Process for fast removal of hydrogen sulfur contained in liquid sulfur, and catalytic system for application of said process
05/05/1992CA1300117C Catalyst for the selective oxidation of sulfur containing compounds
05/05/1992CA1299842C Reducing regeneration effluent rate by supplemental cooling and oxidantintroduction during regeneration of metal oxide absorbent
05/05/1992CA1299839C Method for purifying high-temperature reducing gas
04/1992
04/28/1992US5108976 High-density and mean-porosity catalyst supported on a siliceous matrix, based on vanadium, iron, oxygen and alkali metal
04/28/1992US5108731 Droplets caught in special filter
04/28/1992US5108625 Process for removing sodium sulfate from aqueous buffer solutions
04/22/1992EP0481298A1 Water containing sodium dithionite compositions
04/22/1992EP0481281A2 Process for purifying high-temperature reducing gases
04/21/1992US5106607 Multilobar catalysts for the conversion of sulfur containing gaseous effluents
04/21/1992CA1298956C Utilization of sulphur dioxide for energy production
04/20/1992CA2052871A1 Sodium dithionite preparation containing water
04/15/1992EP0479891A1 Removal of hydrogen sulfide from produced fluids
04/15/1992CN1060226A Devulcanizing agent prepared from waste acidic liquid and preparing process thereof
04/14/1992US5104445 Extracting metals from ore by contacting with a solid salt to obtain a mixture, heating and chlorination and recovering the metals
04/07/1992US5102635 Method for improving the long-term stability of H2 S absorption-oxidation process solutions
04/06/1992CA2027048A1 Demister candle assembly
04/01/1992EP0477338A1 Process for the treatment of water containing sulphur compounds.
04/01/1992CN1016068B Sulfur dissolving composition
03/1992
03/31/1992US5100640 Furnaces Connected in Parallel
03/25/1992EP0476744A1 Process for the concentration of diluted acid in a three-stage vacuum evaporator system
03/25/1992EP0476385A1 Process for the preparation of a granular insoluble sulfur having improved flowability, vulcanizing agent and rubber composition containing said sulfur
03/25/1992EP0476172A1 Process for preconcentrating diluted acid obtained during titanium dioxide preparation according to the sulphate process and use of apparatus for this process
03/25/1992CN1015980B Process for separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids
03/24/1992US5098679 Purification of alkali metal hydrosulfite solutions
03/24/1992CA1297904C Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids
03/24/1992CA1297903C Process for the separation of sulphuric acid from aqueous mixtures thereof with paraffin-sulphonic acids
03/24/1992CA1297680C Method for recovering vanadium from residues from the combustion of petroleum fractions
03/24/1992CA1297659C Sulfur recovery process using metal oxide absorbent with regenerator recycle to claus catalytic reactor
03/21/1992CA2050710A1 Preconcentration of sp spent acid with non-purified calcination waste gases in a venturi scrubber
03/17/1992US5096691 Treating a stream with an aqueous solution of a ferric salt of an aminopolycarboxy compound, a buffer and water-soluble hydroxyl-scavenger to form solid sulfur
03/17/1992US5096683 Process of combusting an H2 S-containing gas
03/17/1992US5096675 Front and rear chambers each having inner/outer entrance and exit; reaction of hydrogen sulfide and calcium carbonate
03/17/1992US5096571 Recovery of sulfur from native ores
03/17/1992CA1297269C Dual combustion oxygen-enriched claus sulfur plant
03/17/1992CA1297268C Simultaneous separation and conversion to sulfur of h s
03/17/1992CA1297267C Method and apparatus for making sulphuric acid
03/10/1992US5094833 Sodium borohydride, sodium hydroxide, sulfur dioxide and sodium bisulfite
03/10/1992US5094826 Method and arrangement for the denitrification and desulfurization of hot waste gases, particularly from furnaces
03/10/1992US5094824 Desulfurization
03/10/1992CA1297212C Method of oxidizing sulfide-containing liquor
03/10/1992CA1296867C Process for selectively removing sulfur dioxide
03/10/1992CA1296866C H s removal from gas streams
03/08/1992CA2050838A1 Process for making improved sodium dithionite suspensions
03/05/1992CA2024525A1 Process for removing hydrogen sulfide from a gaseous mixture and producing sulfur therefrom
03/04/1992EP0464091A4 Improved sulfur dioxide generator
03/03/1992US5093617 Hall-effect sensor having integrally molded frame with printed conductor thereon
03/03/1992US5093090 Process for separating antimony from acidic solutions containing same with an organic diluent containing a polyol
03/03/1992CA1296508C Removal of water vapor diluent after regeneration of metal oxide absorbent to reduce recycle stream
03/01/1992WO1992004278A1 Method for preparing basic aluminum chlorosulfate
03/01/1992CA2090413A1 Method for preparing basic aluminum chlorosulfate
03/01/1992CA2050060A1 Process for preparation of granular insoluble sulfur having improved flowability, vulcanizing agent and rubber composition comprising same
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