| Patents for C01B 17 - Sulfur; Compounds thereof (11,743) |
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| 08/17/1993 | CA1321362C Integrated process for the removal of sulfur compounds from fluid streams |
| 08/12/1993 | DE4203951A1 Desulphurising crude gas mixt. - by washing with detergent, stripping and then heat-regenerating the detergent |
| 08/10/1993 | US5234556 Irradiating a metalalkoxide solution to break the metal-alkoxy group bond; forming metal oxide prepolymer |
| 08/10/1993 | US5234546 Polysulfide production in white liquor |
| 08/03/1993 | US5232670 Catalytic converter |
| 07/28/1993 | EP0434686B1 Removal of nitric oxide from waste gases and recovery as nitric acid |
| 07/21/1993 | CN1074464A Particulate opacifying extender for polymer coatings |
| 07/21/1993 | CN1021661C Stabilized sulfur dissolving compositions |
| 07/20/1993 | US5229091 Combusting tail gas, absorbing sulfur oxides, regenerating absorbent with reducing gas, directing off gas to Claus process to recover sulfur |
| 07/20/1993 | US5229087 Process for the preparation of titanium dioxide |
| 07/20/1993 | US5229077 Sulfur rate control system |
| 07/20/1993 | US5228885 Process of concentrating a dilute sulfuric acid in a three-stage forced-circulation vacuum evaporation plant |
| 07/20/1993 | CA1320502C Polyalkyleneoxyamine catalysts for dialkyl disulfides and/or polysulfides used in dissolving sulfur |
| 07/13/1993 | US5226934 Introducing gas into tank with means for contacting with molten sulfur and containing molten sulfur pool maintained at 123-160 degrees C., contacting gas with molten sulfur at 123-160 degrees, removing elemental sulfur |
| 07/08/1993 | WO1993013362A1 Treatment of liquid waste material |
| 07/08/1993 | WO1993013184A1 Process for treating gases obtained by coal gasification, residue gasification, refuse gasification or oil gasification |
| 07/07/1993 | CN1073924A Method and device for concentration of waste toluene-nitrified acid by pressure-reducing cauldron and hot air |
| 06/30/1993 | EP0549319A1 Colloidal suplur particle opacifying extender for polymer coatings |
| 06/30/1993 | CN1073657A Purification method of sulphur |
| 06/29/1993 | US5223237 Process for removing sulfur oxides from a gas stream |
| 06/29/1993 | CA1319492C Treatment of waste material |
| 06/24/1993 | CA2086045A1 Particulate opacifying extender for polymer coatings |
| 06/16/1993 | EP0546527A1 Process for the purification of a H2S and nitrogen containing crude gas |
| 06/16/1993 | EP0546095A1 Method for preparing basic aluminum chlorosulfate |
| 06/15/1993 | US5219542 Process for removing sulfur compounds |
| 06/10/1993 | WO1993010896A1 Chromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors |
| 06/10/1993 | WO1993010883A1 Lean acid gas enrichment with selective hindered amines |
| 06/09/1993 | EP0545162A1 Process for the separation of organic phosphor compounds and other impurities from diluted sulfuric acid |
| 06/09/1993 | CN1072905A Process for separation of organic phosphorous compound and other impurity from dilute surfuric acid |
| 06/09/1993 | CN1021115C Polyalky leneoxyamine catalysts for dialkyl disulfides and/or polysulfides used in dissolving sulfur |
| 06/08/1993 | CA1318907C Alkaline earth metal spinel/kaolin clays and processes for making and using same |
| 06/03/1993 | CA2083899A1 Method of and an apparatus for recovering sulphur dioxide from the chemical circulation of a sulphate pulp mill |
| 06/03/1993 | CA2083734A1 Process for removing organic phosphorus compounds and other impurities from dilute sulfuric acid |
| 06/01/1993 | US5215953 Catalyst for the oxidation of sulfur dioxide and method for the production of the catalyst |
| 06/01/1993 | US5215728 Absorbing by catalytic polyvalent metal redox solution, regenerating the reduced redox solution by oxidation |
| 06/01/1993 | US5214932 Hermetically sealed electric driven gas compressor - expander for refrigeration |
| 05/27/1993 | WO1993010039A1 Conversion of hydrogen sulfide to sulfur and hydrogen |
| 05/25/1993 | CA1318257C Process for the separation of solids from suspensions having a high solids content |
| 05/25/1993 | CA1318107C Process for producing pure sodium polysulfides directly from higher sodium polysulphides and sodium |
| 05/19/1993 | EP0541687A1 Intimate mixture of calcium and phosphate sources as precursor to hydroxyapatite. |
| 05/19/1993 | CN1072154A Process for recovering sulfuric acid from metallic sulfate-containing exhaust sulfuric acid. |
| 05/18/1993 | US5212134 Calcination of iron oxide pyrite and thermoplastic polymer |
| 05/18/1993 | US5211923 Hydrogen and sulfur recovery from hydrogen sulfide wastes |
| 05/12/1993 | EP0541002A1 Process for recovering sulfuric acid from metal sulfate-containing waste sulfuric acid |
| 05/09/1993 | CA2082256A1 Process for recovering sulfuric acid from metallic sulfate-containing exhaust sulfuric acid |
| 05/06/1993 | DE4135728A1 Sulphur tri:oxide prepn. used for sulphonation reactions - by reaction of sulphite with halogen in presence of water |
| 05/05/1993 | EP0540072A1 Process for the dissociation of material containing potassium sulphate and sodium sulphate |
| 05/05/1993 | CN2131854Y Sinking water-cooled absorption-discharge unit |
| 05/04/1993 | US5207927 Catalytic oxidation using metal phthalocyanine; sulfation; water pollution control |
| 05/04/1993 | CA1317089C Economic recovery and utilization of boiler flue gas pollutants |
| 04/21/1993 | EP0368978B1 Process and device for removal of h2s |
| 04/20/1993 | US5204082 Sulfur dioxide generation by submerged combustion and reduced thermal cycling by use of a hot recycle of sulfur |
| 04/14/1993 | CN1070961A Acid made technology by utilizing acid bath evaporating secondary steam |
| 04/14/1993 | CN1070839A Process of purifying loaded waste gases from oil burning device |
| 04/13/1993 | US5202107 Controlled oxidation of acid gas; catalytic hydrolysis |
| 03/31/1993 | EP0534513A1 Process for treatment of spent sulfuric acid |
| 03/30/1993 | US5198206 Condensing sulfuric acid vapors to produce sulfuric acid |
| 03/28/1993 | CA2078934A1 Method of treating material containing sodium sulphate and/or sodium carbonate in a pulp mill |
| 03/23/1993 | US5196176 Sulfur reducing bacteria and sulfur oxidizing bacteria |
| 03/23/1993 | US5196038 Catalytic converters to oxidize air and sulfur dioxide into sulfur trioxide; pollution control |
| 03/18/1993 | WO1993004765A1 Process for purifying flue gas |
| 03/18/1993 | DE4136678A1 Calciner gas heat utilisation in titanium di:oxide mfr. by sulphate process - by indirect heat exchange of unpurified gas with medium used to concentrate acid |
| 03/16/1993 | US5194239 Oxygen-based noncatalytic sulfuric acid process |
| 03/11/1993 | DE4130132A1 Hydrogen sulphide absorption from gas with high carbon di:oxide content - in ferric amino-carboxylate soln. stabilised with alkali hydrogen carbonate to avoid oxidative decomposition of amino-carboxylate |
| 03/11/1993 | DE4129566A1 Absorption of hydrogen sulphide from waste contg. carbon di:sulphide from viscose prodn. - in sodium hydroxide soln. contg. silicone oil or paraffin or alcohol |
| 03/09/1993 | CA1314128C Method for preparing gaseous metallic fluoride |
| 03/04/1993 | WO1993004000A1 Production of sodium hydroxide |
| 03/04/1993 | WO1993003823A1 Process for the purification of contaminated exhaust gases from incineration plants |
| 03/04/1993 | DE4129166A1 Verfahren zur reinigung von rauchgas Method for cleaning of flue gas |
| 02/24/1993 | EP0527908A1 New formulations for iron oxides dissolution |
| 02/23/1993 | US5188807 Apparatus for producing high yield sodium hydrosulfite |
| 02/18/1993 | WO1993002961A1 Removal of hydrogen sulphide |
| 02/18/1993 | DE4127075A1 Verfahren zum reinigen von belasteten abgasen von verbrennungsanlagen Incinerators method for cleaning of contaminated waste gases from |
| 02/18/1993 | CA2114431A1 Removal of hydrogen sulphide |
| 02/17/1993 | CA2094287A1 Process for the purification of contaminated exhaust gases from incineration plants |
| 02/16/1993 | US5186848 Preparing sulfur solvent compositions comprising treating a sulfide and polyalkyleneoxyamine or polyalkyleneoxypolyamine mixture with an alkylamine or alkanolamine |
| 02/10/1993 | EP0526628A1 Oxygen-based noncatalytic sulfuric acid process |
| 02/10/1993 | EP0526469A1 Metal extraction by ion exchange |
| 02/09/1993 | US5185140 Process for removing sulphur compounds from a residual gas |
| 02/04/1993 | WO1993002229A1 Removal of thiosulfate from hydrosulfite solutions |
| 02/03/1993 | EP0525931A2 Process and apparatus for generating elemental sulfur and re-usable metal oxide from spent metal sulfide sorbents |
| 02/02/1993 | CA1313369C Sulfur dissolving composition |
| 01/20/1993 | EP0524035A1 Catalyst and process for sulfur compounds containing gases |
| 01/20/1993 | EP0524017A1 Sulfur dioxide generation by submerged combustion and reduced thermal cycling by use of a hot recycle of sulfur |
| 01/20/1993 | EP0523842A1 Apparatus for production of sparingly water-soluble salt crystal grains |
| 01/20/1993 | EP0506741A4 Process of reclaiming battery acid from lead acid batteries |
| 01/19/1993 | US5180572 Conversion of hydrogen sulfide to sulfur and hydrogen |
| 01/19/1993 | CA1312721C Process for removing sulfur moieties from claus tail-gas |
| 01/13/1993 | EP0522918A1 Process for the preparation of sulfides and amino acids labelled with sulfur-35 |
| 01/13/1993 | EP0522547A2 Carbonyl-containing degradable chelants, uses and compositions thereof |
| 01/13/1993 | EP0204710B1 Method for the removal of sulphur oxides from a flue gas with a baghouse as a secondary reactor |
| 01/13/1993 | CN1067829A Catalyst and process for treating sulfur coupound-containing gases |
| 01/13/1993 | CA2073578A1 Carbonyl-containing degradable chelants, uses and compositions thereof |
| 01/12/1993 | US5178842 Method for precipitating and separating metals |
| 01/12/1993 | CA1312447C Method for recovering sulfur from a feed gas stream containing hydrogen sulfide |
| 01/09/1993 | CA2055930A1 Process and apparatus for generating elemental sulfur and reusable metal oxide from spent metal sulfide sorbents |
| 01/07/1993 | EP0521308A1 Process for joint treatment of NH3 and/or H2S containing process waste waters as well as sodium sulfide containing caustic soda |
| 01/07/1993 | EP0521075A1 Methods for recovering high grade process energy from a contact sulfuric acid process. |
| 01/07/1993 | EP0484534A4 Apparatus for carrying out a catalytic process in a fluidized bed |
| 01/05/1993 | US5176896 Apparatus and method for generation of control signal for Claus process optimization |