Patents
Patents for C01B 17 - Sulfur; Compounds thereof (11,743)
10/1979
10/09/1979CA1063810A1 Process and apparatus for treatment of a sulfur containing material
10/09/1979CA1063776A1 Method for working-up shale
10/02/1979CA1063321A1 Hydrogen sulphide removal process
10/02/1979CA1063320A1 Process for producing sulfur from sulfur dioxide
09/1979
09/25/1979US4169136 Catalytic incineration of hydrogen sulfide from gas streams
09/25/1979US4169133 Process for recovering acidic gases collected during gas desulfurization
09/25/1979US4169054 Demetallization, evaporation, controlled cooling
09/25/1979CA1062881A1 Process and plant for recovering elementary sulfur
09/04/1979CA1061509A1 Stabilized sodium hydrosulfite composition and process for bleaching wood pulp therewith
08/1979
08/28/1979CA1061285A1 Electrolytically increasing sulfuric acid concentration in presence of chlorine containing oxidizing agent
08/22/1979EP0003531A1 Process for treating residual gases produced by burning hydrogen sulfide to elementary sulfur according to the Claus process
08/21/1979CA1060632A1 Purification of sulfuric acid containing acetic acid
08/14/1979US4164556 Reduction with methanol
08/14/1979US4164555 Pollution control system and method for the removal of sulfur oxides
08/14/1979US4164554 Method for converting calcium sulfoxy compounds into calcium carbonate compounds
08/14/1979US4164548 Process for removing SO2 from gases
08/14/1979US4164544 Using sintered manganese oxide-aluminum oxide pellets, regeneration of desulfurization agent by heating in oxidizing gas
08/14/1979US4164543 Process for regenerating brines containing sodium sulfites and sulfates
08/14/1979US4164441 Process and apparatus for concentrating corrosive liquid using radiant heat
08/14/1979US4164428 Containing mineral suspending agent and organosilane stabilizer; improved chemical resistance
08/14/1979CA1060183A1 Process for treating gases containing sulphur compounds
08/14/1979CA1060182A1 Method for removal of gaseous sulfur and nitrogen compounds from gas streams
08/09/1979WO1979000516A1 Soluble compound of vanadium
08/07/1979US4163776 Multistage removal of sulfur oxides
08/07/1979CA1059947A1 Process for producing aqueous solutions of sodium, ammonium and magnesium sulphite
08/07/1979CA1059943A1 Electrolytically forming peroxosulfuric acid to oxidize organic material in sulfuric acid
08/07/1979CA1059731A1 Method for the operation of a plant in which sulphur oxides are accepted in combination with a plant for the conversion of sulphur dioxide
08/07/1979CA1059727A1 Process of producing sulfuric acid
07/1979
07/31/1979US4163047 Process for producing sulfuric acid from waste acid and iron sulfate
07/31/1979US4163043 Treatment with ammonia and alkali metal hydroxide to form sulfides and carbonates, reaction with copper oxide to form copper sulfide, roasting
07/31/1979CA1059293A1 Process and apparatus for in situ melting of sulphur from solid sulphur storage block
07/24/1979US4162207 Process for the conversion of sulfur dioxide
07/24/1979US4162187 Process for production of sodium thiosulfate and sodium hydroxide
07/24/1979CA1058865A1 Sinter roasting of a sulphurous material
07/11/1979EP0002880A2 Regeneration of an absorbent liquid
07/11/1979EP0002737A1 A process for making sulfuric acid anhydride and, if desired, sulfuric acid and/or oleum
07/10/1979CA1057935A1 Process for the production of sulfur from mixtures of hydrogen sulfide and fixed nitrogen compounds
07/10/1979CA1057934A1 Process for the production of sulfur from sulfur dioxide extracted from gas streams
07/03/1979US4160013 Process for the oxidation of nitric oxide to nitrogen dioxide
07/03/1979CA1057506A1 Method of producing metallic lead and silver from their sulfides
06/1979
06/26/1979CA1057028A2 Process for producing sulfur from sulfur dioxide
06/26/1979CA1057026A1 Reduction of aqueous thiosulfate solutions
06/12/1979US4158048 Processes for conversion of sulfurous anhydride to sulfuric anhydride and vice versa with a Fe, Cu, alkali metal containing catalyst
06/12/1979US4158039 Pressure vessel for separating sulfur from an aqueous sulfur suspension
06/12/1979US4157988 Method and composition for removing sulfur dioxide from flue gases
06/12/1979US4157980 Hydrosulfite preparation
06/12/1979CA1056529A1 Method for plasticizing sulfur
06/12/1979CA1056127A1 Removal of sulfur compounds from gas streams
06/12/1979CA1056126A1 Process of producing sulfur
06/05/1979US4157381 Process for regeneration of sulfuric acid
06/05/1979CA1055920A1 Supported cobalt sulfate desulfurization catalyst
05/1979
05/30/1979EP0002109A1 A method for the preparation of thin photoconductive films and of solar cells employing said thin photoconductive films
05/30/1979EP0001971A1 Process for preparing hydroxylammonium salts in reactors made of stainless steel
05/29/1979US4156656 Preparation of hydrosulfides
05/22/1979US4155990 Process for removal and recovery of sulfide from coal gas
05/22/1979US4155989 Removal of nitric acid from nitric acid-sulfuric acid mixtures
05/22/1979US4155987 Claus tail gas recovery
05/22/1979US4155984 Recovery of H2 SO4 acid
05/22/1979US4155976 Apparatus and method for storing molten materials
05/22/1979US4155771 Plasticized sulfur with improved stability
05/17/1979WO1979000251A1 Adsorbent regeneration and gas separation utilizing dielectric heating
05/15/1979US4154399 Sulphur burner gun nozzle
05/08/1979US4153674 Sulfur recovery from gases rich in H2 S and CO2 as well as COS or organic sulfur
05/08/1979US4153670 Method of treating an alkali metal sulfide liquor
05/08/1979US4153628 Sulfur trioxide
05/08/1979US4153502 Reacting sodium sulphide and sodium sulfur-oxygen salts in the presence of carbon and oxygen
05/08/1979CA1053878A1 Process for removing contaminants from hot waste gas streams
05/01/1979US4152298 Alumina particles
04/1979
04/24/1979US4151234 Controlled cooling and solidification of melts
04/24/1979CA1053377A1 Semiconductor device
04/24/1979CA1052980A1 Process for the removal of sulfur dioxide from exhaust flue gases
04/17/1979US4150104 Method for removing hydrogen sulfide from gases and for obtaining elemental sulfur
04/17/1979US4150103 Foam prevention during the regeneration of waste sulfuric acid with aromatic nitro compounds
04/17/1979US4150094 Method of reacting I2 with a liquid and a gas
04/17/1979US4149837 Sulphur pelletizing apparatus
04/17/1979US4149836 Atomization
04/17/1979CA1052761A1 Process for regenerating a solid reactant
04/17/1979CA1052586A1 Process for oxidizing metal sulfides to elemental sulfur using activated carbon
04/17/1979CA1052537A1 Process and apparatus for the purification of coke oven gas
04/10/1979US4148868 Process for separating SO2 from a current of gas containing the same
04/10/1979US4148858 Nitrogen pxide compound
04/10/1979US4148760 Catalyst for oxidizing sulfur or sulfur compounds
04/04/1979EP0001226A2 Apparatus for determining the redox potential during the regeneration of contaminated, aqueous sulphuric-acid waste in Pauling apparatuses
04/03/1979US4147762 Formation of sulfur, reaction in the presence of steam
04/03/1979US4147756 Combustion gas scrubbing system
03/1979
03/27/1979US4146580 Reaction of sulfur with hydrogen, which is generated by partial of a hydrocarbon
03/27/1979US4146579 Process for converting sulfitic solutions by means of ammonium bisulfate with SO2 production
03/27/1979US4146463 Removal of carbon monoxide and sulfur oxides from refinery flue gases
03/13/1979US4144039 Selective absorption process of hydrogen sulphide and sulphur containing compounds from a gaseous mixture
03/07/1979EP0001027A2 Apparatus for the continuous and in situ measurement of the vesicular sulphuric acid content during the manufacture of sulphuric acid
03/07/1979EP0000935A1 Process for the purification of sulfuric acids
03/06/1979US4143122 Method of processing the residual gases from claus plants or other sulfur-producing plants
02/1979
02/27/1979US4141962 Catalysts for treating gases containing sulphur compounds
02/27/1979US4141961 Production of H2 S from SO2 obtained from flue gas
02/21/1979EP0000707A1 Process and plant for removing sulphur dioxide from gaseous streams with recovery of sulphuric acid by the nitric oxide process
02/20/1979US4140752 Oxidized to sulfur trioxide, adsorbed on activated carbon composition
02/20/1979US4140751 Boiling the aqueous solution
02/20/1979US4140746 Recovery of chlorine values from iron chloride by-produced in chlorination of ilmenite and the like
02/20/1979CA1049198A1 Sulfur product and process
02/20/1979CA1048737A1 Process for the concentration of diluted salt-containing sulphuric acid