Patents
Sitemap › C01 - Inorganic chemistry › C01B - Non-metallic elements; Compounds thereof › C01B 17 - Sulfur; Compounds thereof
Patents for C01B 17 - Sulfur; Compounds thereof (11,743)
12/1980
12/02/1980CA1090534A1 Production of h.sub.2s from so.sub.2 obtained from flue gas
12/02/1980CA1090533A1 Process for hydrogen sulfide production
12/02/1980CA1090532A1 Production of polysulphide pulping liquor
11/1980
11/26/1980EP0019174A2 Process for the preparation of a catalyst for the oxidation of sulfur dioxide
11/25/1980US4235853 Method for sulfur dioxide control II
11/25/1980US4235852 Process for treating an exhaust gas containing nitrogen oxides and sulfur oxides
11/25/1980US4235605 Synthesizing gas from coal via synergetic reactions with steam and sulfur
11/25/1980CA1090099A1 Process of thermally decomposing salts which contain mainly iron sulfate
11/25/1980CA1090096A1 Treatment of a hydrogen sulfide-containing gas
11/25/1980CA1090095A1 Method for sealing leakage across valves in a sulfur recovery plant
11/18/1980US4234552 Stabilization of sulphur
11/18/1980US4234547 Flue gas treatment
11/18/1980US4234318 Process for granulation of sulfur
11/12/1980EP0018635A2 Control of thiosulfate in wet desulfurization process solutions
11/11/1980US4233254 Thermosetting resin binder
11/11/1980US4233185 Catalysts for oxidation and reduction
11/11/1980CA1089197A1 Modular system for reducing sulfur dioxide
11/11/1980CA1089196A1 Process of thermally treating solids
11/11/1980CA1089190A1 Catalytic conversion of an ammonium sulphate to sulphur dioxyde and ammonia
11/04/1980US4231996 Method for producing ammonia and hydrogen sulfide
10/1980
10/29/1980EP0017797A1 Rotating tubular reactor for the heat-treatment of material and process using this rotating tubular reactor
10/28/1980US4230184 Sulfur extraction method
10/28/1980CA1088276A1 Process for removal of hydrogen sulfide and hydrogen polysulfide from liquid sulfur
10/21/1980CA1087831A1 Claus tail gas recovery
10/15/1980EP0016987A1 Process for concentrating and purifying sulfuric acid
10/07/1980US4226617 Method for treating a mineral sulfide
10/01/1980EP0016631A1 Removal of hydrogen sulphide and carbonyl sulphide from gas stream
10/01/1980EP0016290A1 Continuous process for the removal of sulphur dioxide from waste gases, and hydrogen and sulphuric acid produced thereby
10/01/1980EP0015938A1 Recovery of elemental sulfur and metal values from tailings from copper recovery processes
09/1980
09/30/1980CA1086480A1 Sulfur dioxide reduction
09/30/1980CA1086478A1 Reduction of sulfur dioxide with coal
09/30/1980CA1086477A1 Process for so.sub.2 reduction
09/30/1980CA1086476A1 Process for regeneration of sulfuric acid
09/23/1980US4223735 Scrubbing sulfur oxides from flue gas
09/16/1980CA1085808A1 Process for removing sulphur from a gas
09/16/1980CA1085589A1 Recovery of chlorine values from iron chloride by- produced in chlorination of ilmenite and the like
09/16/1980CA1085583A1 Process of concentrating dilute phosphoric acid
09/09/1980US4221828 Process of producing metal sulfide powder coated with copper
09/02/1980US4220634 Process for converting ammonium imidodisulfate, ammonium sulfamate and ammonium dithionate to sulfur dioxide and ammonia
09/02/1980US4220505 Separation of hydrogen sulfide from fluid streams
09/02/1980CA1084671A1 Production of elemental sulphur
09/02/1980CA1084657A1 Stabilized solutions of sodium dithionite
08/1980
08/26/1980US4219537 Pollution control
08/26/1980CA1084276A1 Decomposition leach of sulfide ores with chlorine and oxygen
08/19/1980US4218431 Removal of sulfide contaminants from carbonate waters with production of CO2 -free H2 S
08/19/1980US4218429 Reduction of sulfur dioxide with formate radical
08/19/1980CA1083813A2 Means and method for processing cement raw materials containing fuel of high volatile content
08/19/1980CA1083779A1 Process and means for gas conditioning
08/06/1980EP0014052A1 Catalyst for the oxidation of sulfur dioxide to sulfur trioxide, processes for its preparation, and its use
08/05/1980US4216189 Absorption in aqueous solution of sodium sulfite
08/05/1980US4215996 Controlling sulfur particle hardness
07/1980
07/29/1980CA1082467A1 Method of recovering non-ferrous metals from sulphidic materials
07/22/1980US4213958 Production of sulphur trioxide, sulphuric acid and oleum
07/22/1980US4213793 Dissolving separating and crystallizing sulfur
07/15/1980US4212855 From sulfur dioxide and water vapor-containing gas, drying, cooling
07/15/1980US4212851 Regeneration of sulfided dolomite
07/08/1980US4211761 Scrubbing, amine salts, ion exchanging
07/01/1980US4210627 Method for increasing the hydrogen sulphide concentration in an acid gas
07/01/1980US4210502 Process for recovery of waste H2 SO4 and HCl
07/01/1980US4210458 Plasticized sulfur with improved thixotropy
07/01/1980CA1080694A1 Method and apparatus for cooling molten sulphur
07/01/1980CA1080445A1 Sulphur remelting apparatus and method
07/01/1980CA1080443A1 Absorption of sulfur oxides from hot gases
07/01/1980CA1080441A1 Catalytic process for removing sulfur dioxide from gas streams
06/1980
06/24/1980CA1080205A1 Active and durable sulfuric acid catalyst
06/24/1980CA1079905A1 Sulphur pelletizing
06/17/1980US4208396 Containing sulfur dioxide
06/17/1980US4208395 Removal of sulfur dioxide from flue gas
06/17/1980US4208390 Process for the recovery of ammonia and sulphur dioxide from a contaminated ammonium salt of sulphuric acid
06/17/1980CA1079492A1 Process for removing sulfur dioxide from a gas stream
06/17/1980CA1079482A1 Method of separating sulfuric acid from neutral sodium sulphate
06/17/1980CA1079481A1 Process and apparatus for prevention of corrosion in a multiple contact-multiple absorption sulfuric acid manufacturing operation
06/10/1980US4207305 Hexacoordinated ruthenium moderated production of hydrogen peroxide and sulfur from oxygen and hydrogen sulfide
06/10/1980US4207304 Process for sulfur production
06/10/1980US4207299 Sulphur dioxide removal process
06/10/1980US4207298 High temperature removal of H2 S from reducing gas
06/10/1980US4207292 Pollution control fro hydrocarbon fuels especially coal
06/10/1980CA1079030A1 Sulfur dioxide scrubbing system
06/10/1980CA1079029A1 Process of increasing the yield in the production of sulfure
06/03/1980US4206194 Reducing the consumption of anthraquinone disulfonate in stretford solutions
06/03/1980US4206181 Pressure vessel for separating sulfur from an aqueous sulfur suspension
06/03/1980US4206086 Active and durable sulfuric acid catalyst
06/03/1980CA1078919A1 Solid electrolytes for dry cells and batteries
06/03/1980CA1078583A1 Process for preparing sulfur dioxide
06/03/1980CA1078581A1 Method of treating alkali metal sulfide and carbonate mixtures
05/1980
05/28/1980EP0011517A2 Process and apparatus for removing hydrogen sulfide from gas streams
05/28/1980EP0011384A1 Stabilised insoluble sulphur, its preparation and use
05/28/1980EP0011228A1 Process for the removal of undesirable gaseous components from hot exhaust gases
05/27/1980US4205050 Method of reducing corrosion in sour gas sweetening systems
05/27/1980US4204933 Electrocoating process for producing a semiconducting film
05/20/1980US4203625 Apparatus for sulfur melting by lateral displacement of heating element
05/20/1980CA1077915A1 Method and composition for removing sulfur dioxide from flue gases
05/20/1980CA1077914A1 Process for the removal of so2 from a stack gas absorptive medium for use in process and process for preparing the absorptive medium
05/20/1980CA1077677A1 Process for preparing sulfur dioxide from sulfur and oxygen
05/14/1980EP0010899A1 Process for concentrating dilute sulphuric acid in an evaporator
05/13/1980US4202869 Process for the desulfurization of flue gases
05/13/1980US4202864 Geothermal
05/06/1980US4201759 Method for regenerating calcium sulfoxy compounds produced in the combustion of carbonaceous fuels in fluidized beds
05/06/1980US4201755 Multistage, multizonal
05/06/1980US4201754 Method for the conversion of calcium sulfoxy compounds into calcium carbonate compounds in sulfur oxide treatment processes
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