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  • C01B17/00
    		•  Sulfur; Compounds thereof HB CC 4G043
  • C01B17/00@C
    		•  Preparation pellets, fragments or other molding (colloidal sulfur or sulfur powder R 17/10) HB CC 4G043
  • C01B17/00@D
    		•  .By initially splitting into liquid sulfur and droplets and then solidifying thereafter HB CC 4G043
  • C01B17/00@Z
    		•  Others HB CC 4G043
  • C01B17/02
    		•  .Preparation of sulfur; Purification HB CC 4G043
  • C01B17/027
    		•  ..Recovery of sulfur from material containing elemental sulfur, e.g. luxmasses; Purification [3] HB CC 4G043
  • C01B17/027@A
    		•  By evaporation HB CC 4G043
  • C01B17/027@E
    		•  .By adding substances HB CC 4G043
  • C01B17/027@M
    		•  By melting HB CC 4G043
  • C01B17/027@R
    		•  .By adding substances (excluding water, water vapor or inert gases) HB CC 4G043
  • C01B17/027@Z
    		•  Others HB CC 4G043
  • C01B17/033
    		•  ...using a liquid extractant [3] HB CC 4G043
  • C01B17/04
    		•  ..from gaseous sulfur compounds including gaseous sulfides HB CC 4G043
  • C01B17/04@A
    		•  From gases containing SOx (from gases containing compounds with nitrogen, R X) HB CC 4G043
  • C01B17/04@C
    		•  .Containing reactions between SOx and gases or liquid reducers (H2S as the gases reducer R M to V; Tail gas processing by Klaus method R V; Wet method 17/05) HB CC 4G043
  • C01B17/04@E
    		•  .Including reactions between SOx and solid reducers HB CC 4G043
  • C01B17/04@F
    		•  ..Solid reducers; Pre- or post-processing thereof; supply or discharge thereof (combined with Recovery or releasing process of waste gases R K) HB CC 4G043
  • C01B17/04@H
    		•  ..Gas treatment after reaction (combined with recovery or releasing process of waste gases R K or L) HB CC 4G043
  • C01B17/04@W
    		•  ...Processing by Klaus process ( operation of reduction process thereof) HB CC 4G043
  • C01B17/04@K
    		•  ..Combined recovery or releasing processes of waste gases (Recovery of sulfur rather than emitting SOx from the absorbed absorber R E) HB CC 4G043
  • C01B17/04@L
    		•  ...Diversion of carbon substances during recovery, releasing or reducing process of waste gases HB CC 4G043
  • C01B17/04@M
    		•  From gases containing H2S (from gases containing N R X) HB CC 4G043
  • C01B17/04@N
    		•  .Including reactions between H2S and SOx or O2 (H2S manufactured by the reduction of SOx R A to L) HB CC 4G043
  • C01B17/04@Q
    		•  ..Catalyst -free combustion reaction processes HB CC 4G043
  • C01B17/04@R
    		•  ..Catalyst reaction processes HB CC 4G043
  • C01B17/04@T
    		•  ...Reaction at dew point of sulfur (CBA method) (Dew point of sulfur is 444.6 degrees Celsius) HB CC 4G043
  • C01B17/04@V
    		•  ..Treatment of gases after reaction (SCOT method; CBA method R T) HB CC 4G043
  • C01B17/04@X
    		•  From gaseous sulfur compounds containing nitrogen compounds HB CC 4G043
  • C01B17/04@Z
    		•  Others (H2S + H2O2 R S + 2H2O) HB CC 4G043
  • C01B17/05
    		•  ...by wet processes [3] HB CC 4G043
  • C01B17/05@A
    		•  From gases containing H2S and SOx or O2 (assign the solution constituent absorbed to the last optimum item.) HB CC 4G043
  • C01B17/05@B
    		•  .In liquids containing alkali metals, alkali earth metals or ammonium HB CC 4G043
  • C01B17/05@E
    		•  .In liquids containing heavy metals HB CC 4G043
  • C01B17/05@G
    		•  .In liquids containing organic compounds HB CC 4G043
  • C01B17/05@J
    		•  ..In liquids containing metal chelated compounds HB CC 4G043
  • C01B17/05@L
    		•  ..In liquids containing aromatic nitro compounds HB CC 4G043
  • C01B17/05@N
    		•  ..In liquids containing quinones HB CC 4G043
  • C01B17/05@Z
    		•  Others HB CC 4G043
  • C01B17/06
    		•  ..from non-gaseous sulfides or materials containing such sulfides, e.g. ores HB CC 4G043
  • C01B17/06@A
    		•  By wet processes HB CC 4G043
  • C01B17/06@B
    		•  .From gases containing SOx or O2 HB CC 4G043
  • C01B17/06@Z
    		•  Others HB CC 4G043
  • C01B17/10
    		•  ..Finely-divided sulfur, e.g. sublimed sulfur, flowers of sulfur HB CC 4G043
  • C01B17/12
    		•  ..Insoluble sulfur (mu-sulfur) HB CC 4G043
  • C01B17/16
    		•  .Hydrogen sulfides HB CC 4G043
  • C01B17/16@A
    		•  Preparation by dry processes (regeneration by emitting H2S in H2S absorbers R N) HB CC 4G043
  • C01B17/16@B
    		•  .From gaseous sulfur compounds HB CC 4G043
  • C01B17/16@D
    		•  ..From gases containing SOx HB CC 4G043
  • C01B17/16@F
    		•  Preparation by wet processes; Preparation in melts HB CC 4G043
  • C01B17/16@H
    		•  .In water soluble media (spraying solution containing sulfur; regeneration by emitting H2S in H2S absorbing liquids R P) HB CC 4G043
  • C01B17/16@M
    		•  Separation; purification HB CC 4G043
  • C01B17/16@N
    		•  .Adsorption, separation and regeneration of hydrogen sulfide from gases HB CC 4G043
  • C01B17/16@P
    		•  ..By wet processes HB CC 4G043
  • C01B17/16@Z
    		•  Others HB CC 4G043
  • C01B17/18
    		•  ..Hydrogen polysulfides HB CC 4G043
  • C01B17/20
    		•  .Methods for preparing sulfides or polysulfides, in general (ammonium sulfides or polysulfides C01C; sulfides or polysulfides of metals, other than alkali metals, magnesium, calcium, strontium, and barium, see the relevant groups of subclasses C01F or C01G, according to the metal) HB CC 4G043
  • C01B17/22
    		•  .Alkali metal sulfides or polysulfides HB CC 4G043
  • C01B17/24
    		•  ..Preparation by reduction HB CC 4G043
  • C01B17/26
    		•  ...with carbon HB CC 4G043
  • C01B17/28
    		•  ...with reducing gases HB CC 4G043
  • C01B17/30
    		•  ..Preparation from sodium or potassium amalgam with sulfur or sulfides HB CC 4G043
  • C01B17/32
    		•  ..Hydrosulfides of sodium or potassium HB CC 4G043
  • C01B17/34
    		•  ..Polysulfides of sodium or potassium HB CC 4G043
  • C01B17/36
    		•  ..Purification HB CC 4G043
  • C01B17/38
    		•  ..Dehydration HB CC 4G043
  • C01B17/40
    		•  ..Making shaped products, e.g. granules HB CC 4G043
  • C01B17/42
    		•  .Sulfides or polysulfides of magnesium, calcium, strontium, or barium HB CC 4G043
  • C01B17/43
    		•  ..from oxides or hydroxides with sulfur or hydrogen sulfide HB CC 4G043
  • C01B17/44
    		•  ..by reduction of sulfates HB CC 4G043
  • C01B17/45
    		•  .Compounds containing sulfur and halogen, with or without oxygen HB CC 4G043
  • C01B17/45@A
    		•  Halogenated sulfur HB CC 4G043
  • C01B17/45@G
    		•  .Containing chlorine HB CC 4G043
  • C01B17/45@Z
    		•  Others HB CC 4G043
  • C01B17/46
    		•  .Compounds containing sulfur, halogen, hydrogen, and oxygen HB CC 4G043
  • C01B17/48
    		•  .Sulfur dioxide; Sulfurous acid HB CC 4G043
  • C01B17/50
    		•  ..Preparation of sulfur dioxide HB CC 4G043
  • C01B17/50@A
    		•  From non-gaseous sulfur compounds (from H2SO4) HB CC 4G043
  • C01B17/50@C
    		•  .From non-gaseous sulfur compounds containing ammonium (from imid sulfuric acids; regeneration by emitting SO2 of liquids after absorbing SOx R 17/60 B) HB CC 4G043
  • C01B17/50@E
    		•  .From non-gaseous sulfur compounds containing metals (by roasting R 17/52; regeneration by emitting SO2 of liquids after absorbing SOx R 17/60 A to P) HB CC 4G043
  • C01B17/50@G
    		•  ..From non-gaseous sulfur containing heavy metals HB CC 4G043
  • C01B17/50@M
    		•  From gaseous sulfur compounds HB CC 4G043
  • C01B17/50@N
    		•  .From SO3 (S + SO3 R Z) HB CC 4G043
  • C01B17/50@Z
    		•  Others HB CC 4G043
  • C01B17/52
    		•  ... by roasting sulfides (preliminary treatment of ores or scrap C22B1/00) HB CC 4G043
  • C01B17/52@A
    		•  By fluidized roaster (vortex bed) HB CC 4G043
  • C01B17/52@Z
    		•  Others HB CC 4G043
  • C01B17/54
    		•  ...by burning elemental sulfur HB CC 4G043
  • C01B17/54@A
    		•  By melting sulfur HB CC 4G043
  • C01B17/54@Z
    		•  Others HB CC 4G043
  • C01B17/56
    		•  ...Separation; Purification HB CC 4G043
  • C01B17/56@A
    		•  Removal of impurities by cleaning (rinsing of roasted gas containing SOx, dust removal by pickling, cooling or dehydration HB CC 4G043
  • C01B17/56@E
    		•  .By cleaning liquids containing additives HB CC 4G043
  • C01B17/56@Z
    		•  Others HB CC 4G043
  • C01B17/58
    		•  ...Recovery of sulfur dioxide from acid tar or the like HB CC 4G043
  • C01B17/60
    		•  ...Isolation of sulfur dioxide from gases HB CC 4G043
  • C01B17/60@A
    		•  By wet processes HB CC 4G043
  • C01B17/60@B
    		•  .By alkali metals, alkali earth metals or liquids containing ammonium HB CC 4G043
  • C01B17/60@G
    		•  ..Emission of SO2 by adding acidic substances e.g. heavy sulfites HB CC 4G043
  • C01B17/60@J
    		•  ..Emission of SO2 by separation or decomposition of sulfuric compounds HB CC 4G043
  • C01B17/60@M
    		•  .By liquids containing heavy metals HB CC 4G043
  • C01B17/60@P
    		•  .By liquids containing organic compounds HB CC 4G043
  • C01B17/60@Z
    		•  Others HB CC 4G043
  • C01B17/62
    		•  .Methods of preparing sulfites in general (particular individual sulfites, see the relevant groups of subclasses C01B-C01G, according to the cation) HB CC 4G043
  • C01B17/64
    		•  .Thiosulfates; Dithionites; Polythionates HB CC 4G043
  • C01B17/64@B
    		•  Preparation using gaseous oxidizing agents (excluding SOx) HB CC 4G043
  • C01B17/64@Z
    		•  Others HB CC 4G043
  • C01B17/66
    		•  ..Dithionites HB CC 4G043
  • C01B17/66@B
    		•  Preparation by sodium formate process (HCOONa + NaHSO3 + SO2 → Na2S2O4 + CO2 + H2O) HB CC 4G043
  • C01B17/66@E
    		•  .Treatment of dithionite crystal cleaning solution or mother liquid after separating crystals HB CC 4G043
  • C01B17/66@M
    		•  Treatments HB CC 4G043
  • C01B17/66@Z
    		•  Others HB CC 4G043
  • C01B17/69
    		•  .Sulfur trioxide; Sulfuric acid [3] HB CC 4G043
  • C01B17/69@M
    		•  Treatment by additives (thickening; solidification) HB CC 4G043
  • C01B17/69@Z
    		•  Others (Preparation of sulfuric acid by absorbing SO3 into water soluble media R 17/74 G) HB CC 4G043
  • C01B17/70
    		•  ..Stabilisation of gamma-form sulfur trioxide HB CC 4G043
  • C01B17/74
    		•  ..Preparation [3] HB CC 4G043
  • C01B17/74@A
    		•  Preparation of sulfur trioxide (by catalysts 17/76 to 17/80) HB CC 4G043
  • C01B17/74@D
    		•  Preparation of sulfuric acid in liquid phase {(dismutation of SO32- in liquid phase ) non-uniforming of SO32- (S + SO42-)} HB CC 4G043
  • C01B17/74@E
    		•  .By oxidation (Liquid phase contact process R17/775 A) HB CC 4G043
  • C01B17/74@F
    		•  ..By using halogens or halogen compounds HB CC 4G043
  • C01B17/74@G
    		•  .By absorbing sulfur trioxide into water soluble media (Interim absorption of multi-SO3 conversion R 17/765 A) HB CC 4G043
  • C01B17/74@M
    		•  ..Other gas treatment processes e.g., diversion of water soluble media for drying processes of sulfur dioxide and air HB CC 4G043
  • C01B17/74@Z
    		•  Others HB CC 4G043
  • C01B17/76
    		•  ...by contact processes HB CC 4G043
  • C01B17/76@A
    		•  Other sulfur or sulfuric compound treatment processes e.g. preparation, purification or drying of sulfur dioxide, or combination of sulfur trioxide (combination with interim absorption of multi-stage SO3 conversion R 17/765A) HB CC 4G043
  • C01B17/76@Z
    		•  Others HB CC 4G043
  • C01B17/765
    		•  ....Multi-stage SO3-conversion [3] HB CC 4G043
  • C01B17/765@A
    		•  Combinations with interim separation processes of sulfur trioxide HB CC 4G043
  • C01B17/765@Z
    		•  Others HB CC 4G043
  • C01B17/77
    		•  ....Fluidised-bed processes [3] HB CC 4G043
  • C01B17/775
    		•  ....Liquid phase contacting processes or wet catalysis processes [3] HB CC 4G043
  • C01B17/775@A
    		•  Liquid phase contact processes (characterized by catalysts used R 17/78, 79) HB CC 4G043
  • C01B17/775@E
    		•  .By carbon catalysts HB CC 4G043
  • C01B17/775@Z
    		•  Others HB CC 4G043
  • C01B17/78
    		•  ....characterised by the catalyst used HB CC 4G043
  • C01B17/79
    		•  .....containing vanadium [3] HB CC 4G043
  • C01B17/80
    		•  ....Apparatus HB CC 4G043
  • C01B17/80@A
    		•  Catalyst converters HB CC 4G043
  • C01B17/80@Z
    		•  Others HB CC 4G043
  • C01B17/82
    		•  ...of sulfuric acid using a nitrogen oxide process HB CC 4G043
  • C01B17/84
    		•  ....Chamber process HB CC 4G043
  • C01B17/86
    		•  ....Tower process HB CC 4G043
  • C01B17/88
    		•  ..Concentration of sulfuric acid HB CC 4G043
  • C01B17/88@A
    		•  By contacting sulfuric acid on the heated surface (multi-stage evaporating operations R S) HB CC 4G043
  • C01B17/88@B
    		•  .By contacting thin sulfuric acid film HB CC 4G043
  • C01B17/88@E
    		•  .By circulating (By contacting thin film R B) HB CC 4G043
  • C01B17/88@H
    		•  By directly contacting heated gas and sulfuric acid (multi-stage evaporating operations R S) HB CC 4G043
  • C01B17/88@S
    		•  By combinations of two or more evaporating operations e.g., multi-function evaporating can HB CC 4G043
  • C01B17/88@Z
    		•  Others HB CC 4G043
  • C01B17/90
    		•  ..Separation; Purification HB CC 4G043
  • C01B17/90@A
    		•  Adjustments of temperature, pressure or density; agitation; distilling; by deaeration (by injection of gases excluding H2O, SO3 or inert gases R K to R) HB CC 4G043
  • C01B17/90@C
    		•  .By depositing impurities from liquid phase (deposition in the liquid phase) HB CC 4G043
  • C01B17/90@E
    		•  By electrolysis; Dialysis; Permeation; Reverse osmosis HB CC 4G043
  • C01B17/90@K
    		•  By adding substances excluding H2O, SO3, H2SO4 or inert gases HB CC 4G043
  • C01B17/90@L
    		•  .By depositing agents (creation of deposit by oxidation R R; creation of deposit by adsorbents R P) HB CC 4G043
  • C01B17/90@P
    		•  .By adsorbents HB CC 4G043
  • C01B17/90@Q
    		•  ..By ion exchange resins or chelate resins HB CC 4G043
  • C01B17/90@R
    		•  .By oxidizers (use of air as inert gas R A) HB CC 4G043
  • C01B17/90@S
    		•  .By liquid extractors HB CC 4G043
  • C01B17/90@Z
    		•  Others HB CC 4G043
  • C01B17/92
    		•  ...Recovery from acid tar or the like HB CC 4G043
  • C01B17/94
    		•  ...Recovery from nitration acids HB CC 4G043
  • C01B17/96
    		•  .Methods for the preparation of sulfates in general (particular individual sulfates, see the relevant groups of subclasses C01B-C01G, according to the cation) HB CC 4G043
  • C01B17/98
    		•  .Other compounds containing sulfur and oxygen (persulfuric acids C01B 15/06; persulfates C01B 15/08) HB CC 4G043
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