FI (list display)

  • C01B21/00
  • Nitrogen; Compounds thereof HB CC 4G043
  • C01B21/02
  • .Preparation of nitrogen (by decomposition of ammonia C01B 3/04) HB CC 4G043
  • C01B21/02@A
  • From nitrogen and hydrogen compounds (preparation of mixed gas containing hydrogen R 3/04; by reducing nitrogen oxides contained in waste gases with ammonia R B 01 D 53/34, 36) HB CC 4G043
  • C01B21/02@Z
  • Others (from nitrogen compounds contained in waste gas R B 01 D 53/34, 36) HB CC 4G043
  • C01B21/04
  • .Purification or separation of nitrogen (by liquefying F25J) HB CC 4G043
  • C01B21/04@B
  • By adsorption HB CC 4G043
  • C01B21/04@D
  • .Removal by adsorbing oxygen from mixture mainly consisting of nitrogen and oxygen e.g., air HB CC 4G043
  • C01B21/04@G
  • .Reclamation by adsorbing nitrogen from mixture mainly consisting of nitrogen and oxygen e.g., air HB CC 4G043
  • C01B21/04@K
  • ..Nitrogen adsorbents HB CC 4G043
  • C01B21/04@M
  • By diffusion HB CC 4G043
  • C01B21/04@N
  • .Removal by diffusing oxygen from mixture mainly consisting of nitrogen and oxygen e.g. air HB CC 4G043
  • C01B21/04@Q
  • By magnetism HB CC 4G043
  • C01B21/04@R
  • Removal by reacting impurities (adsorption R B to K) HB CC 4G043
  • C01B21/04@S
  • .Reaction with substances containing hydrogen or carbon (liquid phase R W) HB CC 4G043
  • C01B21/04@T
  • ..Reaction with hydrogen HB CC 4G043
  • C01B21/04@V
  • .Reaction with metals (in molten metals) HB CC 4G043
  • C01B21/04@W
  • .Reaction in liquid phase (in molten metals R V) HB CC 4G043
  • C01B21/04@Z
  • Others (preparation method of inert gases from air R B 01 J 19/14, preparation devices R B 01 J 7/00) HB CC 4G043
  • C01B21/06
  • .Binary compounds of nitrogen with metals, with silicon, or with boron HB CC 4G043
  • C01B21/06@A
  • Binary compounds of nitrogen and a particular metal (preparation methods extending to B, D, F, 21/064, 21/068, 21/072 and 21/076 R M to Z) HB CC 4G043
  • C01B21/06@B
  • .Binary compounds of nitrogen and alkali metals HB CC 4G043
  • C01B21/06@D
  • .Binary compounds of nitrogen and ferrous metals HB CC 4G043
  • C01B21/06@F
  • .Binary compounds of nitrogen and actinides HB CC 4G043
  • C01B21/06@M
  • General preparation methods for binary compounds consisting of nitrogen and a metal, silicon or boron HB CC 4G043
  • C01B21/06@N
  • .From elemental metals, silicon or boron HB CC 4G043
  • C01B21/06@R
  • .From compounds consisting of combinations of a metal and silicon, boron and oxygen HB CC 4G043
  • C01B21/06@Z
  • Others HB CC 4G043
  • C01B21/064
  • ..with boron [3] HB CC 4G043
  • C01B21/064@B
  • Preparation of elementary selenium HB CC 4G043
  • C01B21/064@D
  • .From elemental boron HB CC 4G043
  • C01B21/064@G
  • .From compounds containing combination of boron and oxygen HB CC 4G043
  • C01B21/064@H
  • ..Addition of organic compounds containing nitrogen for reaction system HB CC 4G043
  • C01B21/064@J
  • .From hydrogen, halogen or alkali compounds of boron or compounds containing combination of boron and nitrogen e.g. borasol, boradine HB CC 4G043
  • C01B21/064@M
  • Treatments (phase conversion using very high-pressure R B 01 J 3/06) HB CC 4G043
  • C01B21/064@Z
  • Others HB CC 4G043
  • C01B21/068
  • ..with silicon [3] HB CC 4G043
  • C01B21/068@C
  • Preparation HB CC 4G043
  • C01B21/068@D
  • .From elemental boron HB CC 4G043
  • C01B21/068@E
  • ..Addition of metallic constituents into reaction system (reaction during motion R F) HB CC 4G043
  • C01B21/068@F
  • ..Reaction during motion e.g. during transferring HB CC 4G043
  • C01B21/068@G
  • .From compounds consisting of combinations between silicon and oxygen HB CC 4G043
  • C01B21/068@W
  • ..Mixing and nitriding of compounds consisting of boron and oxygen e.g. alkoxide and carbon substances (reaction during motion R K) HB CC 4G043
  • C01B21/068@H
  • ...Nitriding by mixing silica powder and carbon powder HB CC 4G043
  • C01B21/068@J
  • ....Addition of metallic constituents to reaction system HB CC 4G043
  • C01B21/068@K
  • ..Reaction during motion e.g. during transferring HB CC 4G043
  • C01B21/068@M
  • .From hydrogen, halogen or alkali compounds of silicon, or nitrides products, silicon imide or silicon diimide (via elemental boron R D; via compound containing combination of silicon and oxygen R G; via polysiloxane R Q) HB CC 4G043
  • C01B21/068@N
  • ..By using direct application of electric or wave energy or by using irradiation by particle beams (preparation of films R Y) HB CC 4G043
  • C01B21/068@Y
  • ..Preparation of films HB CC 4G043
  • C01B21/068@P
  • ..From nitride products, silicon imides or silicondiimides HB CC 4G043
  • C01B21/068@Q
  • .From polysiloxane HB CC 4G043
  • C01B21/068@R
  • Processing (P takes precedence) HB CC 4G043
  • C01B21/068@S
  • .Etching HB CC 4G043
  • C01B21/068@T
  • .Purification; Separation HB CC 4G043
  • C01B21/068@U
  • .Surface improvement by additives HB CC 4G043
  • C01B21/068@Z
  • Others HB CC 4G043
  • C01B21/072
  • ..with aluminium [3] HB CC 4G043
  • C01B21/072@A
  • Preparation HB CC 4G043
  • C01B21/072@B
  • .From metallic aluminium HB CC 4G043
  • C01B21/072@F
  • ..Reaction during motion (including gaseous state) HB CC 4G043
  • C01B21/072@G
  • .From compounds containing combinations of aluminium and oxygen (alkoxide) or aluminium compounds that form such compounds during reaction e.g. aluminium nitrate HB CC 4G043
  • C01B21/072@J
  • ..Addition of metallic (excluding aluminium) or silicon constituents for reaction HB CC 4G043
  • C01B21/072@M
  • .From hydrogen, halogen or alkali compounds of aluminium or nitrogen products of such compounds HB CC 4G043
  • C01B21/072@R
  • Processing HB CC 4G043
  • C01B21/072@Z
  • Others HB CC 4G043
  • C01B21/076
  • ..with titanium or zirconium [3] HB CC 4G043
  • C01B21/076@B
  • From metallic titanium or zirconium HB CC 4G043
  • C01B21/076@G
  • Compounds containing combinations of titanium or zirconium and oxygen (alkoxide) HB CC 4G043
  • C01B21/076@Z
  • Others HB CC 4G043
  • C01B21/08
  • .Hydrazoic acid; Azides; Halogen azides HB CC 4G043
  • C01B21/082
  • .Compounds containing nitrogen and non-metals (C01B 21/06, C01B 21/08 take precedence) [3] HB CC 4G043
  • C01B21/082@C
  • Containing one or more silicon atoms (takes precedence over 21/083 to 096) (inorganic silazane, silicon nitride iron) HB CC 4G043
  • C01B21/082@D
  • .Containing also one or more oxygen atoms (silicon nitride) HB CC 4G043
  • C01B21/082@E
  • ..Containing also one or more aluminium atoms HB CC 4G043
  • C01B21/082@F
  • ...Preparation from elemental silicon HB CC 4G043
  • C01B21/082@G
  • ...Preparation from compounds containing combinations between silicon and oxygen HB CC 4G043
  • C01B21/082@J
  • ...Preparation from compounds containing combinations between silicon and nitrogen HB CC 4G043
  • C01B21/082@K
  • Containing one or more carbon atoms (takes precedence over 21/083 to 096) HB CC 4G043
  • C01B21/082@L
  • .Containing also one or more silicon atoms HB CC 4G043
  • C01B21/082@Z
  • Others (classify metal oxide-nitride based on the metals) HB CC 4G043
  • C01B21/083
  • ..containing one or more halogen atoms [3] HB CC 4G043
  • C01B21/084
  • ...containing also one or more oxygen atoms, e.g. nitrosyl halides [3] HB CC 4G043
  • C01B21/086
  • ..containing one or more sulfur atoms [3] HB CC 4G043
  • C01B21/087
  • ..containing one or more hydrogen atoms [3] HB CC 4G043
  • C01B21/088
  • ...containing also one or more halogen atoms [3] HB CC 4G043
  • C01B21/09
  • ....Halogeno-amines, e.g. chloramine [3] HB CC 4G043
  • C01B21/092
  • ...containing also one or more metal atoms [3] HB CC 4G043
  • C01B21/093
  • ...containing also one or more sulfur atoms [3] HB CC 4G043
  • C01B21/093@A
  • Preparation from nitrogen oxides HB CC 4G043
  • C01B21/093@Z
  • Others HB CC 4G043
  • C01B21/094
  • ....Nitrosyl containing acids [3] HB CC 4G043
  • C01B21/096
  • ....Amidosulfonic acid; Salts thereof [3] HB CC 4G043
  • C01B21/096@A
  • Preparation from nitrogen oxides HB CC 4G043
  • C01B21/096@Z
  • Others HB CC 4G043
  • C01B21/097
  • ..containing phosphorus atoms [3] HB CC 4G043
  • C01B21/098
  • ...Phosphonitrilic dihalides; Polymers thereof [3] HB CC 4G043
  • C01B21/098@M
  • Polymers of nitriding dihalogenated phosphor(us) (oligomers R Z) HB CC 4G043
  • C01B21/098@Z
  • Others HB CC 4G043
  • C01B21/12
  • ..Carbamic acid; Salts thereof HB CC 4G043
  • C01B21/14
  • ..Hydroxylamine; Salts thereof HB CC 4G043
  • C01B21/14@B
  • Preparation by contact reduction of inorganic compounds containing nitrogen and oxygen HB CC 4G043
  • C01B21/14@E
  • Preparation from organic compounds containing nitrogen HB CC 4G043
  • C01B21/14@Z
  • Others HB CC 4G043
  • C01B21/16
  • ..Hydrazine; Salts thereof HB CC 4G043
  • C01B21/16@B
  • Via hydrazine or carbonyl compounds e.g. hydrazone (RR' C=NNH2), isohydrazone or azine (RR' C=NN= =CR R') HB CC 4G043
  • C01B21/16@G
  • By direct application of electric or wave energy or irradiation by particle beams HB CC 4G043
  • C01B21/16@Z
  • Others HB CC 4G043
  • C01B21/20
  • .Nitrogen oxides; Oxyacids of nitrogen; Salts thereof HB CC 4G043
  • C01B21/22
  • ..Nitrous oxide (N2O) HB CC 4G043
  • C01B21/24
  • ..Nitric oxide (NO) HB CC 4G043
  • C01B21/24@A
  • Preparation from other nitrogen oxides HB CC 4G043
  • C01B21/24@E
  • Preparation from oxygen acid of nitrogen or salts thereof HB CC 4G043
  • C01B21/24@Z
  • Others HB CC 4G043
  • C01B21/26
  • ...Preparation by catalytic oxidation of ammonia HB CC 4G043
  • C01B21/26@B
  • Characterized by catalysts used HB CC 4G043
  • C01B21/26@E
  • .Catalysts containing heavy metals HB CC 4G043
  • C01B21/26@H
  • Prevention of degradation or loss of catalysts; reclamation of lost catalysts HB CC 4G043
  • C01B21/26@Z
  • Others HB CC 4G043
  • C01B21/28
  • ....Apparatus HB CC 4G043
  • C01B21/30
  • ...Preparation by oxidation of nitrogen HB CC 4G043
  • C01B21/32
  • ....Apparatus HB CC 4G043
  • C01B21/34
  • ..Nitrogen trioxide (N2O3) HB CC 4G043
  • C01B21/36
  • ..Nitrogen dioxide (NO2, N2O4) (C01B 21/26, C01B 21/30 take precedence) HB CC 4G043
  • C01B21/36@A
  • Preparation from other nitrogen oxides HB CC 4G043
  • C01B21/36@C
  • .By oxidation with oxygen (by ozone R E; by direct application of electric or wave energy or radiation of particle beam R G) HB CC 4G043
  • C01B21/36@D
  • ..By using catalysts HB CC 4G043
  • C01B21/36@E
  • .By ozone oxidation HB CC 4G043
  • C01B21/36@F
  • .By oxidation with halogens or halogenated compounds HB CC 4G043
  • C01B21/36@G
  • .By using direct application of electric or wave energy or irradiation by particle beams HB CC 4G043
  • C01B21/36@Z
  • Others HB CC 4G043
  • C01B21/38
  • ..Nitric acid HB CC 4G043
  • C01B21/40
  • ...Preparation by absorption of oxides of nitrogen HB CC 4G043
  • C01B21/40@B
  • Adding substances excluding H2O, NOx or HNO3 to absorbing system HB CC 4G043
  • C01B21/40@E
  • Combining with contact oxidation process of ammonia HB CC 4G043
  • C01B21/40@Z
  • Others HB CC 4G043
  • C01B21/42
  • ...Preparation from nitrates HB CC 4G043
  • C01B21/44
  • ...Concentration HB CC 4G043
  • C01B21/46
  • ...Purification; Separation HB CC 4G043
  • C01B21/46@A
  • Adjustments of temperature, pressure or density; agitation; distilling; by deaeration (by injecting substances excluding H2O, NOx, HNO3 or inert gases R S, Z) HB CC 4G043
  • C01B21/46@E
  • By electrolysis; dialysis; electro-dialysis; reverse osmosis HB CC 4G043
  • C01B21/46@S
  • By liquid extractors HB CC 4G043
  • C01B21/46@Z
  • Others HB CC 4G043
  • C01B21/48
  • ..Methods for the preparation of nitrates in general (particular individual nitrates, see the relevant groups of subclasses C01B-C01G, according to the cation) HB CC 4G043
  • C01B21/50
  • ..Nitrous acid; Salts thereof HB CC 4G043
  • C01B21/50@A
  • Ammonium nitrate HB CC 4G043
  • C01B21/50@B
  • .Preparation by absorbing nitrogen oxides HB CC 4G043
  • C01B21/50@E
  • Nitrous acids of alkali metals HB CC 4G043
  • C01B21/50@F
  • .Preparation by absorption of nitrogen oxides HB CC 4G043
  • C01B21/50@J
  • Nitrous acids of magnesium, calcium, strontium or barium HB CC 4G043
  • C01B21/50@K
  • .Preparation by absorption of nitrogen oxides HB CC 4G043
  • C01B21/50@Z
  • Others HB CC 4G043
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