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IPC 7
 
C-C01B01336
  C01B 15/00 - C01B 21/50  

SECTION C – CHEMISTRY; METALLURGY


C 01INORGANIC CHEMISTRY (processing powders of inorganic compounds preparatory to the manufacturing of ceramic products C04B 35/00; fermentation or enzyme-using processes for the preparation of elements or inorganic compounds except carbon dioxide C12P 3/00; obtaining metal compounds from mixtures, e.g. ores, which are intermediate compounds in a metallurgical process for obtaining a free metal C21B, C22B; production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis C25B)


C 01 BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF


Notes

(1)In this subclass, tradenames that are often found in scientific and patent literature have been used in order to define precisely the scope of the groups.  [6]

(2)Attention is drawn to the definitions of groups of chemical elements following the title of section C.  [3]

(3)Therapeutic activity of compounds is further classified in subclass A61P. [7]


Subclass Index

HYDROGEN; HYDROGEN ISOTOPES; WATER; HYDRIDES 

C01B 3/00; C01B 4/00; C01B 5/00; C01B 6/00 

SYNTHESIS GAS 

C01B 3/00 

HALOGENS OR THEIR COMPOUNDS 

C01B 7/00, C01B 9/00, C01B 11/00 

OXYGEN, OXIDES IN GENERAL; PER-COMPOUNDS 

C01B 13/00; C01B 15/00 

SULFUR, COMPOUNDS THEREOF 

C01B 17/00 

NITROGEN, COMPOUNDS THEREOF 

C01B 21/00 

PHOSPHORUS, COMPOUNDS THEREOF 

C01B 25/00 

CARBON, COMPOUNDS THEREOF 

C01B 31/00 

SILICON, COMPOUNDS THEREOF 

C01B 33/00 

SELENIUM OR TELLURIUM; BORON 

C01B 19/00; C01B 35/00 

NOBLE GASES 

C01B 23/00 

COMPOUNDS HAVING MOLECULAR SIEVE PROPERTIES BUT NOT HAVING BASE-EXCHANGE PROPERTIES 

C01B 37/00 

COMPOUNDS HAVING MOLECULAR SIEVE AND BASE-EXCHANGE PROPERTIES 

C01B 39/00 



Hydrogen; Hydrides; Water; Synthesis gas from hydrocarbons


3/

00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it (separation of gases by physical means B01D); Purification of hydrogen (production of water-gas or synthesis gas from solid carbonaceous material C10J; purifying or modifying the chemical compositions of combustible gases containing carbon monoxide C10K) [3]

3/

02.Production of hydrogen or of gaseous mixtures containing hydrogen  [3]

3/

04..by decomposition of inorganic compounds, e.g. ammonia  [3]

3/

06..by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents (by electrolysis of water C25B 1/04)  [3]

3/

08...with metals  [3]

3/

10....by reaction of water vapour with metals  [3]

3/

12...by reaction of water vapour with carbon monoxide  [3]

3/

14....Handling of heat and steam  [3]

3/

16....using catalysts  [3]

3/

18....using moving solid particles  [3]

3/

20...by reaction of metal hydroxides with carbon monoxide  [3]

3/

22..by decomposition of gaseous or liquid organic compounds (coking liquid carbonaceous materials C10B 55/00)  [3]

3/

24...of hydrocarbons  [3]

3/

26....using catalysts  [3]

3/

28....using moving solid particles  [3]

3/

30.....using the fluidised bed technique  [3]

3/

32..by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air  [3]

3/

34...by reaction of hydrocarbons with gasifying agents  [3]

3/

36....using oxygen or mixtures containing oxygen as gasifying agents  [3]

3/

38....using catalysts  [3]

3/

40.....characterised by the catalyst  [3]

3/

42.....using moving solid particles  [3]

3/

44......using the fluidised bed technique  [3]

3/

46....using discontinuously preheated non-moving solid materials, e.g. blast and run  [3]

3/

48....followed by reaction of water vapour with carbon monoxide  [3]

3/

50.Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification (C01B 3/14 takes precedence)  [3]

3/

52..by contacting with liquids; Regeneration of used liquids  [3]

3/

54...including a catalytic reaction  [3]

3/

56..by contacting with solids; Regeneration of used solids  [3]

3/

58...including a catalytic reaction  [3]


4/

00Hydrogen isotopes; Inorganic compounds thereof prepared by isotope exchange, e.g. NH3+D2 NH2D+HD (separation of isotopes B01D 59/00; other chemical reactions to form compounds of hydrogen isotopes, see the relevant groups for hydrogen compounds in class C01) [2]


5/

00Water

5/

02.Heavy water; Preparation by chemical reaction of hydrogen isotopes or their compounds, e.g. 4ND3+7O2 4NO2+6D2O, 2D2+O2 2D2O


6/

00Hydrides of metals; Monoborane or diborane; Addition complexes thereof (higher hydrides of boron, substituted hydrides of boron C01B 35/00) [2]

6/

02.Hydrides of transition elements; Addition complexes thereof

6/

04.Hydrides of alkali metals, alkaline earth metals, beryllium or magnesium; Addition complexes thereof

6/

06.Hydrides of aluminium, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, bismuth or polonium; Monoborane; Diborane; Addition complexes thereof

6/

10..Monoborane; Diborane; Addition complexes thereof  [2]

6/

11...Preparation from boron or inorganic compounds containing boron and oxygen  [2]

6/

13...Addition complexes of monoborane or diborane, e.g. with phosphine, arsine or hydrazine  [2]

6/

15....Metal borohydrides; Addition complexes thereof  [2]

6/

17.....Preparation from boron or inorganic compounds containing boron and oxygen  [2]

6/

19.....Preparation from other compounds of boron  [2]

6/

21......Preparation of borohydrides of alkali metals, alkaline earth metals, magnesium or beryllium; Addition complexes thereof, e.g. LiBH4.2N2H4, NaB2H7  [2]

6/

23......Preparation of borohydrides of other metals, e.g. aluminium borohydride; Addition complexes thereof, e.g. Li [Al(BH4)3H]  [2]

6/

24.Hydrides containing at least two metals, e.g. Li(AlH4); Addition complexes thereof (C01B 6/13 to C01B 6/23 take precedence)  [2]

6/

26..Preparation from the metal with the highest valency or from its oxides or salts of its oxyacids

6/

34.Purification; Stabilisation


Halogens; Compounds thereof


7/

00Halogens; Halogen acids (oxyacids C01B 11/00)

7/

01.Chlorine; Hydrogen chloride  [2]

7/

03..Preparation from chlorides  [2,3]

7/

04...Preparation of chlorine from hydrogen chloride  [3]

7/

05...Preparation from ammonium chloride  [2,3]

7/

07..Purification  [2,3]

7/

075...of liquid chlorine  [2,3]

7/

09.Bromine; Hydrogen bromide  [2]

7/

13.Iodine; Hydrogen iodide  [2]

7/

14..Iodine  [2]

7/

16...Preparation from seaweed  [2]

7/

19.Fluorine; Hydrogen fluoride  [2]

7/

20..Fluorine  [2]

7/

24.Inter-halogen compounds


9/

00General methods of preparing halides (particular individual halides, see the relevant groups in subclasses C01B to C01G according to the element combined with the halogen; electrolytic production of inorganic compounds C25B)

9/

02.Chlorides

9/

04.Bromides

9/

06.Iodides

9/

08.Fluorides


11/

00Oxides or oxyacids of halogens; Salts thereof

11/

02.Oxides of chlorine

11/

04.Hypochlorous acid

11/

06..Hypochlorites, e.g. chlorinated lime

11/

08.Chlorous acid

11/

10..Chlorites

11/

12.Chloric acid

11/

14..Chlorates

11/

16.Perchloric acid

11/

18..Perchlorates

11/

20.Oxygen compounds of bromine

11/

22.Oxygen compounds of iodine

11/

24.Oxygen compounds of fluorine


Oxygen; Oxides or hydroxides in general; Per-compounds


13/

00Oxygen; Ozone; Oxides or hydroxides in general

13/

02.Preparation of oxygen (by liquefying F25J)

13/

08..from air with the aid of metal oxides, e.g. barium oxide, manganese oxide

13/

10.Preparation of ozone

13/

11..by electric discharge  [2]

13/

14.Methods for preparing oxides or hydroxides in general (particular individual oxides or hydroxides, see the relevant groups of subclasses C01B to C01G or C25B, according to the element combined with the oxygen or hydroxy group)

13/

16..Purification  [3]

13/

18..by thermal decomposition of compounds, e.g. of salts or hydroxides  [3]

13/

20..by oxidation of elements in the gaseous state; by oxidation or hydrolysis of compounds in the gaseous state  [3]

13/

22...of halides or oxyhalides  [3]

13/

24....in the presence of hot combustion gases  [3]

13/

26....in the presence of a fluidised bed  [3]

13/

28....using a plasma or an electric discharge  [3]

13/

30....Removal and cooling of the oxide containing suspension  [3]

13/

32..by oxidation or hydrolysis of elements or compounds in the liquid or solid state  [3]

13/

34..by oxidation or hydrolysis of sprayed or atomised solutions  [3]

13/

36..by precipitation reactions in solutions  [3]

   C01B 15/00 - C01B 21/50  
 

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