IPC 6 English version C01B !A-C01B 13/36

C-C01B01336

SECTION C– CHEMISTRY; METALLURGY

C 01

INORGANIC CHEMISTRY (processing powders of inorganic compounds preparatory to the manufacturing of ceramic products C 04 B 35/00; fermentation or enzyme-using processes for the preparation of elements or inorganic compounds except carbon dioxide C 12 P 3/00; obtaining metal compounds from mixtures, e.g. ores, which are intermediate compounds in a metallurgical process for obtaining a free metal C 21 B, C 22 B; production of non-metallic elements or inorganic compounds by electrolysis or electrophoresis C 25 B)

C 01 B

NON-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]

Hydrogen; Hydrides; Water; Synthesis gas from hydrocarbons

Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it (separation of gases by physical means B 01 D); Purification of hydrogen (production of water-gas or synthesis gas from solid carbonaceous material C 10 J; purifying or modifying the chemical compositions of combustible gases containing carbon monoxide C 10 K) [3]

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

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

by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents (by electrolysis of water C 25 B 1/04) [3]

with metals [3]

by reaction of water vapour with metals [3]

by reaction of water vapour with carbon monoxide [3]

Handling of heat and steam [3]

using catalysts [3]

using moving solid particles [3]

by reaction of metal hydroxides with carbon monoxide [3]

by decomposition of gaseous or liquid organic compounds (coking liquid carbonaceous materials C 10 B 55/00) [3]

of hydrocarbons [3]

using catalysts [3]

using moving solid particles [3]

using the fluidised bed technique [3]

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

by reaction of hydrocarbons with gasifying agents [3]

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

using catalysts [3]

characterised by the catalyst [3]

using moving solid particles [3]

using the fluidised bed technique [3]

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

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

Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification (C 01 B 3/14 takes precedence) [3]

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

including a catalytic reaction [3]

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

including a catalytic reaction [3]

Hydrogen isotopes; Inorganic compounds thereof prepared by isotope exchange, e.g. NH₃+D₂ NH₂D+HD (separation of isotopes B 01 D 59/00; other chemical reactions to form compounds of hydrogen isotopes, see the relevant groups for hydrogen compounds in class C 01) [2]

Water

Heavy water; Preparation by chemical reaction of hydrogen isotopes or their compounds, e.g. 4ND₃+7O₂

4NO₂+6D₂O, 2D₂+O₂

2D₂O

Hydrides of metals; Monoborane or diborane; Addition complexes thereof (higher hydrides of boron, substituted hydrides of boron C 01 B 35/00) [2]

Hydrides of transition elements; Addition complexes thereof

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

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

Monoborane; Diborane; Addition complexes thereof [2]

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

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

Metal borohydrides; Addition complexes thereof [2]

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

Preparation from other compounds of boron [2]

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

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

Hydrides containing at least two metals, e.g. Li(AlH₄); Addition complexes thereof (C 01 B 6/13 to C 01 B 6/23 take precedence) [2]

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

Purification; Stabilisation

Halogens; Compounds thereof

Halogens; Halogen acids (oxyacids C 01 B 11/00)

Chlorine; Hydrogen chloride [2]

Preparation from chlorides [2,3]

Preparation of chlorine from hydrogen chloride [3]

Preparation from ammonium chloride [2,3]

Purification [2,3]

075

of liquid chlorine [2,3]

Bromine; Hydrogen bromide [2]

Iodine; Hydrogen iodide [2]

Iodine [2]

Preparation from seaweed [2]

Fluorine; Hydrogen fluoride [2]

Fluorine [2]

Inter-halogen compounds

General methods of preparing halides (particular individual halides, see the relevant groups in subclasses C 01 B to C 01 G according to the element combined with the halogen; electrolytic production of inorganic compounds C 25 B)

Chlorides

Bromides

Iodides

Fluorides

11/

Oxides or oxyacids of halogens; Salts thereof

11/

Oxides of chlorine

11/

Hypochlorous acid

11/

Hypochlorites, e.g. chlorinated lime

11/

Chlorous acid

11/

Chlorites

11/

Chloric acid

11/

Chlorates

11/

Perchloric acid

11/

Perchlorates

11/

Oxygen compounds of bromine

11/

Oxygen compounds of iodine

11/

Oxygen compounds of fluorine

Oxygen; Oxides or hydroxides in general; Per-compounds

13/

Oxygen; Ozone; Oxides or hydroxides in general

13/

Preparation of oxygen (by liquefying F 25 J)

13/

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

13/

Preparation of ozone

13/

by electric discharge [2]

13/

Methods for preparing oxides or hydroxides in general (particular individual oxides or hydroxides, see the relevant groups of subclasses C 01 B to C 01 G or C 25 B, according to the element combined with the oxygen or hydroxy group)

13/

Purification [3]

13/

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

13/

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

13/

of halides or oxyhalides [3]

13/

in the presence of hot combustion gases [3]

13/

in the presence of a fluidised bed [3]

13/

using a plasma or an electric discharge [3]

13/

Removal and cooling of the oxide containing suspension [3]

13/

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

13/

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

13/

by precipitation reactions in solutions [3]

C01B 15/00 - C01B 21/50