IPC 7 English version C01F !A-C01F 17/00

C01F-C01F01700

SECTION C – CHEMISTRY; METALLURGY

C 01

INORGANIC 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 F

COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS (metal hydrides C01B 6/00; salts of oxyacids of halogens C01B 11/00; peroxides, salts of peroxyacids C01B 15/00; sulfides or polysulfides of magnesium, calcium, strontium, or barium C01B 17/42; thiosulfates, dithionites, polythionates C01B 17/64; compounds containing selenium or tellurium C01B 19/00; binary compounds of nitrogen with metals C01B 21/06; azides C01B 21/08; metal amides C01B 21/092; nitrites C01B 21/50; phosphides C01B 25/08; salts of oxyacids of phosphorus C01B 25/16; carbides C01B 31/30; compounds containing silicon C01B 33/00; compounds containing boron C01B 35/00; compounds having molecular sieve properties but not having base-exchange properties C01B 37/00; compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites, C01B 39/00; cyanides C01C 3/08; salts of cyanic acid C01C 3/14; salts of cyanamide C01C 3/16; thiocyanates C01C 3/20)

Note

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

Methods of preparing compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or the rare earths, in general

Compounds of beryllium

Oxides; Hydroxides [3]

Compounds of magnesium

Magnesia

by oxidation of metallic magnesium

by thermal decomposition of magnesium compounds (calcining magnesite or dolomite C04B 2/10)

by calcining magnesium hydroxide

by thermal decomposition of magnesium chloride with water vapour

by thermal decomposition of magnesium sulfate, with or without reduction

Magnesium hydroxide

by treating magnesia, e.g. calcined dolomite, with water or solutions of salts not containing magnesium

by precipitation from solutions of magnesium salts with ammonia

from magnesium compounds with alkali hydroxides or alkaline earth oxides or hydroxides

Magnesium carbonates

Magnesium halides

Fluorides

Chlorides

Preparation of anhydrous magnesium chloride by chlorinating magnesium compounds

Dehydrating magnesium chloride containing water of crystallisation

Bromides

Magnesium nitrates

Magnesium sulfates (double sulfates of magnesium with sodium or potassium C01D 5/12, with other alkali metals C01D 15/06, C01D 17/00) [3]

Magnesium sulfites

Compounds of aluminium

Aluminium oxide; Aluminium hydroxide; Aluminates

Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom

by treating aluminous minerals with alkali hydroxide

by treating aluminous minerals with sodium carbonate

by treating aluminous minerals with alkali sulfates and reducing agents

Alkali metal aluminates from alkaline earth metal aluminates

Aluminium oxide or hydroxide from alkali metal aluminates

Preparation of alkaline earth metal aluminates; Aluminium oxide or hydroxide therefrom

Aluminium oxide or hydroxide from alkaline earth metal aluminates

Preparation of aluminium oxide or hydroxide from aluminous ores with acids or salts

with halides

with nitric acid or nitrogen oxides

with sulfuric acids or sulfates

with sulfurous acid

Preparation of aluminium oxide or hydroxide by thermal decomposition of aluminium compounds

of sulfates

Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts

from organic aluminium salts

Preparation of aluminium oxide by thermal reduction of aluminous minerals

in the presence of aluminium sulfide

Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation

Dehydration of aluminium hydroxide

Purification of aluminium oxide, aluminium hydroxide or aluminates [5]

of aluminates [5]

Aluminium halides

Fluorides

Double compounds containing both fluorine and other acid groups

Double compounds containing both aluminium and alkali metals or alkaline earth metals

Chlorides (containing fluorine C01F 7/52) [3]

Preparation of anhydrous aluminium chloride

from oxygen-containing aluminium compounds

Purification

Bromides (containing fluorine C01F 7/52) [3]

Aluminium nitrates (containing fluorine C01F 7/52) [3]

Aluminium compounds containing sulfur (containing fluorine C01F 7/52) [3]

Sulfides

Sulfites

Sulfates

Double salts, e.g. alums

11/

Compounds of calcium, strontium, or barium (C01F 7/00 takes precedence) [3]

11/

Oxides or hydroxides (production of lime C04B 2/00)

11/

by thermal decomposition

11/

of carbonates

11/

by reduction of sulfates

11/

from sulfides

11/

from silicates

11/

Purification

11/

Carbonates

11/

Halides

11/

Fluorides

11/

Chlorides

11/

from sulfides

11/

by chlorination of alkaline earth metal compounds

11/

Concentrating; Dehydrating; Preventing the absorption of moisture or caking

11/

Purification

11/

Bromides

11/

Nitrates

11/

Preparation with nitric acid or nitrogen oxides

11/

Preparation by double decomposition with nitrates

11/

Double salts (with magnesium C01F 5/38)

11/

Concentrating; Crystallising; Dehydrating; Preventing the absorption of moisture or caking

11/

Sulfates (dehydration of gypsum C04B 11/02)

11/

Sulfites

13/

Compounds of radium

15/

Compounds of thorium

17/

Compounds of the rare-earth metals, i.e. scandium, yttrium, lanthanum, or the group of the lanthanides