WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

C01F　COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS (metal hydrides {monoborane, diborane or addition complexes thereof}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; {compounds other than ammonia or cyanogen containing nitrogen and non-metals and optionally metals C01B 21/082; amides or imides of silicon C01B 21/087}; metal {imides or} amides C01B 21/092, {C01B 21/0923}; nitrites C01B 21/50; {compounds of noble gases C01B 23/0005}; 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; {double sulfates of magnesium with sodium or potassium C01D 5/12; with other alkali metals C01D 15/00, C01D 17/00})

C01F 1/00 Methods of preparing compounds of the metals beryllium, magnesium, aluminium, calcium, strontium, barium, radium, thorium, or the rare earths, in general

C01F 3/00 Compounds of beryllium

C01F 3/005 ・{Fluorides or double fluorides of beryllium with alkali metals or ammonium; Preparation of beryllium compounds therefrom}

C01F 3/02 ・Oxides; Hydroxides

C01F 5/00 Compounds of magnesium

C01F 5/02 ・Magnesia

C01F 5/04 ・・by oxidation of metallic magnesium

C01F 5/06 ・・by thermal decomposition of magnesium compounds (calcining magnesite or dolomite C04B 2/10)

C01F 5/08 ・・・by calcining magnesium hydroxide

C01F 5/10 ・・・by thermal decomposition of magnesium chloride with water vapour

C01F 5/12 ・・・by thermal decomposition of magnesium sulfate, with or without reduction

C01F 5/14 ・Magnesium hydroxide

C01F 5/145 ・・{Purification}

C01F 5/16 ・・by treating magnesia, e.g. calcined dolomite, with water or solutions of salts not containing magnesium

C01F 5/20 ・・by precipitation from solutions of magnesium salts with ammonia

C01F 5/22 ・・from magnesium compounds with alkali hydroxides or alkaline- earth oxides or hydroxides

C01F 5/24 ・Magnesium carbonates

C01F 5/26 ・Magnesium halides

C01F 5/28 ・・Fluorides

C01F 5/30 ・・Chlorides

C01F 5/305 ・・・{Dehydrating ammonium or alkali magnesium chlorides, e.g. carnalite}

C01F 5/32 ・・・Preparation of anhydrous magnesium chloride by chlorinating magnesium compounds

C01F 5/34 ・・・Dehydrating magnesium chloride containing water of crystallisation

C01F 5/36 ・・Bromides

C01F 5/38 ・Magnesium nitrates

C01F 5/40 ・Magnesium sulfates (double sulfates of magnesium with sodium or potassium C01D 5/12, with other alkali metals {C01D 15/00}, C01D 17/00)

C01F 5/42 ・Magnesium sulfites

C01F 7/00 Compounds of aluminium

C01F 7/001 ・{Aluminium carbonate}

C01F 7/002 ・{Compounds containing, besides aluminium, two or more other elements, with the exception of oxygen and hydrogen (compounds containing aluminium, fluorine and alkali or alkaline earth metals C01F 7/54; compounds containing sulfur and other cations besides aluminium C01F 7/68)}

C01F 7/004 ・・{containing carbonate ions, e.g. dawsonite}

C01F 7/005 ・・・{Hydrotalcite}

C01F 7/007 ・・{containing, besides aluminium, only anions, e.g. Al(OH)xCLy(SO4)z (mixed halides C01F 7/48)}

C01F 7/008 ・・{Ammonium aluminium fluorides}

C01F 7/02 ・Aluminium oxide; Aluminium hydroxide; Aluminates

C01F 7/021 ・・{After-treatment of oxides or hydroxides}

C01F 7/022 ・・・{Classification}

C01F 7/023 ・・・{Grinding, deagglomeration, disintegration}

C01F 7/025 ・・・{Granulation, agglomeration}

C01F 7/026 ・・・{Making or stabilising dispersions}

C01F 7/027 ・・・{Treatment involving fusion or vaporisation}

C01F 7/028 ・・{Beta-aluminas}

C01F 7/04 ・・Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom C01F 7/028 takes precedence)}

C01F 7/043 ・・・{Lithium aluminate}

C01F 7/046 ・・・{Stabilisation of aluminates}

C01F 7/06 ・・・by treating aluminous minerals {or waste-like raw materials} with alkali hydroxide, {e.g. leaching of bauxite according to the Bayer process (obtaining aluminium oxide or hydroxide from the resulting aluminate solution C01F 7/14)}

C01F 7/0606 ・・・・{Make-up of the alkali hydroxide solution from recycled spent liquor}

C01F 7/0613 ・・・・{Pretreatment of the minerals, e.g. grinding}

C01F 7/062 ・・・・{Digestion}

C01F 7/0626 ・・・・・{Processes making use of tube digestion only}

C01F 7/0633 ・・・・・{characterised by the use of additives}

C01F 7/064 ・・・・・{Apparatus for digestion, e.g. digestor vessels, heat exchangers}

C01F 7/0646 ・・・・{Separation of the insoluble residue, e.g. red mud}

C01F 7/0653 ・・・・・{characterised by the flocculant added to the slurry (final clarification of the aluminate solution C01F 7/47)}

C01F 7/066 ・・・・{Treatment of the separated residue}

C01F 7/0666 ・・・・{Process control or regulation (control per seG05)}

C01F 7/0673 ・・・・{from phosphate-containing minerals}

C01F 7/068 ・・・・{from carbonate-containing minerals, e.g. dawsonite}

C01F 7/0686 ・・・・{from sulfate-containing minerals, e.g. alunite}

C01F 7/0693 ・・・・{from waste-like raw materials, e.g. fly ash, Bayer calcination dust}

C01F 7/08 ・・・by treating aluminous minerals with sodium carbonate, {e.g. sinter processes (C01F 7/0613 and C01F 7/066 take precedence)}

C01F 7/085 ・・・・{according to the lime-sinter process}

C01F 7/10 ・・・by treating aluminous minerals with alkali sulfates and reducing agents

C01F 7/12 ・・・Alkali metal aluminates from alkaline-earth metal aluminates

C01F 7/14 ・・・Aluminium oxide or hydroxide from alkali metal aluminates

C01F 7/141 ・・・・{from aqueous aluminate solutions by neutralisation with an acidic agent}

C01F 7/142 ・・・・・{with carbon dioxide}

C01F 7/144 ・・・・{from aqueous aluminate solutions by precipitation due to cooling, e.g. as part of the Bayer process}

C01F 7/145 ・・・・・{characterised by a crystal growth modifying agent other than aluminium hydroxide seed}

C01F 7/147 ・・・・・{Apparatus for precipitation}

C01F 7/148 ・・・・・{Separation of the obtained hydroxide, e.g. filtration, dewatering}

C01F 7/16 ・・Preparation of alkaline-earth metal aluminates {or magnesium aluminate}; Aluminium oxide or hydroxide therefrom {(C01F 7/028 takes precedence)}

C01F 7/162 ・・・{Magnesium aluminates}

C01F 7/164 ・・・{Calcium aluminates}

C01F 7/166 ・・・{Strontium aluminates}

C01F 7/168 ・・・{Barium aluminates}

C01F 7/18 ・・・Aluminium oxide or hydroxide from alkaline-earth metal aluminates

C01F 7/20 ・・Preparation of aluminium oxide or hydroxide from aluminous ores with acids or salts

C01F 7/22 ・・・with halides {or halogen acids}

C01F 7/24 ・・・with nitric acid or nitrogen oxides

C01F 7/26 ・・・with sulfuric acids or sulfates

C01F 7/28 ・・・with sulfurous acid

C01F 7/30 ・・Preparation of aluminium oxide or hydroxide by thermal decomposition {or by hydrolysis or oxidation} of aluminium compounds

C01F 7/302 ・・・{Hydrolysis or oxidation of gaseous aluminium compounds in the gas phase}

C01F 7/304 ・・・・{of organic aluminium compounds}

C01F 7/306 ・・・{Thermal decomposition of hydrated chlorides, e.g. aluminium trichloride hexahydrate}

C01F 7/308 ・・・{Thermal decomposition of nitrates}

C01F 7/32 ・・・{Thermal decomposition} of sulfates {including complex sulfates, e.g. alums}

C01F 7/34 ・・Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts

C01F 7/36 ・・・from organic aluminium salts

C01F 7/38 ・・Preparation of aluminium oxide by thermal reduction of aluminous minerals

C01F 7/40 ・・・in the presence of aluminium sulfide

C01F 7/42 ・・Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation

C01F 7/422 ・・・{by oxidation with a gaseous oxidator at a high temperature}

C01F 7/424 ・・・・{using a plasma}

C01F 7/426 ・・・{by applying mechanical energy to solid aluminium at a low temperature}

C01F 7/428 ・・・{by oxidation in an aqueous solution}

C01F 7/44 ・・Dehydration of aluminium {oxide or} hydroxide, {i.e. all conversions of one form into another involving a loss of water}

C01F 7/441 ・・・{by calcination}

C01F 7/442 ・・・・{in presence of a calcination additive}

C01F 7/444 ・・・・{Apparatus therefor}

C01F 7/445 ・・・・{making use of a fluidised bed}

C01F 7/447 ・・・{by wet processes}

C01F 7/448 ・・・・{using superatmospheric pressure, e.g. hydrothermal conversion of gibbsite into boehmite}

C01F 7/46 ・・Purification of aluminium oxide, aluminium hydroxide or aluminates {(7/02H takes precedence)}

C01F 7/47 ・・・of aluminates, {e.g. removal of compounds of Si, Fe, Ga or of organic compounds from Bayer process liquors}

C01F 7/473 ・・・・{Removal of organic compounds, e.g. sodium oxalate}

C01F 7/476 ・・・・・{by oxidation}

C01F 7/48 ・Aluminium halides

C01F 7/50 ・・Fluorides

C01F 7/52 ・・・Double compounds containing both fluorine and other acid {halide} groups

C01F 7/54 ・・・Double compounds containing both aluminium and alkali metals or alkaline-earth metals

C01F 7/56 ・・Chlorides (containing fluorine C01F 7/52)

C01F 7/58 ・・・Preparation of anhydrous aluminium chloride

C01F 7/60 ・・・・from oxygen-containing aluminium compounds

C01F 7/62 ・・・Purification

C01F 7/64 ・・Bromides (containing fluorine C01F 7/52)

C01F 7/66 ・Aluminium nitrates (containing fluorine {C01F 7/002})

C01F 7/68 ・Aluminium compounds containing sulfur (containing fluorine {C01F 7/002})

C01F 7/70 ・・Sulfides

C01F 7/72 ・・Sulfites

C01F 7/74 ・・Sulfates

C01F 7/741 ・・・{Preparation from elemental aluminium or elemental aluminium containing materials, e.g. foil, dross}

C01F 7/743 ・・・{Preparation from silicoaluminious materials, e.g. clays, bauxite}

C01F 7/745 ・・・{Preparation from alums, e.g. alunite}

C01F 7/746 ・・・{After-treatment, e.g. dehydration, stabilisation}

C01F 7/748 ・・・・{Purification}

C01F 7/76 ・・・Double salts, {i.e. compounds containing, besides aluminium and sulfate ions, only other cations}, e.g. alums

C01F 7/762 ・・・・{Ammonium or alkali metal aluminium sulfates}

C01F 7/765 ・・・・・{Ammonium aluminium sulfates}

C01F 7/767 ・・・・{Alkaline earth metal aluminium sulfates}

C01F 11/00 Compounds of calcium, strontium, or barium (C01F 7/00 takes precedence)

C01F 11/005 ・{Preparation involving liquid-liquid extraction, absorption or ion-exchange}

C01F 11/02 ・Oxides or hydroxides (production of lime C04B 2/00)

C01F 11/04 ・・by thermal decomposition

C01F 11/06 ・・・of carbonates

C01F 11/08 ・・by reduction of sulfates

C01F 11/10 ・・from sulfides

C01F 11/12 ・・from silicates

C01F 11/16 ・・Purification

C01F 11/18 ・Carbonates

C01F 11/181 ・・{Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by control of the carbonation conditions}

C01F 11/182 ・・{Preparation of calcium carbonate by carbonation of aqueous solutions and characterised by an additive other than CaCO3-seeds}

C01F 11/183 ・・・{the additive being an organic compound}

C01F 11/184 ・・{Preparation of calcium carbonate by carbonation of solutions based on non-aqueous solvents}

C01F 11/185 ・・{After-treatment, e.g. grinding, purification, conversion of crystal morphology}

C01F 11/186 ・・{Strontium or barium carbonate}

C01F 11/187 ・・・{Strontium carbonate}

C01F 11/188 ・・・{Barium carbonate}

C01F 11/20 ・Halides

C01F 11/22 ・・Fluorides

C01F 11/24 ・・Chlorides

C01F 11/26 ・・・from sulfides

C01F 11/28 ・・・by chlorination of alkaline-earth metal compounds

C01F 11/30 ・・・Concentrating; Dehydrating; Preventing the adsorption of moisture or caking

C01F 11/32 ・・・Purification

C01F 11/34 ・・Bromides

C01F 11/36 ・Nitrates

C01F 11/38 ・・Preparation with nitric acid or nitrogen oxides

C01F 11/40 ・・Preparation by double decomposition with nitrates

C01F 11/42 ・・Double salts (with magnesium C01F 5/38)

C01F 11/44 ・・Concentrating; Crystallisating; Dehydrating; Preventing the absorption of moisture or caking

C01F 11/46 ・Sulfates (dehydration of gypsum {for the production of calcium sulfate cements}C04B 11/02)

C01F 11/462 ・・{Sulfates of Sr or Ba}

C01F 11/464 ・・{Sulfates of Ca from gases containing sulfur oxides}

C01F 11/466 ・・{Conversion of one form of calcium sulfate to another}

C01F 11/468 ・・{Purification of calcium sulfates}

C01F 11/48 ・Sulfites

C01F 13/00 Compounds of radium

C01F 15/00 Compounds of thorium

C01F 17/00 Compounds of the rare earth metals, i.e. scandium, yttrium, lanthanum, or the group of the lanthanides

C01F 17/0006 ・{Preparation involving a liquid-liquid extraction, an adsorption or an ion exchange}

C01F 17/0012 ・{Compounds containing besides rare earth metals two or more other element with the exception of oxygen or hydrogen, e.g. La4S3Br6 or ternary oxides or hydroxides, e.g. NaCeO2}

C01F 17/0018 ・・{Oxygen being the only anion}

C01F 17/0025 ・・・{Aluminates}

C01F 17/0031 ・・{Halogen being the only anion (compounds containing besides rare earth metals only different halogens, e.g. Sc C01F 17/0056)}

C01F 17/0037 ・・{Sulfur being the only anion}

C01F 17/0043 ・{Oxides or hydroxides (ternary oxides or hydroxides, e.g. NaCeO2 C01F 17/0018)}

C01F 17/005 ・{Carbonates}

C01F 17/0056 ・{Halides}

C01F 17/0062 ・・{Fluorides}

C01F 17/0068 ・・{Chlorides}

C01F 17/0075 ・{Nitrates}

C01F 17/0081 ・{Sulfates}

C01F 17/0087 ・{Sulfides}

C01F 17/0093 ・・{Oxysulfides}