Compounds of aluminium

CCHEMISTRY METALLURGY C01Inorganic chemistry C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS

C01F7/00Compounds of aluminium

C01F7/001Aluminium carbonate C01F7/002Compounds containing, besides aluminium, two or more other elements, with the exception of oxygen and hydrogen C01F7/004containing carbonate ions C01F7/005Hydrotalcite C01F7/007containing, besides aluminium, only anions C01F7/008Ammonium aluminium fluorides C01F7/02Aluminium oxide Aluminium hydroxide Aluminates C01F7/021After-treatment of oxides or hydroxides C01F7/022Classification C01F7/023Grinding, deagglomeration, disintegration C01F7/025Granulation, agglomeration C01F7/026Making or stabilising dispersions C01F7/027Treatment involving fusion or vaporisation C01F7/028Beta-aluminas C01F7/04Preparation of alkali metal aluminates Aluminium oxide or hydroxide therefrom C01F7/043Lithium aluminate C01F7/046Stabilisation of aluminates C01F7/06by treating aluminous minerals or waste-like raw materials with alkali hydroxide C01F7/0606Make-up of the alkali hydroxide solution from recycled spent liquor C01F7/0613Pretreatment of the minerals C01F7/062Digestion C01F7/0626Processes making use of tube digestion only C01F7/0633characterised by the use of additives C01F7/064Apparatus for digestion C01F7/0646Separation of the insoluble residue C01F7/0653characterised by the flocculant added to the slurry C01F7/066Treatment of the separated residue C01F7/0666Process control or regulation C01F7/0673from phosphate-containing minerals C01F7/068from carbonate-containing minerals C01F7/0686from sulfate-containing minerals C01F7/0693from waste-like raw materials C01F7/08by treating aluminous minerals with sodium carbonate C01F7/085according to the lime-sinter process C01F7/10by treating aluminous minerals with alkali sulfates and reducing agents C01F7/12Alkali metal aluminates from alkaline-earth metal aluminates C01F7/14Aluminium oxide or hydroxide from alkali metal aluminates C01F7/141from aqueous aluminate solutions by neutralisation with an acidic agent C01F7/142with carbon dioxide C01F7/144from aqueous aluminate solutions by precipitation due to cooling C01F7/145characterised by a crystal growth modifying agent other than aluminium hydroxide seed C01F7/147Apparatus for precipitation C01F7/148Separation of the obtained hydroxide C01F7/16Preparation of alkaline-earth metal aluminates or magnesium aluminate Aluminium oxide or hydroxide therefrom C01F7/162Magnesium aluminates C01F7/164Calcium aluminates C01F7/166Strontium aluminates C01F7/168Barium aluminates C01F7/18Aluminium oxide or hydroxide from alkaline-earth metal aluminates C01F7/20Preparation of aluminium oxide or hydroxide from aluminous ores with acids or salts C01F7/22with halides or halogen acids C01F7/24with nitric acid or nitrogen oxides C01F7/26with sulfuric acids or sulfates C01F7/28with sulfurous acid C01F7/30Preparation of aluminium oxide or hydroxide by thermal decomposition or by hydrolysis or oxidation of aluminium compounds C01F7/302Hydrolysis or oxidation of gaseous aluminium compounds in the gas phase C01F7/304of organic aluminium compounds C01F7/306Thermal decomposition of hydrated chlorides C01F7/308Thermal decomposition of nitrates C01F7/32Thermal decomposition of sulfates including complex sulfates C01F7/34Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts C01F7/36from organic aluminium salts C01F7/38Preparation of aluminium oxide by thermal reduction of aluminous minerals C01F7/40in the presence of aluminium sulfide C01F7/42Preparation of aluminium oxide or hydroxide from metallic aluminium C01F7/422by oxidation with a gaseous oxidator at a high temperature C01F7/424using a plasma C01F7/426by applying mechanical energy to solid aluminium at a low temperature C01F7/428by oxidation in an aqueous solution C01F7/44Dehydration of aluminium oxide or hydroxide C01F7/441by calcination C01F7/442in presence of a calcination additive C01F7/444Apparatus therefor C01F7/445making use of a fluidised bed C01F7/447by wet processes C01F7/448using superatmospheric pressure C01F7/46Purification of aluminium oxide, aluminium hydroxide or aluminates C01F7/47of aluminates C01F7/473Removal of organic compounds C01F7/476by oxidation C01F7/48Aluminium halides C01F7/50Fluorides C01F7/52Double compounds containing both fluorine and other acid halide groups C01F7/54Double compounds containing both aluminium and alkali metals or alkaline-earth metals C01F7/56Chlorides C01F7/58Preparation of anhydrous aluminium chloride C01F7/60from oxygen-containing aluminium compounds C01F7/62Purification C01F7/64Bromides C01F7/66Aluminium nitrates C01F7/68Aluminium compounds containing sulfur C01F7/70Sulfides C01F7/72Sulfites C01F7/74Sulfates C01F7/741Preparation from elemental aluminium or elemental aluminium containing materials C01F7/743Preparation from silicoaluminious materials C01F7/745Preparation from alums C01F7/746After-treatment C01F7/748Purification C01F7/76Double salts, i.e. compounds containing, besides aluminium and sulfate ions, only other cations C01F7/762Ammonium or alkali metal aluminium sulfates C01F7/765Ammonium aluminium sulfates C01F7/767Alkaline earth metal aluminium sulfates