| Patents for C01F 7 - Compounds of aluminium (12,677) |
|---|
| 08/04/1981 | US4282190 Process for the manufacture of iron and aluminum-free zinc chloride solutions |
| 08/04/1981 | US4282189 Precipitation of metal values from organic media |
| 08/04/1981 | US4282071 Adding a hydrocarbon oxidate to form a nonvolatile aluminum chloride compound |
| 08/04/1981 | CA1106144A1 Process for preparing alumina |
| 08/04/1981 | CA1106138A1 Pure alumina getting process through acid treatment of alumina bearing minerals containing other elements |
| 07/29/1981 | EP0032854A1 Process for obtaining a type A crystalline silicoaluminate with high water regain, and especially of type 4A, and product so obtained |
| 07/29/1981 | EP0032493A1 Decomposition of aluminum nitrate |
| 07/29/1981 | EP0032490A1 Alumina production by nitric acid extraction of clay |
| 07/29/1981 | EP0032489A1 Basic aluminum nitrate crystallization |
| 07/28/1981 | US4280987 Removal of carbon compounds |
| 07/28/1981 | CA1105675A1 Recovery of hydrogen chloride in carbochlorination of metal oxides |
| 07/28/1981 | CA1105674A1 Method of crystallizing aluminum sulphate solutions to form dust-free granules having uniform grain size |
| 07/21/1981 | US4279779 Spheroidal alumina particles and catalysts employing the particles as a support |
| 07/15/1981 | EP0032033A2 Beta-alumina solid electrolyte material and its use in sodium-containing electrochemical cells |
| 07/07/1981 | USRE30668 Impregnation of alumina with silicon compound followed by controlled oxidation |
| 07/07/1981 | US4277446 Removal of iron and titanium minerals from aluminum bearing materials by chlorination and beneficiation |
| 06/30/1981 | US4276274 Process for the production of finely divided oxides of metals or silicon |
| 06/30/1981 | US4276052 Alumina, air cooling |
| 06/30/1981 | CA1103901A1 Disposal of waste gases from production of aluminum chloride |
| 06/30/1981 | CA1103896A1 Methods for preparation and use of aluminas having contolled porosity |
| 06/24/1981 | EP0030798A1 Low temperature process for depositing oxide layers by photochemical vapor deposition |
| 06/23/1981 | US4275052 Hydrolysis of aluminum alkoxide in ether, ketone or aldehyde solvent |
| 06/23/1981 | US4275046 By reaction of a metal oxide with a fluorocarbon vapor |
| 06/23/1981 | US4275043 Removal of oxalate from bayer process liquor |
| 06/23/1981 | US4275042 Removal of oxalate from Bayer process liquor |
| 06/23/1981 | CA1103463A1 Continuous production of pure alumina |
| 06/23/1981 | CA1103462A1 Cyclic process for the production of metallurgically pure alumina |
| 06/16/1981 | US4273735 Production of spheroidal alumina shaped articles |
| 06/16/1981 | CA1103038A1 Cyclic production of high purity alumina |
| 06/16/1981 | CA1103001A1 Process for heat decomposition of hexa-hydrated aluminum chloride by indirect heating |
| 06/09/1981 | US4272029 Upgrading of bauxites, bauxitic clays, and aluminum mineral bearing clays |
| 06/02/1981 | US4271138 Process for producing aluminum oxychloride solutions from low molecular weight aluminum alkoxides |
| 06/02/1981 | US4270954 Inorganic fibers |
| 05/28/1981 | WO1981001403A1 A method of preparing water purifying agents |
| 05/27/1981 | EP0029253A1 Process for improving the formation of hydrous alumina dispersed within a weak base anion exchange resin and use of the composite prepared for the recovery of Li+ from brine |
| 05/26/1981 | CA1101826A1 Zeolite a crystals of uniformly small particle size and the manufacture thereof |
| 05/12/1981 | US4267161 Method of making aluminum chlorohydrate |
| 05/05/1981 | US4265864 Process for treating bauxite or similar raw material |
| 05/05/1981 | US4265863 Integrated process for treatment of residual solutions from anodization plants |
| 05/05/1981 | US4265716 Disproportionation of aluminum sulfide formed over carbon reducing agent |
| 05/05/1981 | CA1100284A1 Method for obtaining aluminium oxide |
| 04/28/1981 | US4264569 Production of anhydrous aluminium chloride |
| 04/28/1981 | US4264332 Process for the preparation of pure aluminum chloride hexahydrate |
| 04/21/1981 | US4263261 Method for the removal of impurities from sodium aluminate solution |
| 04/21/1981 | CA1099522A1 Method of recovering gallium from very basic solutions by liquid/liquid extraction |
| 04/21/1981 | CA1099497A1 METHOD OF PREPARING DENSE, HIGH STRENGTH, AND ELECTRICALLY CONDUCTIVE CERAMICS CONTAINING .beta.- ALUMINA |
| 04/15/1981 | EP0026761A1 Methods and apparatus for generating heat and electrical energy from aluminum waste and other inexpensive aluminum products |
| 04/14/1981 | US4261958 Process for the production of sodium aluminate |
| 04/14/1981 | CA1099081A1 Pyrohydrolysis process for spent aluminum reduction cell linings |
| 04/14/1981 | CA1099080A1 Pyrohydrolysis system for processing fluorine- containing spent and waste materials |
| 04/14/1981 | CA1099079A1 Modified pyrohydrolysis process for spent aluminum reduction cell linings |
| 04/07/1981 | US4260589 Production of alumina from aluminum nitrate solutions |
| 04/07/1981 | US4260585 Apparatus for manufacture of low-soda alumina granules |
| 04/01/1981 | EP0025900A1 Process for producing shaped spherical bodies based on Al2O3 and their use |
| 04/01/1981 | EP0025817A1 A method for forming stable dispersions of alumina in water and the so-obtained dispersions |
| 03/31/1981 | US4259311 Aluminum chloride hexahydrate decomposed in hydrogen to alumina of low residual chlorine content |
| 03/31/1981 | US4259298 Dechlorination in presence of reducing agent, recovering chlorine as chloride of reducing agent |
| 03/31/1981 | CA1098284A1 Method of and apparatus for extracting alumina from bauxite |
| 03/24/1981 | US4258023 Process for the pyrogenous production of very finely divided oxides of a metal and/or of a metalloid |
| 03/24/1981 | CA1097889A1 Method for producing bayerite |
| 03/17/1981 | US4256722 Process for producing porous spinel materials |
| 03/17/1981 | US4256714 Evaporation of water and nitric acid from solution also containing alumina; holding quietly; injection of water; separation of large crystals |
| 03/17/1981 | US4256709 From alkaline aluminumsilicates, limestone, comminution |
| 03/17/1981 | CA1097483A1 Method for the separation of precipitated aluminium hydroxide from sodium aluminate solution |
| 03/10/1981 | CA1097313A1 Preparation of novel catalyst support |
| 03/03/1981 | US4254088 Selective extraction from acid solution |
| 02/25/1981 | EP0024131A1 A method of obtaining alumina from clay and other alumino-silicates and alumina obtained by this method |
| 02/24/1981 | US4252777 Recovery of aluminum and other metal values from fly ash |
| 02/24/1981 | US4252776 Aluminum dross processing |
| 02/24/1981 | US4252774 Method of processing aluminous ores |
| 02/24/1981 | US4252735 Stable aqueous alkali metal aluminate solutions |
| 02/19/1981 | WO1981000402A1 Basic aluminum nitrate crystallization |
| 02/19/1981 | WO1981000401A1 Decomposition of aluminum nitrate |
| 02/19/1981 | WO1981000400A1 Alumina production by nitric acid extraction of clay |
| 02/19/1981 | WO1981000397A1 Nitric acid reconstitution |
| 02/17/1981 | US4251600 From alumina or aluminum hydroxide with lithium hydroxide |
| 02/17/1981 | US4251501 Process of preparing high purity cryolite from fluoride solution containing dissolved silica |
| 02/17/1981 | US4251497 Process control by correlating heat of neutralization with concentration; sulfur dioxide |
| 02/17/1981 | CA1095690A1 Polycrystalline alumina material |
| 02/11/1981 | EP0023615A1 Device for the evaporation of aluminium trichloride |
| 02/11/1981 | EP0023588A1 Temperature-stabilized pyrogenic oxide mixture of alumina oxide, process for its production and its use |
| 02/11/1981 | EP0023564A1 Process for storing and handling wet hydrated alumina |
| 02/10/1981 | US4250032 Filtration, fluidizing with sea water, neutralizing soda |
| 02/03/1981 | US4248852 Process for the production of alumina suitable for use as a catalyst carrier |
| 02/03/1981 | US4248849 Process for the continuous dehydration and calcination of hydrated aluminum fluoride for the manufacture of high purity aluminum fluoride |
| 02/03/1981 | CA1094780A1 Process for the preparation of agglomerates porous aluminium oxide |
| 01/27/1981 | CA1094583A1 Hardened product composition and process of producing the same |
| 01/27/1981 | CA1094292A1 No translation available |
| 01/27/1981 | CA1094289A1 Aluminum compound and medicament containing it |
| 01/20/1981 | US4246239 Extraction with nitric acid, decomposing the aluminum nitrate nonahydrate |
| 01/20/1981 | CA1093832A1 Process for the utilization of waste materials from electrolytic aluminum reduction systems |
| 01/14/1981 | EP0022172A1 Process for producing finely divided metal oxides |
| 01/13/1981 | US4244935 Method of forming metal chlorides |
| 01/13/1981 | US4244928 Process for the production of pure aluminum oxide |
| 01/13/1981 | US4244835 Method of dispersing alpha alumina monohydrate |
| 01/06/1981 | US4243640 Nitric acid pretreatment |
| 01/06/1981 | US4243555 Composition for recovery of MG++ from brines |
| 01/06/1981 | US4243429 Process for producing tobermorite and ettringite |
| 01/06/1981 | CA1092852A1 Measuring and controlling the addition of suspension material to a process stream |
| 12/30/1980 | US4242328 Dried aluminum hydroxide gels, solvents |