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| Number | Title | Issue Date |
| 7368590 | Method for separating aluminium chloride from organochlorosilanes Aluminum chloride is removed effectively from compound mixtures containing organochlorosilanes such as are produced in the direct synthesis, by adding a diluent containing organochlorosilanes and optionally chloromethane to a solids content | 05/06/2008 |
| 6808695 | Process for continuously producing aluminum from clays A process for purifying solid crude aluminum chloride, containing iron impurities, includes the steps of mixing iron with the crude aluminum chloride and reactively subliming and desubliming the mixture. A process for continuous production of metal chlorides include... | 10/26/2004 |
| 6507020 | Halide compound mass spectrometry method and mass spectrometry apparatus A mass spectrometry apparatus is provided with an emitter for emitting metal ions, a reaction chamber where the detected gas is introduced and ionized by the metal ions, an aperture for guiding molecules of the ionized detected gas, and a mass spectromete... | 01/14/2003 |
| 5277889 | Method for depositing pure metal halide compositions Metal halide compositions of enhanced purity are produced by vapor phase deposition via reactions involving organometallic starting materials in a process wherein a carbon getter is provided in the reaction zone and/or adjacent the developing metal halide... | 01/11/1994 |
| 4957722 | Production of partially calcined carbonaceous reductant using steam A process for producing chlorides by the chlorination of a material selected from the group consisting of aluminous materials and metal and metalloid oxides in the presence of a reductant. The method comprises calcining a carbonaceous material with added ... | 09/18/1990 |
| 4891204 | Purification of aluminum chloride Aluminium chloride contaminated with iron chloride is purified by contacting it in vapor form with a bed of particles of aluminium metal interspersed with particles of a chemically inert material. The efficiency of the process may be maintained by acid tr... | 01/02/1990 |
| 4769227 | Preparation of anhydrous aluminum chloride Anhydrous aluminum chloride is prepared by reacting γ-alumina with carbon monoxide and chlorine and/or phosgene in a fluidized bed at from 400° to 700° C. The γ-alumina used gives, with CuK radiation, an X-ray diffraction pattern who... | 09/06/1988 |
| 4765968 | Fluorinated carbon composition for use in fabricating a Li/CFx battery cathode A means to eliminate the suppression of the closed circuit voltage of a Li/CFx battery during the initial part of its discharge is effected by blending an additive CFx which does not show significant voltage suppression with the (bul... | 08/23/1988 |
| 4699770 | Production of a purified alumina-silica product and substantially pure aluminum chloride from bauxites, bauxitic clays, kaolinitic clays and mixtures thereof The invention is primarily directed to the production of a substantially iron free alumina-silica product and substantially iron free aluminum chloride from bauxites, bauxitic clays and kaolinitic clays wherein the feed material to an agglomeration stage ... | 10/13/1987 |
| 4695436 | Process for manufacturing high purity metal chlorides A mixture of an aluminous ore and a carbon source is dried and calcined in the presence of a sulfur-containing compound. The mixture is then chlorinated to produce crude metal chlorides. Aluminum chloride is condensed and separated from the remaining meta... | 09/22/1987 |
| 4652434 | Chlorination of ores containing alkali or alkaline earth values The invention pertains to an entrained-downflow chlorination process of fine metalliferous ores particularly containing alkali and/or alkaline earth metals greater than about 0.3% by weight as the oxide. The process includes a quenching step following the... | 03/24/1987 |
| 4614643 | Process for treating liquid chlorinated hydrocarbon wastes containing iron Ferric chloride contained in liquid waste streams comprising higher boiling chlorinated hydrocarbons may be substantially reduced by contacting the waste stream with an amount of water sufficient to convert a substantial amount of the ferric chloride in s... | 09/30/1986 |
| 4597840 | Process for the continuous production of aluminum by the carbochlorination of alumina and igneous electrolysis of the chloride obtained A process for the production of aluminum by the electrolysis of anhydrous aluminum chloride produced by the carbochlorination of alumina in a molten salt bath containing at least one alkali metal and/or alkaline-earth metal halide, comprising carrying out... | 07/01/1986 |
| 4576636 | Process for beneficiating oxidic ores A process for the beneficiation of an iron-containing material is carried out by first chlorinating the iron-containing material. Oxidation of ferrous chloride in the effluent gas from the chlorination is carried out under controlled conditions of oxygen ... | 03/18/1986 |
| 4565674 | Alumina chlorination In preparing AlCl3 from Al2 O3 at about 750°-950° C. in a carbothermic process, the rate of the reaction is increased by adding a catalytically active amount of a catalyst selected from the group consisting of: alkali fl... | 01/21/1986 |
| 4563338 | Selective chlorination method for mixtures of metallic oxides of natural or synthetic origin A selective chlorination method of a mixture of simple or complex metallic oxides, comprising at least one of the elements to be used, iron, aluminum, titanium and silicon, as well as the impurities accompanying said elements, said method consisting of a ... | 01/07/1986 |
| 4559215 | Production of anhydrous aluminum chloride from hydrated alumina A process is described for the direct chlorination of hydrated alumina (preferably alumina trihydrate) to aluminum chloride hexahydrate (ACH) by reaction with concentrated hydrochloric acid. Preferably all of the initial hydrated alumina is converted to A... | 12/17/1985 |
| 4541907 | Process for decomposing chlorinated hydrocarbon compounds A process for decomposing chlorinated hydrocarbon compounds wherein the compounds are heated to an elevated temperature of about 800° to 1200° C. and reacted with alumina and a reactive carbon source. A preferred operating temperature is about 800° to ... | 09/17/1985 |
| 4514373 | Purification of aluminum chloride The purification of aluminum chloride, with the crude aluminum chloride normally being obtained through a process of carbo-chlorination of metallic ores, in particularly aluminum bearing ores, to make the metallic chlorides, in particular aluminum chlorid... | 04/30/1985 |
| 4465659 | Aluminum production via the chlorination of partially calcined aluminum chloride hexahydrate An improved method of producing anhydrous aluminum chloride via aluminum chloride hexahydrate is provided. In a preferred embodiment the method is incorporated into a process for producing aluminum from aluminous ores, and particularly from domestic ore s... | 08/14/1984 |
| 4459274 | Chlorination using partially calcined carbonaceous material as a reductant An improved solid carbon reductant comprising partially calcined carbonaceous materials such as petroleum coke, containing relatively low amounts of residual hydrocarbons and a relatively high surface area and thus increased activity as compared to known ... | 07/10/1984 |
| 4457812 | Critical solvent separations in inorganic systems A process for separating inorganic substances involving their abstraction from a mixture with near-supercritical inorganic fluids. One or more inorganic substances are abstracted and then separatively recovered by retrograde condensations. The process par... | 07/03/1984 |
| 4438086 | Method for preparation of graphite fluoride by contact reaction between carbon and fluorine gas A method and apparatus for preparation of a graphite fluoride such as (CF)n or (C2 F)n by heterogeneous contact reaction between a carbon material such as graphite or petroleum coke and fluorine gas at about 200°-550° C.... | 03/20/1984 |
| 4435379 | Process for treating chlorinated hydrocarbons A process is described for reacting chlorinated hydrocarbons other than carbon tetrachloride with metal oxides so as to convert essentially all of the carbon atoms to oxides of carbon. This process provides an efficient and economical means for utilizing ... | 03/06/1984 |
| 4434149 | Acid melt treatment to activate carbon for use as reductant A novel method of activating carbon is provided comprising contacting the carbon with low temperature aluminum chloride acid melts comprising at least 50 mole percent aluminum chloride and less than 50 mole percent of at least one halide salt capable of e... | 02/28/1984 |
| 4402924 | Preparation of high surface area metal fluorides and metal oxyfluorides, especially aluminum fluoride extrudates A method is described for the preparation of high surface area metal fluorides and metal oxyfluorides comprising reacting high surface area metal oxides with a fluorocarbon vapor wherein the fluorocarbon is selected from the group consisting of CH4-Q... | 09/06/1983 |
| 4374018 | Method for producing upgraded products from a heavy oil feed Method for converting a heavy or high boiling fraction oil to separate upgraded products, namely synthetic natural gas and carbon-coated aluminum, by hydrocracking the residual oil in the presence of particulate alumina at elevated temperature and pressur... | 02/15/1983 |
| 4355017 | Aluminum electrolytic cell cathode waste recovery Recovery of fluoride values from carbonaceous waste cathode materials is achieved by reacting the waste materials with oxygen, water, and sulfur dioxide at temperatures between about 600° C. and 1200° C.... | 10/19/1982 |
| 4352787 | Ultra-hard particles of carbon produced by reacting metal carbide with non-metal halide in hot melt system The production of ultra-hard particles composed substantially of carbon as the dominant element is taught. The ultra-hard particle comprises a covalently bonded lattice structure produced by reacting a carbide selected from the group consisting of acetyli... | 10/05/1982 |
| 4349420 | Fractional distillation process for the production of aluminum chloride Metal chlorides such as aluminum chloride (AlCl3) are separated from a mixture containing metal chlorides including AlCl3 and ferric chloride (FeCl3). In order to effect this separation, the mixture is subjected to a fract... | 09/14/1982 |
| 4331637 | Process for purifying aluminum chloride A method for purifying with respect to iron, aluminum chloride produced via the chlorination of aluminum bearing ores or materials which also contain iron. The process comprising the steps of: 1. chlorinating the aluminum value containing material in a manner ... | 05/25/1982 |
| 4289735 | Process for the production of aluminum chloride The efficiency of a given reactor for the conversion of aluminum oxide bearing starting material by means of reducing and chlorinating gases or of carbon coated aluminum oxide bearing starting material by means of chlorinating gases in a solid/gas fluidiz... | 09/15/1981 |
| 4288411 | Process for the selective production of a plurality of individual pure halides and/or halide mixtures from a mixture of solid oxides The process is based on the series of halide-forming affinities. The oxides are passed through a series of zones equal in number to the plurality of halides or mixtures which are to be produced. A halide of an element of lower halide-forming affinity is f... | 09/08/1981 |
| 4284607 | Chlorination of aluminous materials using preselected solid reducing agents Chlorination of aluminous materials such as alumina and bauxite is carried out at 575° to 750° C. in the presence of a solid reducing agent. The reducing agent is a green coke which has been calcined at a temperature between 650° C. and 900° C. for a ... | 08/18/1981 |
| 4275050 | Production of ultra-hard particles The production of an ultra-hard particle composed substantially of carbon as the dominant element is taught. The ultra-hard particle is the product of the reaction of a metal carbide selected from the group consisting of Al4 C3 and B... | 06/23/1981 |
| 4275046 | Preparation of high surface area metal fluorides and metal oxyfluorides, especially aluminum fluoride extrudates A method is described for the preparation of high surface area metal fluorides and metal oxyfluorides comprising reacting high surface area metal oxides with a fluorocarbon vapor wherein the fluorocarbon is selected from the group consisting of CH4-Q... | 06/23/1981 |
| 4264569 | Production of anhydrous aluminium chloride A process for obtaining anhydrous aluminium chloride from aluminium chloride hexahydrate comprises heating the hexahydrate at a temperature in the range 200°-450° C. until it is substantially dehydrated and reacting the dehydrated material at a temperat... | 04/28/1981 |
| 4244935 | Method of forming metal chlorides A method of forming the chloride of a metal-oxygen-containing substance, including the steps of coating particles of such substance with green carbon, i.e. carbon which contains substances more volatile than carbon, heating the coated particles to drive o... | 01/13/1981 |
| 4235860 | Chlorination of aluminous material at superatmospheric pressure Aluminous material is chlorinated in the presence of a reducing agent at pressures greater than three atmospheres. A greater than linear increase in reaction rate obtained at superatmospheric pressures is a feature of the chlorination reaction which is em... | 11/25/1980 |
| 4190639 | Recovery of hydrogen chloride in carbo-chlorination of metal oxides In the conversion of a metal oxide to a metal chloride by reaction with chlorine and carbon monoxide wherein hydrogen chloride is produced as byproduct, the byproduct hydrogen chloride is contacted with a molten salt mixture containing the higher and lowe... | 02/26/1980 |
