PREPARATION PROCESS FOR RARE EARTH METAL FLUORIDES
A method of fluorinating a solid compound of a rare earth metal to produce a fluorinated rare earth metal compound in solid form includes reacting, in a reaction zone, a solid compound of the rare earth metal and gaseous hydrofluoric acid, thus producing the fluorinated rare earth metal compound in...
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Format | Patent |
Language | English French |
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09.08.2018
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Abstract | A method of fluorinating a solid compound of a rare earth metal to produce a fluorinated rare earth metal compound in solid form includes reacting, in a reaction zone, a solid compound of the rare earth metal and gaseous hydrofluoric acid, thus producing the fluorinated rare earth metal compound in solid form. The reaction takes place, in the reaction zone, in the presence of exogenous water, which is water that is exogenous to water that is produced in the reaction zone as water of reaction due to the reaction of the solid compound of the rare earth metal and the hydrofluoric acid. Conditions of temperature and pressure in the reaction zone avoid condensation of the exogenous water, the water of reaction when present, and the hydrofluoric acid.
Une méthode de fluoration d'un composé solide d'un métal des terres rares pour produire un composé de métal des terres rares fluoré sous forme solide consiste à faire réagir, dans une zone de réaction, un composé solide du métal des terres rares et de l'acide fluorhydrique gazeux, ce qui permet de produire le composé de métal des terres rares fluoré sous forme solide. La réaction a lieu, dans la zone de réaction, en présence d'eau exogène, qui est de l'eau qui est exogène à l'eau produite dans la zone de réaction en tant qu'eau de réaction due à la réaction du composé solide du métal des terres rares et de l'acide fluorhydrique. Les conditions de température et de pression dans la zone de réaction évitent la condensation de l'eau exogène, de l'eau de réaction lorsqu'elle est présente, et de l'acide fluorhydrique. |
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AbstractList | A method of fluorinating a solid compound of a rare earth metal to produce a fluorinated rare earth metal compound in solid form includes reacting, in a reaction zone, a solid compound of the rare earth metal and gaseous hydrofluoric acid, thus producing the fluorinated rare earth metal compound in solid form. The reaction takes place, in the reaction zone, in the presence of exogenous water, which is water that is exogenous to water that is produced in the reaction zone as water of reaction due to the reaction of the solid compound of the rare earth metal and the hydrofluoric acid. Conditions of temperature and pressure in the reaction zone avoid condensation of the exogenous water, the water of reaction when present, and the hydrofluoric acid.
Une méthode de fluoration d'un composé solide d'un métal des terres rares pour produire un composé de métal des terres rares fluoré sous forme solide consiste à faire réagir, dans une zone de réaction, un composé solide du métal des terres rares et de l'acide fluorhydrique gazeux, ce qui permet de produire le composé de métal des terres rares fluoré sous forme solide. La réaction a lieu, dans la zone de réaction, en présence d'eau exogène, qui est de l'eau qui est exogène à l'eau produite dans la zone de réaction en tant qu'eau de réaction due à la réaction du composé solide du métal des terres rares et de l'acide fluorhydrique. Les conditions de température et de pression dans la zone de réaction évitent la condensation de l'eau exogène, de l'eau de réaction lorsqu'elle est présente, et de l'acide fluorhydrique. |
Author | PRETORIUS, RYNO MOOLMAN, DANIEL LE ROUX, JOHANNES PETRUS NIEMAND, HENDRIK FAURIE |
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DocumentTitleAlternate | PROCEDE DE PREPARATION DE FLUORURES DE METAL DES TERRES RARES |
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Snippet | A method of fluorinating a solid compound of a rare earth metal to produce a fluorinated rare earth metal compound in solid form includes reacting, in a... |
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SubjectTerms | CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY |
Title | PREPARATION PROCESS FOR RARE EARTH METAL FLUORIDES |
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