RU2008120075A - METHOD FOR PRODUCING CARBOXYLATES OF RARE-EARTH ELEMENTS - Google Patents
METHOD FOR PRODUCING CARBOXYLATES OF RARE-EARTH ELEMENTS Download PDFInfo
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- RU2008120075A RU2008120075A RU2008120075/04A RU2008120075A RU2008120075A RU 2008120075 A RU2008120075 A RU 2008120075A RU 2008120075/04 A RU2008120075/04 A RU 2008120075/04A RU 2008120075 A RU2008120075 A RU 2008120075A RU 2008120075 A RU2008120075 A RU 2008120075A
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- rare earth
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- earth elements
- carboxylates
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Abstract
Способ получения карбоксилатов редкоземельных элементов взаимодействием при перемешивании и при повышенной температуре оксидов редкоземельных элементов с α,α'-разветвленными монокарбоновыми кислотами или их смесями в присутствии воды при молярном соотношении воды к редкоземельному элементу, равном 1-3:1, с последующей азеотропной осушкой полученных растворов карбоксилатов редкоземельных элементов, отличающийся тем, что процесс проводят при нагревании от 100 до 150°С со скоростью 10°С в час при молярном соотношении кислоты к редкоземельному элементу, равном 4:1, с удалением основной массы воды в ходе синтеза с потоком инертного газа, барботируемого через реакционную смесь, без стадии отстаивания от непрореагировавших оксидов редкоземельных элементов. The method of obtaining carboxylates of rare earth elements by interaction with stirring and at elevated temperatures of oxides of rare earth elements with α, α'-branched monocarboxylic acids or their mixtures in the presence of water at a molar ratio of water to rare earth element equal to 1-3: 1, followed by azeotropic drying of the obtained solutions of carboxylates of rare earth elements, characterized in that the process is carried out by heating from 100 to 150 ° C at a rate of 10 ° C per hour at a molar ratio of acid to rare earth element equal to 4: 1, with the removal of the bulk of water during synthesis with an inert flow gas bubbling through the reaction mixture without the stage of settling from unreacted oxides of rare earth elements.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2008120075/04A RU2382760C2 (en) | 2008-05-20 | 2008-05-20 | Method of producing carboxylates of rare-earth elements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2008120075/04A RU2382760C2 (en) | 2008-05-20 | 2008-05-20 | Method of producing carboxylates of rare-earth elements |
Publications (2)
Publication Number | Publication Date |
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RU2008120075A true RU2008120075A (en) | 2009-11-27 |
RU2382760C2 RU2382760C2 (en) | 2010-02-27 |
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Family Applications (1)
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RU2008120075/04A RU2382760C2 (en) | 2008-05-20 | 2008-05-20 | Method of producing carboxylates of rare-earth elements |
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RU (1) | RU2382760C2 (en) |
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- 2008-05-20 RU RU2008120075/04A patent/RU2382760C2/en active
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Publication number | Publication date |
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RU2382760C2 (en) | 2010-02-27 |
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