RU2008120075A - METHOD FOR PRODUCING CARBOXYLATES OF RARE-EARTH ELEMENTS - Google Patents

METHOD FOR PRODUCING CARBOXYLATES OF RARE-EARTH ELEMENTS Download PDF

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Publication number
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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RU
Russia
Prior art keywords
rare earth
rare
earth elements
carboxylates
water
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RU2008120075/04A
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Russian (ru)
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RU2382760C2 (en
Inventor
Ильдус Шайхитдинович Насыров (RU)
Ильдус Шайхитдинович Насыров
Юрий Петрович Баженов (RU)
Юрий Петрович Баженов
Александра Васильевна Петрунина (RU)
Александра Васильевна Петрунина
Владимир Михайлович Ильин (RU)
Владимир Михайлович Ильин
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Закрытое акционерное общество "Каучук" (RU)
Закрытое акционерное общество "Каучук"
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Priority to RU2008120075/04A priority Critical patent/RU2382760C2/en
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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.

Claims (1)

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. A method of producing rare-earth carboxylates by reacting with stirring and at elevated temperature rare-earth oxides with α, α ' -branched monocarboxylic acids or mixtures thereof 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 rare earth carboxylates, characterized in that the process is carried out by heating from 100 to 150 ° C at a rate of 10 ° C per hour with a molar ratio of acid to rare earth 4: 1 element, with the removal of the bulk of the water during synthesis with a stream of inert gas sparged through the reaction mixture, without the stage of settling from unreacted rare earth oxides.
RU2008120075/04A 2008-05-20 2008-05-20 Method of producing carboxylates of rare-earth elements RU2382760C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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
RU2008120075/04A RU2382760C2 (en) 2008-05-20 2008-05-20 Method of producing carboxylates of rare-earth elements

Publications (2)

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RU2008120075A true RU2008120075A (en) 2009-11-27
RU2382760C2 RU2382760C2 (en) 2010-02-27

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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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RU2382760C2 (en) 2010-02-27

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