SU601971A1 - Method of recovering and concentrating rare-earth and actinoid elements by extracting them from nitrogen-acidic solutions - Google Patents

Method of recovering and concentrating rare-earth and actinoid elements by extracting them from nitrogen-acidic solutions

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Publication number
SU601971A1
SU601971A1 SU752381074A SU2381074A SU601971A1 SU 601971 A1 SU601971 A1 SU 601971A1 SU 752381074 A SU752381074 A SU 752381074A SU 2381074 A SU2381074 A SU 2381074A SU 601971 A1 SU601971 A1 SU 601971A1
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SU
USSR - Soviet Union
Prior art keywords
ree
extraction
extracting
solution
actinides
Prior art date
Application number
SU752381074A
Other languages
Russian (ru)
Inventor
А.М. Розен
З.И. Николотова
Н.А. Карташева
К.С. Юдина
З.А. Беркман
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Предприятие П/Я Р-6575
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Application filed by Предприятие П/Я Р-6575 filed Critical Предприятие П/Я Р-6575
Priority to SU752381074A priority Critical patent/SU601971A1/en
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Publication of SU601971A1 publication Critical patent/SU601971A1/en

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Claims (3)

I эти экстрагенты дл  извлечени  граммовых количеств РЗЭ и актиноидов, использовать разбавители, содержащие непол рные компоненты (например, синтин). Также АМДФО позвол ют извлекать актиноидь и (или) РЗЭ в широком интервале кислотности исходного раствора (1(Г-16М) рез какой-либо специальной подготовки - вве ценил высаЛивателсй, упарки. Процесс осуществл етс  следующим образом водный раствор, содержащий актиноиды и (или) РЗЭ, контактирует с раствором диокиси АМДФО В разбавителе. Извлечение актиноидов и (или РЗЭ на 99% в больщинстве случаев может бьггь достигнуто за один контакт. Совместна  реэкстракци  актиноидов и РЗЭ из органической фазы осуществл етс  контактированием с раствором карбоната аммони  (5%-ный раствор, 3 контакта) или 0,050 ,25 М раствором ДПТА в 0,5-1 М молочной кислоте (1 контакт). Формула изобретени  1. Способ извлечени  и концентрировани  актиноидных и редкоземельных элементов из азотнокислых растворов экстракцией днокис ми арилдифосфинов с последующей реэкстракцией , отличающийс  тем, что, с целью повьщ1ени  извлечени  элементов и емкости зкстрагента , экстракцию осуществл ют диокис ми арйлметилендифосфинов с заместител ми в бензольном  дрвд общей формулы (СбН4В)2Р(О)СН2(0)РР2, где R - алкильный или алкокси радикал, R - арильна  (CeHjR) шш алкильна  группы, R - водород, алкильна  или алкокси группа. 2. Способ по п. 1, отличающийс  тем, что реэкстракцию осуществл ют растворами дизтилентриамштента )тссусной кислоты в молочной кислоте. Источники информации, прин тые во внимание при экспертизе 1. Розен А. М., Николотова 3. И., Картащева Н. А., Юдина К. С. Аномальна  зависимость прочности комплексов америци  1Й и других Me - Ш с диокис ми дифосфинов от их строени , ДАН СССР 222, N 5, 11S1, 1975. .I these extractants to extract gram quantities of REE and actinides, use diluents containing non-polar components (for example, sintin). Also, AMDFOE allows extracting actinide and (or) REE in a wide range of acidity of the initial solution (1 (G-16M) of any special preparation - introduced a high concentration, evaporation. The process is carried out as follows: an aqueous solution containing actinides and (or ) REE in contact with AMDDPA Dioxid Dioxide solution. Extracting actinides and (or 99% REE in most cases can be achieved in one contact. Co-extraction of actinides and REE from the organic phase is carried out by contacting with carb solution Ammonium onate (5% solution, 3 contacts) or 0.050, 25 M solution of DPTA in 0.5-1 M lactic acid (1 contact). Invention 1. Method for extracting and concentrating actinoid and rare-earth elements from nitric acid solutions by extraction of monoxide Aryl diphosphines with subsequent reextraction, characterized in that, in order to increase the extraction of elements and extractant capacity, the extraction is carried out with arylmethylenediphosphine dioxides with substituents in benzene drvd of the general formula (SbH4B) 2P (O) CH2 (0) PP2, where R is alkyl or alkoxy radic L, R - aryl (CeHjR) shsh alkyl group, R - is hydrogen, an alkyl or alkoxy group. 2. A method according to claim 1, characterized in that the reextraction is carried out with solutions of distilen-triamine (tartic acid) in lactic acid. Sources of information taken into account during the examination 1. Rosen A.M., Nikolotova 3. I., Kartashcheva N.A., Yudina KS. The strength dependence of americium 1Y and other Me-III complexes with diphosphines from anomalous their structures, DAN USSR 222, N 5, 11S1, 1975.. 2. Розен А. М., Николотова 2. Rosen A.M., Nikolotova 3. И.,Картаще&а Н. А., Юдина К. С. Экстракци  амераци  диокис ми дифосфинов, Радаохими , 17, N2, 237, 1975.3. I. I. Kartasche & N.A., Yudin K.S. Extraction of Amerci with Diphosphine Dioxides, Radaochem, 17, No. 2, 237, 1975.
SU752381074A 1975-07-02 1975-07-02 Method of recovering and concentrating rare-earth and actinoid elements by extracting them from nitrogen-acidic solutions SU601971A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU752381074A SU601971A1 (en) 1975-07-02 1975-07-02 Method of recovering and concentrating rare-earth and actinoid elements by extracting them from nitrogen-acidic solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU752381074A SU601971A1 (en) 1975-07-02 1975-07-02 Method of recovering and concentrating rare-earth and actinoid elements by extracting them from nitrogen-acidic solutions

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SU601971A1 true SU601971A1 (en) 1979-09-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600081A1 (en) * 1986-03-19 1987-12-18 Rhone Poulenc Chimie PROCESS FOR SEPARATING RARE EARTHS
RU2456689C2 (en) * 2006-10-23 2012-07-20 Коммиссариат А Л' Энержи Атомик Total removal of actinoids from strongly acidic water phase by means of solvating extractants in salting-out medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2600081A1 (en) * 1986-03-19 1987-12-18 Rhone Poulenc Chimie PROCESS FOR SEPARATING RARE EARTHS
AU600705B2 (en) * 1986-03-19 1990-08-23 Rhone-Poulenc Chimie Method for the separation of rare earths
RU2456689C2 (en) * 2006-10-23 2012-07-20 Коммиссариат А Л' Энержи Атомик Total removal of actinoids from strongly acidic water phase by means of solvating extractants in salting-out medium

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