SU899118A1 - Method of cleaning rare-earth element salts from metal impurities - Google Patents
Method of cleaning rare-earth element salts from metal impurities Download PDFInfo
- Publication number
- SU899118A1 SU899118A1 SU802940519A SU2940519A SU899118A1 SU 899118 A1 SU899118 A1 SU 899118A1 SU 802940519 A SU802940519 A SU 802940519A SU 2940519 A SU2940519 A SU 2940519A SU 899118 A1 SU899118 A1 SU 899118A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- salts
- earth element
- metal impurities
- rare
- purification
- Prior art date
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
1one
Изобретение относитс к способу очистки солей редкоземельных элементов (РЗЭ) и может быть использовано в технологии получени особо чистых веществ, в радиоэлектронике, лазерной технике, где требуютс вещества с содержанием микропримесей на уровне 1-5-10 %.The invention relates to a method for the purification of salts of rare-earth elements (REE) and can be used in the technology of obtaining highly pure substances in radio electronics and laser technology, where substances with trace impurities content of 1-5-10% are required.
Известен способ очистки солей РЗЭ путем сорбции на хелатных ионитах , содержащих карбоксиалкиламинные функциональные группы 03.A known method of purification of salts of rare-earth elements by sorption on chelate ion exchangers containing carboxyalkylamine functional groups 03.
Недостатком данного способа вл етс медленна кинетика обмена солей РЗЭ.The disadvantage of this method is the slow kinetics of the exchange of REE salts.
Наиболее близким к предлагаемому по технической сущности и достигаемому результату вл етс способ очистки солей редкоземельных элементов путем сорбции микропримесей металлов на ионите.The closest to the proposed technical essence and the achieved result is the method of purification of salts of rare-earth elements by sorption of trace metals on the ion exchanger.
Согласно данному способу в верхнюю зону ионообменной колонки, заполненной сульфокатионитом маркиAccording to this method, in the upper zone of an ion exchange column filled with sulfonic cation exchanger
КУ-2, ввод т раствор соли РЗЭ, подлежащий очистке, затем элюируют примеси раствором щавелевой кислоты и получают в конечном итоге очищенные соли РЗЭ, например хлористый неодим, со следующим содержанием примесей в пересчете на ., А1, Си, Мо по (4-5)-10 каждого, Fe, Са по (1-2 ) 10 каждого Г23.KU-2, a solution of the REE salt to be purified is introduced, then the impurities are eluted with a solution of oxalic acid and finally purified purified REE salts are obtained, for example, neodymium chloride, with the following impurity content in terms of, A1, Cu, Mo (4- 5) -10 each, Fe, Ca to (1-2) 10 each G23.
Недостатком известного способа The disadvantage of this method
10 вл етс недостаточно высока степень очистки солей РЗЭ от примесей, котора не позвол ет использовать полученные соединени в специальных отрасл х техники.10 is not a high enough degree of purification of REE salts from impurities, which does not allow to use the obtained compounds in special areas of the technique.
Кроме того, многостадийность способа (зар дка колонки, промывка, элюирование) обуславливает его низкую производительность и невозможность проведени процесса очистки в непрерывном режиме.In addition, the multistep method (column charging, washing, elution) causes its low productivity and the impossibility of carrying out the cleaning process in a continuous mode.
Цель изобретени - повышение степени очистки солей редкоземельных элементов и упрощение процесса.The purpose of the invention is to increase the degree of purification of salts of rare-earth elements and simplify the process.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802940519A SU899118A1 (en) | 1980-04-28 | 1980-04-28 | Method of cleaning rare-earth element salts from metal impurities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802940519A SU899118A1 (en) | 1980-04-28 | 1980-04-28 | Method of cleaning rare-earth element salts from metal impurities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU899118A1 true SU899118A1 (en) | 1982-01-23 |
Family
ID=20902066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802940519A SU899118A1 (en) | 1980-04-28 | 1980-04-28 | Method of cleaning rare-earth element salts from metal impurities |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU899118A1 (en) |
-
1980
- 1980-04-28 SU SU802940519A patent/SU899118A1/en active
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