SU1636337A1 - Method of extraction of rare-earth metals from apatite - Google Patents
Method of extraction of rare-earth metals from apatite Download PDFInfo
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- SU1636337A1 SU1636337A1 SU894702987A SU4702987A SU1636337A1 SU 1636337 A1 SU1636337 A1 SU 1636337A1 SU 894702987 A SU894702987 A SU 894702987A SU 4702987 A SU4702987 A SU 4702987A SU 1636337 A1 SU1636337 A1 SU 1636337A1
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- SU
- USSR - Soviet Union
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- apatite
- extraction
- rare
- ree
- phosphoric acid
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- Manufacture And Refinement Of Metals (AREA)
Abstract
Изобретение относитс к гидрометаллургии редких элементов и позвол ет повысить степень извлечени редкоземельных элементов. Предлагаемый спосоЬ включает разложение апатита фосфорной кислотой при 100°CS отделение ::ерастворившегос остатка, введение в раствор фосфата кальци до концентрации 50-55 г/л по СаО с последующим выдерживанием смеси при 90-100°С в течение 0,6-1 ч и отделении РЗЭ-содержащего осадка. Способ позвол ет извлечь 70-75% РЗЭ из фос- форно-кислого раствора на первой стадии переработки апатита по сравнению с 65% по прототипу. 1 табл.This invention relates to the hydrometallurgy of rare elements and makes it possible to increase the degree of extraction of rare earth elements. The proposed method involves the decomposition of apatite with phosphoric acid at 100 ° C CS separation: the solvent residue, the introduction into the calcium phosphate solution to a concentration of 50-55 g / l in CaO, followed by keeping the mixture at 90-100 ° C for 0, 6-1 h and the separation of REE-containing sediment. The method allows to extract 70-75% REE from a phosphoric acid solution at the first stage of apatite processing, compared with 65% of the prototype. 1 tab.
Description
Изобретение относитс к гидрометаллургии редких элементов, в частности к технологии соединений редкоземельных элементов (РЗЭ), и может быть использовано в цветной металлургии и производстве удобрений.The invention relates to the hydrometallurgy of rare elements, in particular to the technology of compounds of rare earth elements (REE), and can be used in non-ferrous metallurgy and the production of fertilizers.
Целью изобретени вл етс повышение степени извлечени РЗЭ.The aim of the invention is to increase the recovery rate of REE.
Пример 1. 2,50 г апатита раствор ют при кип чении в течение 1 ч в оборотной 32%-ной в соотношении апатит: Н}РО, равном 1:7, отфильтровывают нерастворившийс остаток . В раствор после охлаждени его до комнатной температуры добавл ют при перемешивании 8,00 г Саэ(Р04.)2., содержание в растворе СаО 54,7 г/л. Концентраци РЗЭ в исходном растворе 0,3416- г/л. Полученный раствор нагревают до 90°С и выдерживают при этой температуре в течение 1 ч. Затем отфильтровывают образовавшийс осадок. Содержание РЗЭ в конечном растворе 0,0854 г/л. Извлечение РЗЭ из раствора составл ет 75%.Example 1. 2.50 g of apatite are dissolved by boiling for 1 hour in a reverse 32% apatite: H} PO ratio of 1: 7, and the insoluble residue is filtered off. After cooling it to room temperature, 8.00 g of Cae (P04.) 2. Is added to the solution with a CaO content of 54.7 g / l. The concentration of REE in the initial solution is 0.3416 g / l. The resulting solution is heated to 90 ° C and maintained at this temperature for 1 hour. The precipitate is then filtered off. The content of REE in the final solution of 0.0854 g / l. Removing the REE from the solution is 75%.
Данные примеров 1-5 приведены в таблице, в которой показано извлечение РЗЭ () в осадок целевого продукта при изменении варьируемых параметров.The data of examples 1-5 are shown in the table, which shows the extraction of REE () in the sediment of the target product when changing the variable parameters.
По сравнению с известным предлагаемый способ позвол ет повысить извлечение Ьп20э в продукт на 5-10%.Compared with the known method, the proposed method allows to increase the extraction of Lp20e into the product by 5-10%.
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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SU894702987A SU1636337A1 (en) | 1989-02-17 | 1989-02-17 | Method of extraction of rare-earth metals from apatite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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SU894702987A SU1636337A1 (en) | 1989-02-17 | 1989-02-17 | Method of extraction of rare-earth metals from apatite |
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SU1636337A1 true SU1636337A1 (en) | 1991-03-23 |
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SU894702987A SU1636337A1 (en) | 1989-02-17 | 1989-02-17 | Method of extraction of rare-earth metals from apatite |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994013845A1 (en) * | 1991-07-01 | 1994-06-23 | Sovmestnoe Rossiisko-Shvedskoe Predpriyatie 'horos' | Process for extracting rare-earth elements from phosphate ore |
RU2458863C1 (en) * | 2011-02-14 | 2012-08-20 | Открытое акционерное общество "Акрон" | Method of extracting rare-earth concentrate from apatite |
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1989
- 1989-02-17 SU SU894702987A patent/SU1636337A1/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство СССР № 872454, кл. С 01 F 17/00, 1978. * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994013845A1 (en) * | 1991-07-01 | 1994-06-23 | Sovmestnoe Rossiisko-Shvedskoe Predpriyatie 'horos' | Process for extracting rare-earth elements from phosphate ore |
RU2458863C1 (en) * | 2011-02-14 | 2012-08-20 | Открытое акционерное общество "Акрон" | Method of extracting rare-earth concentrate from apatite |
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