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RU2002111428A - The method of obtaining sodium hexafluoroscandiate - Google Patents

The method of obtaining sodium hexafluoroscandiate

Info

Publication number
RU2002111428A
RU2002111428A RU2002111428/15A RU2002111428A RU2002111428A RU 2002111428 A RU2002111428 A RU 2002111428A RU 2002111428/15 A RU2002111428/15 A RU 2002111428/15A RU 2002111428 A RU2002111428 A RU 2002111428A RU 2002111428 A RU2002111428 A RU 2002111428A
Authority
RU
Russia
Prior art keywords
sodium
scandium
hydrochloric
treated
hexafluoroscandiate
Prior art date
Application number
RU2002111428/15A
Other languages
Russian (ru)
Other versions
RU2236375C2 (en
Inventor
Сергей Владимирович Кондратьев
Александр Васильевич Вальков
Original Assignee
ООО "Ромекс"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ООО "Ромекс" filed Critical ООО "Ромекс"
Priority to RU2002111428/15A priority Critical patent/RU2236375C2/en
Publication of RU2002111428A publication Critical patent/RU2002111428A/en
Application granted granted Critical
Publication of RU2236375C2 publication Critical patent/RU2236375C2/en

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Landscapes

  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Claims (1)

Способ получения гексафторскандиата натрия взаимодействием фторсодержащих соединений натрия и аммония с соединениями скандия, отличающийся тем, что, с целью повышения качества, упрощения и удешевления процесса, исходный карбонат скандия обрабатывают соляной или азотной кислотами до достижения рН 1-2, полученный раствор добавляют к нагретому до температуры 80-95°С раствору фторида натрия, в который предварительно вводят фторид аммония в соотношении (мол):фторид натрия:фторид аммония:скандий=3,1-3,2:3,0-3,1:1, выпавший осадок комплексной соли гексафторскандиата натрия отделяют фильтрацией, промывают ацетоном и сушат при температуре 100-150°С, маточный раствор от фильтрации обрабатывают соляной или азотной кислотами до соотношения (мол):ион фтора:ион водорода=1:0,9-1,0 и полученным раствором обрабатывают исходный карбонат скандия, отделяют и сбрасывают фильтрат, а осадок направляют в голову процесса на растворение в соляной или азотной кислотах.The method of producing sodium hexafluoroscandiate by the interaction of fluorine-containing sodium and ammonium compounds with scandium compounds, characterized in that, in order to improve the quality, simplify and reduce the cost of the process, the initial scandium carbonate is treated with hydrochloric or nitric acids to achieve a pH of 1-2, the resulting solution is added to temperature 80-95 ° C, a solution of sodium fluoride, which is pre-injected with ammonium fluoride in the ratio (mol): sodium fluoride: ammonium fluoride: scandium = 3.1-3.2: 3.0-3.1: 1, precipitated complex salt sodium aphthoscandiate is separated by filtration, washed with acetone and dried at a temperature of 100-150 ° C, the mother liquor from the filtration is treated with hydrochloric or nitric acids to the ratio (mol): fluorine ion: hydrogen ion = 1: 0.9-1.0 and the resulting solution the initial scandium carbonate is treated, the filtrate is separated and discarded, and the precipitate is sent to the head of the process for dissolution in hydrochloric or nitric acids.
RU2002111428/15A 2002-04-29 2002-04-29 Method for preparing sodium hexafluoroscandiate RU2236375C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002111428/15A RU2236375C2 (en) 2002-04-29 2002-04-29 Method for preparing sodium hexafluoroscandiate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002111428/15A RU2236375C2 (en) 2002-04-29 2002-04-29 Method for preparing sodium hexafluoroscandiate

Publications (2)

Publication Number Publication Date
RU2002111428A true RU2002111428A (en) 2004-01-27
RU2236375C2 RU2236375C2 (en) 2004-09-20

Family

ID=33432783

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002111428/15A RU2236375C2 (en) 2002-04-29 2002-04-29 Method for preparing sodium hexafluoroscandiate

Country Status (1)

Country Link
RU (1) RU2236375C2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2037548C1 (en) * 1992-05-20 1995-06-19 Юлия Васильевна Соколова Method to produce scandium fluoride product from solutions or pulps of complex salt composition
RU2040471C1 (en) * 1992-06-25 1995-07-25 Юлия Васильевна Соколова Method of preparing 99%-th scandium oxide from the fluoride concentrate
RU2083710C1 (en) * 1993-12-27 1997-07-10 Юлия Васильевна Соколова Method for production of fluoride scandium product

Also Published As

Publication number Publication date
RU2236375C2 (en) 2004-09-20

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20090430