METHOD OF EXTRACTING SCANDIUM FROM CONCENTRATES OF RARE-EARTH ELEMENTS Russian patent published in 2017 - IPC C22B59/00 C22B3/38 

Abstract RU 2626206 C1

FIELD: chemistry.

SUBSTANCE: invention can be used in technology of selective extracting scandium from concentrates of rare-earth elements (REE). The method for extracting scandium from concentrate of rare-earth elements in the form of an aqueous solution comprises contacting an aqueous solution containing scandium nitrate, REE nitrates, lithium trichloroacetate with a concentration of 1.0-2.0 mol/l with an extractant for 3 minutes. As an extractant, a solution of benzo-15-crown-5 in chloroform is used, and the extraction process is carried out at pH of 3.0-5.0.

EFFECT: increasing the coefficients of metal separation and the possibility of carrying out a process of selective extracting scandium from neutral concentrated solutions of REE nitrates before conducting their group separation processes according to a standard process scheme.

2 cl, 4 ex

Similar patents RU2626206C1

Title Year Author Number
METHOD FOR SELECTIVE EXTRACTION OF SCANDIUM FROM RARE EARTH CONCENTRATES 2021
  • Kostikova Galina Valerevna
  • Fedoseev Aleksandr Mikhajlovich
  • Zhilov Valerij Ivanovich
RU2767924C1
METHOD OF CLEANING SCANDIUM FROM ZIRCONIUM, THORIUM AND IRON 2015
  • Tsivadze Aslan Jusupovich
  • Kostikova Galina Valerevna
  • Kutepova Olga Andreevna
  • Salnikova Elena Vjacheslavovna
RU2582404C1
METHOD OF EXTRACTING LANTHANIDES FROM APATITE CONCENTRATE 2010
  • Lokshin Ehfroim Pinkhusovich
  • Ivanenko Vladimir Ivanovich
  • Tareeva Ol'Ga Al'Bertovna
  • Kornejkov Roman Ivanovich
RU2430885C1
METHOD OF EXTRACTING LANTHANIDES FROM WET-PROCESS PHOSPHORIC ACID 2010
  • Lokshin Ehfroim Pinkhusovich
  • Tareeva Ol'Ga Al'Bertovna
RU2443630C1
METHOD FOR OBTAINING NANOSCALE OXIDES OF RARE EARTH ELEMENTS USING ACETAMIDE 2022
  • Savinkina Elena Vladimirovna
  • Karavaev Igor Aleksandrovich
  • Buzanov Grigorii Alekseevich
  • Retivov Vasilii Mikhailovich
  • Pastukhova Zhanna Iurevna
  • Bruk Lev Grigorevich
RU2784172C1
METHOD OF EXTRACTING RARE-EARTH ELEMENTS FROM WET-PROCESS PHOSPHORIC ACID 2013
  • Lokshin Ehfroim Pinkhusovich
  • Tareeva Ol'Ga Al'Bertovna
  • Kalinnikov Vladimir Trofimovich
RU2509169C1
METHOD OF MAGNESIUM ISOTOPE SEPARATION 0
  • Levkin Aleksandr Vasilevich
  • Tsivadze Aslan Yusupovich
  • Knyazev Dmitrij Anatolevich
  • Demin Sergej Vasilevich
  • Basmanov Vasilij Vladimirovich
  • Zhilov Valerij Ivanovich
SU1673179A1
METHOD OF EXTRACTING RARE-EARTH ELEMENTS FROM WET-PROCESS PHOSPHORIC ACID WHEN PROCESSING KHIBINY APATITE CONCENTRATES 2011
  • Glushchenko Jurij Grigor'Evich
  • Shestakov Sergej Vladimirovich
  • Nechaev Andrej Valer'Evich
  • Kozyrev Aleksandr Borisovich
  • Sibilev Aleksandr Sergeevich
  • Levin Boris Vladimirovich
RU2528692C2
METHOD OF SEPARATION OF SCANDIUM AND ASSOCIATE METALS 2017
  • Pasechnik Liliya Aleksandrovna
  • Skachkov Vladimir Mikhajlovich
  • Tyutyunnik Aleksandr Petrovich
  • Skryabneva Lidiya Mikhajlovna
  • Medyankina Irina Sergeevna
  • Sabirzyanov Nail Adelevich
  • Yatsenko Sergej Pavlovich
RU2658399C1
LUMINESCENT GLASS-CRYSTAL MATERIAL 2020
  • Sigaev Vladimir Nikolaevich
  • Naumov Andrej Sergeevich
  • Savinkov Vitalij Ivanovich
  • Lotarev Sergej Viktorovich
RU2756886C1

RU 2 626 206 C1

Authors

Kostikova Galina Valerevna

Krasnova Olga Gennadevna

Tsivadze Aslan Yusupovich

Zhilov Valerij Ivanovich

Dates

2017-07-24Published

2016-09-22Filed