Published June 2008 | Version v1
Journal article Metadata-only

Effect of ionic liquids on the extraction of rare-earth elements by bidentate neutral organophosphorus compounds from chloride solutions

Creators

  • 1. RAN, Inst. Fiziki Tverdogo Tela, Chernogolovka (Russian Federation)
  • 2. RAN, Inst. Problem Tekhnologii Mikroehlektroniki i Osobo Chistykh Materialov, Chernogolovka (Russian Federation)
  • 3. RAN, Inst. Fiziologicheski Aktivnykh Veshchestv, Chernogolovka (Russian Federation)

Description

The partition of microamounts of rare earth chlorides (RE = La, Ce, Pr, Nd, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y) between aqueous HCl and organic solutions of tetraphenylmethylenediphosphine dioxide, diphenyl(diethylcarbamoylmethyl)phosphine oxide, and dibutyl(diethylcarbamoylmethyl)phosphine oxide was studied in the presence of ionic liquids: 1-butyl-3-methylimidazolium hexafluorophosphate and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide. The stoichiometry of extracted complexes was determined. The effect of the aqueous HCl concentration, the nature of the extractant, and the organic diluent on the efficiency of rare earth extraction was studied

Abstract (Russian)

Изучено межфазное распределение микроколичеств хлоридов La, Се, Pr, Nd, Eu, Gd, Tb, Dy, Но, Er, Tm, Yb, Lu и Y между водными растворами НСl и растворами диоксида тетрафенилметилендифосфина, оксидов дифен (диэтилкарбамоилметил)фосфина и дибутил(диэтилкарбамоилметил)фосфина в органических растворителях в присутствии ионных жидкостей - гексафторфосфата 1-бутил-3-метилимидазолия и бис(трифторметилсульфонил)имида 1-бутил-3-метилимидазолия. Определена стехиометрия экстрагируемых комплексов, рассмотрено влияние концентрации НСl в водной фазе, природы экстрагента и органического разбавителя на эффективность экстракции РЗЭ

Additional details

Additional titles

Original title (Russian)
Влияние ионных жидкостей на экстракцию редкоземельных элементов из хлоридных растворов бидентатными нейтральными фосфорорганическими соединениями

Publishing Information

Journal Title
Zhurnal Neorganicheskoj Khimii
Journal Volume
53
Journal Issue
6
Journal Page Range
p. 1045-1050
ISSN
0044-457X
CODEN
ZNOKAQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
40088837
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ADDITIVES; AQUEOUS SOLUTIONS; CHLORIDES; CONCENTRATION RATIO; COORDINATION VALENCES; DISTRIBUTION FUNCTIONS; FLUORIDES; HYDROCHLORIC ACID; IMIDAZOLES; PHOSPHINE OXIDES; PHOSPHORUS COMPLEXES; RARE EARTH COMPLEXES; TRACE AMOUNTS; YTTRIUM COMPLEXES
Descriptors DEC
AZOLES; CHLORINE COMPOUNDS; COMPLEXES; DIMENSIONLESS NUMBERS; DISPERSIONS; FLUORINE COMPOUNDS; FUNCTIONS; HALIDES; HALOGEN COMPOUNDS; HETEROCYCLIC COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; MIXTURES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHINES; PHOSPHORUS COMPOUNDS; SOLUTIONS; TRANSITION ELEMENT COMPLEXES; VALENCE

Optional Information

Notes
25 refs., 7 figs., 1 tab.