RU2000113194A - HYBRID ORGANO-INORGANIC GELS FOR EXTRACTION OF CHEMICAL ELEMENTS, SUCH AS LANTANIDES AND ACTINIDES, AND METHODS FOR PRODUCING THESE GELS - Google Patents

HYBRID ORGANO-INORGANIC GELS FOR EXTRACTION OF CHEMICAL ELEMENTS, SUCH AS LANTANIDES AND ACTINIDES, AND METHODS FOR PRODUCING THESE GELS

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RU2000113194A
RU2000113194A RU2000113194/04A RU2000113194A RU2000113194A RU 2000113194 A RU2000113194 A RU 2000113194A RU 2000113194/04 A RU2000113194/04 A RU 2000113194/04A RU 2000113194 A RU2000113194 A RU 2000113194A RU 2000113194 A RU2000113194 A RU 2000113194A
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Prior art keywords
gel
organic
paragraphs
functional group
group
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RU2000113194/04A
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Russian (ru)
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RU2207190C2 (en
Inventor
Даниель Мейер
Оливье Конокар
Жоэль МОРО
ШИ МАН Мишель ВОНГ
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Коммиссариат А Л'Энержи Атомик
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Priority claimed from FR9713565A external-priority patent/FR2770153B1/en
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Claims (1)

1. Способ экстрагирования присутствующих в водных растворах ионов, относящихся к группе ионов актинидов и/или лантанидов, заключающийся в том, что водный раствор вводят в контакт с гибридным органо-неорганическим гелем, содержащим сетку из неорганических звеньев формулы:
Figure 00000001

где М обозначает Si, Ti, Zr или Аl, в которую интегрированы органические молекулы, образующие комплексы с экстрагируемыми ионами, причем каждая органическая молекула ковалентно связана с одним или несколькими атомами М сетки, и отделяют гель, связавший ионы.1. The method of extraction present in aqueous solutions of ions belonging to the group of ions of actinides and / or lanthanides, which consists in the fact that the aqueous solution is brought into contact with a hybrid organo-inorganic gel containing a network of inorganic units of the formula:
Figure 00000001

where M is Si, Ti, Zr or Al, into which organic molecules are integrated that form complexes with extractable ions, each organic molecule being covalently linked to one or more atoms of the M network, and the gel binding the ions is separated. 2. Способ по п. 1, в котором комплексообразующие органические молекулы содержат по меньшей мере одну функциональную группу из числа амино-, эфирной, гидроксильной, амидной, пиридиновой и бипиридиновой групп или любых других органических групп, включающих электронодонорный атом типа О, N или S. 2. The method according to p. 1, in which the complexing organic molecules contain at least one functional group from among amino, ether, hydroxyl, amide, pyridine and bipyridine groups or any other organic groups including an electron donor atom of type O, N or S . 3. Способ по п. 1 или 2, в котором комплексообразующие органические молекулы геля отвечают одной из следующих формул:
Figure 00000002

Figure 00000003

Figure 00000004

Figure 00000005

Figure 00000006

Figure 00000007

Figure 00000008

Figure 00000009

Figure 00000010

Figure 00000011

Figure 00000012

Figure 00000013

Figure 00000014

Figure 00000015

Figure 00000016

Figure 00000017

Figure 00000018

в которых (М) обозначает ковалентную связь молекулы с атомом М, представляющим собой Si, Ti, Zr и/или Аl в неорганических звеньях сетки.3. The method according to p. 1 or 2, in which the complexing organic gel molecules correspond to one of the following formulas:
Figure 00000002

Figure 00000003

Figure 00000004

Figure 00000005

Figure 00000006

Figure 00000007

Figure 00000008

Figure 00000009

Figure 00000010

Figure 00000011

Figure 00000012

Figure 00000013

Figure 00000014

Figure 00000015

Figure 00000016

Figure 00000017

Figure 00000018

in which (M) denotes a covalent bond of the molecule with the atom M, which is Si, Ti, Zr and / or Al in inorganic units of the network. 4. Способ по любому из пп. 1-3, в котором неорганическими звеньями являются звенья:
Figure 00000019

5. Способ по п. 4, в котором гель представляет собой гибридный силикагель, отвечающий одной из следующих формул:
Figure 00000020

Figure 00000021

Figure 00000022

Figure 00000023

Figure 00000024

Figure 00000025

Figure 00000026

Figure 00000027

Figure 00000028

Figure 00000029

Figure 00000030

Figure 00000031

Figure 00000032

Figure 00000033

Figure 00000034

6. Способ по любому из пп. 1-3, в котором гибридный гель получен по методике золь-гель, согласно которой полимеризация осуществляется путем поликонденсации в присутствии воды по меньшей мере одного алкоксида металла, имеющего функциональный заместитель (и), формулы:
LM(OR1)l (I) или (R1O)lMLM(OR1)l (II),
в которой М обозначает Si, Ti, Zr или Al;
L обозначает комплексообразующую органическую группу, отвечающую одной из следующих формул:
Figure 00000035

Figure 00000036

Figure 00000037

Figure 00000038

Figure 00000039

Figure 00000040

Figure 00000041

Figure 00000042

Figure 00000043

Figure 00000044

Figure 00000045

Figure 00000046

Figure 00000047

Figure 00000048

Figure 00000049

Figure 00000050

Figure 00000051

R1 обозначает органическую группу, преимущественно алкил;
l = 3, когда М обозначает Si, Ti, или Zr или l = 2, когда М обозначает Al.4. The method according to any one of paragraphs. 1-3, in which the inorganic links are links:
Figure 00000019

5. The method according to p. 4, in which the gel is a hybrid silica gel corresponding to one of the following formulas:
Figure 00000020

Figure 00000021

Figure 00000022

Figure 00000023

Figure 00000024

Figure 00000025

Figure 00000026

Figure 00000027

Figure 00000028

Figure 00000029

Figure 00000030

Figure 00000031

Figure 00000032

Figure 00000033

Figure 00000034

6. The method according to any one of paragraphs. 1-3, in which the hybrid gel is obtained by the sol-gel method, according to which the polymerization is carried out by polycondensation in the presence of water of at least one metal alkoxide having a functional substituent (s) of the formula:
LM (OR 1 ) l (I) or (R 1 O) lMLM (OR 1 ) l (II),
in which M represents Si, Ti, Zr or Al;
L denotes a complexing organic group corresponding to one of the following formulas:
Figure 00000035

Figure 00000036

Figure 00000037

Figure 00000038

Figure 00000039

Figure 00000040

Figure 00000041

Figure 00000042

Figure 00000043

Figure 00000044

Figure 00000045

Figure 00000046

Figure 00000047

Figure 00000048

Figure 00000049

Figure 00000050

Figure 00000051

R 1 is an organic group, preferably alkyl;
l = 3 when M is Si, Ti, or Zr, or l = 2 when M is Al. 7. Способ по п. 6, в котором алкоксид металла содержащий функциональную группу(ы), соответствует одной из следующих формул:
Figure 00000052

Figure 00000053

Figure 00000054

Figure 00000055

Figure 00000056

Figure 00000057

Figure 00000058

Figure 00000059

Figure 00000060

Figure 00000061

Figure 00000062

Figure 00000063

Figure 00000064

Figure 00000065

Figure 00000066

Figure 00000067

Figure 00000068

в которых R обозначает органическую, преимущественно алкильную группу.7. The method according to claim 6, in which the metal alkoxide containing the functional group (s) corresponds to one of the following formulas:
Figure 00000052

Figure 00000053

Figure 00000054

Figure 00000055

Figure 00000056

Figure 00000057

Figure 00000058

Figure 00000059

Figure 00000060

Figure 00000061

Figure 00000062

Figure 00000063

Figure 00000064

Figure 00000065

Figure 00000066

Figure 00000067

Figure 00000068

in which R denotes an organic, mainly alkyl group. 8. Способ по любому из пп. 6 и 7, в котором содержащий функциональную группу(ы) алкоксид металла полимеризован с алкоксидом металла формулы:
M(OR2)m (III)
в которой М обозначает Si, Ti, Zr или Al;
R2 обозначает органическую, преимущественно алкильную группу;
m = 4, когда М является Si, Ti или Zr, или m = 3, когда М обозначает Al.8. The method according to any one of paragraphs. 6 and 7, in which the metal alkoxide containing functional group (s) is polymerized with a metal alkoxide of the formula:
M (OR 2 ) m (III)
in which M represents Si, Ti, Zr or Al;
R 2 denotes an organic, mainly alkyl group;
m = 4 when M is Si, Ti or Zr, or m = 3 when M is Al. 9. Способ по п. 8, в котором М обозначает Si. 9. The method of claim 8, wherein M is Si. 10. Способ по любому из пп. 6-9, в котором алкоксид металла, содержащий функциональную группу(ы), полимеризован также с алкоксидом формулы
(R3O)lM-X-M(OR3)l (IV)
в которой М обозначает Si, Ti, Zr или Al;
R3 обозначает органическую, преимущественно алкильную группу;
Х обозначает не образующую комплекса органическую группу;
l= 3, когда М обозначает Si, Ti или Zr, или l= 2, когда М обозначает Аl.10. The method according to any one of paragraphs. 6-9, in which the metal alkoxide containing the functional group (s) is also polymerized with an alkoxide of the formula
(R 3 O) lM-XM (OR 3 ) l (IV)
in which M represents Si, Ti, Zr or Al;
R 3 denotes an organic, mainly alkyl group;
X is a non-complexing organic group;
l = 3 when M is Si, Ti or Zr, or l = 2 when M is Al. 11. Способ по любому из пп. 6-10, в котором полимеризация проведена в присутствии этанола, воды и фторида аммония. 11. The method according to any one of paragraphs. 6-10, in which the polymerization was carried out in the presence of ethanol, water and ammonium fluoride. 12. Способ по п. 7, в котором полимеризован только содержащий функциональную группу(ы) алкоксид кремния, отвечающий одной из формул
Figure 00000069

Figure 00000070

Figure 00000071

13. Способ по п. 7, в котором содержащий функциональную группу(ы) алкоксисилан полимеризован с 1-5 эквивалентами тетраэтоксисилана.12. The method according to p. 7, in which polymerized only containing a functional group (s) silicon alkoxide, corresponding to one of the formulas
Figure 00000069

Figure 00000070

Figure 00000071

13. The method of claim 7, wherein the alkoxysilane containing functional group (s) is polymerized with 1-5 equivalents of tetraethoxysilane. 14. Способ по любому из пп. 6-13, в котором полимеризация проведена в присутствии экстрагируемого элемента, который после этого удаляют промывкой, с целью придания гелю эффекта отпечатка этого элемента и улучшения селективности геля при экстракции подобных элементов. 14. The method according to any one of paragraphs. 6-13, in which the polymerization is carried out in the presence of an extractable element, which is then removed by washing, in order to give the gel an imprint effect of this element and improve the selectivity of the gel during the extraction of such elements. 15. Способ по любому из пп. 1-14, в котором гель имеет форму порошка. 15. The method according to any one of paragraphs. 1-14, in which the gel is in the form of a powder. 16. Способ по любому из пп. 1-14, в котором гель имеет форму мембраны. 16. The method according to any one of paragraphs. 1-14, in which the gel is in the form of a membrane. 17. Алкоксид кремния, содержащий функциональную группу(ы) одной из следующих формул:
Figure 00000072

Figure 00000073
17. Silicon alkoxide containing a functional group (s) of one of the following formulas:
Figure 00000072

Figure 00000073
RU2000113194/04A 1997-10-29 1998-10-28 Organomineral hybrid gels for extraction of minerals such as lanthanides and actinides and methods for preparing these gels RU2207190C2 (en)

Applications Claiming Priority (2)

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FR9713565 1997-10-29
FR9713565A FR2770153B1 (en) 1997-10-29 1997-10-29 INORGANIC-ORGANIC HYBRID GELS FOR THE EXTRACTION OF CHEMICAL SPECIES SUCH AS LANTHANIDES AND ACTINIDES, AND THEIR PREPARATION

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US (1) US6667016B1 (en)
JP (1) JP2001520932A (en)
KR (1) KR100531108B1 (en)
FR (1) FR2770153B1 (en)
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WO (1) WO1999021654A1 (en)

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