WO2003018194A1 - Materiau solide composite fixant des polluants mineraux, son procede de preparation et procede de fixation de polluants mineraux le mettant en oeuvre. - Google Patents
Materiau solide composite fixant des polluants mineraux, son procede de preparation et procede de fixation de polluants mineraux le mettant en oeuvre. Download PDFInfo
- Publication number
- WO2003018194A1 WO2003018194A1 PCT/FR2002/002905 FR0202905W WO03018194A1 WO 2003018194 A1 WO2003018194 A1 WO 2003018194A1 FR 0202905 W FR0202905 W FR 0202905W WO 03018194 A1 WO03018194 A1 WO 03018194A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polymer
- solution
- hexacyanoferrate
- support
- metal
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/12—Processing by absorption; by adsorption; by ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/08—Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/16—Organic material
- B01J39/17—Organic material containing also inorganic materials, e.g. inert material coated with an ion-exchange resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J45/00—Ion-exchange in which a complex or a chelate is formed; Use of material as complex or chelate forming ion-exchangers; Treatment of material for improving the complex or chelate forming ion-exchange properties
Definitions
- the hexacyanoferrate anion is adsorbed on the anion exchange polymer covering a solid support in the form of a film, by interactions of electrostatic type and, therefore, strongly adheres to the support.
- This bond involves adsorption phenomena in the pores as in the impregnated hexacyanoferrates.
- the deposition of hexacyanoferrate is carried out uniformly over the entire modified surface of the support. All the possible exchange sites for the polymer are exchanged, the composition and the properties of the material are perfectly controlled and reproducible, unlike the materials of the art prior to this document. There is no longer any residual hexacyanoferrate on the surface capable of being released and subsequently disrupting the fixing process.
- the distribution coefficient for cesium is high (Kd> 100,000) and comparable to that of hexacyanoferrates impregnated with quantities of hexacyanoferrate of 1 to 2% by mass relative to the mass of support. This is in particular the reason why it is possible to easily store the material of this document which is stable and essentially mineral.
- the anion exchange polymer composing the material of document FR-A-2 765 812 is very generally described as being an organic polymer provided with cationic groups. According to this document, the organic polymer is preferably chosen from polyvinylimidazoles, copolymers of vinylimidazole with at least one other monomer, polyethyleneimines, polyamines and any polymer carrying a cationic group.
- any anion exchange polymer is suitable, for these purposes, provided that a film or a film which is very adherent to the surface of the support is formed.
- crosslinking is not generally necessary.
- Cross-linking is in particular essential in order to obtain a stable film, adhering to the support, such as silica, with polymers, such as polyethyleneimines (PEI) and polyvinylimidazoles.
- this material must be chemically and mechanically stable in order to be able to be thus packaged in a column allowing continuous processing.
- the composite solid material fixing mineral pollutants can be easily stored and / or vitrified without risk by known methods.
- these specific polymers make it possible to solve the problems posed by materials of the prior art, in particular of document FR-A-2 765 812 and greatly improve the properties of the composite materials of the prior art.
- the materials according to the invention do not have the drawbacks, limitations, defects and disadvantages of the materials of the above-mentioned document and meet the criteria, requirements listed above.
- the specific polymer used according to the invention has excellent adhesion to the support, such as silica, without requiring any crosslinking.
- the mechanical stability of the material according to the invention has been found to be perfect on a column, after washing with pure water for several days, corresponding to more than 10,000 column volumes.
- the material according to the invention also has a contact surface which is of the same order of magnitude as the specific surface of the chosen support. Consequently, the reactivity of hexacyanoferrate is increased compared to the prior art.
- the distribution coefficient of the material according to the invention which is preferably from 10,000 to 100,000 for one gram of material is high and is comparable to that of solid hexacyanoferrates, but the quantities of hexacyanoferrates used are advantageously much lower than those of hexacyanoferrates impregnated on silica of the prior art.
- the support will thus be preferably chosen from mineral oxides such as silica, alumina, titanium oxide, zirconium oxide, diatomaceous earth, glasses, and zeolites; a preferred support is silica, readily available at a reasonable cost.
- the support can be in any form, for example in the form of particles such as grains, beads, spheres, in the form of fibers, or others or also in the form of a membrane, hollow tube, woven or nonwoven fabric, etc. ,
- the support is preferably a porous support to allow better fixation of the polymer.
- the average pore size of the support is variable, and is preferably 100 to 1000 ⁇ .
- this process using specific cationic polymers, is simple, uses known and proven processes, is reliable and perfectly reproducible, that is to say it allows the preparation of a final product. whose characteristics, composition and properties are perfectly determined, and do not undergo random variations.
- the first step of this process consists in impregnating a solid support with an organic polymer solution on said solid support.
- the solid support is one of those which have already been mentioned above, a preferred carrier is silica Lichrospher ® 100 from Merck ®, the polymer is also one of those mentioned above, the preferred polymer being a polybrene (PB), preferably a molecular weight polybrene 4,000 to 6,000 g / mol supplied by the company SIGMA ALDRICH ® .
- PB polybrene
- the impregnation is carried out by bringing the solid support into contact with the polymer solution for a sufficient time, which is surprisingly short according to the invention, for example 1 hour (instead of 24 to 48 hours with another polymer), whereby a uniform coating of polymer is obtained on the solid which isolates and protects the solid support, which matches the forms and the porosities thereof, and which retains its specific surface.
- This solution is preferably a solution in pure water, demineralized.
- the starting alkali metal hexacyanoferrate is preferably chosen from sodium or potassium hexacyanoferrates (II) and (III).
- the impregnation was not carried out at a defined, adjusted pH, controlled for example by a buffer. It is a solution in water, preferably pure, demineralized water.
- the purpose of the washing operation is to remove the alkali metal hexacyanoferrate salts which have not been fixed on the polymer and makes it possible to obtain a composite material fixing mineral pollutants in which there is no longer any free, unbound hexacyanoferrate which can be released.
- the next step is the addition of an aqueous solution of metal salt to the solid support coated with a film of an anion exchange polymer, to which the hexacyanoferrate anion is attached.
- This last washing step is carried out in the same manner and under the same conditions as the washing step already described above, using pure demineralized water.
- This washing operation makes it possible to remove the excess metal salt and to obtain a stable final product with a perfectly defined composition.
- the solutions which can be treated by the process of the invention and with the composite solid material fixing mineral pollutants according to the invention are very varied, and may even contain, for example, corrosive agents, acids, bases or others, due to the fact excellent chemical stability of the material according to the invention.
- the material according to the invention can be used in particular over a very wide pH range. For example, it would be possible to treat aqueous nitric solutions with a concentration ranging, for example, from 0.1 to 3M, acidic or neutral solutions up to a pH of 8, basic solutions, etc. It is however necessary to adapt the nature if necessary. from the solid support to the nature of the solution treated. It is for example known that silica does not generally resist a basic pH, and that it is then preferable to use a solid support for example made of Ti0 2 , the use of the composite material can then be extended for example up to at pH 12.
- the solution to be treated by the process of the invention is preferably an aqueous solution, which may, in addition to the pollutant (s) such as one or more cation (s) to be fixed, contain other salts in solution such as NaNo 3 or LiN0 3 or also Al (N0 3 ) 3 or any other soluble alkali or alkaline earth metal salt at a concentration of up to 2 moles / l.
- the solution may also contain, as indicated above, acids, bases, and even organic compounds.
- the material according to the invention thus has the advantage of being able to treat solutions which cannot be treated with organic resins.
- the anion exchange polymer is, in accordance with the invention, a polybrene (PB) having the following structure and characteristics: Molar mass 4,000 to
- a composite solid material is not prepared in accordance with the invention, that is to say according to the procedure of document FR-A-2 765 812.
- Kd greater than 10,000 for contact times of 24 h represents an excellent affinity of cesium for the solid phase.
- the solution is filtered, its radioactivity is measured by gamma spectrometry and is compared with that of the starting solution.
- the distribution coefficient 137 Cs representative of the affinity of the product by this element is defined by the ratio of the radioactivity fixed per gram of product to the residual radioactivity in solution per cm of solution.
- the distribution coefficient K of cesium is established according to equation (2): _ Activity of the blank - Activity of the solution * Volume of solution filtered (ml)
- Kd the higher the value of Kd, the more the Cs + is retained in the solid phase.
- Percolation of a radioactive solution, which is an "OSI" solution, as defined above, on the synthesized phases, whether or not according to the invention, packaged in the synthesis column, makes it possible to determine the affinity of cesium for this, by calculating the decontamination coefficient.
- the first filter is a frit which retains particles larger than 20 ⁇ m in size, the next filter with a lower porosity.
- a peristaltic pump placed in series draws at a flow rate of 3 mL / min. the solution to a stainless steel column (30 * 5 mm) containing 1 g of composite. This column is closed at each end by a frit and shielded over its entire height by a lead castle with a thickness of 5 cm.
- 50 L of eluate are collected in a vial of eluate for every 250 ml of treated solution.
- the entire assembly is placed in a retention tank with a volume of 10 mL.
- the radioactivity of the eluates, as well as of the control, is then measured by gamma spectrometry.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- High Energy & Nuclear Physics (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Basic Packing Technique (AREA)
- Removal Of Specific Substances (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
UA2004021275A UA76177C2 (en) | 2001-08-22 | 2002-08-20 | Composite solid material fixing mineral pollutants, method for preparing thereof and method of fixing mineral pollutants by means of said material |
JP2003522700A JP2005500159A (ja) | 2001-08-22 | 2002-08-20 | 無機汚染物質を固定する複合固体材料、その調製法およびそれを使用する無機汚染物質の固定方法 |
AT02774877T ATE289870T1 (de) | 2001-08-22 | 2002-08-20 | Fester verbundwerkstoff zum binden von mineralischen schadstoffen, verfahren zu dessen herstellung und verfahren zur bindung von mineralischen schadstoffen unter verwendung desselben |
US10/486,834 US20040178141A1 (en) | 2001-08-22 | 2002-08-20 | Composite solid material fixing mineral pollutants, method for preaparing same and method for fixing pollutants using same |
EA200400326A EA005640B1 (ru) | 2001-08-22 | 2002-08-20 | Композиционный твердый материал, фиксирующий неорганические загрязнения, способ получения материала и способ фиксации неорганических загрязнений с использованием этого материала |
DE60203126T DE60203126T8 (de) | 2001-08-22 | 2002-08-20 | Fester verbundwerkstoff zum binden von mineralischen schadstoffen, verfahren zu dessen herstellung und verfahren zur bindung von mineralischen schadstoffen unter verwendung desselben |
EP02774877A EP1423197B1 (fr) | 2001-08-22 | 2002-08-20 | Materiau solide composite fixant des polluants mineraux, son procede de preparation et procede de fixation de polluants mineraux le mettant en oeuvre. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0111004A FR2828818B1 (fr) | 2001-08-22 | 2001-08-22 | Materiau solide composite fixant des polluants mineraux, son procede de preparation et procede de fixation de polluants mineraux le mettant en oeuvre |
FR01/11004 | 2001-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003018194A1 true WO2003018194A1 (fr) | 2003-03-06 |
Family
ID=8866660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/002905 WO2003018194A1 (fr) | 2001-08-22 | 2002-08-20 | Materiau solide composite fixant des polluants mineraux, son procede de preparation et procede de fixation de polluants mineraux le mettant en oeuvre. |
Country Status (10)
Country | Link |
---|---|
US (1) | US20040178141A1 (fr) |
EP (1) | EP1423197B1 (fr) |
JP (1) | JP2005500159A (fr) |
AT (1) | ATE289870T1 (fr) |
DE (1) | DE60203126T8 (fr) |
EA (1) | EA005640B1 (fr) |
ES (1) | ES2238607T3 (fr) |
FR (1) | FR2828818B1 (fr) |
UA (1) | UA76177C2 (fr) |
WO (1) | WO2003018194A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103408125A (zh) * | 2013-08-20 | 2013-11-27 | 重庆大学 | 缓释型高铁酸钾水处理剂的制备方法 |
CN103489495A (zh) * | 2012-06-14 | 2014-01-01 | 中国辐射防护研究院 | 一种用于控制放射性气溶胶的固定剂及制备方法 |
WO2014049048A1 (fr) * | 2012-09-28 | 2014-04-03 | Commissariat à l'énergie atomique et aux énergies alternatives | Membrane supportee fonctionnalisee par des hexa- et octacyanometallates, son procede de preparation et procede de separation la mettant en oeuvre |
WO2016202869A1 (fr) * | 2015-06-17 | 2016-12-22 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Materiaux monolithiques inorganiques alveolaires echangeurs cationiques, leur procede de preparation, et procede de separation les mettant en œuvre |
CN107694522A (zh) * | 2017-10-16 | 2018-02-16 | 广州中国科学院工业技术研究院 | 含有有机硅季铵盐的纳米粒子及其制备方法和用途 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2859924B1 (fr) * | 2003-09-23 | 2006-02-03 | Commissariat Energie Atomique | Dispositif et procede de fixation de polluants mineraux |
JP4932054B1 (ja) * | 2011-04-28 | 2012-05-16 | 学校法人慈恵大学 | 放射性物質類除染システム、及び放射性物質類の除染方法、及び除染用磁性複合粒子 |
JP5858473B2 (ja) * | 2011-05-06 | 2016-02-10 | 国立研究開発法人産業技術総合研究所 | 金属錯体を含む複合体及びそれを用いた放射性セシウム吸着材 |
JP6156832B2 (ja) * | 2011-06-02 | 2017-07-05 | 株式会社 環境浄化研究所 | 放射性物質捕集材料の製造方法 |
EP2765580A4 (fr) * | 2011-08-19 | 2015-08-12 | Found Promotion Ind Science | Produit adsorbant le césium radioactif et procédé de production de celui-ci, et procédé de retrait de césium radioactif d'un environnement à l'aide dudit produit adsorbant |
JP6093942B2 (ja) * | 2011-12-28 | 2017-03-15 | 株式会社 環境浄化研究所 | 放射性液体の除染方法 |
JP5980599B2 (ja) * | 2012-07-09 | 2016-08-31 | ユニチカトレーディング株式会社 | セシウム吸着用繊維構造物およびその製造方法 |
JP5967435B2 (ja) * | 2012-09-27 | 2016-08-10 | 日本エクスラン工業株式会社 | フェロシアン化物複合ビニル系重合体および該重合体の作成ならびに該重合体を含有するセシウムイオン吸着材 |
JP6203534B2 (ja) * | 2013-05-16 | 2017-09-27 | ユニチカトレーディング株式会社 | セシウムイオン吸着用繊維構造物およびその製造方法 |
JP6211838B2 (ja) * | 2013-07-12 | 2017-10-11 | ユニチカトレーディング株式会社 | セシウムイオン吸着用水処理担体及びその製造方法 |
CN105013520B (zh) * | 2014-04-23 | 2017-09-26 | 中国科学院大连化学物理研究所 | MHCF/TiO2纳米复合催化剂及其制备和应用 |
SG11202112839PA (en) * | 2019-06-04 | 2021-12-30 | Membrion Inc | Ceramic anion exchange materials |
SG11202112837WA (en) | 2019-06-04 | 2021-12-30 | Membrion Inc | Ceramic cation exchange materials |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3345305A (en) * | 1963-11-08 | 1967-10-03 | Saint Gobain Techuiques Nouvel | Method of preparation of solution containing barium 137 |
GB1115258A (en) * | 1967-02-22 | 1968-05-29 | Saint Gobain Techn Nouvelles | Method of cesium removal |
DE4021046A1 (de) * | 1989-09-02 | 1991-03-07 | Noell Gmbh | Verfahren und anlage zur entfernung von radioaktivem caesium aus suspensionen, loesungen und aehnlichen fluessigkeiten |
EP0522856A1 (fr) * | 1991-07-11 | 1993-01-13 | BRADTEC Limited | Purification de solutions |
US5407889A (en) * | 1991-12-24 | 1995-04-18 | Compomet Cantec | Method of composite sorbents manufacturing |
FR2737426A1 (fr) * | 1995-08-03 | 1997-02-07 | Stmi Soc Tech Milieu Ionisant | Procede de preparation de ferrocyanures et ferricyanures de metaux impregnes sur un support |
US5601722A (en) * | 1994-05-18 | 1997-02-11 | Agency Of Industrial Science And Technology | Method for the preparation of an ion exchanger for cesium ions and method for the regeneration thereof |
FR2765812A1 (fr) * | 1997-07-09 | 1999-01-15 | Commissariat Energie Atomique | Materiau solide composite fixant des polluants mineraux a base d'hexacyanoferrates et de polymere en couche pelliculaire, son procede de preparation, et procede de fixation de polluants mineraux le mettant en oeuvre |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3749941B2 (ja) * | 1997-09-04 | 2006-03-01 | 独立行政法人産業技術総合研究所 | セシウム分離材の製造方法 |
FR2828819B1 (fr) * | 2001-08-22 | 2003-10-24 | Commissariat Energie Atomique | Procede de preparation d'un materiau solide composite a base d'hexacyanoferrates, et procede de fixation de polluants mineraux le mettant en oeuvre |
-
2001
- 2001-08-22 FR FR0111004A patent/FR2828818B1/fr not_active Expired - Fee Related
-
2002
- 2002-08-20 EP EP02774877A patent/EP1423197B1/fr not_active Expired - Lifetime
- 2002-08-20 AT AT02774877T patent/ATE289870T1/de not_active IP Right Cessation
- 2002-08-20 UA UA2004021275A patent/UA76177C2/uk unknown
- 2002-08-20 WO PCT/FR2002/002905 patent/WO2003018194A1/fr active IP Right Grant
- 2002-08-20 JP JP2003522700A patent/JP2005500159A/ja active Pending
- 2002-08-20 EA EA200400326A patent/EA005640B1/ru not_active IP Right Cessation
- 2002-08-20 ES ES02774877T patent/ES2238607T3/es not_active Expired - Lifetime
- 2002-08-20 DE DE60203126T patent/DE60203126T8/de not_active Expired - Fee Related
- 2002-08-20 US US10/486,834 patent/US20040178141A1/en not_active Abandoned
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3345305A (en) * | 1963-11-08 | 1967-10-03 | Saint Gobain Techuiques Nouvel | Method of preparation of solution containing barium 137 |
GB1115258A (en) * | 1967-02-22 | 1968-05-29 | Saint Gobain Techn Nouvelles | Method of cesium removal |
DE4021046A1 (de) * | 1989-09-02 | 1991-03-07 | Noell Gmbh | Verfahren und anlage zur entfernung von radioaktivem caesium aus suspensionen, loesungen und aehnlichen fluessigkeiten |
EP0522856A1 (fr) * | 1991-07-11 | 1993-01-13 | BRADTEC Limited | Purification de solutions |
US5407889A (en) * | 1991-12-24 | 1995-04-18 | Compomet Cantec | Method of composite sorbents manufacturing |
US5601722A (en) * | 1994-05-18 | 1997-02-11 | Agency Of Industrial Science And Technology | Method for the preparation of an ion exchanger for cesium ions and method for the regeneration thereof |
FR2737426A1 (fr) * | 1995-08-03 | 1997-02-07 | Stmi Soc Tech Milieu Ionisant | Procede de preparation de ferrocyanures et ferricyanures de metaux impregnes sur un support |
FR2765812A1 (fr) * | 1997-07-09 | 1999-01-15 | Commissariat Energie Atomique | Materiau solide composite fixant des polluants mineraux a base d'hexacyanoferrates et de polymere en couche pelliculaire, son procede de preparation, et procede de fixation de polluants mineraux le mettant en oeuvre |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103489495A (zh) * | 2012-06-14 | 2014-01-01 | 中国辐射防护研究院 | 一种用于控制放射性气溶胶的固定剂及制备方法 |
WO2014049048A1 (fr) * | 2012-09-28 | 2014-04-03 | Commissariat à l'énergie atomique et aux énergies alternatives | Membrane supportee fonctionnalisee par des hexa- et octacyanometallates, son procede de preparation et procede de separation la mettant en oeuvre |
FR2996149A1 (fr) * | 2012-09-28 | 2014-04-04 | Commissariat Energie Atomique | Membrane supportee fonctionalisee par des hexa- et octacyanometallates, son procede de preparation et procede de separation la mettant en oeuvre. |
RU2645989C2 (ru) * | 2012-09-28 | 2018-02-28 | Коммиссариат А Л'Энержи Атомик Э О Энержи Альтернатив | Мембрана на подложке, функционализованная гекса- и октацианометаллатами, способ ее получения и способ разделения с применением этой мембраны |
US10068676B2 (en) | 2012-09-28 | 2018-09-04 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Supported membrane functionalized with hexa- and octacyanometallates, process for the preparation thereof and separation process using same |
CN103408125A (zh) * | 2013-08-20 | 2013-11-27 | 重庆大学 | 缓释型高铁酸钾水处理剂的制备方法 |
WO2016202869A1 (fr) * | 2015-06-17 | 2016-12-22 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Materiaux monolithiques inorganiques alveolaires echangeurs cationiques, leur procede de preparation, et procede de separation les mettant en œuvre |
FR3037583A1 (fr) * | 2015-06-17 | 2016-12-23 | Commissariat Energie Atomique | Materiaux monolithiques inorganiques alveolaires echangeurs cationiques, leur procede de preparation, et procede de separation les mettant en œuvre. |
CN107694522A (zh) * | 2017-10-16 | 2018-02-16 | 广州中国科学院工业技术研究院 | 含有有机硅季铵盐的纳米粒子及其制备方法和用途 |
CN107694522B (zh) * | 2017-10-16 | 2021-03-26 | 广州中国科学院工业技术研究院 | 含有有机硅季铵盐的纳米粒子及其制备方法和用途 |
Also Published As
Publication number | Publication date |
---|---|
FR2828818B1 (fr) | 2003-12-05 |
DE60203126D1 (de) | 2005-04-07 |
ES2238607T3 (es) | 2005-09-01 |
ATE289870T1 (de) | 2005-03-15 |
EP1423197A1 (fr) | 2004-06-02 |
UA76177C2 (en) | 2006-07-17 |
JP2005500159A (ja) | 2005-01-06 |
EP1423197B1 (fr) | 2005-03-02 |
FR2828818A1 (fr) | 2003-02-28 |
DE60203126T2 (de) | 2006-01-26 |
DE60203126T8 (de) | 2006-04-27 |
EA005640B1 (ru) | 2005-04-28 |
EA200400326A1 (ru) | 2004-08-26 |
US20040178141A1 (en) | 2004-09-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0923412B1 (fr) | Materiau composite a base d'hexacyanoferrates et de polymeres, son procede de fabrication et son utilisation | |
EP1423197B1 (fr) | Materiau solide composite fixant des polluants mineraux, son procede de preparation et procede de fixation de polluants mineraux le mettant en oeuvre. | |
WO2003018193A1 (fr) | Procede de preparation d'un materiau solide composite a base d'hexacyanoferrates, et procede de fixation de polluants mineraux le mettant en oeuvre | |
EP2900357B1 (fr) | Membrane supportee fonctionnalisee par des hexa- et octacyanometallates, son procede de preparation et procede de separation la mettant en oeuvre | |
EP2433287B1 (fr) | Materiau solide nanocomposite a base d'hexa- et octacyanometallates, son procede de preparation et procede de fixation de polluants mineraux le mettant en uvre | |
EP3192078B1 (fr) | Procede de preparation d'un materiau solide nanocomposite a base d'hexa- et octacyanometallates de metaux alcalins | |
JPH1176807A (ja) | セシウム分離材の製造方法 | |
EP2451574B1 (fr) | Composite polymère pour extraire du césium de solutions de déchets nucléaires et/ou d'autres solutions de déchets inorganiques | |
EP3509738B1 (fr) | Procédé de préparation d'un matériau solide nanocomposite a base d'hexa- ou octacyanométallates de métaux alcalins | |
EP0275763B1 (fr) | Procédé d'extraction de cations et son application au traitement d'effluents aqueux | |
JP2000254446A (ja) | 銀を担持したヨウ素除去フィルタ及びヨウ素除去装置 | |
WO2017098098A1 (fr) | Support poreux revetu de multicouches de nanoparticules de differents cyanometallates de metaux de transition, methode de preparation et application au traitement d'une solution d'effluent | |
FR2859924A1 (fr) | Dispositif et procede de fixation de polluants mineraux | |
CN118022556A (zh) | 一种负载CuZn-C的PEI改性PVDF自清洁膜及其制备方法和应用 | |
JPH05309243A (ja) | 再生処理方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP UA US Kind code of ref document: A1 Designated state(s): JP UA |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LU MC NL PT SE SK TR Kind code of ref document: A1 Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI GB GR IE IT LU MC NL PT SE SK TR |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2002774877 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2003522700 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10486834 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200400326 Country of ref document: EA |
|
WWP | Wipo information: published in national office |
Ref document number: 2002774877 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2002774877 Country of ref document: EP |