DE1294929B - Process for separating strontium or cesium ions from aqueous solution, in particular from radioactive waste water - Google Patents
Process for separating strontium or cesium ions from aqueous solution, in particular from radioactive waste waterInfo
- Publication number
- DE1294929B DE1294929B DES90031A DES0090031A DE1294929B DE 1294929 B DE1294929 B DE 1294929B DE S90031 A DES90031 A DE S90031A DE S0090031 A DES0090031 A DE S0090031A DE 1294929 B DE1294929 B DE 1294929B
- Authority
- DE
- Germany
- Prior art keywords
- aqueous solution
- adsorbent
- strontium
- radioactive waste
- cesium ions
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 229910052792 caesium Inorganic materials 0.000 title claims description 13
- 239000007864 aqueous solution Substances 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 9
- 229910052712 strontium Inorganic materials 0.000 title claims description 8
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 title claims description 8
- -1 cesium ions Chemical class 0.000 title claims description 7
- 239000002354 radioactive wastewater Substances 0.000 title claims description 3
- 239000007787 solid Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 11
- 239000003463 adsorbent Substances 0.000 claims description 7
- 238000001246 colloidal dispersion Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 229910021536 Zeolite Inorganic materials 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 239000003960 organic solvent Substances 0.000 claims description 3
- 229910001427 strontium ion Inorganic materials 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims description 2
- 230000003311 flocculating effect Effects 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 238000000622 liquid--liquid extraction Methods 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 238000000638 solvent extraction Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- JBIROUFYLSSYDX-UHFFFAOYSA-M benzododecinium chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CC1=CC=CC=C1 JBIROUFYLSSYDX-UHFFFAOYSA-M 0.000 claims 1
- 229910017052 cobalt Inorganic materials 0.000 claims 1
- 239000010941 cobalt Substances 0.000 claims 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims 1
- 239000000243 solution Substances 0.000 description 11
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 8
- 239000006185 dispersion Substances 0.000 description 4
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 3
- LQZZUXJYWNFBMV-UHFFFAOYSA-N dodecan-1-ol Chemical compound CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000002901 radioactive waste Substances 0.000 description 2
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 description 1
- YIKWKLYQRFRGPM-UHFFFAOYSA-N 1-dodecylguanidine acetate Chemical compound CC(O)=O.CCCCCCCCCCCCN=C(N)N YIKWKLYQRFRGPM-UHFFFAOYSA-N 0.000 description 1
- YIWUKEYIRIRTPP-UHFFFAOYSA-N 2-ethylhexan-1-ol Chemical group CCCCC(CC)CO YIWUKEYIRIRTPP-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 239000005766 Dodine Substances 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229960000541 cetyl alcohol Drugs 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000276 potassium ferrocyanide Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- XOGGUFAVLNCTRS-UHFFFAOYSA-N tetrapotassium;iron(2+);hexacyanide Chemical compound [K+].[K+].[K+].[K+].[Fe+2].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] XOGGUFAVLNCTRS-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/04—Solvent extraction of solutions which are liquid
- B01D11/0492—Applications, solvents used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/38—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups B01D15/265 - B01D15/36
- B01D15/3861—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving specific interaction not covered by one or more of groups B01D15/265 - B01D15/36 using an external stimulus
- B01D15/3885—Using electrical or magnetic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
-
- 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
- G21F9/007—Recovery of isotopes from radioactive waste, e.g. fission products
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/006—Radioactive compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Description
1 21 2
Die Erfindung bezieht sich auf ein Verfahren zum gemischtes Ferrocyanid mit den Kationen Eisen, Ko-Abtrennen
von Strontium- oder Caesiumionen aus bait, Nickel, Zink sowie Natrium, Kalium, Ammowäßriger
Lösung, insbesondere aus radioaktivem Ab- nium und für die Abtrennung von Strontiumionen ein
wasser, durch selektive Adsorption an einem in der synthetischer Zeolith verwendet,
wäßrigen Lösung unlöslichen Feststoff und Abtren- 5 Als organische Lösungsmittel, die nicht mit Wasser
nen des beladenen Feststoffes von der wäßrigen mischbar sind, eignen sich Chloroform, Tetrachlor-Lösung,
kohlenstoff, Trichloräthylen, Dichloräthan, n-Octyl-The invention relates to a method for mixed ferrocyanide with the cations iron, co-separation of strontium or cesium ions from bait, nickel, zinc and sodium, potassium, ammonium solution, in particular from radioactive waste, and for the separation of strontium ions water, by selective adsorption on one used in the synthetic zeolite,
Aqueous solution of insoluble solids and separating 5 As organic solvents that are not miscible with water from the loaded solid from the aqueous, chloroform, tetrachloro solution, carbon, trichlorethylene, dichloroethane, n-octyl are suitable
Für die Abtrennung von Stoffen, die in nur ziem- alkohol, 2-Äthylhexylalkohol, Amylalkohol, Methyllich
geringer Konzentration in großen Flüssigkeits- isobutylketon, Benzin, Toluol, Xylol, Heptan, Dodemengen
zusammen mit anderen gelösten Stoffen vor- io can, in denen Cetylalkohol, Laurylalkohol, Oleylliegen,
ist ein möglichst wirksam und selektiv arbei- alkohol, Oleinsäure gelöst sein können,
tendes Trennverfahren erforderlich. Eine solche Das erfindungsgemäße Verfahren eignet sich beTrennung ist beispielsweise bei radioaktiven Ab- sonders gut für eine kontinuierliche Durchführung,
wässern hinsichtlich besonders schädlicher Substan- was wiederum eine Verkleinerung der notwendigen
zen wie Caesium oder Strontium vorzunehmen, bevor 15 Vorrichtungen ermöglicht und das Nebeneinandersolche
Abwässer in den öffentlichen Bereich abge- stellen von mehreren aufeinanderfolgenden Extrakgeben
werden können. tionsstufen, wenn sich dies als notwendig erweisenFor the separation of substances that are only present in fairly alcohol, 2-ethylhexyl alcohol, amyl alcohol, low methyl concentration in large liquids - isobutyl ketone, gasoline, toluene, xylene, heptane, quantities of dodine together with other dissolved substances in which cetyl alcohol , Lauryl alcohol, oleyl lying, is an effective and selective work- alcohol, oleic acid can be dissolved,
ting separation process required. The method according to the invention is suitable for separation, for example, in the case of radioactive waste, for continuous watering with regard to particularly harmful substances, which in turn reduces the size of the necessary zen such as cesium or strontium before 15 devices are enabled and the juxtaposition of such wastewater in the public area can be given by several successive Extrak. steps if this proves necessary
Als besonders wirksam und selektiv ist die Aus- sollte. Der Verbrauch an Reaktionsteilnehmern ist imIt should be particularly effective and selective. The consumption of respondents is in
fällung oder Mitfällung bekannt, wie etwa die BiI- Gegensatz zu den herkömmlichen Verfahren, beiPrecipitation or coprecipitation known, such as the BiI- in contrast to the conventional processes
dung von Phosphorwolframat- oder Silicomolybdat- 20 denen das zu behandelnde Flüssigkeitsvolumen eineFormation of phosphotungstate or silicon molybdate 20 which is the volume of liquid to be treated
niederschlagen für die Abtrennung von Caesium oder entscheidende Rolle spielt, besser an die abzutren-precipitate for the separation of cesium or plays a decisive role in better separating
die Anlagerung an feste Stoffe durch Ionenaustausch, nende Caesium-Menge angepaßt, was im Fall einerthe accumulation of solids by ion exchange, nende amount of cesium adjusted, which in the case of a
Einbau oder adsorbtive Vorgänge, wie die Aufnahme Behandlung von radioaktiven Abwässern zum AnfallIncorporation or adsorbtive processes, such as the uptake treatment of radioactive waste water to the seizure
von Caesium durch feste Ferrocyanide von Neben- von bedeutend geringeren Mengen an zu lagerndenof cesium through solid ferrocyanides of secondary to significantly smaller quantities to be stored
gruppenelementen oder von Strontium durch synthe- 25 festen Abfallprodukten führt,group elements or strontium through synthetic 25 waste products,
tische Zeolithe oder Sulfatniederschläge. Es folgen Beispiele zur Erläuterung der Erfindung.table zeolites or sulphate precipitates. The following are examples to illustrate the invention.
Die mit den abzutrennenden Ionen beladenen R . -I1
Feststoffe müssen dann durch Filtrieren von der Beispiel 1
Hauptflüssigkeitsmenge abgetrennt werden, was im Es wird eine kolloidale Dispersion von Kaliumallgemeinen sehr lästig ist, insbesondere wenn man 30 kupferferrocyanid durch Mischen gleicher Volumina
von möglichst feinverteilten Feststoffen mit großer einer wäßrigen 3 · 10~3 m Kupfersulfatlösung und
Oberfläche ausgeht, die für die Fixierung des abzu- einer wäßrigen 2 · 10~3 m Kaliumferrocyanidlösung
trennenden Materials besonders wirksam sind. hergestellt. Zu 500 Teilen dieser Dispersion werden
Außerdem gestatten Anlagerung an Feststoffe und 40 Teile einer 5·10~3 m Laurylbenzyldimethylamnachfolgende
Abtrennung des beladenen festen 35 moniumchloridlösung zugesetzt. Das Kolloid flockt
Materials von der behandelten Flüssigkeit durch FiI- aus. Das Ausgeflockte wird in 10 Teilen Dodecan extrieren
keine kontinuierliche Durchführung des Ver- trahiert und dispergiert, dem 0,15 Teile Laurylalkohol
fahrens. zugesetzt sind. Die erhaltene kolloidale Dispersion The R charged with the ions to be separated off. -I 1
Solids must then be filtered off from Example 1
A colloidal dispersion of potassium is generally very troublesome, especially if one starts with 30 copper ferrocyanide by mixing equal volumes of as finely divided solids as possible with a large aqueous 3 × 10 -3 m copper sulfate solution and surface area, which is necessary for the fixation of the an aqueous 2 · 10 -3 m potassium ferrocyanide solution separating material are particularly effective. manufactured. In addition, allow addition to solids and 40 parts of a 5 × 10 -3 m laurylbenzyldimethylam following separation of the laden solid monium chloride solution are added to 500 parts of this dispersion. The colloid flocculates material from the treated liquid through fiI-. The flocculated material is extracted in 10 parts of dodecane, which is not carried out continuously, as the 0.15 part of lauryl alcohol is used. are added. The colloidal dispersion obtained
Ziel der Erfindung ist daher ein Verfahren zur wird in einer bekannten ExtraktionsvorrichtungThe aim of the invention is therefore a method for being used in a known extraction device
selektiven Abtrennung störender oder besonders inter- 40 (Misch- und Dekantiervorrichtung) mit 10 Teilenselective separation of disruptive or particularly inter- 40 (mixing and decanting device) with 10 parts
essierender Bestandteile wie Strontium- oder Caesi- . einer wäßrigen 10~2molaren CsNO3-Lösung miteating components such as strontium or cesi. an aqueous 10 ~ 2 molar CsNO 3 solution with
umionen aus wäßriger Lösung, bei dem die Wirksam- 0,26molarer HNO3 und Ba(NO3)2 (9 g Ba/1) in Kon-umions from aqueous solution, in which the effective 0.26 molar HNO 3 and Ba (NO 3 ) 2 (9 g Ba / 1) in con-
keit und Selektivität der Fixierung innerhalb eines takt gebracht. Das Caesium geht zu 99,96% in dieFixation speed and selectivity brought within one cycle. 99.96% of the cesium goes into the
Feststoffes gewahrt, gleichzeitig aber eine Entfernung organische Phase über, und es bleiben nur 0,04% derSolids preserved, but at the same time a removal of organic phase, and only 0.04% of the remain
des beladenen Feststoffes aus der Flüssigkeitsmasse 45 Ausgangsmenge in der wäßrigen Phase,of the loaded solid from the liquid mass 45 starting amount in the aqueous phase,
möglich wird, ohne daß filtriert werden muß. R . . . _becomes possible without having to be filtered. R. . . _
Dieses Ziel wird gemäß der Erfindung dadurch Beispiel l
erreicht, daß eine durch Ausflocken einer wäßrigen Es wird eine kolloidale Dispersion von Kaliumkolloidalen Dispersion des Adsorptionsmittels unter kupferferrocyanid durch Mischen von 30 Teilen einer
Zugabe eines oberflächenaktiven Mittels und Über- 50 wäßrigen 10~2molaren Kupfersulfatlösung mit
führen des Ausgeflockten in ein organisches, mit der 200 Teilen einer 10~3molaren wäßrigen Kaliumferrowäßrigen
Lösung nicht mischbares Lösungsmittel er- cyanidlösung hergestellt. Zu 50 Teilen der Dispersion
haltene kolloidale Dispersion des Adsorptionsmittels werden 4 Teile einer wäßrigen 5 · 10~3molaren Cenach
Art einer Flüssig-FIüssig-Extraktion mit der zu quartyllösung zugegeben. Das Kolloid flockt aus. Das
behandelnden wäßrigen Lösung in Berührung ge- 55 Ausgeflockte wird in 50 Teilen Methylisobutylketon
bracht wird. extrahiert und dispergiert. Diese kolloidale organische Die Erfindung basiert auf der Feststellung, daß Dispersion wird dazu verwendet, Caesium aus 50 Teiman
feinverteilte, in Wasser nicht lösliche Feststoffe len einer 1,5 · 10~6molaren wäßrigen Caesiumnitratin
gelöster oder feindispergierter Form in eine orga- lösung zu extrahieren. Nach der Extraktion befindet
nische Phase überführen kann, sowie darauf, daß 60 sich das Caesium zu 99,6 % in der organischen Phase
man auch einen bereits in die organische Phase über- und lediglich zu 0,4% in der wäßrigen Phase,
geführten Feststoff noch gut für die selektive Ab- „ . . .
trennung von Caesium- oder Strontiumionen aus Beispiel
einer wäßrigen Lösung verwenden kann. 0,5 g eines synthetischen Zeoliths werden in
Als Oberflächenaktives Mittel zum Ausflocken des 65 100 cm3 Wasser dispergiert. Danach werden 10 cm8
Adsorptionsmittels dient vorzugsweise Laurylbenzyl- einer 5 · 10~3molaren Lösung von Laurylbenzyldimedimethylammoniumchlorid
(Cequartyl), und für die thylammoniumchlorid zugegeben. Der Zeolith wird Abtrennung von Caesiumionen wird bevorzugt ein extrahiert und in 20 cm3 Dodecan mit einem ZusatzThis object is achieved according to the invention by example l
achieved that a by flocculating an aqueous It is a colloidal dispersion of Kaliumkolloidalen dispersion of the adsorbent with copper ferrocyanide by mixing 30 parts of an addition of a surfactant and excess 50 aqueous 10 ~ 2 molar copper sulphate solution with lead the flocculated in an organic, with the 200 parts of a 10 -3 molar aqueous potassium ferro solution immiscible solvent prepared cyanide solution. To 50 parts of the colloidal dispersion of the adsorbent, 4 parts of an aqueous 5 × 10 -3 molar liquid-liquid extraction with the quartyl solution are added. The colloid flocculates. The treating aqueous solution is brought into contact with the flocculated material in 50 parts of methyl isobutyl ketone. extracted and dispersed. This colloidal organic The invention is based on the finding that dispersion is used, finely divided cesium from 50 Teiman, non-water soluble solids of a 1.5 · 10 -6 molar aqueous Caesiumnitratin len dissolved or finely dispersed form in an organic solvent to extract . After the extraction, niche phase can be transferred, as well as the fact that 99.6% of the cesium is in the organic phase, one is already in the organic phase and only 0.4% in the aqueous phase,
guided solid still good for the selective removal ". . .
separation of cesium or strontium ions from example
an aqueous solution can use. 0.5 g of a synthetic zeolite is dispersed in water as a surfactant to flocculate the 65-100 cm 3. Then 10 cm 8 adsorbent is used, preferably laurylbenzyl, a 5 · 10 -3 molar solution of laurylbenzyldimedimethylammonium chloride (Cequartyl), and added for the thylammonium chloride. The zeolite is separated from cesium ions is preferably extracted and in 20 cm 3 of dodecane with an additive
von 0,3 cms Laurylalkohol dispergiert. Die erhaltene Dispersion wird zur Extraktion von Strontium aus cm3 einer 10~3molaren wäßrigen Lösung von Strontiumnitrat verwendet. Nach der Extraktion verbleiben in der wäßrigen Phase nur 1 °/o des zu Anfang vorhandenen Strontiums.of 0.3 cm s of lauryl alcohol dispersed. The dispersion obtained is used to extract strontium from cm 3 of a 10 -3 molar aqueous solution of strontium nitrate. After the extraction, only 1% of the strontium initially present remains in the aqueous phase.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR928212A FR1375007A (en) | 1963-03-16 | 1963-03-16 | Advanced process for chemical separation of substances in solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1294929B true DE1294929B (en) | 1969-05-14 |
Family
ID=8799390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES90031A Pending DE1294929B (en) | 1963-03-16 | 1964-03-16 | Process for separating strontium or cesium ions from aqueous solution, in particular from radioactive waste water |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE645270A (en) |
| DE (1) | DE1294929B (en) |
| ES (1) | ES297668A1 (en) |
| FR (1) | FR1375007A (en) |
| GB (1) | GB1057933A (en) |
| LU (1) | LU45643A1 (en) |
| NL (1) | NL6402783A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8585903B2 (en) | 2007-02-14 | 2013-11-19 | Winner Water Services, Inc. | Water purification |
| WO2008100610A2 (en) * | 2007-02-14 | 2008-08-21 | Battelle Memorial Institute | Water purification |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1109657B (en) * | 1956-07-30 | 1961-06-29 | Atomic Energy Authority Uk | Process for the recovery of radioactive cesium from a solution of nuclear fission products in nitric acid |
-
1963
- 1963-03-16 FR FR928212A patent/FR1375007A/en not_active Expired
-
1964
- 1964-03-11 GB GB10312/64A patent/GB1057933A/en not_active Expired
- 1964-03-12 LU LU45643A patent/LU45643A1/xx unknown
- 1964-03-16 NL NL6402783A patent/NL6402783A/xx unknown
- 1964-03-16 DE DES90031A patent/DE1294929B/en active Pending
- 1964-03-16 BE BE645270A patent/BE645270A/xx unknown
- 1964-03-16 ES ES297668A patent/ES297668A1/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1109657B (en) * | 1956-07-30 | 1961-06-29 | Atomic Energy Authority Uk | Process for the recovery of radioactive cesium from a solution of nuclear fission products in nitric acid |
Also Published As
| Publication number | Publication date |
|---|---|
| BE645270A (en) | 1964-07-16 |
| FR1375007A (en) | 1964-10-16 |
| GB1057933A (en) | 1967-02-08 |
| LU45643A1 (en) | 1964-05-12 |
| NL6402783A (en) | 1964-09-17 |
| ES297668A1 (en) | 1964-12-01 |
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