Preparation of <sup>18</sup>F in a Nuclear Reactor

Bresesti, M.; Turco, A.; Ostidich, A.

doi:10.1524/ract.1963.2.2.49

Cited by 10 publications

(3 citation statements)

References 2 publications

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“…Various radiochemical procedures for 28 Mg from irradiated Mg-Li alloy are known which utilise precipitation [1], ion exchange and distillation [2][3][4].…”

Section: Mutz a Preparation Of 28 Mg In A Nuclear Reactormentioning

confidence: 99%

Preparation of ²⁸Mg in a Nuclear Reactor

Mibza

1970

Radiochimica Acta

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Band 13, Heft 2 1970MIRZA, Preparation of 28 Mg in a Nuclear Reactor 73 equilibrium was kept constant, as the percentages of formic and nitric acids were changed. These data indicate that for each [H]+ the distribution coefficient of Pu(IV) decreases with increase of formic acid concentration. On the other hand the increase of the total acidity increases the distribution coefficient for the pure nitric acid solutions, whereas it decreases those for the pure formic acid solutions. The general trend of these curves is similar to that found by CHESNE et al. for the variation of the plutonium distribution coefficient as a function of acetic acid concentrations in mixtures of HN0 3 -CH 3 C00H [3]. A comparison of the results obtained in the present investigation with those on other stripping systems [3], indicates that under similar conditions, oxalic, sulfuric and acetic acids are more effective in stripping plutonium than formic acid. From Fig. 2 it is clear that formic acid is effective in stripping plutonium only at very low [N0 :J ]~ values.This condition, however, can not be satisfied in actual reprocessing counter corrent runs, due to the presence of both free nitric acid and nitrate ions in the charged solvent. The data obtained in the present investigation, suggest that plutonium stripping is not due to the formation of formate complexes, but rather to the conversion of the TLA nitrate into formate. However, a confirmation of this mechanism requires further investigations. AcknowledgementThe experimental part of this work has been carried out at the Departement de Chimie, CEN, Fontenayaux-Roses. In this connection I would like to express my thanks to Mr. A. CHESNE for his keen interest in this work and for providing facilities. Summary 28Mg was produced by 26 Mg(t, p) 28 Mg reaction using tritons from "Li(n, t) 4 He reaction. A simple method is devised for the separation of 28 Mg activities from irradiated Mg-Li alloy, using l-phenyl-3-methyl-4-capryl-pyrazolone-5 in methylisobutylketone as an extracting agent. 80% 28 Mg with a decontamination factor of 1 χ 10 5 from Fe, Μη, Zn and Cd can be recovered in less than 30 min. Zusammenfassung 28Mg wurde mit Hilfe der 2e Mg(t, p) 28 Mg-Reaktion mittels Tritonen aus der e Li(n, t) 4 He-Reaktion hergestellt. Es wird ein einfaches Verfahren zur Abtrennung der 28 Mg-Aktivitäten von der bestrahlten Mg-Li-Legierung mit Hilfe von 1-Phenyl-3-methyl-4-caprylpyrazolon-5 in Methylisobutylketon als Extraktionsmittel entwickelt. 80% 28 Mg mit einem Dekontaminationsfaktor von 1 χ 10 5 lassen sich in einer knappen halben Stunde aus Fe, Mn, Zn und Cd zurückgewinnen. R6sum6On a prepare du 28 Mg par la reaction 2e Mg(t, p) !8 Mg ä l'aide de tritons obtenus per inaction e Li(n, t) 4 He. Une methode simple a 6te mise au point pour s6parer a8 Mg de l'alliage Mg-Li irradie. Elle utilise la l-phenyl-3-m£thyl-4-eaprylpyrazolone-5 en solution methylisobutylc£tone comme agent d'extraction. II est ainsi possible de r6cup6rer 80% du 2s Mg en moins de 30 min avec un facteur de decontamination...

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“…Various radiochemical procedures for 28 Mg from irradiated Mg-Li alloy are known which utilise precipitation [1], ion exchange and distillation [2][3][4].…”

Section: Mutz a Preparation Of 28 Mg In A Nuclear Reactormentioning

confidence: 99%

Preparation of ²⁸Mg in a Nuclear Reactor

Mibza

1970

Radiochimica Acta

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“…Die Identifikation der bestimmten Produkte des /5-Zerfalls wurde durch einen Vergleich mit den Polonium Verbindungen, die mittels Grignardreagens synthetisiert wurden, erreicht. Eine quantitative Auswertung der Chromatogramme wurde nach der Messung der Λ-Strahlung von 210 Different procedures for preparing carrier-free 32 P have been described previously by several authors [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Among these, BBESESTI, LANZ and DEL TUECO [15] dissolve the irradiated sulphur in hot toluene and adsorb 32 P on alumina.…”

Section: Résuméunclassified

Chemische Folgen des β-Zerfalls von ²¹⁰Bi in Triarylwismutdihalogeniden

Nefedov¹

1965

Radiochimica Acta

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“…MacTb pa6oT onucwBaioT o6^yHemie miTpaTa JIIITIIH [1,5,6,10]. BpeMH o6jiyHemiH Maiepiiana Miiuiemi -OT 20 MUII no 10 v, a ynejibnasi aKTiiBHOCTb npoflyKTa (npu IUIOTHOCTH noTOKa iiefiipoHOB nopTOKa 10 13 n c.u~2 ceK' 1 …”

mentioning

confidence: 99%