Extraction and separation of some naturally occurring radionuclides from rare earth elements by different amines
المؤلفون المشاركون
al-Sayyid, G. O.
Borai, E. H.
Shahir al-Din, A. M.
al-Sufyani, E. A.
Saqr, A. A.
المصدر
Arab Journal of Nuclear Sciences and Applications
العدد
المجلد 47، العدد 3 (30 يونيو/حزيران 2014)، ص ص. 48-60، 13ص.
الناشر
الجمعية المصرية للعلوم النووية و تطبيقاتها
تاريخ النشر
2014-06-30
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
Uranium (U), thorium (Th) and rare earth elements (REEs) are important elements not only in environmental concern but also in industrial applications.
In this endeavor, new extraction and separation procedure for U and Th from REEs has been developed.
The parameters affecting U and Th extraction using different amines such as contact time, pH of the aqueous phase and metal ion concentration as well as amines concentration in the organic phase were investigated.
Comparison between the results of using three different amines (primary, secondary and tertiary amines) as organic extractants has been reported.
It was observed that the primary amine (Octylamine) is more effective for extraction of U, Th and REEs rather than the other two amines.
On the other hand, the secondary and tertiary amines are more selective for extraction of U and Th rather than REEs.
In a single element system, the extraction of U and Th are preferably with Octylamine.
The results indicated the possibility of extracting 90% of U by 0.1 mol/l Octylamine at pH 4 for 2 hrs at 25 oC, while Th extraction efficiency reached faster to 97% by 0.005 mol/l Octylamine after 15 min., at pH 3 and 25 oC.
In multielements system, the separation of U and Th from REEs was mainly carried out by tertiary amine.
It was found that, 80% of Th could be efficiently separated by 0.01M N,N-dimethyl aniline at pH 4 for 15 min., while 66% of U was then separated by 0.1M N,N-dimethylaniline at pH 7 for 30 min., leaving REEs in the aqueous solution.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Borai, E. H.& Shahir al-Din, A. M.& al-Sufyani, E. A.& Saqr, A. A.& al-Sayyid, G. O.. 2014. Extraction and separation of some naturally occurring radionuclides from rare earth elements by different amines. Arab Journal of Nuclear Sciences and Applications،Vol. 47, no. 3, pp.48-60.
https://search.emarefa.net/detail/BIM-724893
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Borai, E. H.…[et al.]. Extraction and separation of some naturally occurring radionuclides from rare earth elements by different amines. Arab Journal of Nuclear Sciences and Applications Vol. 47, no. 3 (Jun. 2014), pp.48-60.
https://search.emarefa.net/detail/BIM-724893
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Borai, E. H.& Shahir al-Din, A. M.& al-Sufyani, E. A.& Saqr, A. A.& al-Sayyid, G. O.. Extraction and separation of some naturally occurring radionuclides from rare earth elements by different amines. Arab Journal of Nuclear Sciences and Applications. 2014. Vol. 47, no. 3, pp.48-60.
https://search.emarefa.net/detail/BIM-724893
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 59-60
رقم السجل
BIM-724893
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر