استخراج و انتقال توریم (IV) با غشای درون پلی‌مری حاوی دی (2- اتیل هگزیل) فسفریک اسید به‌عنوان حامل

اعرابی, حمیدرضا; علمدارمیلانی, سعید; ابوالقاسمی, حسین

doi:10.24200/nst.2018.222

نوع مقاله : مقاله پژوهشی

نویسندگان

¹ دانشکده‌ی مهندسی شیمی، پردیس دانشکده‌های فنی دانشگاه تهران، تهران ـ ایران

² پژوهشکده‌ی مواد و سوخت هسته‌ای، پژوهشگاه علوم و فنون هسته‌ای، سازمان انرژی اتمی ایران

https://doi.org/10.24200/nst.2018.222

چکیده

استخراج و انتقال توریم (IV) از محلول‌های نیتراتی با استفاده از غشای درون پلی‌مری پلی‌وینیل کلرید / دی (2- اتیل‌هگزیل) فسفریک اسید (D₂EHPA/PVC) مورد بررسی قرار گرفت. اثر پارامترهای اصلی سیستم (یعنی، pH فاز دهنده، نوع و غلظت اسید در فاز پذیرنده، درصد D₂EHPA در غشا، غلظت اولیه‌ی توریم (IV) در فاز دهنده) بر روی فرایندهای استخراج و انتقال، به روش ناپیوسته بررسی شد. بیش‌ترین مقدار ضریب انتقال توریم با استفاده از غشای تشکیل شده از %45 وزنی D₂EHPA و %55 وزنی پی‌وی‌سی، محلول 112 میلی‌گرم بر لیتر توریم با 1.8 pH به عنوان فاز دهنده، محلول 3 مول بر لیتر سولفوریک اسید به عنوان فاز پذیرنده (محلول عریان‌ساز)، برابر با %94.81 به دست آمد.

کلیدواژه‌ها

20.1001.1.17351871.1397.39.3.6.5

عنوان مقاله [English]

Extraction and Transport of Thorium(IV) by Polymer Inclusion Membranes Incorporating Di-(2-ethylhexyl) Phosporic Acid as the Carrier Extractant

نویسندگان [English]

H. R Arabi ¹
S A. Milani ²
H Abolghasemi ¹

¹ Chemical Engineering Department, Tehran University-Tehran- Iran

چکیده [English]

Extraction and transport of thorium (IV) from nitrate solutions was investigated using polymer inclusion membrane (PIM), based on di(-2-ethylhexyl) phosphoric acid (D₂EHPA) and poly(vinyl chloride) (PVC). This study investigates the influence of the main system parameters (i.e., pH of donor phase, type and concentration of acid in acceptor phases, percentage of D₂EHPA in the membrane, initial Th(IV) concentration) on the extraction and transport process by means of batch method. The transport factor of Th(IV) as high as 94.81% were recorded using a membrane composed of 45% D₂EHPA, and 55% PVC (w/w) from a solution containing 112 mg L^-1 Th(IV) in 0.0158 mol L^-1 HNO₃ (pH 1.8) into a solution containing 3 mol L^-1 H₂SO₄.

کلیدواژه‌ها [English]

Extraction and Transport of Th(IV)
Polymer Inclusion Membrane (PIM)
D2EHPA
PVC

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مجله علوم و فنون هسته ای

استخراج و انتقال توریم (IV) با غشای درون پلی‌مری حاوی دی (2- اتیل هگزیل) فسفریک اسید به‌عنوان حامل

مراجع

مراجع

دوره 39، شماره 3 - شماره پیاپی 85
آذر 1397
صفحه 57-67

استخراج و انتقال توریم (IV) با غشای درون پلی‌مری حاوی دی (2- اتیل هگزیل) فسفریک اسید به‌عنوان حامل

مراجع

مراجع

دوره 39، شماره 3 - شماره پیاپی 85آذر 1397صفحه 57-67

دوره 39، شماره 3 - شماره پیاپی 85
آذر 1397
صفحه 57-67