بررسی استخراج و جداسازی توریم با استفاده از روش میکرواستخراج مایع-مایع پخشی

نوع مقاله : علمی-پژوهشی

نویسندگان

پژوهشکده چرخه سوخت هسته‌ای، پژوهشگاه علوم و فنون هسته‌ای، سازمان انرژی اتمی ایران، تهران، ایران

چکیده

در این پژوهش، یک روش ساده با عنوان میکرواستخراج مایع-مایع پخشی برای استخراج توریم توسعه داده شد. در این روش استخراجی، از استون به عنوان حلال پخش‌ کننده و از کلروبنزن به عنوان حلال استخراج‌ کننده استفاده شده است. استخراج و جداسازی توریم با استفاده از عامل شلاته کننده cyanex272 در محیط اسیدی انجام شد.  برخی از پارامترهای مؤثر بر استخراج توریم مانند نوع و حجم حلال‌های استخراج کننده و پخش کننده، غلظت لیگاند و نوع و غلظت اسید مورد مطالعه و بهینه‌سازی قرار گرفته است. در شرایط بهینه، گستره خطی خوبی در بازه  5000-1 میکروگرم در لیتر با ضریب همبستگی 997/0r2> دیده شد. حد تشخیص برابر 3/0 میکروگرم بر لیتر به دست آمد. تکرارپذیری برای 5 تکرار در سطح غلظتی 20 میکروگرم بر لیتر به صورت انحراف استاندارد نسبی برابر با %5/6 به دست آمد و راندمان استخراج %78 به دست آمد.

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مراجع

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نشریه شیمی و مهندسی شیمی ایران
دوره 41، شماره 1 - شماره پیاپی 103
اردیبهشت 1401
صفحه 275-283

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