کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1695562 1519115 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Pollucite and feldspar formation in sintered bentonite for nuclear waste immobilization
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات ژئوشیمی و پترولوژی
پیش نمایش صفحه اول مقاله
Pollucite and feldspar formation in sintered bentonite for nuclear waste immobilization
چکیده انگلیسی

Future reprocessing of nuclear fuel may produce a waste stream consisting of alkali and alkaline earth fission products that can be converted into stable aluminosilicate minerals after sintering in bentonite. Precise knowledge of the mineral composition of the host phases is required for ultimate disposal. As determined by several analytical techniques, stable pollucite and celsian phases formed after sintering of bentonite and a simulated waste at 1200 °C. This relatively low temperature was likely a result of several impurities in the bentonite and simulated waste stream. While most of the waste metal ions were enriched in the crystalline phases, trace amounts remained in a silica-rich glassy region with other impurities.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volume 50, Issue 4, December 2010, Pages 594–599
نویسندگان
, , ,