کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1696673 | 1519137 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reactions of metakaolinite with NaOH and colloidal silica — Comparison of different samples (part 2)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
ژئوشیمی و پترولوژی
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چکیده انگلیسی
The eight metakaolinites studied in Part 1 were reacted hydrothermally with NaOH and silica gel. After induction periods that were much longer than in the absence of additional silica the main products formed were zeolite A and X in different proportions, associated with minor amounts of zeolite P. The ratio of zeolite X to A formed after 120 h was greater in samples with longer induction periods. In samples with shorter induction periods crystals of zeolite X coated crystals of zeolite A, evidently shielding them from further reaction. No correlation could be established between any observed feature of the starting kaolinite and the product assemblages.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Clay Science - Volume 35, Issues 1–2, January 2007, Pages 94–98
Journal: Applied Clay Science - Volume 35, Issues 1–2, January 2007, Pages 94–98
نویسندگان
I. Lapides, L. Heller-Kallai,