Reactions of metakaolinite with NaOH and colloidal silica — Comparison of different samples (part 2)

Autor:	Isaak Lapides, L. Heller-Kallai
Rok vydání:	2007
Předmět:	chemistry.chemical_compound chemistry Geochemistry and Petrology Silica gel Colloidal silica Inorganic chemistry Kaolinite Geology Zeolite Clay minerals Silicate
Zdroj:	Applied Clay Science. 35:94-98
ISSN:	0169-1317
DOI:	10.1016/j.clay.2006.06.007
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a8c2d15ad068202561612a756f407ed8 https://doi.org/10.1016/j.clay.2006.06.007 Zobrazit plný text záznamu Full Text from ScienceDirect