A study on the hydrothermal synthesis of analcime from pyrophyllite in Hsiang-Yang Sericite Ore

• Main Authors: Yu-Mei Liu, 劉玉梅
• Other Authors: D.Ray
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/76509428180393248615

碩士 === 國立成功大學 === 資源工程學系碩博士班 === 94 === In this study, the mica powders produced by Sunshine Mineral Company was used as the starting material. The content of sericite is about 57 % (muscovite and paragonite) with the other major mineral pyrophyllite and very small amount of chlorite. Hydrothermal reactions was used to synthesize analcime. The primary mineralizers used were Na2SiO3, NaOH, Na2CO3, NaCl, while NaF, NaCl, NaOH, Na2CO3, Na3PO4 as minor mineralizers. Reaction temperatures were between 150oC~240 oC. The reaction conditions, i.e. type and concentration of mineralizers, solid/liquid ratio, reaction temperature and time were investigated to find their effects on the phase and morphology of analcime produced, so as to establish the primary synthesis conditions.