Study of K-Feldspar and Lime Hydrothermal Reaction: Phase and Mechanism with Reaction Temperature and Increasing Ca/Si Ratio

doi:10.3390/min9010046

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院矿产资源研究重点实验室

	Study of K-Feldspar and Lime Hydrothermal Reaction: Phase and Mechanism with Reaction Temperature and Increasing Ca/Si Ratio
	Liu, Shanke 1,2; Han, Cheng 1,2; Liu, Jianming 1,2
刊名	MINERALS
	2019
卷号	9 期号:1 页码:17
关键词	K-feldspar tobermorite hydrogarnet hydrothermal reaction phase analysis
ISSN号	2075-163X
DOI	10.3390/min9010046
英文摘要	To elucidate the physicochemical properties of the artificial silicate composite material, K-feldspar and lime were reacted in mild hydrothermal conditions (different reaction temperatures and various K-feldspar /lime ratios). Formed phases were investigated using various techniques, such as X-ray powder diffraction, the Rietveld method, scanning electron microscopy (SEM), and inductively coupled plasma-optical emission spectrometry. The analysis revealed that tobermorite, grossular (hydrogarnet), alpha-dicalcium silicate hydrate (alpha-C2SH), amorphous calcium silicate hydrate, potassium carbonate, bntschliite, calcite, and calcium hydroxide formed with various conditions. Both the temperature and the Ca/Si molar ratio in the starting material greatly affected the formation of phases, especially the generation of tobermorite and alpha-C2SH. The substitution of H4O4 <--> SiO4 proceeded with the increase of the Ca /Si molar ratio rather than the reaction temperature and the reaction time. More hydrogen was incorporated in hydrogarnet through the substitution of H4O4 <--> SiO4 with the increase of the Ca/Si molar ratio in the starting material. Due to the properties of tobermorite as a cation exchanger and its potential applications in hazardous waste disposal, experimental parameters should be optimized to obtain better performance of the artificial silicate composite material from K-feldspar and lime hydrothermal reaction. The dissolution mechanism of K-feldspar was also discussed.
资助项目	Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences[KLMR2017-07] ; Projects in the National Science & Technology Pillar Program (China)[2006BAD10B04] ; Knowledge Innovation Project of Chinese Academy of Sciences ; Spark Program of China[2007EA173003]
WOS关键词	PH BUFFERING CAPACITY ; CAO-AL2O3-SIO2-H2O SYSTEM ; HYDROGARNET FORMATION ; POTASSIUM-FELDSPAR ; FLY-ASH ; TOBERMORITE ; KINETICS ; WASTE ; HYDROCERAMICS ; DECOMPOSITION
WOS研究方向	Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	MDPI
WOS记录号	WOS:000459736200046
资助机构	Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Spark Program of China ; Spark Program of China ; Spark Program of China ; Spark Program of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Spark Program of China ; Spark Program of China ; Spark Program of China ; Spark Program of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Spark Program of China ; Spark Program of China ; Spark Program of China ; Spark Program of China ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Key Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Projects in the National Science & Technology Pillar Program (China) ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Knowledge Innovation Project of Chinese Academy of Sciences ; Spark Program of China ; Spark Program of China ; Spark Program of China ; Spark Program of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/90699]
专题	地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者	Liu, Shanke
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shanke,Han, Cheng,Liu, Jianming. Study of K-Feldspar and Lime Hydrothermal Reaction: Phase and Mechanism with Reaction Temperature and Increasing Ca/Si Ratio[J]. MINERALS,2019,9(1):17.
APA	Liu, Shanke,Han, Cheng,&Liu, Jianming.(2019).Study of K-Feldspar and Lime Hydrothermal Reaction: Phase and Mechanism with Reaction Temperature and Increasing Ca/Si Ratio.MINERALS,9(1),17.
MLA	Liu, Shanke,et al."Study of K-Feldspar and Lime Hydrothermal Reaction: Phase and Mechanism with Reaction Temperature and Increasing Ca/Si Ratio".MINERALS 9.1(2019):17.