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Study of K-Feldspar and Lime Hydrothermal Reaction at 190 degrees C: Phase, Kinetics and Mechanism with Reaction Time
Liu, Shanke1,2; Han, Cheng1,2; Liu, Jianming1,2
2018-12-13
Source PublicationCHEMISTRYSELECT
ISSN2365-6549
Volume3Issue:46Pages:13010-13016
AbstractAn artificial silicate composite material prepared by the hydrothermal reaction of K-feldspar and lime, showed excellent performance in remediating the soil. To elucidate the physicochemical properties of the artificial silicate composite material, K-feldspar and lime were reacted in mild hydrothermal conditions (T=190 degrees C; P similar to 12.4 atm; t=0 similar to 36 h). The hydrothermal product was systematically investigated using various techniques such as X-ray powder diffraction (XRPD), scanning electron microscopy, and inductively coupled plasma-optical emission spectrometry (ICP-OES). Quantitative evaluation of the extent of reaction by ICP-OES and XRPD methods enabled the analysis of hydrothermal evolution with prolonged time. The hydrothermal treatment of K-feldspar with lime exhibits complex product phases, including leftover K-feldspar, calcium hydroxide, calcite, grossular, tobermorite, alpha-dicalcium silicate hydrate, potassium carbonate, butschliite, and amorphous calcium silicate hydrate. The analysis of the reaction reveals that the K-feldspar dissolution showed a clear transition, with the hydrothermal reaction beginning to slow down after 20 h. The slowdown of the K-feldspar dissolution was essentially caused by different reaction kinetics and mechanisms before and after 20 h. The study yields vital and valuable insights into comprehending the chemistry and mineralogy of the artificial silicate composite material and producing a multielement reservoir from potassium-rich rocks.
Keywordhydrothermal reaction K-feldspar kinetics mechanism phase
DOI10.1002/slct.201802763
Funding OrganizationNational Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China
WOS KeywordQUARTZ PARTICLE-SIZE ; HYDROGARNET FORMATION ; POTASSIUM-FELDSPAR ; CALCIUM ; 180-DEGREES-C ; DECOMPOSITION ; TOBERMORITE ; FERTILIZER ; SYSTEM
Language英语
Funding ProjectNational Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China)[2006BAD10B04] ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China[2007EA173003]
Funding OrganizationNational Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; National Science & Technology Pillar Program during the Eleventh Five-Year Plan Period (China) ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China ; Knowledge Innovation Project of Chinese Academy of Sciences and Spark Program of China
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000453576900004
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90286
Collection矿产资源研究院重点实验室
Corresponding AuthorLiu, Shanke
Affiliation1.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
Recommended Citation
GB/T 7714
Liu, Shanke,Han, Cheng,Liu, Jianming. Study of K-Feldspar and Lime Hydrothermal Reaction at 190 degrees C: Phase, Kinetics and Mechanism with Reaction Time[J]. CHEMISTRYSELECT,2018,3(46):13010-13016.
APA Liu, Shanke,Han, Cheng,&Liu, Jianming.(2018).Study of K-Feldspar and Lime Hydrothermal Reaction at 190 degrees C: Phase, Kinetics and Mechanism with Reaction Time.CHEMISTRYSELECT,3(46),13010-13016.
MLA Liu, Shanke,et al."Study of K-Feldspar and Lime Hydrothermal Reaction at 190 degrees C: Phase, Kinetics and Mechanism with Reaction Time".CHEMISTRYSELECT 3.46(2018):13010-13016.
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