Study on hydrothermal synthesis dynamics of nanoscale xonotlite fibers

2017 2nd International Conference on Innovative Engineering Materials

Liu, F.^1,2,3 ; Chen, S.^1,3 ; Lin, Q.^1,2 ; Wang, X.D.^2 ; Cao, J.X.^1,2,3

School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou

550025, China^1

Key Laboratory of Green Chemical and Clean Energy Technology, Guiyang, Guizhou

550025, China^2

Key Laboratory of Efficient Utilization of Mineral and Green Chemical Technology, Guiyang, Guizhou

550025, China^3

关键词: Calcium concentration;    Calculated values;    Electrical conductivity;    Fourth order Runge-Kutta methods;    Least-squares-fitting method;    Measured values;    Reaction temperature;    Spline interpolation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/284/1/012021/pdf
DOI  :  10.1088/1757-899X/284/1/012021

来源: IOP

【 摘 要 】

The xonotlite crystals were synthesized via the hydrothermal synthesis manner from CaO and SiO2as the raw materials with their Si/Ca molar ratio of 1.0. Hydrothermal synthesis dynamics of nanoscale xonotlite fibers was explored by masterly measuring the electrical conductivities and the calcium concentrations of product slurries synthesized at various reaction temperature in this paper. The results indicated that the calculated values of the products' quality at various reaction temperatures were consistent with the measured values. Based on chemical reaction kinetic, using fourth-order Runge-Kutta method, spline interpolation and least-squares fitting method, the dynamic relationship of xonotlite fibers synthesized via hydrothermal synthesis process is of .