Preparation and Experimental Study of Three Element Mixed Molten Salt

5th Annual International Workshop on Materials Science and Engineering

Yan, Quanying^1 ; Wang, Chenyu^1 ; Jing, Zhang^1 ; Liu, Chao^1 ; Fan, Qingzhu^1

Beijing Municipality Key Lab of Heating, Gas Supply Ventilating and Air Conditioning Engineering, Beijing University of Civil Engineering and Architecture, Beijing

100044, China^1

关键词: Freezing point;    Low melting point;    Mixed salts;    Molten salt;    Research results;    Solidification points;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/585/1/012010/pdf
DOI  :  10.1088/1757-899X/585/1/012010

来源: IOP

【 摘 要 】

36 kinds of mixed salts made of KCl, Na2CO3 and K2CO3 were prepared in this paper. The melting point and solidification point of the sample were studied by DSC, and the stability of the selected samples is also tested. The experimental results show that the smaller component of KCl, the smaller melting point of molten salt. The melting point of the samples which melted together was 570-580°C, and the freezing point is mainly between 550 and 570 C. The test ratio of the samples were selected from experiments was 2: 3: 5 (KCl: Na2CO3: K2CO3). The sample has a low melting point at 568.9°C and a low freezing point at 545.3°C, which can effectively avoid the blockage of piping system. The research results in this paper will provide reference and basis for the application of ternary mixed molten salt in solar energy field.