An investigation on the phase diagram of ternary system LaCl3-KCl-LiCl

Abstract

The phase diagram of ternary system LaCl3-KCl-LiCl has been investigated by means of DTA. It was found that the ternary system consist of two pseudoternary system. There are five primary crystallization surfaces, seven secondary crystallization lines, two ternary eutectic points and a ternary peritectic point in the system LaCl3-KCl-LiCl. Three reactions occurred in the system LaCl3-KCl-LiCl are: L=KCl+LiCl+K2LaCl5 E1[0.115(W/kg.kg^-^1)LaCl3, 0.474(W/kg.kg^-^1)KCl, 0.411(W/kg.kg^-^1)LiCl, 345℃] L=K2LaCl5+KLa3Cl10+LiCl E2[0.494(W/kg.kg^-^1)LaCl3, 0.216((W/kg.kg^-^1)KCl, 0.290((W/kg.kg^-^1)LiCl, 410℃] L+LaCl3=KLa3Cl10+LiCl P[0.600((W/kg.kg^-^1)LaCl3, 0.108(W/kg.kg^-^1)KCl, 0.292(W/kg.kg^-^1)LiCl, 429℃]

Key words: TERNARY SYSTEM, POTASSIUM CHLORIDE, DIFFERENTIAL THERMAL ANALYSIS, PHASE DIAGRAM, LITHIUM CHLORIDE, LANTHANUM CHLORIDE

CLC Number:

O642

Cite this article

SONG XIUQIN;ZHENG CHAOGUI. An investigation on the phase diagram of ternary system LaCl3-KCl-LiCl[J]. Acta Chimica Sinica, 1995, 53(10): 978-984.

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LaCl3-KCl-LiCl三元系统相图的研究