LiOH - H2O2 - H2O trinary system study for the selection of optimal conditions of lithium peroxide synthesis

2nd International Symposium on Fundamental Aspects of Rare-earth Elements Mining and Separation and Modern Materials Engineering

材料科学;物理学

Nefedov, R.A.^1 ; Ferapontov Yu, A.^1 ; Kozlova, N.P.^2

Tambov State Technical University, Sovetskaya Str., Tambov

106, Russia^1

JSC Corporation Roskhimzashchita, Morshanskoe Highway, Tambov

19, Russia^2

关键词: Concentration limits;    Decay kinetics;    Lithium peroxides;    Optimal conditions;    Stabilizing effects;    System study;    Temperature range;    X-ray phase analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/112/1/012018/pdf
DOI  :  10.1088/1757-899X/112/1/012018

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Using solubility method the decay kinetics of peroxide products contained in liquid phase of LiOH - H2O2- H2O trinary system with 2 to 6% by wt hydrogen peroxide content in liquid phase in 21 to 33 °C temperature range has been studied. Conducted studies have allowed to determine temperature and concentration limits of solid phase existence of Li2O2•H2O content, distinctness of which has been confirmed using chemical and qualitative X- ray phase analysis. Stabilizing effect of solid phase of Li2O2•H2O content on hydrogen peroxide decay contained in liquid phase of LiOH - H2O2- H2O trinary system under conditions of experiments conducted has been shown.