Phase Equilibria of the NaOH-NaBO2-Na2CO3-H2O System at 30°C, 60°C, and 100°C

被引：4
|
作者：
Qin, Shiyue [1 ]
Yin, Baowen [1 ,2 ]
Zhang, Yifei [1 ]
Zhang, Yi [1 ]
机构：
[1] Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
[2] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
来源：
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2015年 / 60卷 / 10期
基金：
中国国家自然科学基金;
关键词：
SOLID-LIQUID EQUILIBRIA; SODIUM PERBORATE TETRAHYDRATE; NABH4; KCL-KBR-K2B4O7-H2O; B4O72--H2O; SOLUBILITY; BORAX;
D O I：
10.1021/acs.jced.5b00443
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Equilibrium data of the NaOH-NaBO2-Na2CO3-H2O quaternary system at 30 degrees C, 60 degrees C, and 100 degrees C were measured by an isothermal method. The phase diagrams at 30 degrees C and 100 degrees C were constructed, and the crystallization zones were discussed. In the phase diagram, the quaternary system has two invariant points, five univariant curves, and four crystallization zones corresponding to NaBO2 center dot 4H(2)O (NaBO2 center dot 2H(2)O at 100 degrees C), NaBO2 center dot 2H(2)O (NaBO2 center dot 1/3H(2)O at 100 degrees C), Na2CO3 center dot H2O, and NaOH center dot H2KO (NaOH at 100 degrees C). In addition, the solubility isotherms of NaBO2 in Na2CO3-saturated NaOH solution and the solubility isotherms of Na2CO3 in NaBO2-saturated NaOH solution were plotted. The solubility of Na2CO3 in NaOH solution was compared with that in NaBO2-saturated NaOH solution. On the basis of the solubility data, a strategy for the effective separation of NaBO2 and Na2CO3 from the NaOH-NaBO2-Na2CO3-H2O quaternary system was proposed.
引用
收藏
页码：3018 / 3023
页数：6
相关论文
共 50 条
  • [1] Phase Equilibria in the NaOH-Na2CrO4-Na2CO3-H2O System
    Zhang, Yang
    Zheng, Shili
    Du, Hao
    Xu, Hongbin
    Zhang, Yi
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2010, 55 (07): : 2542 - 2545
  • [2] SOLUBILITY IN SYSTEM NA2SEO3-NA2CO3-H2O AT 30, 60 AND 90 DEGREES C
    CHIMBOUL.MT
    VASSILEV, H
    DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE, 1973, 26 (11): : 1509 - 1512
  • [3] Phase Equilibria in System KHCO3-K2CO3-H2O at 25°C
    Mazunin, S. A.
    Noskov, M. N.
    Elsukov, A., V
    RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2019, 64 (02) : 257 - 261
  • [4] Isothermal solubility of Na2B4O7-Na2CO3-NaHCO3-NaBO2-H2O system at 25, 35 and 45 °C
    Li, J
    Yang, Q
    Zhang, FX
    Li, HX
    Wang, ZJ
    ACTA PHYSICO-CHIMICA SINICA, 2001, 17 (11) : 1045 - 1048
  • [5] Study on the isothermal solubility of Na2B4O7-Na2CO3-NaHCO3-NaBO2-H2O system at 0, 15°C
    Li, J
    Yang, Q
    Zhang, FX
    Li, HX
    CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2001, 17 (06) : 849 - 852
  • [6] PHASE-EQUILIBRIA FOR CO2-C2H5OH-H2O SYSTEM
    TAKISHIMA, S
    SAIKI, K
    ARAI, K
    SAITO, S
    JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1986, 19 (01) : 48 - 56
  • [7] Phase Diagram for the NaOH-Al2O3-Na2CrO4-H2O System at (120 and 130) °C
    Liu, Huan
    Xu, Hong-bin
    Zhang, Bing-zhu
    Tian, Ying
    Zhang, Xiao-fei
    Zhang, Yang
    Zhang, Yi
    JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2014, 59 (11): : 3314 - 3318
  • [8] Phase Equilibria in the NaCl-NaBO2-Na2CO3-KCl Quaternary System
    Kochkarov, Zh. A.
    Zhizhuev, R. A.
    RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2016, 61 (09) : 1175 - 1181
  • [9] Studies on the polythermal solubility of system Na2B4O7-Na2CO3-NaHCO3-NaBO2-H2O at 0-45 °C
    Zhang, FX
    Yang, Q
    Li, J
    Wang, ZJ
    Li, HX
    CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 2002, 23 (07): : 1236 - 1240
  • [10] Phase Equilibria in the Quinary Na,K,Mg,Sr||Cl–H2O System at 100°C
    Sh. Tursunbadalov
    Russian Journal of Inorganic Chemistry, 2020, 65 : 205 - 211
12345