Preparation of Anhydrous Magnesium Chloride from Magnesium Chloride Hexahydrate

被引：12
|
作者：
Zhang, Zhimin [1 ,2 ]
Lu, Xuchen [1 ,3 ]
Pan, Feng [1 ,2 ]
Wang, Yun [1 ,2 ]
Yang, Suping [1 ,2 ]
机构：
[1] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
[3] United Res Ctr Resource & Mat, Wuhai 016000, Peoples R China
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE | 2013年 / 44卷 / 02期
关键词：
THERMAL-DECOMPOSITION;
D O I：
10.1007/s11663-012-9777-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A method was proposed for the preparation of high-purity anhydrous magnesium chloride by using magnesium chloride hexahydrate and ammonium chloride as raw materials, and alumina as covering agent. X-ray diffraction was employed to investigate the process. The mechanism involved in the process was proposed. The factors affecting the purity of anhydrous magnesium chloride were investigated. Dehydrated ammonium carnallite was formed in the process to facilitate the dehydration process. Alumina as covering agent can guarantee that the formation of high-purity anhydrous magnesium chloride was obtained. The content of magnesia in anhydrous magnesium chloride was 0.02 pct under the optimum conditions: molar ratio of ammonium chloride to dehydrated magnesium chloride was 2:1, thickness of alumina 1.3 cm, reaction temperature 723 K (450 A degrees C), reaction time 1 hour, and the number of crystallized water 0.6 to 2.2.
引用
收藏
页码：354 / 358
页数：5
相关论文
共 50 条
  • [31] Determination and Correlation of Magnesium Chloride Hexahydrate Solubility in Alcohol Solvents
    Liu D.
    Mao L.-L.
    Wang H.-Z.
    Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities, 2018, 32 (01): : 24 - 29
  • [32] THE PHASE-DIAGRAM OF MAGNESIUM BROMIDE AND CHLORIDE HEXAHYDRATE MIXTURES
    MARCUS, Y
    DANGOR, V
    LESSERY, S
    THERMOCHIMICA ACTA, 1984, 77 (1-3) : 219 - 226
  • [33] DEHYDRATION OF AMMONIUM MAGNESIUM-CHLORIDE HEXAHYDRATE (AMMONIUM CARNALLITE)
    BALL, MC
    LADNER, NG
    JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1979, (02): : 330 - 333
  • [34] PREPARATION OF NEW NITRILE COMPLEXES WITH MAGNESIUM CHLORIDE - IMPROVEMENT OF CHLOROCYANURATION TECHNIQUE IN ANHYDROUS MEDIUM
    MACCORDICK, J
    BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE PARTIE I-PHYSICOCHIMIE DES SYSTEMES LIQUIDES ELECTROCHIMIE CATALYSE GENIE CHIMIQUE, 1975, (1-2): : 107 - 108
  • [35] Magnesium recovery from magnesite tailings by acid leaching and production of magnesium chloride hexahydrate from leaching solution by evaporation
    Ozdemir, Mine
    Cakir, Dilek
    Kipcak, Ilker
    INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 2009, 93 (02) : 209 - 212
  • [36] Preparation and thermal properties research of a novel magnesium chloride hexahydrate-magnesium nitrate hexahydrate/graphite phase carbon nitride composite phase change material
    Zhang W.
    Ling Z.
    Fang X.
    Zhang Z.
    Huagong Xuebao/CIESC Journal, 2021, 72 (12): : 6399 - 6406
  • [37] CATALYTIC SYNTHESIS OF HYDRIDOMAGNESIUM CHLORIDE FROM MAGNESIUM, HYDROGEN AND MAGNESIUM-CHLORIDE
    BOGDANOVIC, B
    SCHWICKARDI, M
    ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, 1984, 39 (08): : 1001 - 1003
  • [38] NEW ECONOMICAL PROCESS FOR MAKING ANHYDROUS MAGNESIUM-CHLORIDE
    ALLAIN, RJ
    JOURNAL OF METALS, 1979, 31 (12): : 108 - 108
  • [39] THE LOW PRESSURE DEHYDRATION OF MAGNESIUM SULPHATE HEPTAHYDRATE AND COBALTOUS CHLORIDE HEXAHYDRATE
    FORD, RW
    FROST, GB
    CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1956, 34 (05): : 591 - 599
  • [40] Analysis of a system of storage heat thermal using magnesium chloride hexahydrate
    Felipe Macia, Andres
    Camilo Parra, Jhon
    Chejne, Farid
    REVISTA FACULTAD DE INGENIERIA-UNIVERSIDAD DE ANTIOQUIA, 2010, (51): : 34 - 43
12345