Kinetics and mechanism of the leaching of sodium from A-terskite and its influence on ion-exchange properties

被引：2
|
作者：
Chukanov, N. V. [1 ]
Tarasov, V. P. [1 ]
Kazakov, A. I. [1 ]
Chervonnaya, N. A. [1 ]
Vozchikova, S. A. [1 ]
Pekov, I. V. [2 ]
机构：
[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Oblast, Russia
[2] Moscow MV Lomonosov State Univ, Moscow, Russia
来源：
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B | 2011年 / 5卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
leaching; cation exchange; ion mobility; terskite; ADSORPTION; REMOVAL;
D O I：
10.1134/S199079311102031X
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
NMR Na-23 spectroscopy, conductometry, calorimetry, and EDs electron microprobe are used to study the ion mobility, the kinetics of the leaching of sodium and the influence of the leaching on the ion-exchange properties of A-terskite (H (x) Na4 - x ZrSi6O15(OH)(2) center dot H2O), a natural microporous material with a high selectivity with respect to Cs+. The leaching of Na+ ions by water is preceded by their transition into a mobile state in the zeolite channels of the sorbent. Over the temperature range of 20 to 90A degrees C, the kinetics of leaching at the initial stage is limited by diffusion in the liquid phase, becoming of dispersion character at late stages. The activity of A-terskite in the process of ion exchange with Cs+ increases with the degree of leaching.
引用
收藏
页码：284 / 289
页数：6
相关论文
共 50 条
  • [21] MORE ON MECHANISM AND SOME IMPORTANT PROPERTIES OF CHROMATE ION-EXCHANGE
    SENGUPTA, AK
    SUBRAMONIAN, S
    CLIFFORD, D
    JOURNAL OF ENVIRONMENTAL ENGINEERING-ASCE, 1988, 114 (01): : 137 - 153
  • [22] The influence of protein size on adsorption kinetics and equilibria in ion-exchange chromatography
    Garke, G
    Hartmann, R
    Papamichael, N
    Deckwer, WD
    Anspach, FB
    SEPARATION SCIENCE AND TECHNOLOGY, 1999, 34 (13) : 2521 - 2538
  • [23] KINETICS OF ZINC REMOVAL FROM COBALT ELECTROLYTES BY ION-EXCHANGE
    SWAMI, N
    DREISINGER, DB
    SOLVENT EXTRACTION AND ION EXCHANGE, 1995, 13 (06) : 1037 - 1062
  • [24] EFFECT OF PH ON ION-EXCHANGE PROPERTIES OF HYDRATED ALUMINA .2. KINETICS OF EXCHANGE
    CHURMS, SC
    JOURNAL OF THE SOUTH AFRICAN CHEMICAL INSTITUTE, 1966, 19 (02): : 108 - &
  • [25] Ultrafine Sodium Titanate Nanowires with Extraordinary Sr Ion-Exchange Properties
    Ishikawa, Yoshifumi
    Tsukimoto, Susumu
    Nakayama, Koji S.
    Asao, Naoki
    NANO LETTERS, 2015, 15 (05) : 2980 - 2984
  • [26] SODIUM ION-EXCHANGE OF H-MORDENITE - ADSORPTION PROPERTIES AND ACIDITY
    CARTRAUD, P
    TYBURCE, B
    JOURNAL DE CHIMIE PHYSIQUE ET DE PHYSICO-CHIMIE BIOLOGIQUE, 1993, 90 (7-8) : 1521 - 1529
  • [27] The influence of activation of heterogeneous ion-exchange membranes on their electrochemical properties
    Brozova, L.
    Krivcik, J.
    Nedela, D.
    Kysela, V.
    Zitka, J.
    DESALINATION AND WATER TREATMENT, 2015, 56 (12) : 3228 - 3232
  • [28] The influence of the natures of the solvent and coion on the properties of ion-exchange systems
    Mechkovskii, S. A.
    Sankevich, N. A.
    Trifonova, A. N.
    RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A, 2008, 82 (08) : 1273 - 1276
  • [29] The influence of the natures of the solvent and coion on the properties of ion-exchange systems
    S. A. Mechkovskii
    N. A. Sankevich
    A. N. Trifonova
    Russian Journal of Physical Chemistry A, Focus on Chemistry, 2008, 82 : 1273 - 1276
  • [30] INFLUENCE OF A CONTINUOUS SYNTHESIS PROCESS ON THE PROPERTIES OF ION-EXCHANGE FIBERS
    MAKAROVA, MM
    IVANOVA, GV
    EMETS, LV
    VOLF, LA
    PLATONOVA, NV
    JOURNAL OF APPLIED CHEMISTRY OF THE USSR, 1988, 61 (11): : 2348 - 2351
12345