The role of carbonate ions in the ion-exchange Ni2+=2NH4+ in natural clinoptilolite

被引：33

作者：

Rodríguez-Iznaga, I ^{[1
]}

Rodríguez-Fuentes, G

Benítez-Aguilar, A

机构：

[1] Higher Inst Min Met Moa, Fac Met, Moa 83329, Holguin, Cuba

[2] Univ Havana, IMRE, Zeolites Engn Lab, La Habana 10400, Cuba

[3] Ctr Res Laterite, Moa 84390, Holguin, Cuba

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2000年 / 41卷 / 1-3期

关键词：

clinoptilolite; ion exchange; diffusion; precipitation; nickel; ammonium carbonate;

D O I：

10.1016/S1387-1811(00)00280-8

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The removal and recuperation of nickel and other heavy metals, from the ammoniacal-carbonate residual liquors of the Cuban Nickel Industry, by ion exchange have been studied using natural clinoptilolite from Caimanes deposit (Moa, Cuba). The present study was conducted to analyze the influence of carbonate anions during the NH4+ and Ni2+ exchange in clinoptilolite. The main ion-exchange kinetic parameters were determined on the basis of the Barrer theory and other criteria. The analysis of the results obtained by kinetic study, infrared spectrometry and X-ray diffraction led to the conclusion that, in addition to ion exchange, the Ni precipitates in the form of low soluble phases. (C) 2000 Elsevier Science B.V. All rights reserved,

引用

页码：129 / 136

页数：8

共 31 条

[1] SORPTION KINETICS AND TIME-LAG THEORY .1. CONSTANT DIFFUSION-COEFFICIENT [J].

ASH, R ;

BARRER, RM ;

CRAVEN, RJB .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS II, 1978, 74 :40-56

[2]

ATKINS PW, 1992, ELEMENTS PHYSICAL CH, P191

[3]

BARRER R, 1954, J CHEM SOC, P1879

[4] EXCHANGE OF SODIUM IN CLINOPTILOLITE BY ORGANIC CATIONS [J].

BARRER, RM ;

PAPADOPOULOS, R ;

REES, LVC .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1967, 29 (08) :2047-+

[5] ZEOLITE RHO .2. CATION-EXCHANGE EQUILIBRIA AND KINETICS [J].

BARRER, RM ;

BARRI, S ;

KLINOWSKI, J .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1980, 76 :1038-1051

[6] ION EXCHANGE IN POROUS CRYSTALS .1. SELF- AND EXCHANGE-DIFFUSION OF IONS IN CHABAZITES [J].

BARRER, RM ;

REES, LVC ;

BARTHOLO.RF .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1963, 24 (01) :51-&

[7]

BRECK DW, 1974, ZEOLITE MOL SIEVES, P571

[8]

BURRIEL F, 1978, QUIMICA ANAL CUALITA

[9]

CHELISHCHEV NF, 1988, IONIC EXCHANGE HIGH, P32

[10]

CHENG H, 1995, NATURAL ZEOLITES 93, P421

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