Selective adsorption of the gold-cyanide complex from waste rinse water using Dowex 21K XLT resin

Yong Sik Ok; Choong Jeon

doi:10.1016/j.jiec.2013.07.010

Selective adsorption of the gold-cyanide complex from waste rinse water using Dowex 21K XLT resin

Yong Sik Ok
, Choong Jeon^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

24 Citations (Scopus)

Abstract

The Dowex 21K XLT resin which is a strong basic resin was used to selectively adsorb gold-cyanide complex only, in the actual waste rinse water which coexisted with lead-cyanide complexes. The existence of gold-cyanide complex on the surface of the Dowex 21K XLT resin was proved by SEM and EDX analysis. The maximum removal efficiency value for gold-cyanide complex was about 93% for 10. g/L of resin concentration while adsorption for lead-cyanide complexes did not almost happen at pH 13. The adsorption capacity of Dowex 21K XLT resin for gold and lead-cyanide complexes was about 32 and 0.8. mg/g-dry mass, respectively. Also, most of adsorption process for gold-cyanide complex was completed within 1. h. The exothermic nature of gold-cyanide complex adsorption onto the Dowex 21K XLT resin was revealed because the removal efficiency for gold-cyanide somewhat decreased as temperature increased. It was concluded that the Dowex 21K XLT resin, which has excellent selectivity to gold-cyanide complex, can be applied to the recovery system for gold-cyanide complex in actual waste rinse water.

Original language	English
Pages (from-to)	1308-1312
Number of pages	5
Journal	Journal of Industrial and Engineering Chemistry
Volume	20
Issue number	4
DOIs	https://doi.org/10.1016/j.jiec.2013.07.010
Publication status	Published - 2014 Jul 25
Externally published	Yes

Bibliographical note

Funding Information:
The authors gratefully acknowledge the Korea Institute of Energy Technology Evaluation and Planning for the financial support toward this study.

Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.

Keywords

Adsorption
Dowex 21K XLT resin
Gold-cyanide complex
Removal
Selectivity

ASJC Scopus subject areas

General Chemical Engineering

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10.1016/j.jiec.2013.07.010

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title = "Selective adsorption of the gold-cyanide complex from waste rinse water using Dowex 21K XLT resin",

abstract = "The Dowex 21K XLT resin which is a strong basic resin was used to selectively adsorb gold-cyanide complex only, in the actual waste rinse water which coexisted with lead-cyanide complexes. The existence of gold-cyanide complex on the surface of the Dowex 21K XLT resin was proved by SEM and EDX analysis. The maximum removal efficiency value for gold-cyanide complex was about 93\% for 10. g/L of resin concentration while adsorption for lead-cyanide complexes did not almost happen at pH 13. The adsorption capacity of Dowex 21K XLT resin for gold and lead-cyanide complexes was about 32 and 0.8. mg/g-dry mass, respectively. Also, most of adsorption process for gold-cyanide complex was completed within 1. h. The exothermic nature of gold-cyanide complex adsorption onto the Dowex 21K XLT resin was revealed because the removal efficiency for gold-cyanide somewhat decreased as temperature increased. It was concluded that the Dowex 21K XLT resin, which has excellent selectivity to gold-cyanide complex, can be applied to the recovery system for gold-cyanide complex in actual waste rinse water.",

keywords = "Adsorption, Dowex 21K XLT resin, Gold-cyanide complex, Removal, Selectivity",

author = "Ok, \{Yong Sik\} and Choong Jeon",

note = "Funding Information: The authors gratefully acknowledge the Korea Institute of Energy Technology Evaluation and Planning for the financial support toward this study. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

year = "2014",

month = jul,

day = "25",

doi = "10.1016/j.jiec.2013.07.010",

language = "English",

volume = "20",

pages = "1308--1312",

journal = "Journal of Industrial and Engineering Chemistry",

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publisher = "Korean Society of Industrial Engineering Chemistry",

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T1 - Selective adsorption of the gold-cyanide complex from waste rinse water using Dowex 21K XLT resin

AU - Ok, Yong Sik

AU - Jeon, Choong

N1 - Funding Information: The authors gratefully acknowledge the Korea Institute of Energy Technology Evaluation and Planning for the financial support toward this study. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 2014/7/25

Y1 - 2014/7/25

N2 - The Dowex 21K XLT resin which is a strong basic resin was used to selectively adsorb gold-cyanide complex only, in the actual waste rinse water which coexisted with lead-cyanide complexes. The existence of gold-cyanide complex on the surface of the Dowex 21K XLT resin was proved by SEM and EDX analysis. The maximum removal efficiency value for gold-cyanide complex was about 93% for 10. g/L of resin concentration while adsorption for lead-cyanide complexes did not almost happen at pH 13. The adsorption capacity of Dowex 21K XLT resin for gold and lead-cyanide complexes was about 32 and 0.8. mg/g-dry mass, respectively. Also, most of adsorption process for gold-cyanide complex was completed within 1. h. The exothermic nature of gold-cyanide complex adsorption onto the Dowex 21K XLT resin was revealed because the removal efficiency for gold-cyanide somewhat decreased as temperature increased. It was concluded that the Dowex 21K XLT resin, which has excellent selectivity to gold-cyanide complex, can be applied to the recovery system for gold-cyanide complex in actual waste rinse water.

AB - The Dowex 21K XLT resin which is a strong basic resin was used to selectively adsorb gold-cyanide complex only, in the actual waste rinse water which coexisted with lead-cyanide complexes. The existence of gold-cyanide complex on the surface of the Dowex 21K XLT resin was proved by SEM and EDX analysis. The maximum removal efficiency value for gold-cyanide complex was about 93% for 10. g/L of resin concentration while adsorption for lead-cyanide complexes did not almost happen at pH 13. The adsorption capacity of Dowex 21K XLT resin for gold and lead-cyanide complexes was about 32 and 0.8. mg/g-dry mass, respectively. Also, most of adsorption process for gold-cyanide complex was completed within 1. h. The exothermic nature of gold-cyanide complex adsorption onto the Dowex 21K XLT resin was revealed because the removal efficiency for gold-cyanide somewhat decreased as temperature increased. It was concluded that the Dowex 21K XLT resin, which has excellent selectivity to gold-cyanide complex, can be applied to the recovery system for gold-cyanide complex in actual waste rinse water.

KW - Adsorption

KW - Dowex 21K XLT resin

KW - Gold-cyanide complex

KW - Removal

KW - Selectivity

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U2 - 10.1016/j.jiec.2013.07.010

DO - 10.1016/j.jiec.2013.07.010

M3 - Article

AN - SCOPUS:84900471989

SN - 1226-086X

VL - 20

SP - 1308

EP - 1312

JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

IS - 4

ER -

Selective adsorption of the gold-cyanide complex from waste rinse water using Dowex 21K XLT resin

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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