Transformations of [Au(CN)2]- at the contact with activated carbon surface

被引：1

作者：

Ibragimova, R. I. ^{[1
,2
]}

Kubyshkin, S. A. ^{[1
]}

Fateev, A. A. ^{[1
]}

Krivov, A. S. ^{[1
,3
]}

Fedyukevich, V. A. ^{[1
,3
]}

Shcherbakov, Yu. S. ^{[1
]}

Mil'man, B. M. ^{[1
]}

Vorob'ev-Desyatovskii, N. V. ^{[1
]}

机构：

[1] JSC Polymet Engn, St Petersburg 198216, Russia

[2] St Petersburg Technol & Design Univ, St Petersburg, Russia

[3] Tech Univ, St Petersburg State Inst Technol, St Petersburg, Russia

来源：

RUSSIAN JOURNAL OF GENERAL CHEMISTRY | 2013年 / 83卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

NITROGEN-FIXATION; CYANO-COMPLEXES; GOLD; ADSORPTION; MECHANISM; OXIDATION; BEHAVIOR; WATER;

D O I：

10.1134/S1070363213120050

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have studied the processes occurring when alkaline aqueous solution of Na[Au(CN)(2)] is brought in contact with activated carbon surface. It has been shown that the adsorption of the gold cyanide complex occurs via several independent routes, one of them being accompanied with the partial breakdown of the inner sphere of the compound and free cyanide ions release into the solution. The latter process decreases the gold recovery by aqueous NaOH during the high-temperature (150A degrees C) desorption. A prolonged storage of the adsorbent saturated with [Au(CN)(2)](-) in air produces a similar result. The reasons of the observed phenomena have been discussed.

引用

页码：2254 / 2259

页数：6

共 50 条

[21] [Au(SCN)2]- an analogue of [Au(Cn)2]-.
Coker, NL
Bauer, JK
Elder, RC
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2001, 222 : U604 - U605
[22] THE MECHANISMS OF ADSORPTION OF HG(CN)2 AND HGCL2 ON TO ACTIVATED CARBON
ADAMS, MD
HYDROMETALLURGY, 1991, 26 (02) : 201 - 210
[23] [Au(CN)2]-Adsorption on a Graphite (0001) Surface: A First Principles Study
Li, Xianhai
Zhang, Qin
Xie, Jun
Shen, Zhihui
MINERALS, 2018, 8 (10)
[24] THE MECHANISM OF ADSORPTION OF AU(CN)4-ONTO ACTIVATED CARBON (VOL 31, PG 265, 1992)
ADAMS, MD
HYDROMETALLURGY, 1993, 34 (02) : 275 - 275
[25] An in situ SFG and SERS investigation into the electrodeposition of Au from Au(CN)-2 and Au(CN)-4 solutions
Bozzini, Benedetto
Busson, Bertrand
De Gaudenzi, Gian Pietro
D'Urzo, Lucia
Mele, Claudio
Tadjeddine, Abderrahmane
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2007, 602 (01) : 61 - 69
[26] THE MECHANISMS OF ADSORPTION OF AG(CN)2- AND AG+ ON TO ACTIVATED CARBON
ADAMS, MD
HYDROMETALLURGY, 1992, 31 (1-2) : 121 - 138
[27] THALLIUM DICYANOAURATE(I), TL[AU(CN)2], AND CESIUM DICYANOAURATE(I), CS[AU(CN)2]
BLOM, N
LUDI, A
BURGI, HB
TICHY, K
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1984, 40 (NOV) : 1767 - 1769
[28] Adsorption of O2 and CN on the Copper Activated Sphalerite (110) Surface
Chen Ye
Chen Jian-Hua
Guo Jin
ACTA PHYSICO-CHIMICA SINICA, 2011, 27 (02) : 363 - 368
[29] Influence of activated carbon surface chemistry on the activity of Au/AC catalysts in glycerol oxidation
Rodrigues, Elodie G.
Pereira, Manuel F. R.
Chen, Xiaowei
Delgado, Juan J.
Orfao, Jose J. M.
JOURNAL OF CATALYSIS, 2011, 281 (01) : 119 - 127
[30] Fermi surface and low temperature structure in (DMET-TSeF)2Au(CN)2
Kato, K
Oshima, K
Kambe, T
Nogami, Y
Sasaki, T
Motokawa, M
Kato, R
SYNTHETIC METALS, 2003, 135 (1-3) : 577 - 578

← 1 2 3 4 5 →