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GB/T 32992-2016: Determination of gold adsorption capacity and rate of activated carbon
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| GB/T 32992-2016 | English | 199 |
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Determination of gold adsorption capacity and rate of activated carbon
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GB/T 32992-2016
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Basic data | Standard ID | GB/T 32992-2016 (GB/T32992-2016) | | Description (Translated English) | Determination of gold adsorption capacity and rate of activated carbon | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D46 | | Classification of International Standard | 77.150.01 | | Word Count Estimation | 10,179 | | Date of Issue | 2016-10-13 | | Date of Implementation | 2017-09-01 | | Regulation (derived from) | National Standard Notice No.1716 of 2016 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 32992-2016: Determination of gold adsorption capacity and rate of activated carbon---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of gold adsorption capacity and rate of activated carbon
ICS 77.150.01
D46
National Standards of People's Republic of China
Determination of the Capacity and Rate of Adsorption of Activated Carbon
2016-10-13 released
2017-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the National Gold Standardization Technical Committee (SAC/TC379).
This standard is responsible for drafting units. Zijin Mining Group Co., Ltd.
This standard participates in the drafting unit. Changchun Gold Research Institute, Xiamen Zijin Mining & Metallurgy Technology Co., Ltd., Beijing Mining and Metallurgy Research Institute, Shandong National University
Gold Co., Ltd., Lingbao Gold Co., Ltd. Gold smelting branch, Henan Zhongyuan Gold Smelter Co., Ltd.
The main drafters of this standard. Xia Zhenzhu, Chen Zhuhai, Lin Changlan, Long Xiujia, Yu Jinsheng, Chen Yonghong, Hong Bo, Gao Zhenguang, Liu Haibo,
Liu Yongyu, Zhang Lin, Wang Hui, Kong Lingjiang, Du Xiang, Song Yaoyuan, Hu Zhaofeng, Liu Chengxiang.
Determination of the Capacity and Rate of Adsorption of Activated Carbon
Warning. This standard uses sodium cyanide, is a highly toxic chemicals, to remind users to pay attention to safe operation, waste should be properly safe and safe.
1 Scope
This standard specifies the determination method of the capacity and rate of adsorption of coconut shell activated carbon in the wet gold extraction process.
This standard applies to the wet gold extraction process used in the coconut shell activated carbon adsorption capacity and the rate of determination, for activated carbon adsorption gold
Can be evaluated.
2 terms and definitions
The following terms and definitions apply to this document.
2.1
Freundlich adsorption isotherm Freundlichadsorptionisotherm
At a constant temperature, the relationship between the amount of adsorbed components per unit mass of adsorbent and the equilibrium concentration of the component is in accordance with Freundlich
Adsorption equation, see equation (1).
Q = kc
n or lgQ =
nlgc lgk
(1)
Where.
Q - the amount of adsorbed components per unit mass of adsorbent when adsorbed equilibrium;
c - the concentration of the adsorbed component at the time of adsorption equilibrium;
k, n - constant.
2.2
Adsorption capacity
The amount of adsorbent per unit mass of adsorbent for a given component in a fluid or fluid mixture at a given temperature, concentration or pressure. This standard
Quasi-medium, activated carbon adsorption gold capacity refers to the adsorption equilibrium in the gold concentration of 1.0μg/mL unit mass of activated carbon adsorption of gold.
2.3
Adsorption rate
At a given temperature, concentration or pressure, the amount of adsorbent adsorbed per unit of time for a given component. In this standard, the activity
The carbon adsorption rate of carbon refers to the amount of adsorbed gold per unit mass of activated carbon adsorbed for 60 min in a solution with a gold concentration of 10.0 μg/mL.
Determination of Adsorption Gold Capacity
3.1 Method Summary
In the constant temperature conditions, the sample in a certain concentration of gold-containing solution to achieve adsorption equilibrium, the atomic absorption spectrometry determination of adsorption liquid
Gold concentration, drawn Freundlich adsorption isotherm, calculated by the activated carbon adsorption gold capacity.
3.2 Reagents
Unless otherwise stated, analytical pure reagents and deionized water or comparable purity of water are used in the analysis.
3.2.1 sponge gold. mass fraction ≥ 99.99%.
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