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YS/T 775.5-2011: Methods for chemical analysis of lead anode slime. Part 5: Determination of gold and silver content. Fire assay gravimetric method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 775.5-2011 | English | 189 |
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Methods for chemical analysis of lead anode slime. Part 5: Determination of gold and silver content. Fire assay gravimetric method
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YS/T 775.5-2011
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Basic data | Standard ID | YS/T 775.5-2011 (YS/T775.5-2011) | | Description (Translated English) | Methods for chemical analysis of lead anode slime. Part 5: Determination of gold and silver content. Fire assay gravimetric method | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.01 | | Word Count Estimation | 7,760 | | Date of Issue | 2011-12-20 | | Date of Implementation | 2012-07-01 | | Regulation (derived from) | ?MIIT Announcement 2011 No.43 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the lead anode slime gold, Determination of silver content. This section applies to the lead anode slime gold, Determination of silver content. Measuring range gold 0. 050kg/t ~ 1. 000kg/t, silver 50. 00kg/t ~ 250. 00kg/t. | YS/T 775.5-2011: Methods for chemical analysis of lead anode slime. Part 5: Determination of gold and silver content. Fire assay gravimetric method
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Methods for chemical analysis of lead anode slime.Part 5. Determination of gold and silver content.Fire assay gravimetric method
ICS 77.120.01
H13
People's Republic of China Nonferrous Metals Industry Standard
Methods for chemical analysis of lead anodes
Part 5. determination of gold and silver
Fire test gold weight method
Part 5. Determination ofgoldandsilvercontent-
2011-12-20 release
2012-07-01 Implementation
Issued by the Ministry of Industry and Information Technology of the People's Republic of China
Foreword
YS/T 775-2011 "lead anode mud chemical analysis method" is divided into seven parts.
- Part 1. Determination of lead content - Na2EDTA titration;
Part 2. Determination of Bismuth Flame Atomic Absorption Spectrometry and Na2EDTA Titration;
- Part 3. Determination of arsenic content - Potassium bromate titration;
- Part 4. Determination of antimony content - Flame atomic absorption spectrometry and cerium sulphate titration;
- Part 5. Determination of gold and silver;
- Part 6. Determination of copper content - Iodometric method;
Part 7. Determination of arsenic, copper and selenium - Inductively coupled plasma atomic emission spectrometric method.
This section is part 5.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part is the national nonferrous Metals Standardization Technical Committee (SAC/TC243).
This part is responsible for drafting units. Shaanxi Dongling Smelting Co., Ltd.
This part of the drafting unit. Tongling Nonferrous Metals Group Holdings Limited, Beijing Mining and Metallurgy Research Institute.
This part participates in the drafting unit. Shaanxi Dongling Smelting Co., Ltd., Zhuzhou Smelting Group Co., Ltd., China Metallurgical Huludao Nonferrous Metals
Group Limited.
This part of the main drafters. Shao Conghe, Li Qinmei, Zhou Weiping, Fan Zhanfang, Yuan Yuxia, Wang Haoying, Chen Diangeng, Zhou Wei, Yang Yan, Ma Xiaoyan,
Ning Pingli, Xiong Fangxiang, Zhang Ming, Xi Hongjie, Ding Li.
Methods for chemical analysis of lead anodes
Part 5. determination of gold and silver
Fire test gold weight method
1 Scope
This section specifies the method for the determination of gold and silver in lead electrolytic anode mud.
This part is applicable to the determination of gold and silver in lead electrolytic anode mud. Determination of the range of gold 0.050kg/t ~ 1.000kg/t;
Silver 50.00kg/t ~ 250.00kg/t.
2 method summary
The sample with the right amount of flux melting at the same time, lead to capture gold, silver to form a buckle. Other impurities and flux generated fusible slag, the use of
The density of the lead and the slag is different from that of the slag and the slag is separated from the slag, and the gold and silver are obtained by soaking. The amount of gold and silver is measured by weighing method. Use gold insoluble
In the nature of nitric acid, gold and silver separation, with the weighing method to determine the amount of gold, the amount of gold minus the amount of silver.
3 reagent
Unless otherwise stated, only the reagents identified as analytical reagents and distilled or deionized water or comparable purity were used in the analysis.
3.1 anhydrous sodium carbonate, powder, industrial pure.
3.2 lead oxide, powder. (Au < 0.01 g/t, Ag < 0.2 g/t)
3.3 Silica, powder, industrial pure.
3.4 borax, powder, industrial pure.
3.5 sodium chloride, powder, industrial pure.
3.6 Starch, powdery.
3.7 nitric acid (1 1), without chloride ions.
3.8 nitric acid (1 7), without chloride ions.
3.9 glacial acetic acid (1 3).
4 instruments and equipment
4.1 balance. ultra-micro balance, the amount of 0.001mg.
4.2 test electric furnace. the maximum heating temperature of 1350 ℃.
4.3 test crucible. material for the fire-resistant clay, the volume of about 300mL ~ 500mL.
4.4 gray dish. the top diameter of about 35mm, the bottom diameter of about 40mm, about 30mm high, about 17mm deep.
Method. mix with the same amount of cement and ashes, add the right amount of water to stir, in the gray machine (4.5) on the compression molding, dry for two months
Back-up.
4.5 ash machine.
4.6 porcelain crucible. the volume of 30mL.
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