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GB/T 7739.4-2021: Methods for chemical analysis of gold concentrates - Part 4: Determination of copper content
Status: Valid GB/T 7739.4: Evolution and historical versions
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| GB/T 7739.4-2021 | English | 259 |
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Methods for chemical analysis of gold concentrates - Part 4: Determination of copper content
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GB/T 7739.4-2021
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| GB/T 7739.4-2007 | English | 319 |
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Methods for chemical analysis of gold concentrates -- Part 4: Determination of copper contents
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GB/T 7739.4-2007
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| GB/T 7739.4-1987 | English | 199 |
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Methods for chemical analysis of gold concentrates--The iodometric method for the determination of arsenic content
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GB/T 7739.4-1987
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PDF similar to GB/T 7739.4-2021
Basic data | Standard ID | GB/T 7739.4-2021 (GB/T7739.4-2021) | | Description (Translated English) | Methods for chemical analysis of gold concentrates - Part 4: Determination of copper content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D46 | | Word Count Estimation | 14,190 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 7739.4-2021: Methods for chemical analysis of gold concentrates - Part 4: Determination of copper content
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Methods for chemical analysis of gold concentrates-Part 4.Determination of copper content
ICS 73.060.99
CCSD46
National Standards of People's Republic of China
Replace GB/T 7739.4-2007
Chemical analysis method of gold concentrate
Part 4.Determination of the amount of copper
Released on 2021-05-21
2021-12-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Table of contents
Foreword Ⅲ
Introduction Ⅴ
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Method 1.Flame atomic absorption spectrometry 1
4.1 Principle 1
4.2 Reagents or materials 1
4.3 Equipment 2
4.4 Sample 2
4.5 Test Step 2
4.6 Test data processing 3
4.7 Precision 3
4.8 Test report 4
5 Method 2.Sodium thiosulfate titration method 4
5.1 Principle 4
5.2 Reagents or materials 4
5.3 Sample 5
5.4 Test Step 6
5.5 Test data processing 6
5.6 Precision 7
5.7 Test report 7
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document is Part 4 of GB/T 7739.GB/T 7739 "Methods for Chemical Analysis of Gold Concentrates" has published the following 14 parts.
---Part 1.Determination of the amount of gold and silver;
---Part 2.Determination of silver content by flame atomic absorption spectrometry;
---Part 3.Determination of arsenic content;
---Part 4.Determination of copper content;
---Part 5.Determination of lead content;
---Part 6.Determination of the amount of zinc;
---Part 7.Determination of iron content;
---Part 8.Determination of sulfur content;
---Part 9.Determination of carbon content;
---Part 10.Determination of the amount of antimony;
---Part 11.Determination of the amount of arsenic and bismuth;
---Part 12.Determination of arsenic, mercury, cadmium, lead and bismuth content by atomic fluorescence spectrometry;
---Part 13.Determination of lead, zinc, bismuth, cadmium, chromium, arsenic and mercury content inductively coupled plasma atomic emission spectrometry;
---Part 14.Determination of the amount of thallium inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry.
This document replaces GB/T 7739.4-2007 "Methods of Chemical Analysis of Gold Concentrate Part 4.Determination of Copper Content", and is in line with GB/T 7739.4-2007
Compared with.2007, in addition to structural adjustments and editorial changes, the main technical changes are as follows.
a) In Method 1, the range of copper mass score is changed (see Table 1, Chapter 2 of the.2007 edition);
b) Deleted the "allowable difference" requirement (see.2007 version of 2.7, 3.6);
c) In Method 1, the concentration of nitric acid when preparing the copper standard storage solution is changed (see 4.2.6, 2.2.4 of the.2007 edition);
d) In Method 1, the digestion method is changed from "hydrochloric acid, nitric acid" to "hydrochloric acid, nitric acid, perchloric acid" (see 4.5.3.1,.2007 edition
2.5.3.1);
e) In Method 1, "If the carbon and sulfur content in the sample is not high, perchloric acid does not need to be added during digestion" (see 4.5.3.1);
f) Added "repeatability" and "reproducibility" requirements (see 4.7, 5.6);
g) In Method 2, the concentration of sodium thiosulfate standard titration solution and the re-standardization regulations are changed (see 5.2.14, 3.2.18 of the.2007 edition);
h) In Method 2, the calculation formula of calibration and result is changed (see formula (2), formula (3), formula (2), formula
(3));
i) In Method 2, the preparation method of starch has been added (see 5.2.15);
j) In Method 2, the expression method of high silicon content is changed (see 5.4.3.1, 3.4.3.1 in.2007 edition);
k) In Method 2, the treatment method with high carbon content is changed (see 5.4.3.1, 3.4.3.1 of the.2007 edition);
l) In Method 2, the interference elimination methods of vanadium, chromium and manganese have been added (see 5.4.3.1).
Please note that some of the contents of this document may involve patents. The issuing agency of this document does not bear the responsibility for patent identification.
This document was proposed and managed by the National Gold Standardization Technical Committee (SAC/TC379).
Drafting organizations of this document. Changchun Gold Research Institute Co., Ltd., Daye Nonferrous Design and Research Institute Co., Ltd., Shenzhen Gold and Silver Jewelry
Inspection and Research Center Co., Ltd., Beikuang Testing Technology Co., Ltd., Zijin Mining Group Co., Ltd., Henan Zhongyuan Gold Smelter
Limited Liability Company, Beijing Guoshou Jewelry Inspection Co., Ltd., SDIC Jincheng Metallurgical Co., Ltd., Lingbao Gold Group Co., Ltd.
Company Gold Smelting Branch, Yunnan Copper Co., Ltd., China National Gold Group Inner Mongolia Mining Co., Ltd.
The main drafters of this document. Chen Yonghong, Zhang Yue, Lu Xingen, Hong Bo, Meng Xianwei, Zhao Kedi, Li Yanji, Huang Shangyuan, Wei Wen, Hu Junkai,
Du Yuanyuan, Wang Deyu, Zhang Chen, Han Congmei, Yang Yehao, Yu Jinsheng, Tian Jing, Ma Ruiyi, Qin Shenghui, Wang Qingli, Zhu Yansheng, Huang Shansha, Mu Xiumei,
Liu Bingdi.
The previous versions of this document and the documents replaced are as follows.
---GB/T 7739.4-2007;
---This is the first revision.
Introduction
After the raw ore has been processed by the separation operation, its main components have been enriched in the concentrate, and the secondary components of the ore or other associated metals have also been obtained.
When it comes to recycling, GB/T 7739 "Gold Concentrate Chemical Analysis Method" aims to help gold industrial and mining enterprises accurately understand the main components and impurities of gold concentrate
Content, which is conducive to optimizing the control parameters of the dressing and smelting process, accurately controlling the consumption of reagents, reducing the interference of impurity elements on the smelting and purification process, and improving the
The comprehensive recovery rate of valuable elements can contribute to the efficient recycling of resources of the entire gold industry, sustainable green and healthy development, and smart mines.
Construction provides technical support. GB/T 7739 is composed of 14 parts.
---Part 1.Determination of the amount of gold and silver. The purpose is to specify the fire assay gravimetric method and activity for the determination of the amount of gold and silver in the gold concentrate
Carbon enrichment-flame atomic absorption spectrometry and activated carbon enrichment-iodometry and the applicable measurement range of each method.
---Part 2.Determination of the amount of silver flame atomic absorption spectrometry. The purpose is to specify the flame atom for the determination of silver content in gold concentrate
Absorption spectroscopy and applicable measurement range.
---Part 3.Determination of arsenic content. The purpose is to specify the silver diethyldithiocarbamate spectrophotometer for the determination of arsenic in gold concentrate
Degree method and potassium dichromate titration method and the applicable measurement range of each method.
---Part 4.Determination of copper content. The purpose is to specify flame atomic absorption spectrometry and thiosulfuric acid for the determination of copper in gold concentrate
Sodium titration method and the applicable measurement range of each method.
---Part 5.Determination of lead content. The purpose is to specify flame atomic absorption spectrometry and ethylenediamine tetrachloride for the determination of lead in gold concentrate.
The disodium acetate titration method and the applicable measurement range of each method.
---Part 6.Determination of the amount of zinc. The purpose is to specify flame atomic absorption spectrometry and ethylenediamine tetrachloride for the determination of zinc in gold concentrate
The disodium acetate titration method and the applicable measurement range of each method.
---Part 7.Determination of iron content. The purpose is to specify the potassium dichromate titration method for the determination of iron in gold concentrates and the applicable determination
range.
---Part 8.Determination of sulfur content. The purpose is to specify the barium sulfate gravimetric method and the combustion-acid-base titration method for the determination of sulfur content in gold concentrate
And the applicable measurement range of each method.
---Part 9.Determination of carbon content. The purpose is to specify the ethanol-ethanolamine-potassium hydroxide titration method for the determination of carbon in gold concentrates and
Applicable measurement range.
---Part 10.Determination of the amount of antimony. The purpose is to specify the cerium sulfate titration method and the hydride generation method for the determination of antimony in gold concentrates.
Sub-fluorescence spectroscopy and the applicable measurement range of each method.
---Part 11.Determination of the amount of arsenic and bismuth. The purpose is to specify the hydride generation for the determination of the amount of arsenic and bismuth in the gold concentrate-atom
Fluorescence spectroscopy and applicable measurement range.
---Part 12.Determination of arsenic, mercury, cadmium, lead and bismuth content by atomic fluorescence spectrometry. The purpose is to regulate arsenic, mercury, cadmium,
Hydride generation-atomic fluorescence spectrometry for the determination of lead and bismuth content and the applicable measurement range.
--- Part 13.Determination of lead, zinc, bismuth, cadmium, chromium, arsenic and mercury content inductively coupled plasma atomic emission spectrometry. Aim at
Inductively coupled plasma atomic emission spectrometry for the determination of lead, zinc, bismuth, cadmium, chromium, arsenic and mercury in gold concentrates and its application
The measurement range.
---Part 14.Determination of the amount of thallium inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry. Item
It is the inductively coupled plasma atomic emission spectrometry and inductively coupled plasma mass spectrometry for the determination of thallium in gold concentrate
Method and the applicable measurement range of each method.
Chemical analysis method of gold concentrate
Part 4.Determination of the amount of copper
1 Scope
This document specifies the method for determining the amount of copper in gold concentrate.
This document is applicable to the determination of copper content in gold concentrates. Method 1 measurement range. 0.050%~2.00%; method 2 measurement range. 2.00%~
25.00%.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 17433 Basic terminology for chemical analysis of metallurgical products
3 Terms and definitions
The terms and definitions defined in GB/T 17433 apply to this document.
3.1
Laboratorysample
A sample prepared to be sent to a laboratory for inspection or testing.
[Source. GB/T 17433-2014,2.3.2.1]
3.2
Testsample
A sample that is further prepared from laboratory samples and can be weighed.
[Source. GB/T 17433-2014, 2.3.2.2]
3.3
Sample testportion
A certain amount of sample weighed for inspection or observation.
[Source. GB/T 17433-2014, 2.3.2.3]
4 Method 1.Flame atomic absorption spectrometry
4.1 Principle
The sample is dissolved in hydrochloric acid, nitric acid, and perchloric acid. In dilute hydrochloric acid medium, at 324.7nm wavelength of atomic absorption spectrometer, air-ethyl
The acetylene flame measures the absorbance of copper.
4.2 Reagents or materials
Unless otherwise specified, only use reagents and distilled or deionized water or equivalent purity water confirmed to be analytically pure in the analysis.
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