GB/T 42439-2023 English PDF

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GB/T 42439-2023: Methods for chemical phase analysis of antimony ore - Determination of antimony content in valentitnite, stibnite and antimonate
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42439-2023	379	Add to Cart	4 days	Methods for chemical phase analysis of antimony ore - Determination of antimony content in valentitnite, stibnite and antimonate	Valid

Basic data

Standard ID: GB/T 42439-2023 (GB/T42439-2023)
Description (Translated English): Methods for chemical phase analysis of antimony ore - Determination of antimony content in valentitnite, stibnite and antimonate
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D40
Classification of International Standard: 73.060
Word Count Estimation: 18,111
Date of Issue: 2023-05-23
Date of Implementation: 2023-09-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42439-2023: Methods for chemical phase analysis of antimony ore - Determination of antimony content in valentitnite, stibnite and antimonate

---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.
ICS 73:060 CCSD40 National Standards of People's Republic of China Antimony ore chemical phase analysis method Determination of antimony content in antimonite, stibnite and antimonate Released on 2023-05-23 2023-09-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Principle 2 5 Reagent or material 2 6 Instruments and equipment 3 7 sample 4 8 Test Step 6 9 Experimental data processing 7 10 Precision 8 11 Quality Assurance and Control 8 Appendix A (Informative) Instrument Reference Working Conditions and Description of Interference 10 Appendix B (informative) Statistical data obtained from interlaboratory test results 11 Reference 13

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 for Standardization Documents" drafting: Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by the Ministry of Natural Resources of the People's Republic of China: This document is under the jurisdiction of the National Natural Resources and Land Spatial Planning Standardization Technical Committee (SAC/TC93): This document was drafted by: Shaanxi Provincial Institute of Geology and Mineral Resources Experimental Research Co:, Ltd:, China Academy of Natural Resource Economics: The main drafters of this document: Xiong Ying, Dong Yani, Pei Ruohui, Deng Ling, Guo Juquan, Zhao Guojun, Cui Changzheng, Mou Naicang, Lei Yinling, Xie Guangjin, Li Qingcui, Liu Yang:

Introduction

There are more than a hundred kinds of minerals or antimony-containing minerals that appear in nature, but they have industrial utilization value and antimony minerals containing more than 20% antimony There are only 10 species, namely stibnite (containing 71:69% of antimony), stibnite (containing 83:3% of antimony), antimonite (containing 83:3% of antimony), and antimony ocher (containing 74% of antimony~ 79%), yellow antimonite (containing 74:5% antimony), thionite (containing 75:2% antimony), natural antimony (containing 100% antimony), thimroxite (containing 51:6% antimony), brittle Styroitite (35:5% antimony), tetrahedrite (25% antimony): Among them, stibnite is the most important mineral raw material for antimony beneficiation and smelting: Antimony ore is one of the advantageous mineral resources in our country: It has abundant reserves, many ore deposits, large scale and concentrated distribution: The reserves and output both rank first in the world: The reserve composition of the industrial type of antimony ore is dominated by single antimony sulfide deposits, accounting for 67% of the total national antimony reserves: In order to better evaluate and develop To utilize antimony ore resources, it is necessary to find out the chemical phase composition of antimony ore and establish a chemical phase analysis method suitable for the main types of antimony ore in my country: antimony ore The chemical phase of rock is usually divided into three types: antimony oxides (antimonite and stibnite, etc:), antimony sulfides (stibnite) and antimonites (stibnite, etc:) mineral phase: Existing analysis methods only give principled separation process, but do not give specific requirements for measurement methods and conditions, which affect the standard use and Comparability of test results: This document is based on the phase analysis of antimony ore in the third volume of "Rock and Mineral Analysis" (Fourth Edition) 45:7: The conditions for the selective separation of mineral phases were optimized, and modern analytical testing techniques were applied to the chemical phase analysis of antimony ores, which improved the chemical phase analysis: The establishment of this document provides technical support for the exploration, development and utilization of antimony ore: Antimony ore chemical phase analysis method Determination of antimony content in antimonite, stibnite and antimonate Caution --- Personnel using this document should have practical experience in formal laboratory work: This document does not address all possible security issues question: It is the user's responsibility to take appropriate safety and health measures and ensure compliance with the conditions stipulated in the relevant national laws and regulations:

1 Scope

This document describes the selective dissolution and separation of chemical reagents - inductively coupled plasma optical emission spectrometry (ICP-OES) or atomic absorption spectrometry Spectroscopic method (AAS) and titration method (VOL) were used to determine the antimony content in antimonite (including stibnite), antimonite and antimonate in antimony ore, respectively: This document is applicable to the determination of antimony content in antimonite, stibnite and antimonate in primary ore and oxide ore in monoantimony sulfide ore type: Note 1: Monoantimony sulfide ore is a kind of antimony ore with high antimony grade, mainly stibnite, which is easy to mine, select and smelt: Note 2: Primary ore is the natural type of antimony ore, and the oxidation rate of antimony in the ore is less than 30%: Note 3: Oxide ore is a natural type of antimony ore, and the oxidation rate of antimony in the ore is greater than 50%: The detection limits and measurement ranges of antimony ore chemical phase analysis methods are shown in Table 1: Table 1 Detection limits and measurement ranges of antimony ore chemical phase analysis methods antimony mineral phase ICP-OES AAS VOL Detection Limit Upper Assay a Detection Limit Upper Assay b Detection Limit Lower Assay Antimony in antimony 0:022 8 0:049 20 - - Antimony in stibnite 0:029 20 0:052 50 0:15 0:45 Antimony in antimonate 0:053 4 0:088 10 0:15 0:45 The upper limit of the antimony content in the chemical phase of the antimony ore determined by aICP-OES is the highest mass concentration ρ(Sb)=16μg/mL, the minimum 0:2g sample weight, sample solution 100mL, 250mL and 50mL diluted 10 times calculation: b The upper limit of the antimony content of antimony ore chemical phase determined by AAS is according to the calibration working curve linear range, the highest mass concentration ρ(Sb)=40μg/mL, the minimum is 0:2g The sample volume is calculated by diluting 10 times of the sample solution 100mL, 250mL and 50mL:

2 Normative references

The content in the following documents constitutes the essential provisions of this document through normative references in the text, among which, the dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 6682 Analytical laboratory water specifications and test methods GB/T 15925 Antimony ore chemical analysis methods Determination of antimony content GB/T 36244 Inductively Coupled Plasma Atomic Emission Spectrometer ......

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