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YS/T 1046.4-2015 English PDF

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YS/T 1046.4-2015English169 Add to Cart 3 days [Need to translate] Methods for chemical analysis of copper slag concentrates - Part 4: Determination of iron content - Potassium dichromate titration method Valid YS/T 1046.4-2015


BASIC DATA
Standard ID YS/T 1046.4-2015 (YS/T1046.4-2015)
Description (Translated English) Methods for chemical analysis of copper slag concentrates - Part 4: Determination of iron content - Potassium dichromate titration method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard H13
Classification of International Standard 77.120.60
Word Count Estimation 6,631
Date of Issue 2015-04-30
Date of Implementation 2015-10-01
Regulation (derived from) Ministry of Industry and Information Technology Announcement (2015 No. 28)
Issuing agency(ies) Ministry of Industry and Information Technology of the People's Republic of China
Summary This Standard specifies the method for determination of copper slag concentrate iron content. This Standard applies to the determination of the amount of iron ore slag. Determination of the range of 23.00% ~ 40.00%.


YS/T 1046.4-2015 (Chemical analysis of copper slag concentrates - Part 4. Determination of iron content dichromate method) ICS 77.120.60 H13 People's Republic of China Nonferrous Metals Industry Standard Methods for chemical analysis of copper concentrates Slag Part 4. Determination of iron content Dichromate method Part 4. Determinationofironcontent- Issued on. 2015-04-30 2015-10-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released Foreword YS/T 1046-2015 "copper slag concentrates chemical analysis method" is divided into seven sections. --- Part 1. Determination of copper content iodometry; --- Part 2. Determination of gold and silver atomic absorption spectroscopy and fire assay gravimetric method; --- Part 3. Determination of sulfur content of combustion titration method; --- Part 4. Determination of iron content dichromate method; --- Part 5. Determination of the amount of silica silicon potassium fluoride titration; --- Part 6. aluminum oxide content - Inductively coupled plasma atomic emission spectrometry; --- Part 7. arsenic, antimony, bismuth, lead, zinc, magnesium oxide content - Inductively coupled plasma atomic emission spectrometry. This is Part 4. This section drafted in accordance with GB/T 1.1-2009 given rules. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting unit. Daye Nonferrous Metals Group Holdings Limited, Zhongtiaoshan Nonferrous Metals Group Co., Ltd. This section is drafted. Tongling Nonferrous Metals Group Holdings Limited. It participated in the drafting of this section. Daye Nonferrous Metals Group Holdings Co., Ltd., Beijing General Research Institute of Mining and Metallurgy, Zhongtiaoshan Nonferrous Metals Group Ltd., Yanggu Yoshimitsu Copper Co., Ltd., Hunan Nonferrous Metal Research Institute, Beijing Nonferrous Metal Research Institute. The main drafters of this section. Wang Jinping, Li Qinmei, Zhang Zhao, Xiao-Yan Chen, Liu Yan, Miss Li, FAN Li, Zhang Cai sticks million pairs, Hou Dan, Hung Chen Yun, Chen Lan, Yang Chunlin, Guo Hong, Liu Junxia, Pangwen Lin, Yang Ping. Methods for chemical analysis of copper concentrates Slag Part 4. Determination of iron content Dichromate method 1 Scope YS/T 1046 This section specifies the method for determination of copper slag concentrate iron content. This section applies to the determination of copper slag concentrate iron content. Determination of the range of 23.00% ~ 40.00%. 2 Method summary Sample by the use of hydrochloric acid, nitric acid, sulfuric acid dissolved ammonia - ammonium chloride precipitation of iron and copper substrate separated in hydrochloric acid medium, with stannous chloride reduction Most iron, iron from the remaining small amount of sodium tungstate as an indicator of titanium trichloride reduction diphenylamine sulfonate as indicator with standard potassium dichromate Titration solution was titrated to the end point. 3 Reagents Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. 3.1 ammonium chloride. 3.2 hydrochloric acid (ρ = 1.19g/mL). 3.3 hydrochloride (11). 3.4 hydrochloric acid (595). 3.5 nitric acid (ρ = 1.42g/mL). 3.6 sulfate (ρ = 1.84g/mL). 3.7 phosphoric acid (ρ = 1.69g/mL). 3.8 sulfur nitrate mixed acid (73). A 30mL sulfuric acid (3.6) slowly injected 70mL of nitric acid (3.5) and continue stirring to mix. 3.9 parathion mixed acid. A 150mL sulfuric acid (3.6) slowly into 600mL of water, mix and keep stirring, cooled to room temperature, 150mL Phosphoric acid (3.7) and mix. 3.10 aqueous ammonia (ρ = 0.88g/mL). 3.11 ammonia bath. 10mL ammonia diluted with water (3.10) to 100mL. 3.12 hydrogen peroxide solution (30%). 3.13 saturated solution of ammonium hydrogen fluoride. 3.14 stannous chloride solution (50g/L). Weigh 5g of stannous chloride dissolved in 20mL hot hydrochloric acid (3.2), diluted with water to 100mL, mix uniform. Using now. 3.15 sodium tungstate solution (250g/L). Weigh 25g of sodium tungstate dissolved in an appropriate amount of water, was added 5mL phosphate (3.7), diluted with water to 100mL. 3.16 titanium trichloride solution (110). Pipette 3mL titanium trichloride solution [15% to 20% (volume fraction)], was diluted with hydrochloric acid (3.3) to 30mL. The time is now equipped with. 3.17 iron standard solution (0.025mol/L). Weigh 1.3950g metallic iron (wFe≥99.99%) in 500mL conical beaker in the neck ......

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