GB/T 8151.4-2000 Chemical analysis methods for zinc concentrates - Determination of silicon dioxide content

This standard specifies the method for determining the content of silicon dioxide in zinc concentrate. This standard is applicable to the determination of silicon dioxide content in zinc concentrate. Determination range: 1.00% to 10.00%. GB/T 8151.4-2000 Chemical analysis method for zinc concentrate Determination of silicon dioxide content GB/T8151.4-2000 Standard download decompression password: www.bzxz.net

ILs 73. 060
National Standard of the People's Republic of China
GB/T8151.4—2000
Chemical analysis method of zinc concentrate
Determination of silicon dioxide
Mlcthods for chenmical analysis of zinc eonccntrates-Determination of silicon dioxide content
Mlcthods for chenmical analysis of zinc eonccntrates-Determination of silicon dioxide content
Mlcthods for chenmical analysis of zinc eonccntrates-Determination of silicon dioxide content
Mlcthods for chenmical analysis of zinc eonccntrates-Determination of silicon dioxide content in zinc concentrate2000-02-16Promulgated
Implementation on 2000-08-01Promulgated by the State Administration of Quality and Technical Supervision
G1/a151.4—2000
Revision of GB/T8151.1:1S7 New method for chemical analysis of zinc concentrate-Determination of silicon dioxide content by blue spectrophotometric flowmeter: revision of the above standard,
GE/T II--- ISS3
Standardization work Unit 1: Drafting and presentation of standards Part 1: Authorship of standards
GB/T1.41S88 Standardization work guide for chemical analysis methods GB/T 1467-1588
General principles and general provisions for chemical analysis methods of metallurgical products GE/T7725-1588 General principles for chemical analysis of metallurgical products T17-S Standard Basic technical spectrum of chemical analysis of metallurgical products The standard is withdrawn from the implementation date and replaces B/T8151.4-1:387. The standard is issued by the State Administration of Nonferrous Metals Industry. This standard is under the jurisdiction of the China Nonferrous Metals Industry Standardization and Quality Management Institute. This standard was drafted by Chaolu Changkua Factory. This standard is the first time that the three main authors of this standard are: Liu Xinling, Huang Quansheng. 1
A standard
National standard of the People's Republic of China
Chemical analysis method of zinc concentrate
Determination of silicon dicyanide content
Methuds fur chemical anulyxisIn the vortex, after mixing, the mixture is washed with 10-950℃ hot water, and then placed in a 3-polyethylene beaker. Add 150r: hot water to wash the blocks, cool, dilute with water and store in a plastic bottle. This solution contains 1 mg monoxide. 3.10 SiO2 standard solution: 5 l.ml of the SiO2 standard solution (3.9) is diluted with water to 0 nm. Store in a plastic bottle. This solution contains 1 mg monoxide. 4 Receiver
Spectrophotometer.
Approved by the State Administration of Quality and Technical Supervision on 200C-92-16, implemented on 2000-05-01
5.1 Samples are sieved through 0.1n0mn holes
GB/T $151, 4-2GC0
5.2 Samples are placed in a desiccator in a cold room at luj℃_5, 6 Analysis steps
6. 1 Samples
Weigh the most 9. 33) 0 or sample.
Carry out two independent determinations. Take the average as the estimate. 6.2 Empty H test
Then empty the sample and accept it.
6.3 Determination
6.3.! Place the test cup <6.3m in a pre-heated 2R hydrogen or 3m silver tweezers until the temperature rises to 680℃. Take it out and cool it down. 6.3.2 After washing with water, place the 300mL polyvinyl chloride beaker in a 15mL hot water 20mL (1 day). 2 After the gold is washed out, remove the gold and cool to a low temperature. Transfer the mixture to a 5.5 mL sticky towel and add water to a grid until the mixture is clear. 6.3.3 Collect the mixture and transfer it to a 100L bottle. 6.3.41 Use the technique and transfer (3.3 to adjust the rate. 2L () 3mL water, mL acid and water. Each reagent must be accurate. Place for 1 minute: add 15mL reducing solution and add water to the mark. Place for 1 minute. 6.3.5 Transfer the dissolved part to a 1cm absorbent and allow the material to be separated by air. For each ratio, measure its absorbance at 650nm in the spectrophotometer. From the working curve, the amount of silicon dioxide can be obtained. 6.4 Working curve
6.4.1 Take 0.0.0.1.c, 2.0.3.33, 1,00.5,00mT of silicon dioxide standard liquid and put them in a 133ml bottle respectively. The following is carried out according to 6.5.4
6.4.2 Take a part of the submerged drop of 1cm absorbance and measure its absorbance at the wavelength of 6cm in the spectrophotometer with the reagent room as the diameter: the product is the coordinate and the absorbance pressure is the part mark to draw the working curve: 7 Expression of analysis results
According to formula (1), calculate the sample concentration, S0(%)=n VX\
Wu Zhong:,
The amount of silicon dioxide obtained during the production process, ng; V. ——Total volume of test solution, rL;
V,-the volume of test solution taken per part, r「.
. The mass of the test material,,
The total amount obtained is expressed to one decimal place.
8 The difference between the analysis results of the laboratories is not as listed in Table 1. 100
Silicon dioxide content
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27. 00--10.00
GBT e151, 4—2000
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