CN110346320A - A kind of method of sulfur content in measurement witherite - Google Patents
A kind of method of sulfur content in measurement witherite Download PDFInfo
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- CN110346320A CN110346320A CN201910658008.XA CN201910658008A CN110346320A CN 110346320 A CN110346320 A CN 110346320A CN 201910658008 A CN201910658008 A CN 201910658008A CN 110346320 A CN110346320 A CN 110346320A
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- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 title claims abstract description 102
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 93
- 239000011593 sulfur Substances 0.000 title claims abstract description 86
- 238000005259 measurement Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
- GJEAMHAFPYZYDE-UHFFFAOYSA-N [C].[S] Chemical compound [C].[S] GJEAMHAFPYZYDE-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000002360 preparation method Methods 0.000 claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000006698 induction Effects 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims description 44
- 239000003795 chemical substances by application Substances 0.000 claims description 30
- 239000002893 slag Substances 0.000 claims description 29
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 12
- 229910052721 tungsten Inorganic materials 0.000 claims description 12
- 239000010937 tungsten Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 239000005864 Sulphur Substances 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 229910052573 porcelain Inorganic materials 0.000 claims description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 3
- 239000011707 mineral Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 229910052571 earthenware Inorganic materials 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000003723 Smelting Methods 0.000 abstract description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Inorganic materials [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 5
- 238000009628 steelmaking Methods 0.000 description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- CSSYLTMKCUORDA-UHFFFAOYSA-N barium(2+);oxygen(2-) Chemical compound [O-2].[Ba+2] CSSYLTMKCUORDA-UHFFFAOYSA-N 0.000 description 3
- 239000004571 lime Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- AYJRCSIUFZENHW-DEQYMQKBSA-L barium(2+);oxomethanediolate Chemical group [Ba+2].[O-][14C]([O-])=O AYJRCSIUFZENHW-DEQYMQKBSA-L 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- YQCIWBXEVYWRCW-UHFFFAOYSA-N methane;sulfane Chemical compound C.S YQCIWBXEVYWRCW-UHFFFAOYSA-N 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N2001/2893—Preparing calibration standards
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a kind of methods of sulfur content in measurement witherite, the method application high frequency infrared ray carbon sulphur analyser measures sulfur content using high-frequency induction burning-infrared absorption, specifically includes the following steps: preparing measurement spare unit, measure sulfur content blank value, high frequency infrared ray carbon sulphur analyser calibration, sampling and sample preparation, prepare sample, measure the sulfur content in witherite powder sample to be measured.The operating condition of instrument is as follows: measuring flow 3 ± 0.5 liters/min, 0.2~0.4MPa of oxygen pressure, power 0.2~0.4MPa of atmospheric pressure, minimum analysis time 60s.Reproducibility, the accuracy of measurement result of the present invention are preferable, solve the measurement problem of sulfur content in witherite, provide reliable technical guarantee for the control of smelting iron and steel quality.
Description
Technical field
The invention belongs to quantitative elementary analysis technical fields, and in particular to a kind of side for measuring sulfur content in witherite
Method.
Background technique
In pneumatic steelmaking, dephosphorization is one of main task of steelmaking process, although phosphorus can improve the intensity of steel, with
The increase of phosphorus content, the plasticity and toughness of steel reduce, so that steel is had " cold brittleness ", active lime is commonly used as dephosphorization
Agent.With the continuous exploration that people utilize new technology, new material, part of the manufacturer explores use and part is added in active lime
Witherite is as steel-making Dephosphorising agent.Witherite main component is barium carbonate, and barium carbonate is decomposed into barium monoxide, barium monoxide at 1297 DEG C
It is to improve effective basic anhydride of slag system basicity, and high alkalinity is the advantage of dephosphorization, barium monoxide can substantially reduce slag
The activity of middle P2O5 improves the phosphate capacity of slag, therefore part witherite is added in active lime as steel-making Dephosphorising agent dephosphorization effect
Fruit is preferable.Element sulphur is harmful element in steel, and sulphur can take in molten steel with the addition of witherite in witherite, accurate thus to survey
It is most important to determine sulfur content in witherite.
The ingredient and weight percent content of witherite are as follows: BaO:30~40%, SiO2: 20~30%, CaO:10~20%, S
0.50~2%.The analysis of sulfur content generallys use high-frequency induction burning-infrared absorption, and this method has accurately and rapidly
Feature, but there is presently no utilize sulfur content method standard in the method detection witherite.Witherite is powdered form, thus how
Select suitable flux material, it is ensured that sulphur discharges particularly important completely, how to determine the work item of high frequency infrared ray carbon sulphur analyser
Part there is no final conclusion；For witherite without national standard sample, how to find substitution standard specimen is a difficult point.Therefore, how Accurate Determining is malicious
Sulfur content is a current problem in scheelite.
Summary of the invention
It is an object of the invention to propose a kind of method of sulfur content in efficiently and accurately, easily to operate measurement witherite,
Solve the measurement problem of sulfur content in witherite.
The technical scheme is that a kind of method for measuring sulfur content in witherite, using high frequency-infrared analysis of carbon and sulfur
Instrument measures sulfur content using high-frequency induction burning-infrared absorption, and the operating condition of instrument is as follows: measuring flow 3 ± 0.5
Liter/min, 0.2~0.4MPa of oxygen pressure, power 0.2~0.4MPa of atmospheric pressure, minimum analysis time 60s；Including following step
It is rapid: to prepare measurement spare unit, measure sulfur content blank value, high frequency infrared ray carbon sulphur analyser calibration, sampling and sample preparation, preparation examination
Material, measures the sulfur content in witherite powder sample to be measured, the specific steps are as follows:
1 spare unit used in continuous mode are as follows:
1.1 barium carbonates: benchmark is pure；
1.2 standard substance blast furnace slags are as follows by the weight ratio preparation standard substance of 7+3 with benchmark barium carbonate:
First standard substance: blast furnace slag YSBC28851-98, sulfur content 1.03%, sulfur content is 0.72% after preparation；
Second standard substance: blast furnace slag BH191-1, sulfur content 0.55%, sulfur content is 0.39% after preparation；
Third standard substance: blast furnace slag BH191-2, sulfur content 1.56%, sulfur content is 1.09% after preparation；
1.3 porcelain crucibles: PT type ￠ 25mm × 25mm；
1.4 high-purity tungsten particle fluxing agents: C:< 0.0008%, S:< 0.0005%；
1.5 super-low sulfur blank value pure iron fluxing agents: C:< 0.0005%, S:< 0.0005%；
2 measurement sulfur content blank values: environmental condition are as follows: indoor relative humidity is not more than 60%；
2.1 measurement pure iron fluxing agents, high-purity tungsten particle fluxing agent sulfur content blank value: it is measured using high frequency infrared ray carbon sulphur analyser pure
Iron fluxing agent, high-purity tungsten particle fluxing agent sulfur content blank value, blank value input high frequency-infrared carbon sulphur analyzer, in calibration high frequency-infrared
It is deducted automatically when carbon and sulfur analytical instrument；
The calibration of 3 high frequency infrared ray carbon sulphur analysers:
3.1 are calibrated using the first standard substance: the first standard substance being put into high frequency infrared ray carbon sulphur analyser, by high frequency-infrared carbon
The selected operating condition of sulphur content analyzer measures the sulfur content of the first standard substance, obtains the first standard substance sulfur content
Measured value calibrates high frequency infrared ray carbon sulphur analyser according to the sulfur content standard value of known first standard substance；
3.2 measurement standard substances: being respectively put into high frequency infrared ray carbon sulphur analyser for second and third standard substance, red by high frequency
The selected operating condition of outer carbon and sulfur analytical instrument measures the sulfur content of second and third standard substance, obtains second and third
The measured value of standard substance sulfur content, second and the measured value of third standard substance sulfur content should fall within the scope of its tolerance；
If second and third standard substance sulfur content measured value it is undesirable, then repeat, until second and third standard substance
Until the measured value of sulfur content is fallen within the scope of its tolerance；
4 samplings and sample preparation: the witherite powder to be measured that client is provided is according to GB/T2007.2 mineral products sampling in bulk, sample preparation
The requirement of general rule craft method for making sample is sampled and sample preparation, obtains witherite powder sample to be measured；
5 prepare sample: weighing the sample that quality is 0.2g from the witherite powder sample to be measured that sample preparation obtains, be accurate to
0.0001, instrument automatic input sample quality is subsequently placed in porcelain crucible, and 0.5 scholar's 0.05g pure iron fluxing agent is added, adds
The high-purity tungsten particle fluxing agent of 1.5~1.7g mixes with sample and constitutes sample；
Sulfur content in 6 measurement witherite powder samples to be measured: sample is put into high frequency infrared ray carbon sulphur analyser, by high frequency-infrared
The selected operating condition of carbon and sulfur analytical instrument, carries out sulfur content measurement, obtains measured value.
Compared with prior art, the invention has the following advantages:
1. solving the problems, such as witherite Unmarked word.For witherite without national standard sample, blast furnace slag body is similar with witherite,
But BaO is free of in blast furnace slag, therefore a certain amount of benchmark barium carbonate is added in blast furnace slag national standard sample as standard sample
High frequency infrared ray carbon sulphur analyser is calibrated and is verified；
2. the best operating condition of instrument has been determined；
3. being tested by fluxing agent, best fluxing agent is selected, so that sulphur in fluxing agent be made to discharge completely, has improved the tool of measurement
Body embodiment.
The method of the present invention is easy to operate, quick, and reproducibility, the accuracy of measurement result are preferable, solves sulphur in witherite
The measurement problem of content provides reliable technical guarantee for the control of smelting iron and steel quality.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated, but the present invention is limited in any way,
Based on present invention teach that it is made it is any transform or replace, all belong to the scope of protection of the present invention.
Embodiment 1
1, the spare unit used in continuous mode are as follows:
1.1 barium carbonates: benchmark is pure；
1.2 standard substance blast furnace slags are as follows by the weight ratio preparation standard substance of 7+3 with benchmark barium carbonate:
First standard substance: blast furnace slag YSBC28851-98, sulfur content 1.03%, sulfur content is 0.72% after preparation；
Second standard substance: blast furnace slag BH191-1, sulfur content 0.55%, sulfur content is 0.39% after preparation；
Third standard substance: blast furnace slag BH191-2, sulfur content 1.56%, sulfur content is 1.09% after preparation；
1.3 porcelain crucibles: PT type ￠ 25mm × 25mm；
1.4 high-purity tungsten particle fluxing agents: C:< 0.0008%, S:< 0.0005%；
1.5 super-low sulfur blank value pure iron fluxing agents: C:< 0.0005%, S:< 0.0005%；
The instrument used in continuous mode is CS-3000 (Beijing nanogram) high frequency infrared ray carbon sulphur analyser.Instrument operating condition
Are as follows: measuring flow 3.5L/min, oxygen pressure 0.30MPa, power atmospheric pressure 0.38MPa, analysis time 60s.Environmental condition are as follows:
Indoor relative humidity 45%.
2, sulfur content blank value is measured:
Using high frequency infrared ray carbon sulphur analyser measurement pure iron fluxing agent blank value be S:0.00005%, high-purity tungsten particle fluxing agent sulphur contains
Amount blank value is S:0.00005%, and blank value is inputted high frequency infrared ray carbon sulphur analyser, in calibration high frequency infrared ray carbon sulphur analyser
Shi Zidong is deducted；
The calibration of 3 high frequency infrared ray carbon sulphur analysers:
3.1 are calibrated using the first standard substance: blast furnace slag YSBC28851-98(is prepared) it is put into high frequency-infrared analysis of carbon and sulfur
Instrument, by high frequency infrared ray carbon sulphur analyser select operating condition to blast furnace slag YSBC28851-98(prepare) sulfur content carry out
Measurement, obtain blast furnace slag YSBC28851-98(preparation) sulfur content measured value be 0.75%, according to known blast furnace slag
YSBC28851-98(prepare) sulfur content standard value 0.72% high frequency infrared ray carbon sulphur analyser is calibrated；
3.2 measurement standard substances: blast furnace slag BH191-1(is prepared) and blast furnace slag BH191-2(preparation) it is respectively put into high frequency
Infrared carbon sulfur analyzer prepares BH191-1(by the operating condition that high frequency infrared ray carbon sulphur analyser is selected) and blast furnace slag
BH191-2(prepare) sulfur content measure, obtain blast furnace slag BH191-1(preparation) and blast furnace slag BH191-2(preparation) sulphur
The measured value of content, blast furnace slag BH191-1(prepare) and blast furnace slag BH191-2(prepare) measured value be 0.38%, 1.09%,
It has fallen within the scope of tolerance；
4 samplings and sample preparation: witherite powder to be measured is made by hand according to GB/T2007.2 mineral products sampling in bulk, sample preparation general rule
The requirement of quadrat method is sampled and sample preparation；
5 prepare sample: weighing the sample that quality is 0.2g from the witherite powder sample to be measured that sample preparation obtains, be accurate to
0.0001, instrument automatic input sample quality is subsequently placed in porcelain crucible, and 0.51g pure iron fluxing agent is added, adds 1.6g high
Pure tungsten grain fluxing agent mixes with sample and constitutes sample；
Sulfur content in 6 measurement witherite powder samples to be measured: sample is put into high frequency infrared ray carbon sulphur analyser, by high frequency-infrared
The selected operating condition of carbon and sulfur analytical instrument, carries out sulfur content measurement, and obtaining measured value is 1.021.
Repeat step 5 and step 6, respectively obtain measured value be 1.015,1.021,1.035,1.030,1.026,1.030,
1.024,1.015.9 tests are obtained into measured value statistical analysis, respectively obtain average value and the relative standard of statistical survey value
Deviation, as shown in the table.
Witherite testing result
| Detection elements | 9 measured values | Detect average value % | Relative standard deviation % |
| S | 1.021、1.015、1.021、1.035、1.030、1.026、1.030、1.024、1.015 | 1.02 | 0.63 |
It can be seen that by embodiment, measuring method stability provided by the invention is preferable, the content suitable for measuring sulphur witherite.
Claims (4)
1. it is a kind of measurement witherite in sulfur content method, using high frequency infrared ray carbon sulphur analyser, using high-frequency induction burning-it is red
Outside line absorption process, it is characterised in that the following steps are included: preparing measurement spare unit, measure sulfur content blank value, high frequency-infrared carbon
The calibration of sulphur content analyzer, sampling and sample preparation, prepare sample, measure the sulfur content in witherite powder sample to be measured, specific steps are such as
Under:
1) prepare measurement spare unit: benchmark barium carbonate；First standard substance；Second standard substance；Third standard substance；Porcelain earthenware
Crucible；High-purity tungsten particle fluxing agent；Super-low sulfur blank value pure iron fluxing agent；
2) it measures sulfur content blank value: measuring pure iron fluxing agent, high-purity tungsten particle fluxing agent sulphur using high frequency infrared ray carbon sulphur analyser
Content blank value, blank value input high frequency infrared ray carbon sulphur analyser, deduct automatically when calibrating high frequency infrared ray carbon sulphur analyser；
3) high frequency infrared ray carbon sulphur analyser is calibrated:
3.1) it is calibrated using the first standard substance: the first standard substance being put into high frequency infrared ray carbon sulphur analyser, by high frequency-infrared
The selected operating condition of carbon and sulfur analytical instrument measures the sulfur content of the first standard substance, obtains the first standard substance sulfur content
Measured value, high frequency infrared ray carbon sulphur analyser is calibrated according to the sulfur content standard value of known first standard substance；
3.2) it measures standard substance: second and third standard substance is respectively put into high frequency infrared ray carbon sulphur analyser, it is red by high frequency
The selected operating condition of outer carbon and sulfur analytical instrument measures the sulfur content of second and third standard substance, obtains second and third
The measured value of standard substance sulfur content, second and the measured value of third standard substance sulfur content should fall within the scope of its tolerance；
If second and third standard substance sulfur content measured value it is undesirable, repeat, until second and third standard substance
Until the measured value of sulfur content is fallen within the scope of its tolerance；
4) sampling and sample preparation: witherite powder to be measured is by hand according to GB/T2007.2 mineral products sampling in bulk, sample preparation general rule
The requirement of method for making sample is sampled and sample preparation, obtains witherite powder sample to be measured；
5) it prepares sample: weighing sample from the witherite powder sample to be measured that sample preparation obtains, be accurate to 0.0001, instrument is automatic
Typing sample quality, is subsequently placed in porcelain crucible, and pure iron fluxing agent is added, adds high-purity tungsten particle fluxing agent, mixes with sample
Constitute sample；
6) it measures the sulfur content in witherite powder sample to be measured: sample is put into high frequency infrared ray carbon sulphur analyser, it is red by high frequency
The selected operating condition of outer carbon and sulfur analytical instrument, carries out sulfur content measurement, obtains measured value.
2. measuring the method for sulfur content in witherite as described in claim 1, it is characterised in that barium carbonate: benchmark is pure；Standard
Substance: standard substance is prepared by the weight ratio of 7+3 with blast furnace slag and benchmark barium carbonate；First standard substance: blast furnace slag
YSBC28851-98, sulfur content 1.03%, sulfur content is 0.72% after preparation；Second standard substance: blast furnace slag BH191-1,
Sulfur content is 0.55%, and sulfur content is 0.39% after preparation；Third standard substance: blast furnace slag BH191-2, sulfur content 1.56%,
Sulfur content is 1.09% after preparation；Porcelain crucible: PT type ￠ 25mm × 25mm；High-purity tungsten particle fluxing agent: C:< 0.0008%, S:<
0.0005%；Super-low sulfur blank value pure iron fluxing agent C:< 0.0005%, S:< 0.0005%.
3. measuring the method for sulfur content in witherite as described in claim 1, it is characterised in that high frequency infrared ray carbon sulphur analyser
Operating condition it is as follows: measuring flow 3 ± 0.5 liters/min, 0.2~0.4Mpa of oxygen pressure, power atmospheric pressure 0.2~
0.4MPa, minimum analysis time 60s, indoor relative humidity are not more than 60%.
4. measuring the method for sulfur content in witherite as described in claim 1, it is characterised in that added witherite powder to be measured
Sample quality is 0.2g, and pure iron fluxing agent quality is 0.5 ± 0.05g, and high-purity tungsten particle fluxing agent quality is 1.5~1.7g.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189295A (en) * | 2020-11-10 | 2021-07-30 | 中国航发北京航空材料研究院 | Sulfur-containing standard substance and preparation method and application thereof |
| CN113219148A (en) * | 2020-11-10 | 2021-08-06 | 中国航发北京航空材料研究院 | Carbon-containing standard substance and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046510A (en) * | 1989-11-28 | 1990-10-31 | 重庆天原化工厂 | Method with witherite mineral powder's refined brine |
| CN101975760A (en) * | 2010-10-08 | 2011-02-16 | 中国航空工业集团公司北京航空材料研究院 | Method for measuring sulfur content in powdered high-temperature alloy |
| CN105823748A (en) * | 2016-03-17 | 2016-08-03 | 武钢集团昆明钢铁股份有限公司 | Method for measuring sulfur content of slag melting flux |
| CN106706549A (en) * | 2017-02-28 | 2017-05-24 | 武钢集团昆明钢铁股份有限公司 | Method for determining carbon content in slag fluxing agent |
-
2019
- 2019-07-20 CN CN201910658008.XA patent/CN110346320A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1046510A (en) * | 1989-11-28 | 1990-10-31 | 重庆天原化工厂 | Method with witherite mineral powder's refined brine |
| CN101975760A (en) * | 2010-10-08 | 2011-02-16 | 中国航空工业集团公司北京航空材料研究院 | Method for measuring sulfur content in powdered high-temperature alloy |
| CN105823748A (en) * | 2016-03-17 | 2016-08-03 | 武钢集团昆明钢铁股份有限公司 | Method for measuring sulfur content of slag melting flux |
| CN106706549A (en) * | 2017-02-28 | 2017-05-24 | 武钢集团昆明钢铁股份有限公司 | Method for determining carbon content in slag fluxing agent |
Non-Patent Citations (1)
| Title |
|---|
| 张伟杰: "采用基准物质进行高频燃烧—红外吸收测定碳硫校准问题的探讨", 《上海钢研》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189295A (en) * | 2020-11-10 | 2021-07-30 | 中国航发北京航空材料研究院 | Sulfur-containing standard substance and preparation method and application thereof |
| CN113219148A (en) * | 2020-11-10 | 2021-08-06 | 中国航发北京航空材料研究院 | Carbon-containing standard substance and preparation method and application thereof |
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