CN103575691A - Method for rapidly judging quality of fluorite - Google Patents
Method for rapidly judging quality of fluorite Download PDFInfo
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- CN103575691A CN103575691A CN201310607232.9A CN201310607232A CN103575691A CN 103575691 A CN103575691 A CN 103575691A CN 201310607232 A CN201310607232 A CN 201310607232A CN 103575691 A CN103575691 A CN 103575691A
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Abstract
The invention discloses a method for rapidly judging the quality of fluorite. The percentage composition of a carbon element in the fluorite is rapidly analyzed and detected by a commonly-used instrumental analysis method; carbon is measured by a high-frequency infrared absorption method; whether a standard is met is judged effectively according to carbon limit values in designations of the fluorite specified in a national standard. The method can rapidly and effectively judge the quality of the fluorite under a high-efficiency production rhythm at present; the use quality of a raw material is ensured; a material meeting a standard can be selected prior to use; the transport and docking cost of a material required in product production is lowered; the quality control of the raw material is achieved.
Description
Technical field
The invention belongs to the detection method of fluorite in a kind of flux for metallurgy, particularly a kind of method of quick judgement fluorite quality.
Background technology
The principal ingredient of fluorite is calcium fluoride, also contains the impurity such as silicon dioxide, calcium carbonate, magnesium carbonate, phosphorus, sulphur in fluorite, and fluorite is used in steel and iron industry in a large number as a kind of important flux for metallurgy.Judge whether fluorite quality is adulterated in other words, traditional way is the Calcium Fluoride Content of measuring in fluorite.Due to the assay method GB/T 5195.1-2006 complex operation of Calcium Fluoride Content in fluorite, detection time is long.At present, in the analyzing and testing of daily fluorite, the general method with measuring full calcium, is directly converted into Calcium Fluoride Content.Along with fluorite price is unprecedentedly soaring, part producing business mixes certain cheap mineral in fluorite in recent years, makes the remarkable higher ，Gei of the Calcium Fluoride Content measured enterprise cause economic loss.Although if measure Calcium Fluoride Content according to GB/T 5195.1-2006, can judge whether fluorite meets standard, too loaded down with trivial details.Detection method adopts CaF2 content to convert and get by CaO analytical approach substantially at present, but the price variance between pure fluorite and lime stone causes a lot of suppliers to utilize lime stone to adulterate; Under these circumstances, we adopt existing detection method to judge, detection efficiency is low, it is loaded down with trivial details to operate.
Summary of the invention
The technical matters of solution of the present invention is, provide a kind of conventional instrument analytical method express-analysis to detect the percentage composition of carbon in fluorite, utilize method of high frequency IR-absorption carbon, according to carbon containing limit value in each label of GB regulation fluorite, effectively determine whether and meet enterprise technology requirement.Therefore for Fluorite Characteristics element, can be judged to be carbon.And then judge fast fluorite requisite quality situation according to the height of the percentage composition element of this characteristic element.
For above-mentioned technical matters, the present invention by the following technical solutions, a kind of method of quick judgement fluorite quality, its method step is as follows:
1, get carbon-sulfur crucible, in carbon-sulfur crucible bottom successively place mat pure iron fluxing agent and pure iron fluxing agent;
2, in step 1, be covered with flux carbon-sulfur crucible middle berth and enter fluorite powder test portion;
3, on fluorite powder test portion, with pure tungsten flux, cover;
4, carbon-sulfur crucible is put into high-frequency combustion Infrared Carbon-sulphur instrument and analyzed, and read the carbon content of analysis result;
5, analysis result is carried out to technical indicator standard and contrast, by the technical indicator of detected carbon content and regulation, compare, judge fluorite quality.
In described step 1, the pure iron fluxing agent of place mat is that 0.3500 ~ 0.4500g, pure tin flux are 0.0800～0.1500g.
Described fluorite powder test portion is 0.1500～0.2800g.
Described pure tungsten flux is 1.2000～1.8000g.
The obtained beneficial effect of the present invention is, under rhythm of production, can judge fast and effectively fluorite quality efficiently at present, guarantee raw-material using character, can just select before use standard compliant material simultaneously, reduce the transportation of material requested in production and stopped cost, accomplished raw-material quality control.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
embodiment 1:a method for quick judgement fluorite quality, its method step is as follows:
1, get carbon-sulfur crucible, take pure iron fluxing agent, the 0.1000g pure tin flux shop fixtures of 0.4000g;
2, the fluorite powder test portion (powdered sample that censorship unit prepares) that takes 0.2000g is in being equipped with in advance flux carbon-sulfur crucible;
3, taking 1.5000g pure tungsten flux covers again;
4, the carbon-sulfur crucible that installs sample is put into high-frequency combustion Infrared Carbon-sulphur instrument and carried out automatic analysis, on instrument, directly read the carbon content of this sample;
5, carry out technical indicator and contrast, utilize detected carbon content to contrast with the technical indicator of regulation, judge fluorite quality.
embodiment 2:a method for quick judgement fluorite quality, its method step is as follows:
1, get carbon-sulfur crucible, take pure iron fluxing agent, the 0.1200g pure tin flux shop fixtures of 0.3800g;
2, the fluorite powder test portion (powdered sample that censorship unit prepares) that takes 0.2500g is in being equipped with in advance flux carbon-sulfur crucible;
3, taking 1.3000g pure tungsten flux covers again;
4, the carbon-sulfur crucible that installs sample is put into high-frequency combustion Infrared Carbon-sulphur instrument and carried out automatic analysis, on instrument, directly read the carbon content of this sample;
5, carry out technical indicator and contrast, utilize detected carbon content to contrast with the technical indicator of regulation, judge fluorite quality.
embodiment 3:a method for quick judgement fluorite quality, its method step is as follows:
1, get carbon-sulfur crucible, take pure iron fluxing agent, the 0.0950g pure tin flux shop fixtures of 0.4200g;
2, the fluorite powder test portion (powdered sample that censorship unit prepares) that takes 0.1800g is in being equipped with in advance flux carbon-sulfur crucible;
3, taking 1.6500g pure tungsten flux covers again;
4, the carbon-sulfur crucible that installs sample is put into high-frequency combustion Infrared Carbon-sulphur instrument and carried out automatic analysis, on instrument, directly read the carbon content of this sample;
5, carry out technical indicator and contrast, utilize detected carbon content to contrast with the technical indicator of regulation, judge fluorite quality.
Determination step of the present invention is as follows:
1, utilize infrared absorption determining to go out carbon element content in fluorite;
2, in reference standard YB/T5217-2005, CaCO3 content in fluorite fine powder is not more than to 1.5% and is scaled carbon content and is not more than 0.18%, determine a carbon content limited range.
3, the carbon content going out according to practical measurement and applying unit technical requirement effectively contrast, and judge that whether it is as qualified.
4, by characteristic element percentage calculation formula, calculate the number percent of Fluorite Characteristics element.
Characteristic element percentage calculation formula is as follows:
Characteristic element number percent=(A-0.18) * k;
In formula: A---the percentage composition of practical measurement characteristic element;
0.18---the high-load of characteristic element existing in the Natural Fluorite sample stipulated in standard YB/T5217-2005;
The percentage composition of K---characteristic element is scaled the reduction coefficient of " Calcium Fluoride Content of characteristic element ".
Utilize this method at random the fluorite of different batches to be detected, its result is as follows:
Table one, part fluorite carbon content detect
| Numbering | CaF2% | C% | CaO% | C is converted into CaF2 content | True CaF2 content | Difference | Result of determination |
| 1 | 82.42 | 1.06 | 4.95 | 6.89 | 75.53 | 6.89 | Not up to standard |
| 2 | 81.03 | 0.07 | 0.33 | 0.46 | 80.58 | 0.45 | Up to standard |
| 3 | 71.75 | 0.53 | 2.47 | 3.45 | 68.31 | 3.44 | Not up to standard |
| 4 | 80.75 | 0.02 | 0.09 | 0.13 | 80.62 | 0.13 | Up to standard |
| 5 | 84.6 | 0.37 | 1.73 | 2.41 | 82.20 | 2.41 | Not up to standard |
| 6 | 85.3 | 0.14 | 0.65 | 0.91 | 84.39 | 0.91 | Up to standard |
| 7 | 69.75 | 0.10 | 0.47 | 0.65 | 69.10 | 0.65 | Up to standard |
| 8 | 82.88 | 0.02 | 0.09 | 0.13 | 82.75 | 0.13 | Up to standard |
| 9 | 82.85 | 0.06 | 0.28 | 0.39 | 82.46 | 0.39 | Up to standard |
| 10 | 80.15 | 0.17 | 0.79 | 1.11 | 79.05 | 1.11 | Up to standard |
| 11 | 85.81 | 0.03 | 0.14 | 0.20 | 85.62 | 0.19 | Up to standard |
| 12 | 84.62 | 0.03 | 0.14 | 0.20 | 84.43 | 0.19 | Up to standard |
In fluorite standard, stipulate that the percentage composition of certain characteristic element is between 0-0.18%.
Therefore percentage composition that can this characteristic element of fast detecting according to this analysis method, if can think fluorite quality dissatisfaction when the percentage composition of this characteristic element is greater than 0.18% in sample fluorite.We are converted to chemical theory the degree that " Calcium Fluoride Content of characteristic element " can judge requisite quality by the percentage composition of this characteristic element simultaneously.
Claims (4)
1. judge fast a method for fluorite quality, it is characterized in that, its method step is as follows:
1) get carbon-sulfur crucible, in carbon-sulfur crucible bottom successively place mat pure iron fluxing agent and pure iron fluxing agent;
2) in step 1, be covered with flux carbon-sulfur crucible middle berth and enter fluorite powder test portion;
3) on fluorite powder test portion, with pure tungsten flux, cover;
4) carbon-sulfur crucible is put into high-frequency combustion Infrared Carbon-sulphur instrument and analyzed, and read the carbon content of analysis result;
5) analysis result is carried out to technical indicator standard and contrast, by the technical indicator of detected carbon content and regulation, compare, judge fluorite quality.
2. the method for quick judgement fluorite quality as claimed in claim 1, is characterized in that, in described step 1, the pure iron fluxing agent of place mat is that 0.3500 ~ 0.4500g, pure tin flux are 0.0800～0.1500g.
3. the method for quick judgement fluorite quality as claimed in claim 1, is characterized in that, described fluorite powder test portion is 0.1500～0.2800g.
4. the method for quick judgement fluorite quality as claimed in claim 1, is characterized in that, described pure tungsten flux is 1.2000～1.8000g.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106932355A (en) * | 2015-12-31 | 2017-07-07 | 中核北方核燃料元件有限公司 | Carbon element content analysis method in WABA pellets |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639443A (en) * | 2009-07-16 | 2010-02-03 | 武汉钢铁(集团)公司 | Method for rapidly and accurately determining sulphur element content in fluorite |
| WO2012137480A1 (en) * | 2011-04-04 | 2012-10-11 | 信越化学工業株式会社 | Method for measuring carbon concentration in polycrystalline silicon |
| CN103226102A (en) * | 2013-03-19 | 2013-07-31 | 日照钢铁控股集团有限公司 | Method for determining total sulfur in fluorite |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101639443A (en) * | 2009-07-16 | 2010-02-03 | 武汉钢铁(集团)公司 | Method for rapidly and accurately determining sulphur element content in fluorite |
| WO2012137480A1 (en) * | 2011-04-04 | 2012-10-11 | 信越化学工業株式会社 | Method for measuring carbon concentration in polycrystalline silicon |
| CN103226102A (en) * | 2013-03-19 | 2013-07-31 | 日照钢铁控股集团有限公司 | Method for determining total sulfur in fluorite |
Non-Patent Citations (4)
| Title |
|---|
| 中华人民共和国国家发展和改革委员会 发布: "《中华人民共和国黑色冶金行业标准YB/T5217-2005萤石》", 30 November 2006 * |
| 张萍: "高频红外法测萤石中硫的研究", 《武汉理工大学学报》 * |
| 苏峥等: "X-射线荧光光谱法与红外吸收法联合测定萤石中氟化钙", 《冶金分析》 * |
| 马淑华: "红外碳硫仪快速测定萤石中碳酸钙", 《山东冶金》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106932355A (en) * | 2015-12-31 | 2017-07-07 | 中核北方核燃料元件有限公司 | Carbon element content analysis method in WABA pellets |
| 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 |
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Application publication date: 20140212 |