CN108663405A - A kind of Oxygen Bomb Combustion quickly measures the detection method of chlorine content in coal - Google Patents
A kind of Oxygen Bomb Combustion quickly measures the detection method of chlorine content in coal Download PDFInfo
- Publication number
- CN108663405A CN108663405A CN201810628140.1A CN201810628140A CN108663405A CN 108663405 A CN108663405 A CN 108663405A CN 201810628140 A CN201810628140 A CN 201810628140A CN 108663405 A CN108663405 A CN 108663405A
- Authority
- CN
- China
- Prior art keywords
- solution
- oxygen bomb
- coal
- people
- beaker
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/22—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on combustion or catalytic oxidation, e.g. of components of gas mixtures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The present invention discloses the detection method that a kind of Oxygen Bomb Combustion quickly measures chlorine content in coal, and step is：1. the combustion boat equipped with sample is put on oxygen bomb frame；2. sodium hydroxide solution is added in oxygen bomb, oxygen is injected into oxygen bomb；3. connecting ignitor；4. after Oxygen Bomb Combustion, collecting test solution in beaker；5. the solution such as sodium hydroxide are added, filtered with qualitative filter paper, places half an hour progress constant-current titration measurement；6. test solution is transferred to beaker, it is put into stirrer, electrode is inserted into, starts blender；7. the beaker for filling blank solution is placed on titration platform, the silver nitrate standard solution of drop people's amount is had determined that with the speed drop people of 0.03mL/s, records silver nitrate standard solution dosage；8. the beaker for filling sample solution is placed on titration platform.People's silver nitrate standard solution is first dripped with the speed of 0.05mL/s, when close to the terminal current potential demarcated, is titrated with 0.02mL/s speed until reaching the terminal current potential of calibration.Stirring 1min writes down silver nitrate standard solution and people is added to measure；9. the calculating of chlorine content in coal.
Description
Technical field
The invention belongs to chemical analysis detection technique fields, and in particular to a kind of Oxygen Bomb Combustion quickly measures chlorine content in coal
Detection method.
Background technology
Chlorine is a kind of nonmetalloid, is located at periodic table of elements period 3 V Group IIA, belongs to one of halogen family.Chlorine is normal
It is yellow green gas under normal temperature and pressure, chemical property is very active, has toxicity.Chlorine is widely present in nature in the form of compound state
It is also significant to the physiological activity of human body in boundary.Chlorine is yellow green gas, and density ratio air is big (3.214g/L),
- 101.0 DEG C of fusing point, -34.4 DEG C of boiling point have strong impulse smell.This also carrys out more serious ask to environment and economy-zone
Topic.So as to develop the detection method of chlorine content in coal, further to control content of Cl element in coal and reduce harmful gas
Body discharges.
At present for the detection of chlorine content in coal, the country is generally measured using high-temperature combustion hydrolytic method, and this method can be with
It preferably adsorbs the chlorine element in producing coal and more accurately measures chlorinity result.In pyrohydrolysis, coal sample and quartz
Sand is mixed and burned, and is transferred in condensed water in a chloride-form, in this process, chlorine cannot adsorb therewith completely in coal, just quilt
Absorbing chlorine may be gone back by the absorption of the substances such as coal ash again, in addition vapor evaporation capacity and oxygen flow can blow away compared with small coal
Sample is affected to test result, is affected to test result.Another problem be exactly experimental period it is longer, in high-temperature water
Combustion hydrolytic 5min is respectively carried out to 300 DEG C, 600 DEG C, 800 DEG C of warm areas in solution preocess, high-temperature region of then making a gift to someone again (1100 DEG C of grades with
On) combustion hydrolytic 15min, 30min, testing efficiency are relatively low in total.High-temperature combustion hydrolytic process cannot be handled in coal sample completely
Chlorinity, and experimental period is tediously long, the final accuracy and efficiency for influencing measurement result.
Invention content
In order to solve the above technical problems, the present invention provides the detection sides that a kind of Oxygen Bomb Combustion quickly measures chlorine content in coal
Method, it is high that content of Cl element measures accurate and testing efficiency.
In order to achieve the above objectives, technical solution of the present invention is as follows：A kind of Oxygen Bomb Combustion quickly measures the inspection of chlorine content in coal
Survey method, feature include the following steps：
Oxygen bomb configuration condition：Halogen resistant element is fluorinated oxygen bomb, and oxygen bomb decomposing system is marked according to DIN51577, DIN/EN14582
Standard makes sample in the oxygen bomb of closed oxygenation, fully burns, decomposites required element or ingredient.And oxygen bomb is by special
The catalyst combination of material, refined stainless steel alloy and automatic regeneration forms, and can prevent oxygen bomb from exploding and hurting operator, energy
Enough ensure that digestion process can be smoothed out, so that sample is reached resolution effect well, can more importantly prevent oxygen bomb in sample
Chlorine element have suction-operated, once oxygen bomb and chlorine element chemically reactive, then can influence measurement result.
Reagent configures
A. chlorination sodium standard solution, the top grade sodium chloride for weighing 0.6596g are put into beaker and are dissolved in a small amount of water, be washed with water into
In 2000mL volumetric flasks and it is diluted to scale, is shaken up, is stored；
B. silver nitrate standard solution (0.01411mol/L), the top grade silver nitrate for weighing 2.3969g are put into beaker and are dissolved in a small amount of
In water, it is washed with water in 1000mL volumetric flasks and is diluted to scale, is shaken up, stored；
C. the sodium hydroxide solution of 10g/L is configured, the top grade sodium hydroxide for weighing 1g is dissolved in the water of 100mL；
D. bromocresol green indicator (10g/L) is weighed in 1g bromocresol green 100mL ethyl alcohol；
The 1 volume top pure grade concentrated sulfuric acid is slowly added in 23 volume of water, mixing by e. sulfuric acid solution；
The top pure grade potassium nitrate of sufficient amount is dissolved in a small amount of water by f. potassium nitrate saturated solution, continuously adds potassium nitrate until not
It is redissolved, and with the presence of a certain amount of solid nitric acid potassium in solution.
Sampling：Coal sample is dried in air, be sieved 0.2mm.Accurately weighing 1.000g (± 0.0002) coal sample is placed in combustion
It burns in ware.
The testing conditions of potentiometric titrimeter：Millivoltmeter；Digital precision 0.1mV；Magnetic stirring apparatus, mixing speed
500r/min and continuously adjustable；Buret, 10mL；Salt bridge dissolves by heating 10g potassium nitrate and 1.5g agar powders and 50mL distilled water
In, slightly cold rear injection U-shaped glass tube；Indicator electrode, the fine silver silk of diameter 3mm；Reference electrode, silver-silver chloride reference electrode (can
Self-control can purchase).
Test method
Combustion boat is put on oxygen bomb frame by the first step, connects ignition wire；
10mL sodium hydroxide solutions are added in oxygen bomb, carefully tighten oxygen bomb lid for second step, and oxygen is injected into oxygen bomb to 2.8-
3.0MPa simultaneously keeps 15s or more；
Third walks, and connects ignitor, and the igniting that is powered, burning, burning time must not be less than 15min；
4th step, Oxygen Bomb Combustion terminate postcooling 15min, carefully open vent valve, are decompressed to normal pressure, open cylinder (in cylinder
Have several coal sample burnings insufficient, then test calcellation) collecting whole test solutions, (control test solution must not be higher than in the beaker of 100mL
100mL), 85mL or so is usually taken；
5th step is added 3 drop bromocresol green indicator, is neutralized to indicator with 5% sodium hydroxide and just become blue, add 1mL sulphur
Acid solution, 3mL potassium nitrate saturated solution and 5mL chlorination sodium standard solutions filter test solution with qualitative filter paper, determine solution in scale,
It shakes up, places half an hour progress constant-current titration measurement；
The test solution of preparation is transferred in 100mL beakers by the 6th step, is put into stirrer, is inserted into silver-silver chloride reference electrode and instruction
Electrode starts blender；
7th step, the calibration of titration end-point current potential：The beaker for filling blank solution is placed on titration platform, with the speed of 0.03mL/s
Drop people has determined that the silver nitrate standard solution of drop people's amount, records potential value at this time, and the silver nitrate standard solution recorded at this time is used
Amount；
The beaker for filling sample solution is placed on titration platform by the 8th step.People's silver nitrate standard is first dripped with the speed of 0.05mL/s
Solution, the millivolt number that observation millivoltmeter is shown are titrated with 0.02mL/s speed when close to the terminal current potential demarcated until reaching mark
Fixed terminal current potential.Silver nitrate standard solution adds people to measure under stirring 1min postscripts；
9th step, the calculating of chlorine content in coal
Cl-air-dried sample chlorinity, in terms of mass fraction (%)；The silver nitrate standard solution of V1-calibration terminal current potential
Dosage, unit are milliliter (mL)；The silver nitrate standard solution dosage of V2-titration coal sample solution, unit are milliliter (mL)；C-nitre
The concentration of sour silver standard solution, unit are mM every milliliter (mmol/mL)；MM quality of M-chlorine, in terms of 0.03545,
Unit is gram every mM (g/mmol)；M-air-dried sample quality, unit are gram (g).
Compared with prior art, detection method preferably will in coal inhale chlorine it is attached out, experimental period can shorten
15min facilitates detection, and testing efficiency is high, and detection method is simple and practicable, reaches 97%-99% using the rate of recovery of the method.
Description of the drawings
Fig. 1 is Oxygen Bomb Combustion apparatus structure schematic diagram used in detection method.
Fig. 2 is potentiometric titrimeter structural schematic diagram used in detection method.
Specific implementation mode
With reference to embodiment and attached drawing, the present invention is further described.
The present invention design a kind of Oxygen Bomb Combustion quickly measure chlorine content in coal detection method (abbreviation detection method, referring to
Fig. 1,2), is as follows：
Processed coal sample is poured into the combustion boat in oxygen bomb 2, then oxygen bomb is put into protective device 4 by the first step, anti-block
Bullet explodes and hurts operator, connection igniter 3 and protective device 4；
Second step, in oxygen bomb be added 10mL sodium hydroxide solutions, carefully tighten oxygen bomb lid, into oxygen bomb 2 inject oxygen 1 to
2.8-3.0MPa simultaneously keeps 15s or more；
Third walks, and presses ignitor 5, and the igniting that is powered, burning, burning time must not be less than 15min；
4th step, the burning of oxygen bomb 2 terminate postcooling 15min, carefully open vent valve, are decompressed to normal pressure, open cylinder (in cylinder
Have several coal sample burnings insufficient, then test calcellation) collecting whole test solutions, (control test solution must not be higher than in the beaker of 100mL
100mL), 85mL or so is usually taken；
5th step is added 3 drop bromocresol green indicator, is neutralized to indicator with 5% sodium hydroxide and just become blue, add 1mL sulphur
Acid solution, 3mL potassium nitrate saturated solution and 5mL chlorination sodium standard solutions filter test solution with qualitative filter paper, determine solution in scale,
It shakes up, places half an hour progress constant-current titration measurement；
The test solution of preparation is transferred in 100mL beakers 3 by the 6th step, is put into stirrer 2, is inserted into 5 He of silver-silver chloride reference electrode
Indicator electrode 4 starts blender 6；
7th step, the calibration of titration end-point current potential：The beaker for filling blank solution is placed on titration platform, with the speed of 0.03mL/s
Buret 7 drips the silver nitrate standard solution that people has determined that drop people's amount, observes millivoltmeter 1, records potential value at this time, record is at this time
Silver nitrate standard solution dosage；
The beaker 3 for filling sample solution is placed on titration platform by the 8th step.People's nitre is first dripped with the speed buret 7 of 0.05mL/s
Acid silver standard solution, the millivolt number that observation millivoltmeter 1 is shown are titrated when close to the terminal current potential demarcated with 0.02mL/s speed
Until reaching the terminal current potential of calibration.Silver nitrate standard solution adds people to measure under stirring 1min postscripts.
9th step, calculates chlorine content in coal.
Embodiment 1
The chlorinity in mark coal GBW11118a is detected with detection method and device.
The first step weighs the coal sample of 0.998g, and processed coal sample is poured into the combustion boat in oxygen bomb 2, then by oxygen bomb
It is put into protective device 4, prevents oxygen bomb from exploding and hurting operator, connection igniter 3 and protective device 4；
Second step, in oxygen bomb be added 10mL sodium hydroxide solutions, carefully tighten oxygen bomb lid, into oxygen bomb 2 inject oxygen 1 to
2.8-3.0MPa simultaneously keeps 15s or more；
Third walks, and presses ignitor 5, and the igniting that is powered, burning, burning time must not be less than 15min；
4th step, the burning of oxygen bomb 2 terminate postcooling 15min, carefully open vent valve, are decompressed to normal pressure, open cylinder (in cylinder
Have several coal sample burnings insufficient, then test calcellation) collecting whole test solutions, (control test solution must not be higher than in the beaker of 100mL
100mL), 85mL or so is usually taken；
5th step is added 3 drop bromocresol green indicator, is neutralized to indicator with 5% sodium hydroxide and just become blue, add 1mL sulphur
Acid solution, 3mL potassium nitrate saturated solution and 5mL chlorination sodium standard solutions filter test solution with qualitative filter paper, determine solution in scale,
It shakes up, places half an hour progress constant-current titration measurement；
The test solution of preparation is transferred in 100mL beakers 3 by the 6th step, is put into stirrer 2, is inserted into 5 He of silver-silver chloride reference electrode
Indicator electrode 4 starts blender 6；
7th step, the calibration of titration end-point current potential：The beaker for filling blank solution is placed on titration platform, with the speed of 0.03mL/s
Buret 7 drips the silver nitrate standard solution that people has determined that drop people's amount, observes millivoltmeter 1, records potential value at this time, record is at this time
Silver nitrate standard solution dosage；
The beaker 3 for filling sample solution is placed on titration platform by the 8th step.People's nitre is first dripped with the speed buret 7 of 0.05mL/s
Acid silver standard solution, the millivolt number that observation millivoltmeter 1 is shown are titrated when close to the terminal current potential demarcated with 0.02mL/s speed
Until reaching the terminal current potential of calibration.Silver nitrate standard solution adds people to measure under stirring 1min postscripts.
9th step, calculates chlorine content in coal.
Embodiment 2
The chlorinity in mark coal GBW11119a is detected with detection method and device.
The first step weighs the coal sample of 0.999g, and processed coal sample is poured into the combustion boat in oxygen bomb 2, then by oxygen bomb
It is put into protective device 4, prevents oxygen bomb from exploding and hurting operator, connection igniter 3 and protective device 4；
Second step, in oxygen bomb be added 10mL sodium hydroxide solutions, carefully tighten oxygen bomb lid, into oxygen bomb 2 inject oxygen 1 to
2.8-3.0MPa simultaneously keeps 15s or more；
Third walks, and presses ignitor 5, and the igniting that is powered, burning, burning time must not be less than 15min；
4th step, the burning of oxygen bomb 2 terminate postcooling 15min, carefully open vent valve, are decompressed to normal pressure, open cylinder (in cylinder
Have several coal sample burnings insufficient, then test calcellation) collecting whole test solutions, (control test solution must not be higher than in the beaker of 100mL
100mL), 85mL or so is usually taken；
5th step is added 3 drop bromocresol green indicator, is neutralized to indicator with 5% sodium hydroxide and just become blue, add 1mL sulphur
Acid solution, 3mL potassium nitrate saturated solution and 5mL chlorination sodium standard solutions filter test solution with qualitative filter paper, determine solution in scale,
It shakes up, places half an hour progress constant-current titration measurement；
The test solution of preparation is transferred in 100mL beakers 3 by the 6th step, is put into stirrer 2, is inserted into 5 He of silver-silver chloride reference electrode
Indicator electrode 4 starts blender 6；
7th step, the calibration of titration end-point current potential：The beaker for filling blank solution is placed on titration platform, with the speed of 0.03mL/s
Buret 7 drips the silver nitrate standard solution that people has determined that drop people's amount, observes millivoltmeter 1, records potential value at this time, record is at this time
Silver nitrate standard solution dosage；
The beaker 3 for filling sample solution is placed on titration platform by the 8th step.People's nitre is first dripped with the speed buret 7 of 0.05mL/s
Acid silver standard solution, the millivolt number that observation millivoltmeter 1 is shown are titrated when close to the terminal current potential demarcated with 0.02mL/s speed
Until reaching the terminal current potential of calibration.Silver nitrate standard solution adds people to measure under stirring 1min postscripts.
9th step, calculates chlorine content in coal.
Embodiment 3
The chlorinity in mark coal GBW11120a is detected with detection method and device.
The first step weighs the coal sample of 1.002g, and processed coal sample is poured into the combustion boat in oxygen bomb 2, then by oxygen bomb
It is put into protective device 4, prevents oxygen bomb from exploding and hurting operator, connection igniter 3 and protective device 4；
Second step, in oxygen bomb be added 10mL sodium hydroxide solutions, carefully tighten oxygen bomb lid, into oxygen bomb 2 inject oxygen 1 to
2.8-3.0MPa simultaneously keeps 15s or more；
Third walks, and presses ignitor 5, and the igniting that is powered, burning, burning time must not be less than 15min；
4th step, the burning of oxygen bomb 2 terminate postcooling 15min, carefully open vent valve, are decompressed to normal pressure, open cylinder (in cylinder
Have several coal sample burnings insufficient, then test calcellation) collecting whole test solutions, (control test solution must not be higher than in the beaker of 100mL
100mL), 85mL or so is usually taken；
5th step is added 3 drop bromocresol green indicator, is neutralized to indicator with 5% sodium hydroxide and just become blue, add 1mL sulphur
Acid solution, 3mL potassium nitrate saturated solution and 5mL chlorination sodium standard solutions filter test solution with qualitative filter paper, determine solution in scale,
It shakes up, places half an hour progress constant-current titration measurement；
The test solution of preparation is transferred in 100mL beakers 3 by the 6th step, is put into stirrer 2, is inserted into 5 He of silver-silver chloride reference electrode
Indicator electrode 4 starts blender 6；
7th step, the calibration of titration end-point current potential：The beaker for filling blank solution is placed on titration platform, with the speed of 0.03mL/s
Buret 7 drips the silver nitrate standard solution that people has determined that drop people's amount, observes millivoltmeter 1, records potential value at this time, record is at this time
Silver nitrate standard solution dosage；
The beaker 3 for filling sample solution is placed on titration platform by the 8th step.People's nitre is first dripped with the speed buret 7 of 0.05mL/s
Acid silver standard solution, the millivolt number that observation millivoltmeter 1 is shown are titrated when close to the terminal current potential demarcated with 0.02mL/s speed
Until reaching the terminal current potential of calibration.Silver nitrate standard solution adds people to measure under stirring 1min postscripts.
9th step, calculates chlorine content in coal.
Claims (1)
1. a kind of Oxygen Bomb Combustion quickly measures the detection method of chlorine content in coal, it is as follows：
Combustion boat is put on oxygen bomb frame by the first step, connects ignition wire；
10mL sodium hydroxide solutions are added in oxygen bomb, carefully tighten oxygen bomb lid for second step, and oxygen is injected into oxygen bomb to 2.8-
3.0MPa simultaneously keeps 15s or more；
Third walks, and connects ignitor, and the igniting that is powered, burning, burning time must not be less than 15min；
4th step, Oxygen Bomb Combustion terminate postcooling 15min, carefully open vent valve, are decompressed to normal pressure, open cylinder（In cylinder
There are several coal sample burnings insufficient, then tests calcellation）Whole test solutions are collected in the beaker of 100mL（Control test solution must not be higher than
100mL）, usually take 85mL or so；
5th step is added 3 drop bromocresol green indicator, is neutralized to indicator with 5% sodium hydroxide and just become blue, add 1mL sulfuric acid
Solution, 3mL potassium nitrate saturated solution and 5mL chlorination sodium standard solutions filter test solution with qualitative filter paper, determine solution in scale, shake
It is even, place half an hour progress constant-current titration measurement；
The test solution of preparation is transferred in 100mL beakers by the 6th step, is put into stirrer, is inserted into silver-silver chloride reference electrode and instruction
Electrode starts blender；
7th step, the calibration of titration end-point current potential：The beaker for filling blank solution is placed on titration platform, with the speed of 0.03mL/s
Drop people has determined that the silver nitrate standard solution of drop people's amount, records potential value at this time, and the silver nitrate standard solution recorded at this time is used
Amount；
The beaker for filling sample solution is placed on titration platform by the 8th step, first drips people's silver nitrate standard with the speed of 0.05mL/s
Solution, the millivolt number that observation millivoltmeter is shown are titrated with 0.02mL/s speed when close to the terminal current potential demarcated until reaching mark
Fixed terminal current potential stirs silver nitrate standard solution under 1min postscripts and people is added to measure；
9th step, the calculating of chlorine content in coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628140.1A CN108663405A (en) | 2018-06-19 | 2018-06-19 | A kind of Oxygen Bomb Combustion quickly measures the detection method of chlorine content in coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628140.1A CN108663405A (en) | 2018-06-19 | 2018-06-19 | A kind of Oxygen Bomb Combustion quickly measures the detection method of chlorine content in coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108663405A true CN108663405A (en) | 2018-10-16 |
Family
ID=63775846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810628140.1A Pending CN108663405A (en) | 2018-06-19 | 2018-06-19 | A kind of Oxygen Bomb Combustion quickly measures the detection method of chlorine content in coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108663405A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447605A (en) * | 2021-04-19 | 2021-09-28 | 湖南瀚洋环保科技有限公司 | Detection method for incineration type hazardous waste |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10043494A1 (en) * | 2000-09-01 | 2001-04-12 | G E R U S Mbh | Process for automatically determining the content of free chlorine in drinking water comprises placing two electrodes directly in the water and cyclically applying a material-specific cleaning potential to the cathode |
| CN101799407A (en) * | 2010-03-26 | 2010-08-11 | 苏州市贝特利高分子材料有限公司 | Method for measuring content of halogen |
| CN102253101A (en) * | 2011-05-06 | 2011-11-23 | 山东鸿瑞石油化工有限公司 | Method for detecting chloride ions in polyisobutylene |
| CN104502434A (en) * | 2014-12-25 | 2015-04-08 | 北京彤程创展科技有限公司 | Method for determining content of halogen in rubber and rubber product |
| CN104569092A (en) * | 2015-01-22 | 2015-04-29 | 首钢总公司 | Method and device used for detecting chlorine content of blast-furnace gas |
| CN105717252A (en) * | 2016-03-11 | 2016-06-29 | 华电电力科学研究院 | Determination method for chlorine in coal |
| CN107121521A (en) * | 2017-05-25 | 2017-09-01 | 防城港出入境检验检疫局综合技术服务中心（广西国际旅行卫生保健中心防城港分中心） | The method for determining fluorine from minerals and chlorinity |
| CN206906311U (en) * | 2017-04-28 | 2018-01-19 | 华电电力科学研究院 | A kind of system and device for PAHs in coal chlorine element measure |
-
2018
- 2018-06-19 CN CN201810628140.1A patent/CN108663405A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10043494A1 (en) * | 2000-09-01 | 2001-04-12 | G E R U S Mbh | Process for automatically determining the content of free chlorine in drinking water comprises placing two electrodes directly in the water and cyclically applying a material-specific cleaning potential to the cathode |
| CN101799407A (en) * | 2010-03-26 | 2010-08-11 | 苏州市贝特利高分子材料有限公司 | Method for measuring content of halogen |
| CN102253101A (en) * | 2011-05-06 | 2011-11-23 | 山东鸿瑞石油化工有限公司 | Method for detecting chloride ions in polyisobutylene |
| CN104502434A (en) * | 2014-12-25 | 2015-04-08 | 北京彤程创展科技有限公司 | Method for determining content of halogen in rubber and rubber product |
| CN104569092A (en) * | 2015-01-22 | 2015-04-29 | 首钢总公司 | Method and device used for detecting chlorine content of blast-furnace gas |
| CN105717252A (en) * | 2016-03-11 | 2016-06-29 | 华电电力科学研究院 | Determination method for chlorine in coal |
| CN206906311U (en) * | 2017-04-28 | 2018-01-19 | 华电电力科学研究院 | A kind of system and device for PAHs in coal chlorine element measure |
| CN107121521A (en) * | 2017-05-25 | 2017-09-01 | 防城港出入境检验检疫局综合技术服务中心（广西国际旅行卫生保健中心防城港分中心） | The method for determining fluorine from minerals and chlorinity |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国国家质量监督检验检疫总局: "《中华人民共和国国家标准》", 9 June 2014 * |
| 李权斌: "氧弹燃烧－电位滴定法测定煤中氯", 《岩矿测试》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447605A (en) * | 2021-04-19 | 2021-09-28 | 湖南瀚洋环保科技有限公司 | Detection method for incineration type hazardous waste |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015166246A1 (en) | Ammonia Trap | |
| Shaikh et al. | Determination of sub-microgram per liter quantities of arsenic in water by arsine generation followed by graphite furnace atomic absorption spectrometry | |
| Farrelly et al. | Measurement of lead in blood and urine by atomic absorption spectrophotometry | |
| CN206772932U (en) | A kind of device of on-line checking mixed gas concentration | |
| CN108535348A (en) | The assay method of adsorbable organic halogen in a kind of water | |
| CN108802149A (en) | A kind of Oxygen Bomb Combustion quickly measures the detection method of PAHs in coal content | |
| CN108663405A (en) | A kind of Oxygen Bomb Combustion quickly measures the detection method of chlorine content in coal | |
| Ader et al. | Radiochemical and methodological studies on the recovery and analysis of nickel in urine | |
| CN106645559A (en) | Device and method for measuring content of free carbon in boron carbide | |
| CN110530811A (en) | The analyzing detecting method of Cd metallic element in solid food sample | |
| Luke et al. | Photometric determination of beryllium in beryllium-copper alloys | |
| Montgomery et al. | The determination of low concentrations of organic carbon in water | |
| Allan et al. | Microdetermination of osmium | |
| RAY | alcohol. L. DE K. | |
| CN206057240U (en) | A kind of device of exhaled gas multicomponent joint-detection | |
| CN209656382U (en) | SO in a kind of flue gas3Self-operated measuring unit | |
| CN111307744A (en) | Device for measuring mercury in flue gas | |
| CN110487932A (en) | The detection method of chlorine in a kind of solid waste | |
| CN212255053U (en) | Device for measuring mercury in flue gas | |
| CN112326573B (en) | Method for rapidly measuring mercury content in seasoning by direct mercury meter | |
| CN109540878B (en) | Kit for detecting barium ions and detection method thereof | |
| Bharathi et al. | Analysis of heavy metal and inorganic element content in Barringtonia acutangula leaf | |
| Willits | Organic microchemistry | |
| CN109596769A (en) | A kind of method of acetic acid salt content in measurement ester hardened sodium silicate sand | |
| Krueger | Use of a potentiometric sulfur dioxide electrode for lamp sulfur determinations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181016 |
|
| WD01 | Invention patent application deemed withdrawn after publication |