CN107202858A - A kind of composite purification additive and its application in direct mercury vapourmeter - Google Patents
A kind of composite purification additive and its application in direct mercury vapourmeter Download PDFInfo
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- CN107202858A CN107202858A CN201710429606.0A CN201710429606A CN107202858A CN 107202858 A CN107202858 A CN 107202858A CN 201710429606 A CN201710429606 A CN 201710429606A CN 107202858 A CN107202858 A CN 107202858A
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- composite purification
- purification additive
- mercury vapourmeter
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/10—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using catalysis
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- 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
- G01N21/3103—Atomic absorption analysis
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- 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
- G01N21/3103—Atomic absorption analysis
- G01N2021/3107—Cold vapor, e.g. determination of Hg
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
Abstract
It is as made from the raw material of following parts by weight the invention discloses a kind of composite purification additive：30 40 parts of powdered whiting, 59 parts of line borate, 35 parts of nickel sesquioxide, 13 parts of tungsten carbide, 2 parts of graphene, 8 12 parts of raising agent, 40 parts of carrier 30 as one kind.The invention also discloses the application of the composite purification additive in direct mercury vapourmeter.The composite purification additive preparation technology of the present invention is simple, and purification efficiency is high, with low cost; direct mercury vapourmeter catalysing tube service life can effectively be extended, each parts inside smoke contamination, effective protection equipment are reduced; increase the service life, reduce the maintenance cost of direct mercury vapourmeter.Equipment, technique, detection method need not be improved during the composite purification additive use, while the rate of recovery of mercury can also be improved, so as to improve the accuracy of the detection method.
Description
Technical field
The invention belongs to detection field, and in particular to a kind of composite purification additive and its answering in direct mercury vapourmeter
With.
Background technology
Direct injected-cold-vapour atomic absorption method determines the content of mercury without sample treatment, directly sends into sample in instrument,
Under the load of oxygen stream, sample is dried, and is then thermal decomposited；Product after thermal decomposition enters catalysing tube, halogen therein and
Nitrogen oxysulfide is by Catalyst Adsorption, and mercury is reduced into mercury atom, and mercuryvapour is changed pipe and collects the complete gold amalgam reaction of progress together,
Subsequent high temperature parsing；The last mercury parsed in absorption cell at 254 nm wavelength with Cold-Atom Absorption Spectrometry for Determining, because
And it is time saving simple without reagent contamination and environmental pollution, sensitivity is high, the degree of accuracy is good, and performs Environmental Protection in America EP7473 methods.
The various samples such as sample such as coal fly ash, coke, combustion residue, soil, organic matter, food, Atmospheric particulates, environmental sample, mineral products
Mercury Determination has been shown in document report or issuing standard in product, thus this kind of inspection technology obtains extensive answer in a variety of industries
With, only quality inspection and inspection and quarantine system over 2 years import MILSTONE companies of Italy and LEMAN companies of the U.S. directly survey mercury
Nearly hundred, instrument, is mainly used in import and the inspection of field of circulation coal, the large mineral products of import and other imports.
At present, during direct injected-cold atomic absorption mercury spectrometry, import equipment consumptive material is expensive, and one is urged
Change nearly 4,000 yuan of pipe, there is the problem of consumables cost is higher.In sample such as coal, copper concentrate, zinc lead concentrate of the detection rich in sulphur
When, elemental sulfur and reduced sulfur therein can influence the test of instrument, the failure of accelerator activator.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides sulphur and halogen, nitrogen oxides in a kind of reduction thermal decomposition product
Content, extends the composite purification additive of the service life of catalysing tube.
Present invention also offers the application of the composite purification additive in direct mercury vapourmeter.
The present invention is achieved through the following technical solutions：
A kind of composite purification additive, it is characterised in that be as made from the raw material of following parts by weight：Powdered whiting 30-40
Part, 5-9 parts of line borate, 3-5 parts of nickel sesquioxide, 1-3 parts of tungsten carbide, 2 parts of graphene, 8-12 parts of raising agent, carrier 30 as one kind -40
Part.
Described, raising agent is silicon powder and paper mill sludge ash according to 1：1.5-2 weight is than obtained.
Described, carrier is kaolin, corundum and diatomite according to 1:0.8-1:1-1.5 weight is than obtained.
Described, paper mill sludge ash is powder obtained by paper mill sludge is burned at 750 DEG C, and the screening of 200 mesh sieves is tailed over and is less than
10%。
A kind of application of composite purification additive in direct mercury vapourmeter.
It is described, composite purification additive and sample it is well mixed after, add to and detected in direct mercury vapourmeter, according to behaviour
Make code to be operated.
Described, the weight ratio of composite purification additive and sample is 1-50：100.
Described, sample is high sulfur fossil or coal.
The composite purification additive of the present invention, is as made from following methods：
1）Each raw material is crushed to 200 mesh, by powdered whiting, line borate, nickel sesquioxide, tungsten carbide, graphene after crushing
It is well mixed with raising agent, obtain just material；
2）First material is added in carrier, is well mixed, obtains powder；
3）Powder is calcined 5h at 650 DEG C, you can composite purification additive is made.
Beneficial effects of the present invention：
The composite purification additive preparation technology of the present invention is simple, and purification efficiency is high, with low cost, can effectively extend direct survey
Mercury instrument catalysing tube service life, reduces each parts inside smoke contamination, effective protection equipment, increases the service life, reduction is straight
Connect the maintenance cost of mercury vapourmeter.Equipment, technique, detection method need not be changed during the composite purification additive use
Enter, while the rate of recovery of mercury can also be improved, so as to improve the accuracy of the detection method.
Embodiment
With reference to embodiment, the present invention will be further described.
The present invention is raw materials used to buy gained for market.
Embodiment 1
A kind of composite purification additive, it is characterised in that be as made from the raw material of following parts by weight：40 parts of powdered whiting,
5 parts of line borate, 3 parts of nickel sesquioxide, 1 part of tungsten carbide, 2 parts of graphene, 12 parts of raising agent, carrier 30 as one kind part.
Described, raising agent is silicon powder and paper mill sludge ash according to 1：1.5 weight is than obtained.
Described, carrier is kaolin, corundum and diatomite according to 1: 1:1 weight is than obtained.
Described, paper mill sludge ash is powder obtained by paper mill sludge is burned at 750 DEG C, and the screening of 200 mesh sieves is tailed over and is less than
10%。
A kind of application of composite purification additive in direct mercury vapourmeter.
It is described, composite purification additive and sample it is well mixed after, add to and detected in direct mercury vapourmeter, according to behaviour
Make code to be operated.
Described, the weight ratio of composite purification additive and sample is 50：100.
Described, sample is high sulfur fossil or coal.
The composite purification additive of the present embodiment, is as made from following methods：
1）Each raw material is crushed to 200 mesh, by powdered whiting, line borate, nickel sesquioxide, tungsten carbide, graphene after crushing
It is well mixed with raising agent, obtain just material；
2）First material is added in carrier, is well mixed, obtains powder；
3）Powder is calcined 5h at 650 DEG C, you can composite purification additive is made.
It is demonstrated experimentally that the clearing machine is used in mixed way with testing sample equal proportion, catalysis tube lifetime 1.5 can be extended again with
On, more than 95% is reached to sulphur in thermal decomposition product and halogen, nox purification rate, hence it is evident that improve the rate of recovery of mercury, dropped simultaneously
Each parts inside low smoke contamination, effective protection equipment, extend complete machine service life, reduce the maintenance of direct mercury vapourmeter into
This.
Embodiment 2
A kind of composite purification additive, it is characterised in that be as made from the raw material of following parts by weight：35 parts of powdered whiting,
7 parts of line borate, 4 parts of nickel sesquioxide, 2 parts of tungsten carbide, 2 parts of graphene, 10 parts of raising agent, 35 parts of carrier.
Described, raising agent is silicon powder and paper mill sludge ash according to 1：1.8 weight is than obtained.
Described, carrier is kaolin, corundum and diatomite according to 1:0.9:1.3 weight is than obtained.
Described, paper mill sludge ash is powder obtained by paper mill sludge is burned at 750 DEG C, and the screening of 200 mesh sieves is tailed over and is less than
10%。
A kind of application of composite purification additive in direct mercury vapourmeter.
It is described, composite purification additive and sample it is well mixed after, add to and detected in direct mercury vapourmeter, according to behaviour
Make code to be operated.
Described, the weight ratio of composite purification additive and sample is 30：100.
Described, sample is high sulfur fossil or coal.
Remaining be the same as Example 1.
It is demonstrated experimentally that the clearing machine is used in mixed way with testing sample equal proportion, catalysis tube lifetime 1.5 can be extended again with
On, more than 90% is reached to sulphur in thermal decomposition product and halogen, nox purification rate, hence it is evident that improve the rate of recovery of mercury, dropped simultaneously
Each parts inside low smoke contamination, effective protection equipment, extend complete machine service life, reduce the maintenance of direct mercury vapourmeter into
This.
Embodiment 3
A kind of composite purification additive, it is characterised in that be as made from the raw material of following parts by weight：30 parts of powdered whiting,
9 parts of line borate, 5 parts of nickel sesquioxide, 3 parts of tungsten carbide, 2 parts of graphene, 8 parts of raising agent, 40 parts of carrier.
Described, raising agent is silicon powder and paper mill sludge ash according to 1：2 weight is than obtained.
Described, carrier is kaolin, corundum and diatomite according to 1:0.8:1.5 weight is than obtained.
Described, paper mill sludge ash is powder obtained by paper mill sludge is burned at 750 DEG C, and the screening of 200 mesh sieves is tailed over and is less than
10%。
A kind of application of composite purification additive in direct mercury vapourmeter.
It is described, composite purification additive and sample it is well mixed after, add to and detected in direct mercury vapourmeter, according to behaviour
Make code to be operated.
Described, the weight ratio of composite purification additive and sample is 1：100.
Described, sample is high sulfur fossil or coal.
Remaining be the same as Example 1.
It is demonstrated experimentally that the clearing machine is used in mixed way with testing sample equal proportion, more than 1 times of catalysis tube lifetime can be extended,
More than 85% is reached to sulphur in thermal decomposition product and halogen, nox purification rate, hence it is evident that improve the rate of recovery of mercury, reduced simultaneously
Each parts inside smoke contamination, effective protection equipment, extend complete machine service life, reduce the maintenance cost of direct mercury vapourmeter.
Claims (8)
1. a kind of composite purification additive, it is characterised in that be as made from the raw material of following parts by weight：Powdered whiting 30-
40 parts, 5-9 parts of line borate, 3-5 parts of nickel sesquioxide, 1-3 parts of tungsten carbide, 2 parts of graphene, 8-12 parts of raising agent, carrier 30 as one kind -40
Part.
2. composite purification additive according to claim 1, it is characterised in that the raising agent is that silicon powder and papermaking are dirty
Plaster is according to 1：1.5-2 weight is than obtained.
3. composite purification additive according to claim 1, it is characterised in that the carrier is kaolin, corundum and silicon
Diatomaceous earth is according to 1:0.8-1:1-1.5 weight is than obtained.
4. composite purification additive according to claim 2, its feature is being, the paper mill sludge ash is paper mill sludge
Powder obtained by being burned at 750 DEG C, 200 mesh sieves screening, is tailed over less than 10%.
5. a kind of application of the composite purification additive any one of claim 1-4 in direct mercury vapourmeter.
6. the application according to claim 5 in direct mercury vapourmeter, it is characterised in that the composite purification additive and
After sample is well mixed, adds to and detected in direct mercury vapourmeter.
7. the application according to claim 6 in direct mercury vapourmeter, it is characterised in that the composite purification additive and
The weight ratio of sample is 1-50：100.
8. the application according to claim 6 in direct mercury vapourmeter, it is characterised in that the sample be high sulfur fossil or
Coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710429606.0A CN107202858B (en) | 2017-06-09 | 2017-06-09 | A kind of composite purification additive for direct mercury vapourmeter and its application in direct mercury vapourmeter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710429606.0A CN107202858B (en) | 2017-06-09 | 2017-06-09 | A kind of composite purification additive for direct mercury vapourmeter and its application in direct mercury vapourmeter |
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| Publication Number | Publication Date |
|---|---|
| CN107202858A true CN107202858A (en) | 2017-09-26 |
| CN107202858B CN107202858B (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710429606.0A Expired - Fee Related CN107202858B (en) | 2017-06-09 | 2017-06-09 | A kind of composite purification additive for direct mercury vapourmeter and its application in direct mercury vapourmeter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747994A (en) * | 2020-12-25 | 2021-05-04 | 防城海关综合技术服务中心 | Sulfur-fixing agent for directly measuring mercury by solid sample introduction |
| CN113092658A (en) * | 2021-04-07 | 2021-07-09 | 防城海关综合技术服务中心 | Method for prolonging service life of solid sample introduction direct mercury detector consumable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2024154C (en) * | 1989-08-31 | 1995-02-14 | Senshi Kasahara | Catalyst for reducing nitrogen oxides from exhaust gas |
| US5417948A (en) * | 1992-11-09 | 1995-05-23 | Japan Pionics Co., Ltd. | Process for cleaning harmful gas |
| CN1381596A (en) * | 2002-05-17 | 2002-11-27 | 长春市南湖稀土合金厂 | Moisture-proof acive lime as composite desulfurizing agent |
| CN101386785A (en) * | 2008-10-24 | 2009-03-18 | 中国科学院山西煤炭化学研究所 | Desulphurizer for high-sulphur coal coke making and preparation method and applications |
| CN105854831A (en) * | 2016-06-20 | 2016-08-17 | 浙江澄宇环保新材料股份有限公司 | Calcium carbonate compound for desulfurization and denitrification |
| CN106139849A (en) * | 2009-01-12 | 2016-11-23 | Ifp 新能源公司 | The sulfur-bearing that comprises in synthesis gas for removing, nitrogenous and containing the method for halogen impurities |
-
2017
- 2017-06-09 CN CN201710429606.0A patent/CN107202858B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2024154C (en) * | 1989-08-31 | 1995-02-14 | Senshi Kasahara | Catalyst for reducing nitrogen oxides from exhaust gas |
| US5417948A (en) * | 1992-11-09 | 1995-05-23 | Japan Pionics Co., Ltd. | Process for cleaning harmful gas |
| CN1381596A (en) * | 2002-05-17 | 2002-11-27 | 长春市南湖稀土合金厂 | Moisture-proof acive lime as composite desulfurizing agent |
| CN101386785A (en) * | 2008-10-24 | 2009-03-18 | 中国科学院山西煤炭化学研究所 | Desulphurizer for high-sulphur coal coke making and preparation method and applications |
| CN106139849A (en) * | 2009-01-12 | 2016-11-23 | Ifp 新能源公司 | The sulfur-bearing that comprises in synthesis gas for removing, nitrogenous and containing the method for halogen impurities |
| CN105854831A (en) * | 2016-06-20 | 2016-08-17 | 浙江澄宇环保新材料股份有限公司 | Calcium carbonate compound for desulfurization and denitrification |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747994A (en) * | 2020-12-25 | 2021-05-04 | 防城海关综合技术服务中心 | Sulfur-fixing agent for directly measuring mercury by solid sample introduction |
| CN113092658A (en) * | 2021-04-07 | 2021-07-09 | 防城海关综合技术服务中心 | Method for prolonging service life of solid sample introduction direct mercury detector consumable |
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| Publication number | Publication date |
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| CN107202858B (en) | 2019-06-18 |
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Granted publication date: 20190618 Termination date: 20200609 |