CN107413815A - A kind of dechlorination method of chloride material - Google Patents
A kind of dechlorination method of chloride material Download PDFInfo
- Publication number
- CN107413815A CN107413815A CN201710329738.6A CN201710329738A CN107413815A CN 107413815 A CN107413815 A CN 107413815A CN 201710329738 A CN201710329738 A CN 201710329738A CN 107413815 A CN107413815 A CN 107413815A
- Authority
- CN
- China
- Prior art keywords
- chloride
- chloride material
- sulfuric acid
- reaction
- dechlorination
- 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
- 239000000463 material Substances 0.000 title claims abstract description 86
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims abstract description 65
- 238000006298 dechlorination reaction Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 39
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 38
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 17
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims abstract description 17
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000035484 reaction time Effects 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 6
- 239000003513 alkali Substances 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 6
- 239000002351 wastewater Substances 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000746 purification Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000036632 reaction speed Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Treating Waste Gases (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to dechlorination technology field, more particularly to a kind of dechlorination method of chloride material, comprise the following steps：A) pre-process：Chloride material crushes, and the chloride material after crushing is transported to contact chamber；B) contact chamber：The concentrated sulfuric acid is added toward contact chamber, is stirred simultaneously during enriching sulfuric acid, adds water mixing, then also contacts room, the concentrated sulfuric acid is transported to reative cell with forming mixed material after chloride material reaction；C) reative cell：Above-mentioned reacted mixed material is stirred, is heated after adding water mixing, is reacted and obtain hydrogen chloride gas, the residue after output-response；D) above-mentioned hydrogen chloride gas is handled by exhaust treatment system.The present invention can reach higher dechlorination rate, and reacted product can be used as technical hydrochloric acid or production water purification agent, not produce unnecessary waste water during the course of the reaction, be advantageous to the protection of environment, and caused exhaust-gas treatment cost is relatively low, reduces processing cost.
Description
Technical field
The present invention relates to dechlorination technology field, more particularly to a kind of dechlorination method of chloride material.
Background technology
Chloride material is applied widely in various fields, and usage amount is in growing trend year by year, many at present chloride
Caused material is very serious to atmosphere pollution after material is handled by way of burning, but chloride material burns,
And the recovery utilization rate for burning chloride material is very low, also has filled chloride material in addition, but chloride material have it is very big
The plastics of difficult degradation are partly belonged to, long-term existence causes serious environmental pollution in natural environment.
In the prior art, wastewater flow rate caused by general dechlorination method is larger, and pressure is larger to caused by environment after discharge,
Certain water resource waste is caused, and dechlorination efficiency is relatively low, is unfavorable for extensive use and high efficiency processing.
The content of the invention
To solve the above problems, the present invention, which provides, can effectively improve dechlorination efficiency, the by-product of energy secondary use is produced, is reduced
Water resource waste, and can effectively reduce a kind of dechlorination method of chloride material of subsequent treatment cost.
The technical solution adopted in the present invention is：
A kind of dechlorination method of chloride material, comprises the following steps：
A) pre-process：Chloride material crushes, and the chloride material after crushing is transported to contact chamber；
B) contact chamber：The concentrated sulfuric acid is added toward contact chamber, is stirred simultaneously during enriching sulfuric acid, is added water and mix
Close, then also contacts room, the concentrated sulfuric acid is transported to reative cell with forming mixed material after chloride material reaction, the concentrated sulfuric acid and chloride
The ion-reaction equation of material is：H++Cl-=HCl ↑ (heating)；
C) reative cell：Above-mentioned reacted mixed material is stirred, is heated after adding water mixing, continues depth
Dechlorination is reacted, reacts and obtains hydrogen chloride gas, the ion-reaction equation of the concentrated sulfuric acid and chloride material is：H++Cl-=HCl ↑ (add
Heat), the residue after output-response；
D) above-mentioned hydrogen chloride gas is handled by exhaust treatment system.
Preferably, the stirring intensity in the step b) is 1~10r/min, and the temperature that interior is contacted after the heating is held
Continuation of insurance holds >=70 DEG C.
Preferably, the reaction time of the step b) is 10~60min, and the reaction time of the step c) is 2~6h.
Preferably, stirring intensity is 1~10r/min in the step c), the constant temperature after the heating in reative cell
Kept for >=80 DEG C.
Preferably, the mesh number after the chloride material is broken is 80~500.
Preferably, the contact chamber and reative cell are made of the anti-corrosion and temperature-resistant material of closed.
Preferably, in the step a), chloride material through over sampling, detection after crushed, the step b) and c) in,
It is stirred by speed-adjustable stir device, in the step d), exhaust treatment system is entered using water or alkali lye to hydrogen chloride gas
The processing of row multi-stage spray.
Preferably, Cl contained during the chloride material reaction-With containing in the concentrated sulfuric acidProportion relation is to rub
That ratio
Preferably, the step b) and c) in, material water ratio in contact chamber and reative cell is 2%~20%.
Beneficial effects of the present invention are：
The present invention can reach higher dechlorination rate, and reacted product can be used as technical hydrochloric acid or production water purification agent,
Do not produce unnecessary waste water during the course of the reaction, be advantageous to the protection of environment, caused exhaust-gas treatment cost is relatively low, reduction processing
Cost.
Embodiment
With reference to embodiment, the present invention will be further described.
A kind of dechlorination method of chloride material, comprises the following steps：
A) pre-process：Chloride material crushes, and the chloride material after crushing is transported to contact chamber；
B) contact chamber：The concentrated sulfuric acid is added toward contact chamber, is stirred simultaneously during enriching sulfuric acid, is added water and mix
Close, then also contacts room, the concentrated sulfuric acid is transported to reative cell with forming mixed material after chloride material reaction, the concentrated sulfuric acid and chloride
The ion-reaction equation of material is：H++Cl-=HCl ↑ (heating)
C) reative cell：Above-mentioned reacted mixed material is stirred, is heated after adding water mixing, continues depth
Dechlorination is reacted, reacts and obtains hydrogen chloride gas, the ion-reaction equation of the concentrated sulfuric acid and chloride material is：H++Cl-=HCl ↑ (add
Heat), the residue after output-response is different according to different chloride materials and the residue that is generated after strong sulfuric acid response；
D) above-mentioned hydrogen chloride gas is handled by exhaust treatment system；
Sustainable operation also can intermittent duty as needed in actual applications for said process.
The present invention can reach higher dechlorination rate, and reacted product can be used as technical hydrochloric acid or production water purification agent,
Unnecessary waste water is not produced in course of reaction, is advantageous to the protection of environment, caused exhaust-gas treatment cost is relatively low, and reduction is processed into
This.
Embodiment 1：
Stirring intensity in step b) is 2r/min, controls stirring intensity, chloride material is fully reacted with the concentrated sulfuric acid, add
The constant temperature that interior is contacted after heat is kept for >=70 DEG C, controlling reaction temperature, while reaction speed is improved, makes reaction completeer
Entirely.
Step b) reaction time is 20min, and step c) reaction time is 3h, controls the reaction time, makes chloride material
It is complete with strong sulfuric acid response, prevent that chloride material reaction is incomplete.
Stirring intensity is 5r/min in step c), is heated evenly material, and the constant temperature after heating in reative cell is kept
>=80 DEG C, controlling reaction temperature, while reaction speed is improved, make reaction more complete.
Mesh number after chloride material is broken is 320, improves the contact area of chloride material and the concentrated sulfuric acid, further makes reaction
It is more complete.
Contact chamber and reative cell are made of the anti-corrosion and temperature-resistant material of closed, and improving reaction stability and equipment makes
With the life-span, the security of reaction, the safety of safeguard work personnel are improved.
In step a), chloride material is crushed after over sampling, detection, precisely detects the chloride ratio in chloride material
Example, prepare reaction ratio, save the energy, crush after material contact area it is bigger, make reaction complete, step b) and c) in,
It is stirred by speed-adjustable stir device, speed-adjustable stir can be carried out, reaction speed is controllable, and course of reaction is safer, in step d), gives up
Gas processing system carries out multi-stage spray processing using water or alkali lye to waste gas, can be dissolved in water caused HCL gases, reduce
Environmental pollution, and caused acidic circulation spray liquid can be used for preparing by-product technical hydrochloric acid or production water purification agent, further improve
Reactant utilization rate.
Contained Cl during chloride material reaction-With containing in the concentrated sulfuric acidProportion relation is Cl-：
Make Cl-WithFully reaction, improve reactivity and the utilization rate of the concentrated sulfuric acid.
Step b) and c) in, material water ratio in contact chamber and reative cell is 5%, reduces waste water and produces, reduces the later stage
Waste material is discharged, and improves utilization of materials.
Embodiment 2：
Stirring intensity in step b) is 9r/min, controls stirring intensity, chloride material is fully reacted with the concentrated sulfuric acid, add
The constant temperature that interior is contacted after heat is kept for >=70 DEG C, controlling reaction temperature, while reaction speed is improved, makes reaction completeer
Entirely.
Step b) reaction time is 52min, and step c) reaction time is 5h, controls the reaction time, makes chloride material
It is complete with strong sulfuric acid response, prevent that chloride material reaction is incomplete.
Stirring intensity is 9r/min in step c), is heated evenly material, and the constant temperature after heating in reative cell is kept
>=80 DEG C, controlling reaction temperature, while reaction speed is improved, make reaction more complete.
Mesh number after chloride material is broken is 420, improves the contact area of chloride material and the concentrated sulfuric acid, further makes reaction
It is more complete.
Contact chamber and reative cell are made of the anti-corrosion and temperature-resistant material of closed, and improving reaction stability and equipment makes
With the life-span, the security of reaction, the safety of safeguard work personnel are improved.
In step a), chloride material is crushed after over sampling, detection, precisely detects the chloride ratio in chloride material
Example, prepare reaction ratio, save the energy, crush after material contact area it is bigger, make reaction complete, step b) and c) in,
It is stirred by speed-adjustable stir device, speed-adjustable stir can be carried out, reaction speed is controllable, and course of reaction is safer, in step d), gives up
Gas processing system carries out multi-stage spray processing using water or alkali lye to waste gas, can be dissolved in water caused HCl gases, reduce
Environmental pollution, and caused acidic circulation spray liquid can be used for preparing by-product technical hydrochloric acid or production water purification agent, further improve
Reactant utilization rate.
Contained Cl during chloride material reaction-With containing in the concentrated sulfuric acidProportion relation is mol ratio Cl-：Make Cl-WithFully reaction, improve reactivity and the utilization rate of the concentrated sulfuric acid.
Step b) and c) in, material water ratio in contact chamber and reative cell is 12%, reduces waste water and produces, reduces the later stage
Waste material is discharged, and improves utilization of materials.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of dechlorination method of chloride material, it is characterised in that comprise the following steps：
A) pre-process：Chloride material crushes, and the chloride material after crushing is transported to contact chamber；
B) contact chamber：The concentrated sulfuric acid is added toward contact chamber, is stirred simultaneously during enriching sulfuric acid, adds water mixing,
Then also contacts room, the concentrated sulfuric acid are transported to reative cell, the concentrated sulfuric acid and chloride thing with forming mixed material after chloride material reaction
The ion-reaction equation of material is：H++Cl-=HCl ↑ (heating)；
C) reative cell：Said mixture material is stirred, is heated after adding water mixing, continues deep reaction dechlorination, instead
Hydrogen chloride gas should be obtained, the ion-reaction equation of the concentrated sulfuric acid and chloride material is：H++Cl-=HCl ↑ (heating), output are anti-
Residue after answering；
D) above-mentioned hydrogen chloride gas is handled by exhaust treatment system.
2. a kind of dechlorination method of chloride material according to claim 1, it is characterised in that the stirring in the step b) is strong
Spend for 1~10r/min, the constant temperature that interior is contacted after the heating is kept for >=70 DEG C.
A kind of 3. dechlorination method of chloride material according to claim 1, it is characterised in that the reaction time of the step b)
For 10~60min, the reaction time of the step c) is 2~6h.
A kind of 4. dechlorination method of chloride material according to claim 1, it is characterised in that stirring intensity in the step c)
For 1~10r/min, the constant temperature after the heating in reative cell is kept for >=80 DEG C.
5. a kind of dechlorination method of chloride material according to claim 1, it is characterised in that after the chloride material is broken
Mesh number is 80~500.
6. a kind of dechlorination method of chloride material according to claim 1, it is characterised in that the contact chamber and reative cell are equal
It is made of the anti-corrosion and temperature-resistant material of closed.
A kind of 7. dechlorination method of chloride material according to claim 1, it is characterised in that in the step a), chloride thing
Material through over sampling, detection after crushed, the step b) and c) in, be stirred by speed-adjustable stir device, the step
D) in, exhaust treatment system carries out multi-stage spray processing using water or alkali lye to hydrogen chloride gas.
A kind of 8. dechlorination method of chloride material according to claim 1, it is characterised in that institute during the chloride material reaction
The Cl contained-With containing in the concentrated sulfuric acidProportion relation is mol ratio Cl-：0.6~2.0.
A kind of 9. dechlorination method of chloride material according to claim 1, it is characterised in that the step b) and c) in, connect
It is 2%~20% to touch the material water ratio in room and reative cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329738.6A CN107413815A (en) | 2017-05-11 | 2017-05-11 | A kind of dechlorination method of chloride material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710329738.6A CN107413815A (en) | 2017-05-11 | 2017-05-11 | A kind of dechlorination method of chloride material |
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| Publication Number | Publication Date |
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| CN107413815A true CN107413815A (en) | 2017-12-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710329738.6A Pending CN107413815A (en) | 2017-05-11 | 2017-05-11 | A kind of dechlorination method of chloride material |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108864175A (en) * | 2018-07-06 | 2018-11-23 | 昆明理工大学 | A kind of thiol methyl tin gives up the method for chlorine removing in bottom material |
| CN114740143A (en) * | 2022-04-12 | 2022-07-12 | 四川大学 | Deep dechlorination method and device based on chloride ion occurrence form in chlorination tailings |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157690A (en) * | 1984-08-28 | 1986-03-24 | Mitsubishi Heavy Ind Ltd | Production of fuel from car scrap dust |
| JPH10132233A (en) * | 1996-10-30 | 1998-05-22 | Takuma Co Ltd | Apparatus and method for burning to dispose waste |
| JPH10323647A (en) * | 1997-05-23 | 1998-12-08 | Takuma Co Ltd | Apparatus for thermally decomposing and gasifying and melting waste and method for thermally decomposing and gasifying and melting treatment |
| CN1478000A (en) * | 2000-12-18 | 2004-02-25 | 岩崎和子 | Method and apparatus for treatment of decomposing atoms in incineration ash by diffusion to detoxify them |
| CN104772317A (en) * | 2014-01-14 | 2015-07-15 | 贵阳铝镁设计研究院有限公司 | Comprehensive treatment method for waste fused salts and dust collection slag produced through titanium tetrachloride fused salt chlorination |
-
2017
- 2017-05-11 CN CN201710329738.6A patent/CN107413815A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6157690A (en) * | 1984-08-28 | 1986-03-24 | Mitsubishi Heavy Ind Ltd | Production of fuel from car scrap dust |
| JPH10132233A (en) * | 1996-10-30 | 1998-05-22 | Takuma Co Ltd | Apparatus and method for burning to dispose waste |
| JPH10323647A (en) * | 1997-05-23 | 1998-12-08 | Takuma Co Ltd | Apparatus for thermally decomposing and gasifying and melting waste and method for thermally decomposing and gasifying and melting treatment |
| CN1478000A (en) * | 2000-12-18 | 2004-02-25 | 岩崎和子 | Method and apparatus for treatment of decomposing atoms in incineration ash by diffusion to detoxify them |
| CN104772317A (en) * | 2014-01-14 | 2015-07-15 | 贵阳铝镁设计研究院有限公司 | Comprehensive treatment method for waste fused salts and dust collection slag produced through titanium tetrachloride fused salt chlorination |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108864175A (en) * | 2018-07-06 | 2018-11-23 | 昆明理工大学 | A kind of thiol methyl tin gives up the method for chlorine removing in bottom material |
| CN108864175B (en) * | 2018-07-06 | 2020-12-15 | 昆明理工大学 | Method for removing chlorine from methyl tin mercaptide waste bottom material |
| CN114740143A (en) * | 2022-04-12 | 2022-07-12 | 四川大学 | Deep dechlorination method and device based on chloride ion occurrence form in chlorination tailings |
| CN114740143B (en) * | 2022-04-12 | 2023-10-27 | 四川大学 | Deep dechlorination method and device based on occurrence form of chloride ions in chlorination tailings |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
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| RJ01 | Rejection of invention patent application after publication |