CN108245919A - A kind of device for continuously recycling and recovery method of the dichloromethane containing chlorine - Google Patents
A kind of device for continuously recycling and recovery method of the dichloromethane containing chlorine Download PDFInfo
- Publication number
- CN108245919A CN108245919A CN201710936595.5A CN201710936595A CN108245919A CN 108245919 A CN108245919 A CN 108245919A CN 201710936595 A CN201710936595 A CN 201710936595A CN 108245919 A CN108245919 A CN 108245919A
- Authority
- CN
- China
- Prior art keywords
- dichloromethane
- tourie
- pump
- layering
- chlorine
- 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
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 title claims abstract description 240
- 239000000460 chlorine Substances 0.000 title claims abstract description 51
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 51
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000004064 recycling Methods 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 7
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims description 2
- 230000006378 damage Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000000605 extraction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- MCZQGJXPPZHLTG-UHFFFAOYSA-N C.[Cl] Chemical compound C.[Cl] MCZQGJXPPZHLTG-UHFFFAOYSA-N 0.000 description 1
- -1 chlorine Alkane Chemical class 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical class ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 125000003963 dichloro group Chemical group Cl* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/38—Separation; Purification; Stabilisation; Use of additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/202—Single element halogens
- B01D2257/2025—Chlorine
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of device for continuously recycling and recovery method of the dichloromethane containing chlorine, it is characterised in that：The device for continuously recycling of the dichloromethane containing chlorine includes layering tourie, dichloromethane receiving tank, circulating pump, condenser pump, venturi vacuum pump, second order hierarchical tank, overflow port, one end of circulating pump and condenser pump connects, the other end and venturi vacuum the pump connection of condenser pump, the chlorine and the air inlet of dichloromethane recycled is connected with venturi vacuum pump, venturi vacuum is pumped to be connect with layering tourie, and layering tourie is also connected respectively at second order hierarchical tank with dichloromethane receiving tank.Dichloromethane is recycled with the device for continuously recycling and recovery method of the dichloromethane disclosed in this invention containing chlorine, the dichloromethane rate of recovery is high, more than or equal to 95%；Dichloromethane quality is good, does not contain chlorine；Energy consumption reduces, and reduces cost；Reduce the discharge of exhaust gas containing chlorine and the exhaust gas containing dichloromethane, reduce the destruction to environment.
Description
Technical field
The present invention relates to chemical industry processing technology field, the device for continuously recycling of more particularly to a kind of dichloromethane containing chlorine
And recovery method.
Background technology
When containing chlorine in dichloromethane, chlorine is separated, dichloromethane is specially recycled, adopts in the prior art
Chlorine is detached with the method for intermittent negative pressure row's chlorine, but intermittent negative pressure is used to arrange chlorine, chlorine is difficult to dichloromethane
Separation, is easily directly aspirated by vacuum pump and then drains into air, pollute, while the loss of dichloromethane is big, and the rate of recovery is low, increases
Cost is added.
Invention content
The present invention seeks to：Overcome the shortcomings of the prior art, solve problems of the prior art, one kind is provided
The device for continuously recycling of dichloromethane containing chlorine can improve dichloromethane and chlorine separation effect using the device for continuously recycling
Rate improves the dichloromethane rate of recovery, reduces energy consumption.
The technical scheme is that：
A kind of device for continuously recycling of the dichloromethane containing chlorine, it is characterised in that：The device for continuously recycling includes dividing
Layer tourie, dichloromethane receiving tank, circulating pump, condenser pump, venturi vacuum pump, second order hierarchical tank, overflow port, circulating pump and
One end connection of condenser pump, the other end and venturi vacuum the pump connection of condenser pump, the chlorine and dichloromethane recycled
The air inlet of alkane is connected with venturi vacuum pump, and venturi vacuum pump is connect with layering tourie, be layered tourie also respectively at
Second order hierarchical tank is connected with dichloromethane receiving tank.
Preferably, second order hierarchical tank is provided with overflow port in limitation liquid level extreme higher position.
Preferably, layering tourie is circumscribed with PH meters, and PH meters are circumscribed with buck valve.
A kind of recovery method of device for continuously recycling using the aforementioned dichloromethane containing chlorine, it is characterised in that：Using
Circulator, continuous absorption chlorine, continuously separates dichloromethane.
Preferably, the recovery method mainly includes the following steps that：
Step 1: a certain amount of buck is added in into layering tourie,
Step 2: by recycling pump circulation, vacuum is made by venturi vacuum pump injection after condenser；
Step 3: opening need to recycle at this time chlorine and dichloromethane combination of gases enter venturi vacuum pump and buck mixes
It closes, chlorine generates sodium chloride after being neutralized by liquid caustic soda, soluble in water, and dichloromethane and water form layering, is layered in layering tourie
Bottom controls dichloromethane to produce by interface liquid level gauge, and high liquid level is chain to open bottom stop valve, the chain closing bottom of low liquid level
Portion's stop valve.
Preferably, layering tourie is counted by PH and adds buck valve chain, starts to add buck when pH value reaches 8,
PH value is closed when reaching 10 plus buck valve, highest liquid level are controlled by overflow.
Preferably, layering absorbs the dichloromethane inflow dichloromethane receiving tank of pot bottom.
Preferably, layering tourie adds the liquid being had more after buck to flow into second order hierarchical tank, and second order hierarchical tank further divides
Layer, and the dichloromethane after being layered enters dichloromethane receiving tank by being layered tourie, water is by overflow port overflow to useless
At water process.
Advantages of the present invention：
1st, dichloromethane is recycled with the device for continuously recycling and recovery method of the dichloromethane disclosed in this invention containing chlorine
Alkane, the dichloromethane rate of recovery is high, more than or equal to 95%.Dichloromethane quality is good, does not contain chlorine.
2nd, energy consumption reduces, and reduces cost.
3rd, reduce the discharge of the exhaust gas containing chlorine, reduce the destruction to environment.
4th, reduce the discharge of the exhaust gas containing dichloromethane, reduce the destruction to environment.
5th, venturi vacuum pump is arranged on before retracting device, prevents in tourie chlorine and dichloromethane by extraction to empty
In gas.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and embodiments：
Fig. 1 is the schematic diagram of the device for continuously recycling of the dichloromethane of the present invention containing chlorine.
Wherein：1st, tourie 2, dichloromethane receiving tank 3, circulating pump 4, condenser 5, venturi vacuum pump are layered
6th, second order hierarchical tank 7, overflow port
Specific embodiment
Below in conjunction with the accompanying drawings and technical solution of the present invention is described in detail in preferred embodiment.
As shown in Figure 1, a kind of device for continuously recycling of the dichloromethane containing chlorine, the device for continuously recycling includes layering
Tourie 1, dichloromethane receiving tank 2, circulating pump 3, condenser pump, venturi vacuum pump 5, second order hierarchical tank 6, overflow port 7, cycle
Pump 3 connect with one end of condenser pump, and the other end and the venturi vacuum pump 5 of condenser pump connects, the chlorine recycled with
The air inlet of dichloromethane is connect with venturi vacuum pump 5, and venturi vacuum pump 5 is connect with layering tourie 1, is layered tourie
1 also connects respectively at second order hierarchical tank 6 with dichloromethane receiving tank 2.With the dichloromethane disclosed in this invention containing chlorine
Device for continuously recycling and recovery method recycling dichloromethane, the dichloromethane rate of recovery is high, more than or equal to 95%.Dichloromethane quality
It is good, do not contain chlorine.Equipment is simple, and energy consumption reduces, and reduces cost.Reduce the discharge of the exhaust gas containing chlorine, reduce to environment
Destruction.Reduce the discharge of the exhaust gas containing dichloromethane, reduce the destruction to environment.Venturi vacuum pump 5 is arranged on recycling
Before device, chlorine and dichloromethane are prevented in tourie by extraction to air.
Preferably, second order hierarchical tank 6 is provided with overflow port 7 in limitation liquid level extreme higher position.Second order hierarchical tank 6 can be limited
Highest liquid level, protect retracting device.
Preferably, layering tourie 1 is circumscribed with PH meters, and PH meters are circumscribed with buck valve.It in this way can be with control hierarchy tourie 1
In lye concentration, both can guarantee that chlorine fully reacted, not welding, and can accomplish not waste lye, be conducive to be layered tank
Layering.
A kind of recovery method of device for continuously recycling using the aforementioned dichloromethane containing chlorine, uses circulator,
Continuous absorption chlorine, continuously separates dichloromethane.
Preferably, the recovery method mainly includes the following steps that：
Step 1: a certain amount of buck is added in into layering tourie 1,
Step 2: being recycled by circulating pump 3, vacuum is made by 5 injection of venturi vacuum pump after condenser 4；
Step 3: opening need to recycle at this time chlorine and dichloromethane combination of gases enter venturi vacuum pump 5 and buck
Mixing, chlorine generates sodium chloride after being neutralized by liquid caustic soda, soluble in water, and dichloromethane and water form layering, are layered and are absorbed in layering
1 bottom of tank controls dichloromethane to produce by interface liquid level gauge, and high liquid level is chain to open bottom stop valve, the chain pass of low liquid level
Close bottom stop valve.Dichloro is recycled with the device for continuously recycling and recovery method of the dichloromethane disclosed in this invention containing chlorine
Methane, the dichloromethane rate of recovery is high, more than or equal to 95%.Dichloromethane quality is good, does not contain chlorine.Equipment is simple, energy consumption drop
It is low, reduce cost.Reduce the discharge of the exhaust gas containing chlorine, reduce the destruction to environment.Reduce the exhaust gas containing dichloromethane
Discharge, reduces the destruction to environment.Venturi vacuum pump 5 is arranged on before retracting device, prevents chlorine and two in tourie
Chloromethanes is by extraction to air.
Preferably, layering tourie 1 is counted by PH and adds buck valve chain, starts to add buck when pH value reaches 8,
PH value is closed when reaching 10 plus buck valve, highest liquid level are controlled by overflow.It in this way can be with 1 inner lye of control hierarchy tourie
Concentration, both can guarantee that chlorine fully reacted, not welding, and can accomplish not waste lye, be conducive to be layered tank layering.
Preferably, the dichloromethane of 1 bottom of layering tourie flows into dichloromethane receiving tank 2.It separates and recovers convenient and simple.
Preferably, layering tourie 1 adds the liquid being had more after buck to flow into second order hierarchical tank 6, and second order hierarchical tank 6 is further
Layering, and the dichloromethane after layering enters dichloromethane receiving tank 2 by being layered tourie 1, and water passes through 7 overflow of overflow port
To wastewater treatment.Dichloromethane more preferably can be more thoroughly separated and recovered, environmental protection increases the rate of recovery, and can protect
Protect retracting device.
Still there are many embodiment, all technical sides formed using equivalents or equivalent transformation by the present invention
Case is within the scope of the present invention.
Claims (8)
1. a kind of device for continuously recycling of the dichloromethane containing chlorine, it is characterised in that：The device for continuously recycling includes layering
Tourie, dichloromethane receiving tank, circulating pump, condenser pump, venturi vacuum pump, second order hierarchical tank, overflow port, circulating pump with it is cold
One end connection of solidifying pump, the other end and venturi vacuum the pump connection of condenser pump, the chlorine and dichloromethane recycled
Air inlet and venturi vacuum pump connect, venturi vacuum pump is connect with layering tourie, is layered tourie also respectively at two
Stage layered tank is connected with dichloromethane receiving tank.
2. the device for continuously recycling of the dichloromethane according to claim 1 containing chlorine, it is characterised in that：Second order hierarchical tank
Limitation liquid level extreme higher position is provided with overflow port.
3. the device for continuously recycling of the dichloromethane according to claim 1 containing chlorine, it is characterised in that：It is layered tourie
PH meters are circumscribed with, PH meters are circumscribed with buck valve.
4. a kind of recycling side of device for continuously recycling using dichloromethane of the claim 1-3 any one of them containing chlorine
Method, it is characterised in that：Using circulator, continuous absorption chlorine continuously separates dichloromethane.
5. recovery method according to claim 4, it is characterised in that：The recovery method mainly includes the following steps that：
Step 1: a certain amount of buck is added in into layering tourie,
Step 2: by recycling pump circulation, vacuum is made by venturi vacuum pump injection after condenser；
Step 3: opening need to recycle at this time chlorine and dichloromethane combination of gases enter venturi vacuum pump and buck mixing,
Chlorine generates sodium chloride after being neutralized by liquid caustic soda, soluble in water, and dichloromethane and water form layering, is layered at layering tourie bottom
Portion controls dichloromethane to produce by interface liquid level gauge, and high liquid level is chain to open bottom stop valve, the chain closing bottom of low liquid level
Stop valve.
6. recovery method according to claim 5, it is characterised in that：Tourie is layered to count by PH and buck valve is added to connect
Lock starts to add buck when pH value reaches 8, and pH value is closed when reaching 10 plus buck valve, highest liquid level are controlled by overflow.
7. recovery method according to claim 6, it is characterised in that：The dichloromethane that layering absorbs pot bottom flows into dichloro
Methane receiving tank.
8. recovery method according to claim 7, it is characterised in that：Layering tourie adds the liquid being had more after buck to flow into
Second order hierarchical tank, second order hierarchical tank are further layered, and the dichloromethane after layering enters dichloromethane by being layered tourie
Alkane receiving tank, water by overflow port overflow to wastewater treatment at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710936595.5A CN108245919A (en) | 2017-10-10 | 2017-10-10 | A kind of device for continuously recycling and recovery method of the dichloromethane containing chlorine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710936595.5A CN108245919A (en) | 2017-10-10 | 2017-10-10 | A kind of device for continuously recycling and recovery method of the dichloromethane containing chlorine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108245919A true CN108245919A (en) | 2018-07-06 |
Family
ID=62720997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710936595.5A Pending CN108245919A (en) | 2017-10-10 | 2017-10-10 | A kind of device for continuously recycling and recovery method of the dichloromethane containing chlorine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108245919A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631499A (en) * | 2018-12-19 | 2019-04-16 | 西安近代化学研究所 | A kind of quick continuous drying technique of insensitive energetic material |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044185A (en) * | 2012-12-24 | 2013-04-17 | 龙海市贝特利生物科技有限公司 | Method for recovering chloromethane from chloromethane-containing waste gas in maltol production |
| CN203208883U (en) * | 2013-04-11 | 2013-09-25 | 自贡市金典化工有限公司 | Chlorine second-stage alkali liquid negative-pressure absorbing system |
| CN203395575U (en) * | 2013-08-13 | 2014-01-15 | 内蒙古君正化工有限责任公司 | Accident chlorine recovery system |
| CN205990450U (en) * | 2016-08-29 | 2017-03-01 | 金川集团股份有限公司 | A kind of device reclaiming heat in high temperature moist chlorine |
| CN207429735U (en) * | 2017-10-10 | 2018-06-01 | 江苏兄弟维生素有限公司 | A kind of device for continuously recycling of the dichloromethane containing chlorine |
-
2017
- 2017-10-10 CN CN201710936595.5A patent/CN108245919A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044185A (en) * | 2012-12-24 | 2013-04-17 | 龙海市贝特利生物科技有限公司 | Method for recovering chloromethane from chloromethane-containing waste gas in maltol production |
| CN203208883U (en) * | 2013-04-11 | 2013-09-25 | 自贡市金典化工有限公司 | Chlorine second-stage alkali liquid negative-pressure absorbing system |
| CN203395575U (en) * | 2013-08-13 | 2014-01-15 | 内蒙古君正化工有限责任公司 | Accident chlorine recovery system |
| CN205990450U (en) * | 2016-08-29 | 2017-03-01 | 金川集团股份有限公司 | A kind of device reclaiming heat in high temperature moist chlorine |
| CN207429735U (en) * | 2017-10-10 | 2018-06-01 | 江苏兄弟维生素有限公司 | A kind of device for continuously recycling of the dichloromethane containing chlorine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631499A (en) * | 2018-12-19 | 2019-04-16 | 西安近代化学研究所 | A kind of quick continuous drying technique of insensitive energetic material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information |
Address after: 224100 Southern District of Yancheng City Dafeng Marine Economic Development Zone, Jiangsu Applicant after: Jiangsu Brother Vitamins Co., Ltd. Address before: 224145 Southern District of Yancheng City Marine Economic Development Zone, Jiangsu Applicant before: Jiangsu Brother Vitamins Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180706 |
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| RJ01 | Rejection of invention patent application after publication |