CN103041540A - Quenching method of residual metal sodium in production process of chemical industry - Google Patents
Quenching method of residual metal sodium in production process of chemical industry Download PDFInfo
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- CN103041540A CN103041540A CN2012105028057A CN201210502805A CN103041540A CN 103041540 A CN103041540 A CN 103041540A CN 2012105028057 A CN2012105028057 A CN 2012105028057A CN 201210502805 A CN201210502805 A CN 201210502805A CN 103041540 A CN103041540 A CN 103041540A
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- production process
- chemical industry
- quenching method
- cancellation
- metal sodium
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Abstract
The invention discloses a quenching method of residual metal sodium in a production process of a chemical industry. According to the quenching method provided by the invention, metal sodium inside a reaction kettle is covered by using liquid paraffin; and quenching liquid is ethanediol or isopropanol. According to the quenching method provided by the invention, securitization treatment is conducted on the reaction kettle using the metal sodium by the liquid paraffin and other methods; the defects in the prior art can be overcome; the quenching method has the characteristics of simple operation, economical used raw materials, strong security, high efficiency, low cost, repeated utilization and the like; and the quenching method is applicable to a refine chemical enterprise which carries out project conversion frequently, and is beneficial to industrialization.
Description
Technical field
The present invention relates to the processing of the tiny sodium sand of the processing of residual metallic sodium in the chemical engineering industry production process, particularly particle, thereby make reactor reach the safe state.
Background technology
The chemical property of sodium is more active, be easy to and oxygen, steeping in water for reconstitution are given birth to reaction, and the water reaction can generate hydrogen, has more danger.
Sodium metal in the laboratory is generally held in the atoleine, it is wrong claiming sodium, potassium to be kept in the kerosene in the textbook in the past, and according to Dalton law of partial pressure, airborne oxygen also can enter atoleine, even in atoleine, sodium is slowly oxidation also.
Development along with the modern chemical industry technology; sodium metal is applied in the Chemical Manufacture more and more widely; but because character is more active; cause the unreacted that remains in the reactor completely sodium have certain danger, way is usually now, specially still is special-purpose; carry out the pressure-fired protection with nitrogen at ordinary times; but the process needs such as project conversion, scrap build, maintenance carry out safe to reactor to be processed, and just seems busy especially, causes the reaction that needs sodium to make raw material more to be not suitable for industrialization.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the present invention for the technical scheme that adopts is: the used interior sodium metal of reactor of method covers with atent solvent.
For described atent solvent is atoleine.
Described cancellation liquid is water or alcohol.Described alcohol is ethylene glycol or isopropyl alcohol.The cancellation still that described method is used and dropping still all adopt cold medium to lower the temperature.The used cancellation still of described method is equipped with rupture disk.
Reactor is added atent solvent, and reactor is metal material, at reactor the dropping pipeline is housed, and connects spark arrester by condenser, use alcohols, or water carries out slowly cancellation.
The present invention carries out safe with methods such as atoleines to the reactor that uses sodium metal and processes, solved the drawback of prior art, have simple to operate, raw materials used economy, security is more intense, efficient is high, cost is low, the characteristics such as reusable, be fit to often carry out the fine chemistry industry enterprise that project is switched, more be conducive to industrialization.
The specific embodiment
Example 1
Whole reactor is airtight, and replaces (be evacuated down to-0.06MPa, nitrogen broken to normal pressure) 3 times with the nitrogen vacuum, and vacuum is called in the atoleine of 300kg in the cancellation still, and the logical recirculated water of chuck is lowered the temperature.Same method drips in the still vacuum to solvent and calls in 300kg water, and cool to 5 ℃, by the valve control rate on the cancellation still, to wherein dripping isopropyl alcohol, the reactor maximum temperature is 40 ℃, reacting balance after isopropyl alcohol all joins in the still, stirs 2h, static 1h, look the cup separatory at the bottom of the still by reactor, water layer is done alkaline waste liquor and is processed, and the oil reservoir follow-up extended meeting of dewatering is used.Carry out again other conventional cleanings in the still.
Embodiment 2
Whole reactor is airtight, and replaces (be evacuated down to-0.06MPa, nitrogen broken to normal pressure) 3 times with the nitrogen vacuum, and vacuum is called in the atoleine of 300kg in the cancellation still, and the logical recirculated water of chuck is lowered the temperature.Same method drips in the still vacuum to solvent and calls in the 300kg isopropyl alcohol, and cool to-10 ℃, by the valve control rate on the cancellation still, to wherein dripping isopropyl alcohol, the reactor maximum temperature is 35 ℃, reacting balance, after isopropyl alcohol all joins in the still, stir 2h, emit and do liquid waste processing, the cancellation still carries out routine again and cleans.
The above; only be the better specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (6)
1. the cancellation method of residual metallic sodium in the chemical industry production process is characterized in that sodium metal covers with atent solvent in the used reactor of method.
2. the cancellation method of residual metallic sodium in the chemical industry production process according to claim 1, it is characterized by described atent solvent is atoleine.
3. the cancellation method of residual metallic sodium in the chemical industry production process according to claim 2, it is characterized by described cancellation liquid is water or alcohol.
4. the cancellation method of residual metallic sodium in the chemical industry production process according to claim 3, it is characterized by described alcohol is ethylene glycol or isopropyl alcohol.
5. the cancellation method of residual metallic sodium in the chemical industry production process according to claim 1 is characterized by the used cancellation still of described method and drips still and all adopts cold medium to lower the temperature.
6. the cancellation method of residual metallic sodium in the chemical industry production process according to claim 1 is characterized by the used cancellation still of described method rupture disk is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105028057A CN103041540A (en) | 2012-11-30 | 2012-11-30 | Quenching method of residual metal sodium in production process of chemical industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105028057A CN103041540A (en) | 2012-11-30 | 2012-11-30 | Quenching method of residual metal sodium in production process of chemical industry |
Publications (1)
| Publication Number | Publication Date |
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| CN103041540A true CN103041540A (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012105028057A Pending CN103041540A (en) | 2012-11-30 | 2012-11-30 | Quenching method of residual metal sodium in production process of chemical industry |
Country Status (1)
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| CN (1) | CN103041540A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148815A (en) * | 2015-08-19 | 2015-12-16 | 大连理工大学 | Method and device for treating waste sodium/potassium in laboratory |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06125573A (en) * | 1992-10-13 | 1994-05-06 | Kanji Murakami | Three-dimensional image pickup device |
| CN101128538A (en) * | 2005-01-14 | 2008-02-20 | 瑞典Abskf公司 | Protective composition |
-
2012
- 2012-11-30 CN CN2012105028057A patent/CN103041540A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06125573A (en) * | 1992-10-13 | 1994-05-06 | Kanji Murakami | Three-dimensional image pickup device |
| CN101128538A (en) * | 2005-01-14 | 2008-02-20 | 瑞典Abskf公司 | Protective composition |
Non-Patent Citations (1)
| Title |
|---|
| QWER12341995: "钠", 《百度百科》, 18 November 2012 (2012-11-18), pages 1 - 10 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105148815A (en) * | 2015-08-19 | 2015-12-16 | 大连理工大学 | Method and device for treating waste sodium/potassium in laboratory |
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Application publication date: 20130417 |