CN108003131A - A kind of chlorocarbonic acid vinyl acetate Green production method - Google Patents
A kind of chlorocarbonic acid vinyl acetate Green production method Download PDFInfo
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- CN108003131A CN108003131A CN201810062774.5A CN201810062774A CN108003131A CN 108003131 A CN108003131 A CN 108003131A CN 201810062774 A CN201810062774 A CN 201810062774A CN 108003131 A CN108003131 A CN 108003131A
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- chlorine
- vinyl acetate
- acid vinyl
- chlorocarbonic acid
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/32—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D317/42—Halogen atoms or nitro radicals
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention provides a kind of chlorocarbonic acid vinyl acetate Green production method, and operating procedure is as follows：1) vinylene carbonate after weighing is added in chlorination tower by head tank；2) liquid chlorine is introduced in chlorination tower；3) ultraviolet lamp is opened, by the catalytic action of ultraviolet light, chlorination reaction occurs for chlorine and ethylene carbonate in kettle, produces chlorocarbonic acid vinyl acetate；4) after reacting a period of time, chlorated liquid is gone into de- light kettle, nitrogen is passed through, the chlorine being mingled with chlorated liquid and hydrogen chloride gas is driven out of；5) chlorated liquid is transferred in tube type falling-film crystallizer, by temperature control at subzero 15 DEG C subzero 10 DEG C, gained liquid is product chlorocarbonic acid vinyl acetate.The present invention has the beneficial effect that：1) continuous production, production efficiency is high, and energy consumption is low；2) product purity is high；3) unnecessary raw material can reuse, non-environmental-pollution.
Description
Technical field
The present invention relates to chlorocarbonic acid ethene fat field, more particularly to a kind of chlorocarbonic acid vinyl acetate Green production method.
Background technology
Existing chlorocarbonic acid ethene fat mainly reacts generation by vinylene carbonate and chlorine under ultra violet lamp,
This process reacts for intervalization in order to control by-products content, causes reaction efficiency low, product purity is low；In addition, reaction is secondary
Product cannot be effectively addressed, and can cause environmental pollution.
The content of the invention
It is an object of the invention to propose a kind of chlorocarbonic acid vinyl acetate Green production method, there is production efficiency height, production
The advantages that thing purity is high, non-environmental-pollution.
To achieve these goals, the present invention provides a kind of chlorocarbonic acid vinyl acetate Green production method, and operating procedure is such as
Under：
1) vinylene carbonate after weighing is added in chlorination tower by head tank；
2) by liquid chlorine after chlorine liquid carburetor hot water vaporization, chlorine pressure, regulating valve control are controlled by chlorine pressure maintaining valve
Preparing chlorine gas flow, is introduced in chlorination tower finally by inserting tube；
3) ultraviolet lamp is opened, by the catalytic action of ultraviolet light, chlorination reaction occurs for chlorine and ethylene carbonate in kettle, raw
Produce chlorocarbonic acid vinyl acetate；
4) after reacting a period of time, chlorated liquid is gone into de- light kettle, is passed through nitrogen, by the chlorine being mingled with chlorated liquid and
Hydrogen chloride gas is driven out of；
5) chlorated liquid is transferred in tube type falling-film crystallizer, by temperature control in subzero 15 DEG C -10 DEG C subzero, gained liquid
Body is product chlorocarbonic acid vinyl acetate, and content 90%-95%, the vinylene carbonate solidified in crystallizer is heated and is exported
To vinylene carbonate recycling kettle, recycled is into chlorination reaction.
Further, step 1) the chlorination tower tower diameter is 500-800mm, a height of 5-8m.
Further, the step 4) reaction time is 10-12h.
Further, step 4) the chlorated liquid key component content is chlorocarbonic acid vinyl acetate=50%-55%, double chlorine
For ethylene carbonate=0.1%-0.5%, vinylene carbonate=45%-50%.
Further, step 5) the bottom material is mainly vinylene carbonate, its content is 85%-90%.
The present invention has the beneficial effect that：1) continuous production, production efficiency is high, and energy consumption is low；2) product purity is high；3) it is unnecessary
Raw material can reuse, non-environmental-pollution.
Embodiment
The embodiment of the present invention is described below in detail.
Embodiment 1：
The present invention provides a kind of chlorocarbonic acid vinyl acetate Green production method, and operating procedure is as follows：
1) vinylene carbonate after weighing is added in chlorination tower by head tank；
2) by liquid chlorine after chlorine liquid carburetor hot water vaporization, chlorine pressure, regulating valve control are controlled by chlorine pressure maintaining valve
Preparing chlorine gas flow, is introduced in chlorination tower finally by inserting tube；
3) ultraviolet lamp is opened, by the catalytic action of ultraviolet light, chlorination reaction occurs for chlorine and ethylene carbonate in kettle, raw
Produce chlorocarbonic acid vinyl acetate；
4) after reacting a period of time, chlorated liquid is gone into de- light kettle, is passed through nitrogen, by the chlorine being mingled with chlorated liquid and
Hydrogen chloride gas is driven out of；
5) chlorated liquid is transferred in tube type falling-film crystallizer, by temperature control at subzero 10 DEG C, gained liquid is to produce
Product chlorocarbonic acid vinyl acetate, content 90.8%, the vinylene carbonate solidified in crystallizer heating is exported to carbonic acid Asia second
In enester recycling kettle, recycled is into chlorination reaction.
Wherein, step 1) the chlorination tower tower diameter is 500mm, a height of 5m.
Wherein, the step 4) reaction time is 10h.
Wherein, step 4) the chlorated liquid key component content is chlorocarbonic acid vinyl acetate=51.2%, double chlorocarbonic acids
Ethene fat=0.5%, vinylene carbonate=48.2%.
Wherein, step 5) the bottom material is mainly vinylene carbonate, its content is 85.8%.
Embodiment 2：
The present invention provides a kind of chlorocarbonic acid vinyl acetate Green production method, and operating procedure is as follows：
1) vinylene carbonate after weighing is added in chlorination tower by head tank；
2) by liquid chlorine after chlorine liquid carburetor hot water vaporization, chlorine pressure, regulating valve control are controlled by chlorine pressure maintaining valve
Preparing chlorine gas flow, is introduced in chlorination tower finally by inserting tube；
3) ultraviolet lamp is opened, by the catalytic action of ultraviolet light, chlorination reaction occurs for chlorine and ethylene carbonate in kettle, raw
Produce chlorocarbonic acid vinyl acetate；
4) after reacting a period of time, chlorated liquid is gone into de- light kettle, is passed through nitrogen, by the chlorine being mingled with chlorated liquid and
Hydrogen chloride gas is driven out of；
5) chlorated liquid is transferred in tube type falling-film crystallizer, by temperature control at subzero 15 DEG C, gained liquid is to produce
Product chlorocarbonic acid vinyl acetate, content 94.9%, the vinylene carbonate solidified in crystallizer heating is exported to carbonic acid Asia second
In enester recycling kettle, recycled is into chlorination reaction.
Wherein, step 1) the chlorination tower tower diameter is 800mm, a height of 8m.
Wherein, the step 4) reaction time is 12h.
Wherein, step 4) the chlorated liquid key component content is chlorocarbonic acid vinyl acetate=50.1%, double chlorocarbonic acids
Ethene fat=0.4%, vinylene carbonate=49.4%.
Wherein, step 5) the bottom material is mainly vinylene carbonate, its content is 89.3%.
The present invention has the beneficial effect that：1) continuous production, production efficiency is high, and energy consumption is low；2) product purity is high；3) it is unnecessary
Raw material can reuse, non-environmental-pollution.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical solution described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (5)
- A kind of 1. chlorocarbonic acid vinyl acetate Green production method, it is characterised in that：Operating procedure is as follows：1) vinylene carbonate after weighing is added in chlorination tower by head tank；2) by liquid chlorine after chlorine liquid carburetor hot water vaporization, chlorine pressure, regulating valve control chlorine are controlled by chlorine pressure maintaining valve Throughput, is introduced in chlorination tower finally by inserting tube；3) ultraviolet lamp is opened, by the catalytic action of ultraviolet light, chlorination reaction occurs for chlorine and ethylene carbonate in kettle, produces chlorine For ethylene carbonate；4) after reacting a period of time, chlorated liquid is gone into de- light kettle, is passed through nitrogen, by the chlorine being mingled with chlorated liquid and chlorination Hydrogen is driven out of；5) chlorated liquid is transferred in tube type falling-film crystallizer, by temperature control subzero 15 DEG C-it is 10 DEG C subzero, gained liquid is For product chlorocarbonic acid vinyl acetate, content 90%-95%, the vinylene carbonate solidified in crystallizer heating is exported to carbon In sour vinylene recycling kettle, recycled is into chlorination reaction.
- A kind of 2. chlorocarbonic acid vinyl acetate Green production method according to claim 1, it is characterised in that：Step 1) the chlorine It is 500-800mm, a height of 5-8m to change tower tower diameter.
- A kind of 3. chlorocarbonic acid vinyl acetate Green production method according to claim 1, it is characterised in that：When step 4) is reacted Between be 10-12h.
- A kind of 4. chlorocarbonic acid vinyl acetate Green production method according to claim 1, it is characterised in that：Step 4) the chlorine Change liquid key component content as chlorocarbonic acid vinyl acetate=50%-55%, double chlorocarbonic acid ethene fat=0.1%-0.5%, carbon Sour vinylene=45%-50%..
- A kind of 5. chlorocarbonic acid vinyl acetate Green production method according to claim 1, it is characterised in that：Step 5) the kettle Bottom material is mainly vinylene carbonate, its content is 85%-90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810062774.5A CN108003131A (en) | 2018-01-23 | 2018-01-23 | A kind of chlorocarbonic acid vinyl acetate Green production method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810062774.5A CN108003131A (en) | 2018-01-23 | 2018-01-23 | A kind of chlorocarbonic acid vinyl acetate Green production method |
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| CN108003131A true CN108003131A (en) | 2018-05-08 |
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| CN201810062774.5A Pending CN108003131A (en) | 2018-01-23 | 2018-01-23 | A kind of chlorocarbonic acid vinyl acetate Green production method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110437202A (en) * | 2019-08-27 | 2019-11-12 | 许兆石 | A kind of chloridization process of ethylene carbonate |
| CN111004203A (en) * | 2020-03-11 | 2020-04-14 | 东营市海科新源化工有限责任公司 | Purification method and purification device for electronic-grade ethylene carbonate |
| CN112979607A (en) * | 2021-03-11 | 2021-06-18 | 泰兴华盛精细化工有限公司 | Method for continuously preparing chlorinated ethylene carbonate |
| CN114437016A (en) * | 2022-02-28 | 2022-05-06 | 济源市恒顺新材料有限公司 | Production and manufacturing method of chlorinated ethylene carbonate |
| CN115677646A (en) * | 2022-11-15 | 2023-02-03 | 福建致尚生物质材料发展有限公司 | Method for co-producing bio-based plasticizer by using chloroethylene carbonate |
| CN116854658A (en) * | 2023-07-11 | 2023-10-10 | 珠海光瑞新材料有限公司 | Method for producing chloroethylene carbonate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105031966A (en) * | 2015-08-17 | 2015-11-11 | 天津市鹏翔科技有限公司 | Multi-tube falling-film crystallizer and method |
| CN105503812A (en) * | 2015-12-28 | 2016-04-20 | 苏州华一新能源科技有限公司 | Continuous production method for high-purity vinylene carbonate |
| CN107540516A (en) * | 2016-06-27 | 2018-01-05 | 宁夏海诚电化信息科技有限公司 | A kind of chlorobenzoyl chloride prepares chloride process |
-
2018
- 2018-01-23 CN CN201810062774.5A patent/CN108003131A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105031966A (en) * | 2015-08-17 | 2015-11-11 | 天津市鹏翔科技有限公司 | Multi-tube falling-film crystallizer and method |
| CN105503812A (en) * | 2015-12-28 | 2016-04-20 | 苏州华一新能源科技有限公司 | Continuous production method for high-purity vinylene carbonate |
| CN107540516A (en) * | 2016-06-27 | 2018-01-05 | 宁夏海诚电化信息科技有限公司 | A kind of chlorobenzoyl chloride prepares chloride process |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110437202A (en) * | 2019-08-27 | 2019-11-12 | 许兆石 | A kind of chloridization process of ethylene carbonate |
| CN111004203A (en) * | 2020-03-11 | 2020-04-14 | 东营市海科新源化工有限责任公司 | Purification method and purification device for electronic-grade ethylene carbonate |
| CN112979607A (en) * | 2021-03-11 | 2021-06-18 | 泰兴华盛精细化工有限公司 | Method for continuously preparing chlorinated ethylene carbonate |
| CN114437016A (en) * | 2022-02-28 | 2022-05-06 | 济源市恒顺新材料有限公司 | Production and manufacturing method of chlorinated ethylene carbonate |
| CN115677646A (en) * | 2022-11-15 | 2023-02-03 | 福建致尚生物质材料发展有限公司 | Method for co-producing bio-based plasticizer by using chloroethylene carbonate |
| CN116854658A (en) * | 2023-07-11 | 2023-10-10 | 珠海光瑞新材料有限公司 | Method for producing chloroethylene carbonate |
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Application publication date: 20180508 |