CN103933899A - Device and method for preparing monochloroacetone by multi-tower reaction - Google Patents
Device and method for preparing monochloroacetone by multi-tower reaction Download PDFInfo
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- CN103933899A CN103933899A CN201410134296.6A CN201410134296A CN103933899A CN 103933899 A CN103933899 A CN 103933899A CN 201410134296 A CN201410134296 A CN 201410134296A CN 103933899 A CN103933899 A CN 103933899A
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Abstract
The invention relates to a device for preparing monochloroacetone by multi-tower reaction. The device for preparing monochloroacetone by multi-tower reaction comprises a reaction kettle (1). The device for preparing monochloroacetone by multi-tower reaction is characterized in that the top end of the reaction kettle (1) is provided with a plurality of ceramic tower sections (2); the top end of each ceramic tower section (2) is directly provided with a tubular glass condenser (3); a top gas exhaust end of each tubular glass condenser (3) is connected with buffer tanks by condensing devices; liquid outlets in the bottom ends of the buffer tanks are connected with the reaction kettle (1); tail gas outlets in the top parts of the buffer tanks are connected with a hydrogen chloride recycling tank by the condensing devices. According to the invention, the chlorine flow rate can be controlled accurately by the regulating effect of the plurality of ceramic tower sections and the tubular glass condensers; the reaction is full; the yield is improved; chlorine does not leak; the whole system has no pollution in reaction.
Description
Technical field
The present invention relates to the device and method of a kind of multitower reaction monochloroacetone processed, be mainly used in the production of monochloroacetone.Belong to technical field of chemical.
Background technology
Monochloroacetone is mainly used in making pesticide, and dacryagogue is also the important source material of making medicine, its purposes and extensive.Its conventional production method is: acetone is sent into reactor reaction according to a certain ratio with chlorine after heating in advance vaporization, cooling, and 118 ~ 119 cuts are collected in distillation, product accessory substance HCl employing water spray-absorption, by-product hydrochloric acid.Its reaction unit is at tower reactor, because the ceramic tower joint on reactor top only has one, its reaction condensation is insufficient, and the addition of chlorine is wayward, easily increase accessory substance, and chlorine flowrate is excessive, can directly escapes and enter atmosphere from tower top, in addition, because acetone is volatile, react insufficient, acetone gas is also volatile to extraneous, brings harm to environment.Due to these defects, high pollution high-risk catalogue was listed in by the Committee of Development and Reform in 2013, limit its production.Restricted owing to producing, monochloroacetone is rise in price thereupon, and source of goods anxiety.
Design a kind of device, can improve the yield of monochloroacetone, and can pollution abatement, the problem of the application's research become.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, the device and method of the much higher tower reaction of a kind of pollution-free, yield monochloroacetone processed is provided.
The object of the present invention is achieved like this: the device of a kind of multitower reaction monochloroacetone processed, it comprises reactor, described reactor top is provided with many ceramic tower joints, every ceramic tower joint top is directly provided with tubular type glass condenser, outlet side, tubular type glass condenser top is connected with surge tank by condensing unit, surge tank bottom liquid outlet is connected with reactor, and the tail gas outlet at surge tank top is connected with hydrogen chloride recycling can through condensing unit.
The diameter of described tubular type glass condenser is consistent with the diameter of ceramic tower joint.
It is four as ceramic tower joint described in method for optimizing.
Article two, outlet side, tubular type glass condenser top is connected with the first surge tank by condensing unit, outlet side, another two tubular type glass condenser tops is connected with the second surge tank by condensing unit, described the first surge tank is connected respectively at the 3rd surge tank with the second surge tank bottom liquid outlet, described the 3rd surge tank bottom liquid outlet is connected with reactor, and the tail gas outlet at described the 3rd surge tank top is connected with hydrogen chloride recycling can through condensing unit.
The tubular type glass condenser on every ceramic tower joint top has more piece, and tubular type glass condenser Lower Half adopts chilled water cooling.
Tubular type glass condenser as every ceramic tower joint top of method for optimizing has 6 joints, and 3 pipe joint formula glass condensers of bottom adopt chilled water cooling, and the 3 pipe joint formula glass condensers on top adopt water cooling.
Chlorine adds from the top of the second section of every ceramic tower joint or the bottom of Section three.
The method of a kind of multitower reaction monochloroacetone processed, chlorine is added from the top of the second section of every ceramic tower joint or the bottom of Section three, enter in reactor and acetone generation displacement reaction, observe tubular type glass condenser, in the time there is color, illustrate that chlorine addition is excessive, react insufficient, now reduce the inbound traffics that add of chlorine, and strengthen the flow of cooling water, make sufficient reacting.
Compared with prior art, the invention has the beneficial effects as follows:
By the regulating action of many ceramic tower joints and tubular type glass condenser, can accurately control chlorine flowrate, sufficient reacting, improves yield, and without chlorine leakage, whole system reaction is pollution-free.
Brief description of the drawings
Fig. 1 is the structural representation of the device of multitower reaction of the present invention monochloroacetone processed.
Wherein: reactor 1, ceramic tower joint 2, tubular type glass condenser 3, the first surge tank 4, the second surge tank 5, the 3rd surge tank 6.
Detailed description of the invention
Embodiment 1:
Referring to Fig. 1, the device of a kind of multitower reaction monochloroacetone processed the present invention relates to, comprise reactor 1, described reactor 1 top is provided with four ceramic tower joints 2, every ceramic tower saves 2 tops and is provided with tubular type glass condenser 3, the diameter of described tubular type glass condenser 3 is consistent with the diameter of ceramic tower joint 2, wherein two tubular type glass condenser 3 outlet sides, top are connected with the first surge tank 4 by condensing unit, another two tubular type glass condensers 3 outlet sides, top are connected with the second surge tank 5 by condensing unit, described the first surge tank 4 is connected respectively at the 3rd surge tank 6 with the second surge tank 5 bottom liquid outlets, described the 3rd surge tank 6 bottom liquid outlets are connected with reactor 1, the tail gas outlet at described the 3rd surge tank 6 tops is connected with hydrogen chloride recycling can through condensing unit.
Every ceramic tower joint 2 has 6 joints, and every joint is high 1 meter, 6 meters of height overalls;
The tubular type glass condenser 3 that every ceramic tower saves 2 tops also has 6 joints, and every joint is high 1 meter, and 3 pipe joint formula glass condensers 3 of bottom adopt chilled water cooling, and the 3 pipe joint formula glass condensers 3 on top adopt water cooling.
Embodiment 2:
The method of a kind of multitower reaction monochloroacetone processed, chlorine is added from the top of the second section of every ceramic tower joint 2 or the bottom of Section three, enter in reactor 1 and acetone generation displacement reaction, the tubular type glass condenser 3 of observing bottom, in the time there is color, illustrates that chlorine addition is excessive, react insufficient, now reduce the inbound traffics that add of chlorine, and strengthen the flow of cooling water, make sufficient reacting.By the regulating action of four ceramic tower joints 2 and tubular type glass condenser 3, can accurately control chlorine flowrate, sufficient reacting, improves yield, and without chlorine leakage, whole system reaction is pollution-free.
Claims (8)
1. the device of a multitower reaction monochloroacetone processed, it comprises reactor (1), it is characterized in that described reactor (1) top is provided with many ceramic tower joints (2), every ceramic tower joint (2) top is directly provided with tubular type glass condenser (3), tubular type glass condenser (3) outlet side, top is connected with surge tank by condensing unit, surge tank bottom liquid outlet is connected with reactor (1), and the tail gas outlet at surge tank top is connected with hydrogen chloride recycling can through condensing unit.
2. the device of multitower reaction according to claim 1 monochloroacetone processed, is characterized in that described ceramic tower joint (2) is four.
3. the device of multitower reaction according to claim 1 monochloroacetone processed, is characterized in that, the diameter of described tubular type glass condenser (3) is consistent with the diameter that ceramic tower saves (2).
4. the device of multitower reaction according to claim 2 monochloroacetone processed, it is characterized in that, wherein two tubular type glass condensers (3) outlet side, top is connected with the first surge tank (4) by condensing unit, another two tubular type glass condensers (3) outlet side, top is connected with the second surge tank (5) by condensing unit, described the first surge tank (4) is connected respectively at the 3rd surge tank (6) with the second surge tank (5) bottom liquid outlet, described the 3rd surge tank (6) bottom liquid outlet is connected with reactor (1), the tail gas outlet at described the 3rd surge tank (6) top is connected with hydrogen chloride recycling can through condensing unit.
5. according to the device of the multitower reaction monochloroacetone processed one of claim 1-4 Suo Shu, it is characterized in that, the tubular type glass condenser (3) on every ceramic tower joint (2) top has more piece, and tubular type glass condenser (3) Lower Half adopts chilled water cooling.
6. the device of multitower reaction according to claim 5 monochloroacetone processed, it is characterized in that, the tubular type glass condenser (3) on every ceramic tower joint (2) top has 6 joints, 3 pipe joint formula glass condensers (3) of bottom adopt chilled water cooling, and the 3 pipe joint formula glass condensers (3) on top adopt water cooling.
7. according to the device of the multitower reaction monochloroacetone processed one of claim 1-4 Suo Shu, it is characterized in that, chlorine adds from the top of the second section of every ceramic tower joint (2) or the bottom of Section three.
8. the method for a multitower reaction monochloroacetone processed, it is characterized in that adopting the device of claim 1, chlorine is added from the top of the second section of every ceramic tower joint (2) or the bottom of Section three, enter in reactor (1) and acetone generation displacement reaction, observe tubular type glass condenser (3), in the time there is color, illustrate that chlorine addition is excessive, react insufficient, now reduce the inbound traffics that add of chlorine, and strengthen the flow of cooling water, make sufficient reacting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410134296.6A CN103933899B (en) | 2014-04-04 | 2014-04-04 | The device and method of multitower reaction monochloroacetone processed |
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| CN201410134296.6A CN103933899B (en) | 2014-04-04 | 2014-04-04 | The device and method of multitower reaction monochloroacetone processed |
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| CN103933899A true CN103933899A (en) | 2014-07-23 |
| CN103933899B CN103933899B (en) | 2016-02-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358387A (en) * | 2020-11-26 | 2021-02-12 | 福州大学 | Method for continuously producing monochloroacetone by micro-droplet reactor |
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| US4251467A (en) * | 1976-09-02 | 1981-02-17 | Chevron Research Company | Continuous preparation of chloroacetone |
| JPS63162646A (en) * | 1986-12-26 | 1988-07-06 | Daicel Chem Ind Ltd | Production of monochloroacetone |
| JPH09255615A (en) * | 1996-03-26 | 1997-09-30 | Mitsubishi Chem Corp | Method for producing 1,3-dichloroacetone |
| CN101255102A (en) * | 2008-04-02 | 2008-09-03 | 陈灿银 | Method for preparing monochloroacetone |
| CN201660570U (en) * | 2009-12-25 | 2010-12-01 | 盐城七善化工科技有限公司 | Special device for preparing methyl chloride compound |
| CN201711145U (en) * | 2010-07-06 | 2011-01-19 | 台州市知青化工有限公司 | Device for synthesizing intermediates of naproxen |
| CN203803477U (en) * | 2014-04-04 | 2014-09-03 | 江阴市利港第二化工有限公司 | Multi-tower monochloroacetone reaction device |
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2014
- 2014-04-04 CN CN201410134296.6A patent/CN103933899B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251467A (en) * | 1976-09-02 | 1981-02-17 | Chevron Research Company | Continuous preparation of chloroacetone |
| JPS63162646A (en) * | 1986-12-26 | 1988-07-06 | Daicel Chem Ind Ltd | Production of monochloroacetone |
| JPH09255615A (en) * | 1996-03-26 | 1997-09-30 | Mitsubishi Chem Corp | Method for producing 1,3-dichloroacetone |
| CN101255102A (en) * | 2008-04-02 | 2008-09-03 | 陈灿银 | Method for preparing monochloroacetone |
| CN201660570U (en) * | 2009-12-25 | 2010-12-01 | 盐城七善化工科技有限公司 | Special device for preparing methyl chloride compound |
| CN201711145U (en) * | 2010-07-06 | 2011-01-19 | 台州市知青化工有限公司 | Device for synthesizing intermediates of naproxen |
| CN203803477U (en) * | 2014-04-04 | 2014-09-03 | 江阴市利港第二化工有限公司 | Multi-tower monochloroacetone reaction device |
Non-Patent Citations (1)
| Title |
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| 国家建委建筑材料科学研究院技术情报所: "《玻璃管使用经验交流会资料汇编》", 31 October 1973, article "《氯气玻璃冷凝器》", pages: 186-187 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112358387A (en) * | 2020-11-26 | 2021-02-12 | 福州大学 | Method for continuously producing monochloroacetone by micro-droplet reactor |
| CN112358387B (en) * | 2020-11-26 | 2021-11-30 | 福州大学 | Method for continuously producing monochloroacetone by micro-droplet reactor |
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| CN103933899B (en) | 2016-02-03 |
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