CN103349954A - Photochlorination reactor used for producing benzaldehyde and benzoyl chloride - Google Patents
Photochlorination reactor used for producing benzaldehyde and benzoyl chloride Download PDFInfo
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- CN103349954A CN103349954A CN 201310243618 CN201310243618A CN103349954A CN 103349954 A CN103349954 A CN 103349954A CN 201310243618 CN201310243618 CN 201310243618 CN 201310243618 A CN201310243618 A CN 201310243618A CN 103349954 A CN103349954 A CN 103349954A
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Abstract
The invention relates to a photochlorination reactor used for producing benzaldehyde and benzoyl chloride. The reactor is provided with quartz lamp sleeves, a sampling port, ultraviolet lamps, sight glasses, cooling jackets, chlorine inlet at reactor bottom, a backflow and gas phase port, a feed inlet, a thermometer port, etc., wherein the reactor is an elongated cylindrical structure and externally provided with the cooling jackets, circulating water or ice brine is filled in the cooling jackets to cool the reactor, both sides of the reactor are symmetrically provided with three pairs of sight glasses and five quartz lamp sleeves in a staggered way along a vertical direction, gaps are between the quartz lamp sleeves and the ultraviolet lamps, the sampling port is arranged in the middle of a lower part of the reactor, a bottom of the reactor is provided with the chlorine inlet at the reactor bottom, a top of the reactor is provided with the thermometer port, the backflow and gas phase port and the feed inlet, and meanwhile two ends of the backflow and gas phase port are provided with two spare ports for other uses. The reactor is reasonable in design, simple to operate and few in investment equipment, and can substantially increase yield, minimize chlorine loss and reduce amount of waste water.
Description
Technical field
The present invention relates to the chemical industry equipment field, specifically a kind of optical chlorinating reaction still for the production of benzaldehyde and chlorobenzoyl chloride.
Background technology
Optical chlorinating reaction is the reaction that production benzaldehyde and chlorobenzoyl chloride must carry out, and reaction temperature is relatively high, because there is very large potential safety hazard, the utilization of tower smooth chlorination is difficult to realize; Traditional light chlorination tank uses common light chlorination tank, and infrared lamp is placed on the loam cake of still, and light source side reaction occurs in the space easily, and chlorine utilization is low, brings pressure to environmental protection away from reactant and chlorine.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of light source that can make to shorten as far as possible distance with chlorine, chlorine enters from the reactor bottom, the chlorine stroke is long, light source follows chlorine evenly to distribute, and guarantees to react rapidly and thoroughly the optical chlorinating reaction still for the production of benzaldehyde and chlorobenzoyl chloride.
The present invention solves the problems of the technologies described above the technical scheme of taking: a kind of optical chlorinating reaction still for the production of benzaldehyde and chlorobenzoyl chloride, be provided with the quartz lamp cover, sample tap, uviol lamp, visor, cooling jacket, mouth chlorine inlet at the bottom of the still, reflux and gas phase mouth, charging aperture, the thermometer mouth, for subsequent use mouthful, it is characterized in that: reactor is the slender type cylindrical structure, the outside is provided with cooling jacket, in the cooling jacket recirculated water is housed or brine ice cools off reactor, three pairs of visors of bilateral symmetry distribution of still, vertical direction is installed and five the quartz lamp covers that are in staggered distribution, gapped between quartz lamp cover and uviol lamp, uviol lamp is cooled off by cold air, sample tap is located at the middle part, lower end of reaction kettle body, being convenient to not stop logical chlorine takes a sample, the reactor bottom is provided with mouth chlorine inlet at the bottom of the still, the upper end is provided with the thermometer mouth successively, backflow and gas phase mouth and charging aperture, backflow and gas phase mouth two ends also are provided with two for subsequent use mouthful simultaneously, use in order to his.
The present invention reduces the leakage of chlorine owing to take said structure, guarantees that the execute-in-place environment is tasteless, reduces negative pressure and introduces air impact reaction and assimilation effect.Easy and simple to handle, equipment investment is few, can greatly improve reaction yield, reduces the chlorine loss, reduces wastewater flow rate, and running cost is reduced greatly.
Description of drawings
Fig. 1 is front view of the present invention;
Fig. 2 is top view of the present invention.
Be labeled as among the figure: 1. quartz lamp cover, 2. sample tap, 3. uviol lamp, 4. visor, 5. cooling jacket, 6. mouth chlorine inlet at the bottom of the still 7. refluxes and gas phase mouth, 8. charging aperture, 9. thermometer mouth, 10. for subsequent use mouthful.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further:
As shown in Figure 1 and Figure 2, this practicality relates to a kind of optical chlorinating reaction still for the production of benzaldehyde and chlorobenzoyl chloride, be provided with mouth chlorine inlet 6 at the bottom of quartz lamp cover 1, sample tap 2, uviol lamp 3, visor 4, cooling jacket 5, the still, backflow and gas phase mouth 7, charging aperture 8, thermometer mouth 9, for subsequent use mouthful 10, it is characterized in that: described quartz lamp cover 1 and kettle are connected by the special seal pad, guarantee that material can not leak outside in the still; Sample tap 2 guarantees not open mouthful can directly get liquid-like on the still, reduces other the suction with air of distributing; Quartz lamp cover 1 and kettle link together by special pad, and uviol lamp 3 is connected 1 by special sealing piece and connects with quartz lamp, and uviol lamp 3 and 1 in quartz lamp cover are provided with the gap, and the gap passes into chilled air cools; Visor 4 links to each other with kettle, can observe at any time the situation of material in the still, and the duty of uviol lamp 3, has problem in time to change; Cooling jacket 5 passes into recirculated water or brine ice cools, and also can pass into Steam Heating, guarantees reaction temperature; Mouth chlorine inlet 6 at the bottom of the still, except blowing, or chlorine pass into mouth; Reflux condenser need be joined in the top of backflow and gas phase mouth 7, reclaims the material of gas phase loss; Charging aperture 8 is mouths of adding material; Thermometer mouth 9 is used for the thermometer sleeve pipe, and thermometer further is installed; For subsequent use mouthful 10, offer reservation during design, be ready for use on other purposes.
When the present invention used, the top of still needed supporting reflux condenser, prevents loss of material, and the still both sides have symmetrical visor whether to be convenient to observe in the still material situation and uviol lamp in normal condition; Quartz lamp overlaps symmetrical interval and becomes 90 degree directions to install with reactor, evenly distributes up and down, and ultraviolet light is followed the chlorine irradiation, guarantees sufficient reacting; Chlorine enters at the bottom of still, and stroke prolongs, and guarantees that chlorine contacts with material fully, reduces the chlorine loss; Be provided with special-purpose sample tap in the middle part of still, can not stop the leakage that logical chlorine sampling reduces chlorine, guarantee that the execute-in-place environment is tasteless, reduce negative pressure and introduce air impact reaction and assimilation effect; The cooling medium of lamp becomes cold air by water, prevent lamp cover broken water enter reactor material destroyed.
Claims (1)
1. optical chlorinating reaction still for the production of benzaldehyde and chlorobenzoyl chloride, be provided with the quartz lamp cover, sample tap, uviol lamp, visor, cooling jacket, mouth chlorine inlet at the bottom of the still, reflux and gas phase mouth, charging aperture, the thermometer mouth, for subsequent use mouthful, it is characterized in that: reactor is the slender type cylindrical structure, the outside is provided with cooling jacket, in the cooling jacket recirculated water is housed or brine ice cools off reactor, three pairs of visors of bilateral symmetry distribution of still, vertical direction is installed and five the quartz lamp covers that are in staggered distribution, gapped between quartz lamp cover and uviol lamp, uviol lamp is cooled off by cold air, sample tap is located at the middle part, lower end of reaction kettle body, being convenient to not stop logical chlorine takes a sample, the reactor bottom is provided with mouth chlorine inlet at the bottom of the still, the upper end is provided with the thermometer mouth successively, backflow and gas phase mouth and charging aperture, backflow and gas phase mouth two ends also are provided with two for subsequent use mouthful simultaneously, use in order to his.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310243618 CN103349954A (en) | 2013-06-19 | 2013-06-19 | Photochlorination reactor used for producing benzaldehyde and benzoyl chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310243618 CN103349954A (en) | 2013-06-19 | 2013-06-19 | Photochlorination reactor used for producing benzaldehyde and benzoyl chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103349954A true CN103349954A (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310243618 Pending CN103349954A (en) | 2013-06-19 | 2013-06-19 | Photochlorination reactor used for producing benzaldehyde and benzoyl chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103349954A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420611A (en) * | 2019-09-06 | 2019-11-08 | 丹阳市助剂化工厂有限公司 | A kind of chlorination tank producing chlorinated paraffin |
| CN110876916A (en) * | 2019-10-22 | 2020-03-13 | 浙江大洋生物科技集团股份有限公司 | 1000L photocatalytic reaction kettle engineering amplification and photocatalytic reaction kettle and method for producing chlorobenzyl chloride and fluorobenzene |
-
2013
- 2013-06-19 CN CN 201310243618 patent/CN103349954A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420611A (en) * | 2019-09-06 | 2019-11-08 | 丹阳市助剂化工厂有限公司 | A kind of chlorination tank producing chlorinated paraffin |
| CN110876916A (en) * | 2019-10-22 | 2020-03-13 | 浙江大洋生物科技集团股份有限公司 | 1000L photocatalytic reaction kettle engineering amplification and photocatalytic reaction kettle and method for producing chlorobenzyl chloride and fluorobenzene |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131016 |