CN204325197U - Prepare the reaction unit of Benzoyl chloride - Google Patents
Prepare the reaction unit of Benzoyl chloride Download PDFInfo
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- CN204325197U CN204325197U CN201420785202.7U CN201420785202U CN204325197U CN 204325197 U CN204325197 U CN 204325197U CN 201420785202 U CN201420785202 U CN 201420785202U CN 204325197 U CN204325197 U CN 204325197U
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- retort
- benzoyl chloride
- storage tank
- reaction unit
- underpressure distillation
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Abstract
The utility model relates to a kind of reaction unit preparing Benzoyl chloride, belongs to technical field of chemical.The described reaction unit preparing Benzoyl chloride, comprise the first retort, the second retort, underpressure distillation device and liquid header, first retort is connected with liquid header successively with the second retort, underpressure distillation device, LED light source is connected with the first retort top, and toluene tank, side reaction inhibitor feeder and chlorine storage tank are all connected with the first retort top; Second retort top is connected with phenylformic acid storage tank with catalyst feeder respectively, and phenylformic acid storage tank is connected with heating installation; First retort top is also connected with the first gas absorber, and the second retort top is also connected with the second gas absorber.The utility model structure is simple, energy-saving and environmental protection and easy to operate, the product yield using this device to prepare and purity high.
Description
Technical field
The utility model relates to a kind of reaction unit preparing Benzoyl chloride, belongs to technical field of chemical.
Background technology
Benzoyl chloride is the important intermediate preparing dyestuff, spices, organo-peroxide, medicine and resin, be also used to photograph and artificial tannic acid production among.In the technique taking toluene as Material synthesis Benzoyl chloride, reaction times mainly concentrates in the synthesis of tri-chlorination benzyl, and prior art is by the restriction of production unit, the speed of Benzyl Side-Chain Chloride reaction is lower, because side reaction causes the productive rate of tri-chlorination benzyl low, and then cause the speed of reaction of the whole technique taking toluene as Material synthesis Benzoyl chloride also lower, yield is low, energy consumption is high, causes environmental pollution to a certain extent, thus needs the existing equipment preparing Benzoyl chloride to transform.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of reaction unit preparing Benzoyl chloride, and its structure is simple, energy-saving and environmental protection and easy to operate, the product yield using this device to prepare and purity high.
The utility model solves the technical scheme that its technical problem adopts:
The described reaction unit preparing Benzoyl chloride, comprise the first retort, the second retort, underpressure distillation device and liquid header, first retort is connected with liquid header successively with the second retort, underpressure distillation device, LED light source is connected with the first retort top, and toluene tank, side reaction inhibitor feeder and chlorine storage tank are all connected with the first retort top; Second retort top is connected with phenylformic acid storage tank with catalyst feeder respectively, and phenylformic acid storage tank is connected with heating installation; First retort top is also connected with the first gas absorber, and the second retort top is also connected with the second gas absorber.
The pipeline that described toluene tank is connected with the first retort is provided with volume pump, effectively can control the add-on of toluene.
Described LED light source gos deep into the inner 20-30cm of the first retort.
When the described reaction unit preparing Benzoyl chloride runs, start toluene tank, in the first retort, toluene is added by volume pump, open LED light source, add side reaction inhibitor, chlorine is passed into in the first retort, intensification stirring reaction, obtained tri-chlorination benzyl crude product, the hydrogen chloride gas that reaction produces and excessive chlorine are absorbed by the first gas absorber; After phenylformic acid heating and melting, all join in the second retort with catalyzer and obtained tri-chlorination benzyl crude product, obtained Benzoyl chloride crude product, the hydrogen chloride gas that reaction produces is absorbed by the second gas absorber; Carry out underpressure distillation purification by underpressure distillation device to Benzoyl chloride crude product, the product distilled out enters liquid header and collects after cooling, obtains Benzoyl chloride fine work.
The beneficial effect that the utility model has is:
The LED light source that the utility model increases has the advantages such as wavelength region is narrow, concentration of energy, life-span length, gathering light beam; Newly-increased side reaction inhibitor feeder, namely adds side reaction inhibitor, effectively prevents the generation of the side reactions such as monochlor(in)ate benzyl polymerization in reaction raw materials; The newly-increased heating installation be connected with phenylformic acid storage tank, first by phenylformic acid heating and melting, then can drip tri-chlorination benzyl crude product, what reaction was carried out is more thorough.The utility model structure is simple, energy-saving and environmental protection and easy to operate, effectively accelerate Benzyl Side-Chain Chloride speed of reaction on the whole, improve the productive rate of tri-chlorination benzyl, thus improve the speed of reaction of whole technique, reduce energy consumption, decrease environmental pollution, the tail gas of generation can recycle with after the process such as buck, products therefrom purity is higher, possesses the requirement of suitability for industrialized production.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
In figure: 1, toluene tank; 2, volume pump; 3, LED light source; 4, the first retort; 5, the first gas absorber; 6, heating installation; 7, phenylformic acid storage tank; 8, catalyst feeder; 9, the second retort; 10, the second gas absorber; 11, underpressure distillation device; 12, liquid header; 13, chlorine storage tank; 14, side reaction inhibitor feeder.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Embodiment 1
As shown in Figure 1, the described reaction unit preparing Benzoyl chloride, comprise the first retort 4, second retort 9, underpressure distillation device 11 and liquid header 12, first retort 4 is connected with liquid header 12 successively with the second retort 9, underpressure distillation device 11, LED light source 3 is connected with the first retort 4 top, and toluene tank 1, side reaction inhibitor feeder 14 and chlorine storage tank 13 are all connected with the first retort 4 top; Second retort 9 top is connected with phenylformic acid storage tank 7 with catalyst feeder 8 respectively, and phenylformic acid storage tank 7 is connected with heating installation 6; First retort 4 top is also connected with the first gas absorber 5, and the second retort 9 top is also connected with the second gas absorber 10.
The pipeline that described toluene tank 1 is connected with the first retort 4 is provided with volume pump 2, effectively can control the add-on of toluene.
Described LED light source 3 gos deep into the inner 25cm of the first retort 4.
When the described reaction unit preparing Benzoyl chloride runs, start toluene tank 1, in the first retort 4, toluene is added by volume pump 2, open LED light source 3, add side reaction inhibitor, chlorine is passed into in the first retort 4, intensification stirring reaction, obtained tri-chlorination benzyl crude product, the hydrogen chloride gas that reaction produces and excessive chlorine are absorbed by the first gas absorber 5; After phenylformic acid heating and melting, all join in the second retort 9 with catalyzer and obtained tri-chlorination benzyl crude product, obtained Benzoyl chloride crude product, the hydrogen chloride gas that reaction produces is absorbed by the second gas absorber 10; Carry out underpressure distillation purification by underpressure distillation device 11 pairs of Benzoyl chloride crude products, the product distilled out enters liquid header 12 and collects after cooling, obtains Benzoyl chloride fine work.
Claims (3)
1. prepare the reaction unit of Benzoyl chloride for one kind, comprise the first retort (4), the second retort (9), underpressure distillation device (11) and liquid header (12), first retort (4) is connected with liquid header (12) successively with the second retort (9), underpressure distillation device (11), it is characterized in that: LED light source (3) is connected with the first retort (4) top, toluene tank (1), side reaction inhibitor feeder (14) are all connected with the first retort (4) top with chlorine storage tank (13); Second retort (9) top is connected with phenylformic acid storage tank (7) with catalyst feeder (8) respectively, and phenylformic acid storage tank (7) is connected with heating installation (6); First retort (4) top is also connected with the first gas absorber (5), and the second retort (9) top is also connected with the second gas absorber (10).
2. the reaction unit preparing Benzoyl chloride according to claim 1, is characterized in that: the pipeline that toluene tank (1) is connected with the first retort (4) is provided with volume pump (2).
3. the reaction unit preparing Benzoyl chloride according to claim 1, is characterized in that: LED light source (3) gos deep into the first retort (4) inner 20-30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785202.7U CN204325197U (en) | 2014-12-12 | 2014-12-12 | Prepare the reaction unit of Benzoyl chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785202.7U CN204325197U (en) | 2014-12-12 | 2014-12-12 | Prepare the reaction unit of Benzoyl chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204325197U true CN204325197U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420785202.7U Active CN204325197U (en) | 2014-12-12 | 2014-12-12 | Prepare the reaction unit of Benzoyl chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204325197U (en) |
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2014
- 2014-12-12 CN CN201420785202.7U patent/CN204325197U/en active Active
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Double Yang Zichuan District 255190 Shandong city of Zibo Province Patentee after: Shandong Kaisheng New Materials Co.,Ltd. Address before: Zichuan District of Zibo City, 255190 double Yang Shandong city in Zibo Province Patentee before: SHANDONG KAISHENG NEW MATERIALS CO., LTD. |