CN211471264U - Benzyl cyanide apparatus for producing - Google Patents
Benzyl cyanide apparatus for producing Download PDFInfo
- Publication number
- CN211471264U CN211471264U CN201921713840.7U CN201921713840U CN211471264U CN 211471264 U CN211471264 U CN 211471264U CN 201921713840 U CN201921713840 U CN 201921713840U CN 211471264 U CN211471264 U CN 211471264U
- Authority
- CN
- China
- Prior art keywords
- liquid
- inlet
- outlet
- liquid separator
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides a benzyl cyanide apparatus for producing, the device makes benzyl chloride and sodium cyanide and catalyst carry out continuous cyaniding reaction in the tubular cyaniding reactor that sets up or does not set up the vortex component, obtains benzyl cyanide through solid-liquid separation, liquid-liquid separation again. The device can be used for the production process with solid sodium chloride precipitation and without solid sodium chloride precipitation. The utility model provides a benzyl cyanide apparatus for producing and application method equipment investment is few, and production efficiency is high, convenient operation, and production process raw materials consumption and energy consumption are low, and product quality is good.
Description
Technical Field
The utility model relates to a production device of chemical products, in particular to a production device of benzyl cyanide of chemical products and a use method thereof.
Background
The benzyl cyanide is an important medicine, pesticide and chemical intermediate, and has wide application and large market demand. The synthesis method of benzyl cyanide is mainly characterized in that sodium cyanide and benzyl chloride react in the presence of a catalyst to prepare the benzyl cyanide. The early production technology mostly adopts an intermittent kettle type reaction device to prepare the benzyl cyanide. In order to improve the production efficiency of phenylacetonitrile and improve the product quality and the raw material consumption, the Weifang coastal petrifaction limited company proposes that an improved stirred reactor is adopted for the production of the phenylacetonitrile; some production devices for continuously preparing phenylacetonitrile are also proposed, for example, 5 stirring kettles are provided by the Tokawa Kaishi chemical Co., Ltd. for the production device for continuously performing the cyanidation reaction in series; hebei Chengxinchi Limited liability company provides a benzyl cyanide production device for carrying out continuous cyanidation by using a tower reactor and a benzyl cyanide production technology for carrying out continuous cyanidation reaction by using a microreactor.
The benzyl cyanide production device or production technology is still an intermittent production device, or the production device has large investment and complex operation control, is easy to generate byproducts and has high production cost; or production operations that would not be suitable for the formation of sodium chloride solids. The development of the novel efficient benzyl cyanide production device improves the benzyl cyanide production efficiency and the product quality, and the reduction of the benzyl cyanide production cost has important significance.
Disclosure of Invention
The utility model provides a serialization benzyl cyanide apparatus for producing. The utility model discloses a tubular reactor who sets up vortex component carries out cyaniding reaction, and the raw materials benzyl chloride and the sodium cyanide of participating in the reaction mix in the reactor and heat transfer effect is good, and dwell time is unanimous, and reaction effect is good, and the accessory substance is few, and the product yield is high. The device provided by the utility model can be used for having the production process that solid sodium chloride appeared and no solid sodium chloride appeared.
The utility model discloses a realize through following technical scheme:
1. a benzyl cyanide apparatus for producing, apparatus for producing includes: the device comprises a sodium cyanide aqueous solution and catalyst mixing device, a tubular cyanide reactor, a solid-liquid separator, a liquid-liquid separator, a filter, a connecting pipeline and a valve between equipment, a medium conveying device, a control and display instrument and accessories. The tubular cyanidation reactor is internally provided with a turbulence element which has a disturbance effect on fluid discontinuously or continuously, the turbulence element does not move relative to the pipe wall, and the outer side of the tubular cyanidation reactor is provided with or not provided with a jacket; the device for mixing the sodium cyanide aqueous solution and the catalyst is provided with a sodium cyanide aqueous solution inlet, a catalyst inlet and a mixed solution outlet; the tubular cyanidation reactor is provided with a mixed liquid inlet, a benzyl chloride inlet and a reactant outlet from a sodium cyanide aqueous solution and catalyst mixing device; the solid-liquid separator is provided with a reactant inlet, a mixture outlet of benzyl cyanide and brine, a liquid-containing sodium chloride outlet and a circulating filtrate inlet; the liquid-liquid separator is provided with a phenylacetonitrile and brine mixture inlet, a phenylacetonitrile outlet and a brine outlet from the solid-liquid separator; the filter is provided with a liquid-containing sodium chloride inlet, a filtrate outlet and a sodium chloride outlet. The mixed liquid outlet of the sodium cyanide water solution and catalyst mixing device is communicated with the mixed liquid inlet of the tubular cyanidation reactor; the tubular cyanidation reactor reactant outlet is communicated with the solid-liquid separator reactant inlet; the outlet of the mixture of phenylacetonitrile and brine of the solid-liquid separator is communicated with the inlet of the mixture of phenylacetonitrile and brine of the liquid-liquid separator; the solid-liquid separator liquid-containing sodium chloride outlet is communicated with the filter liquid-containing sodium chloride inlet, and the filter filtrate outlet is communicated with the circulating filtrate inlet of the solid-liquid separator or communicated with the benzyl cyanide and brine mixture inlet of the liquid-liquid separator.
The utility model has the advantages and effects that:
1. the continuous production can be realized in the preparation process of the benzyl cyanide;
2. the cyanidation reaction process in the preparation of benzyl cyanide is carried out in the tubular reactor, the materials participating in the reaction flow forwards in the tubular reactor, and the materials are mixed, reacted and transferred at the same time, so that the mass and heat transfer effect is good;
3. the materials participating in the reaction have radial mixing without axial back mixing under the disturbance action of a turbulence element arranged in the tubular reactor, and the retention time of the materials in the reactor is uniform;
4. the equipment investment is low, and the operation is simple;
5. the method is suitable for the operation with solid sodium chloride separated out and without solid sodium chloride separated out.
Drawings
FIG. 1 is a schematic diagram of a tubular cyanidation reactor;
FIG. 2 is a schematic diagram of a phenylacetonitrile production apparatus in which solid sodium chloride is precipitated;
FIG. 3 is a schematic view of a phenylacetonitrile production apparatus in which solid sodium chloride is precipitated without providing an intermediate solid-liquid separator;
FIG. 4 is a schematic diagram of a production apparatus of phenylacetonitrile without precipitation of solid sodium chloride.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
The benzyl cyanide production device used in example 1 comprises: the device comprises a sodium cyanide aqueous solution and catalyst mixing device 1, a tubular cyanidation reactor 2, a solid-liquid separator 3, a liquid-liquid separator 4, a filter 5, a connecting pipeline and a valve between devices, a medium conveying device, a control and display instrument and accessories. The tubular cyanidation reactor 2 is internally provided with turbulence elements which have a disturbance effect on fluid discontinuously or continuously, the turbulence elements are a left-handed helical sheet and a right-handed helical sheet which are fixedly arranged in the tube and provided with turbulence columns, and the left-handed helical sheet and the right-handed helical sheet are connected in a staggered way by 90 degrees from head to tail. The schematic diagram of the tubular cyanidation reactor is shown in figure 1. A jacket is arranged on the outer side of the tubular cyanidation reactor 2; the sodium cyanide aqueous solution and catalyst mixing device 1 is provided with a sodium cyanide aqueous solution inlet, a catalyst inlet and a mixed liquid outlet; the tubular cyanidation reactor 2 is provided with a mixed liquid inlet, a benzyl chloride inlet and a reactant outlet from a sodium cyanide aqueous solution and catalyst mixing device; the solid-liquid separator 3 is provided with a reactant inlet, a benzyl cyanide and water mixture outlet 3-2, a liquid-containing sodium chloride outlet and a filtrate circulating inlet; the liquid-liquid separator 4 is provided with a benzyl cyanide and water mixture inlet, a benzyl cyanide outlet and a brine outlet from the solid-liquid separator 3; the filter 5 is provided with a liquid-containing sodium chloride inlet, a filtrate outlet and a sodium chloride outlet. The mixed liquid outlet of the sodium cyanide aqueous solution and catalyst mixing device 1 is communicated with the mixed liquid inlet of the tubular cyanidation reactor 2; the outlet of the tubular cyanidation reactor 2 is communicated with the inlet of the solid-liquid separator 3; the outlet of the mixture of phenylacetonitrile and brine of the solid-liquid separator 3 is communicated with the inlet of the mixture of phenylacetonitrile and brine of the liquid-liquid separator 4; the liquid-containing sodium chloride outlet of the solid-liquid separator 3 is communicated with the liquid-containing sodium chloride inlet of the filter 5; the filtrate outlet of the filter 5 is communicated with the circulating filtrate inlet of the solid-liquid separator 3.
Example 2
Example 2 is substantially the same as example 1 except that the flow perturbation element disposed in the tubular cyanidation reactor 2 is a chemical filler.
Example 3
Example 3 is essentially the same as example 1 except that the tubular cyanidation reactor 2 has a flow perturbation element therein as a commercially available static mixer.
Example 4
Example 4 is substantially the same as example 1 except that the apparatus for producing phenylacetonitrile of this example is not provided with the solid-liquid separator 3, the outlet of the reactant of the tubular cyanidation reactor 2 is communicated with the inlet of the liquid-containing sodium chloride of the filter 5, and the outlet of the filtrate of the filter is communicated with the inlet of the mixture of phenylacetonitrile and brine of the liquid-liquid separator 4. Example 4 the apparatus is schematically shown in figure 3.
Example 5
Example 5 is substantially the same as example 1 except that the phenylacetonitrile production apparatus of this example is not provided with the solid-liquid separator 3 and the filter 5, and the outlet of the tubular cyanidation reactor 2 and the inlet of the liquid-liquid separator 4 are communicated with each other with the inlet of the brine. The apparatus of example 5 is schematically shown in FIG. 4.
Example 6
Example 6 is essentially the same as example 1, except that no flow perturbation elements are provided within the tubular cyanidation reactor 2.
Claims (1)
1. The utility model provides a benzyl cyanide apparatus for producing, its characterized in that, apparatus for producing includes: the device comprises a sodium cyanide aqueous solution and catalyst mixing device (1), a tubular cyanidation reactor (2), a solid-liquid separator (3), a liquid-liquid separator (4), a filter (5), a device connecting pipeline, a valve, a medium conveying device, a control and display instrument and accessories; the tubular cyanidation reactor (2) is internally provided with a turbulence element which has a disturbance effect on fluid discontinuously or continuously, the turbulence element does not move relative to the pipe wall, and the outer side of the tubular cyanidation reactor (2) is provided with or not provided with a jacket; the device (1) for mixing the sodium cyanide aqueous solution and the catalyst is provided with a sodium cyanide aqueous solution inlet (1-1), a catalyst inlet (1-2) and a mixed solution outlet (1-3); the tubular cyanidation reactor (2) is provided with a mixed liquid inlet (2-1) and a benzyl chloride inlet (2-2) from a sodium cyanide aqueous solution and catalyst mixing device (1) and a reactant outlet (2-3); the solid-liquid separator (3) is provided with a reactant inlet (3-1), a benzyl cyanide and brine mixture outlet (3-2), a liquid-containing sodium chloride outlet (3-3) and a filtrate circulating inlet (3-4); the liquid-liquid separator (4) is provided with a phenylacetonitrile and brine mixture inlet (4-1), a phenylacetonitrile outlet (4-2) and a brine outlet (4-3) from the solid-liquid separator (3); the filter (5) is provided with a liquid-containing sodium chloride inlet (5-1), a filtrate outlet (5-2) and a sodium chloride outlet (5-3); a mixed liquid outlet (1-3) of the sodium cyanide aqueous solution and catalyst mixing device (1) is communicated with a mixed liquid inlet (2-1) of the tubular cyanidation reactor (2); a reactant outlet (2-3) of the tubular cyanidation reactor (2) is communicated with a reactant inlet (3-1) of the solid-liquid separator (3); the outlet (3-2) of the mixture of phenylacetonitrile and brine of the solid-liquid separator (3) is communicated with the inlet (4-1) of the mixture of phenylacetonitrile and brine of the liquid-liquid separator (4); a liquid-containing sodium chloride outlet (3-3) of the solid-liquid separator (3) is communicated with a liquid-containing sodium chloride inlet (5-1) of the filter (5); a filtrate outlet (5-2) of the filter (5) is communicated with a circulating filtrate inlet (3-4) of the solid-liquid separator (3) or communicated with a benzyl cyanide and brine mixture inlet (4-1) of the liquid-liquid separator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921713840.7U CN211471264U (en) | 2019-10-14 | 2019-10-14 | Benzyl cyanide apparatus for producing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921713840.7U CN211471264U (en) | 2019-10-14 | 2019-10-14 | Benzyl cyanide apparatus for producing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211471264U true CN211471264U (en) | 2020-09-11 |
Family
ID=72360609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921713840.7U Active CN211471264U (en) | 2019-10-14 | 2019-10-14 | Benzyl cyanide apparatus for producing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211471264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110841585A (en) * | 2019-10-14 | 2020-02-28 | 吴剑华 | Benzyl cyanide production device and use method thereof |
-
2019
- 2019-10-14 CN CN201921713840.7U patent/CN211471264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110841585A (en) * | 2019-10-14 | 2020-02-28 | 吴剑华 | Benzyl cyanide production device and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110003032B (en) | Continuous preparation method of L-carnitine | |
| CN207507463U (en) | Reaction kettle | |
| CN107879337B (en) | Method and equipment for preparing graphene oxide | |
| CN110841585A (en) | Benzyl cyanide production device and use method thereof | |
| CN202725165U (en) | Particle crystallization reaction system for preparation of lithium battery material precursor | |
| CN211471264U (en) | Benzyl cyanide apparatus for producing | |
| CN108822004A (en) | The pipe reaction synthetic method and device of continuous production acesulfame potassium intermediate | |
| CN106905172A (en) | A kind of preparation method of utilization micro passage reaction methyl anthranilate | |
| CN203853071U (en) | Reaction kettle for synthesizing carbamates compound by urea method | |
| CN113181850A (en) | Microchannel preparation method of indole compound | |
| CN109180502A (en) | Utilize the tubular reactor and method of cycocel production End gas production choline chloride | |
| CN105111090B (en) | A kind of continuous preparation method of the dinitro ethene of 1,1 diaminourea 2,2 | |
| CN202447063U (en) | High-efficiency reaction kettle | |
| CN215877290U (en) | Low-cost enamel kettle for medicine production and processing | |
| CN111377884A (en) | Method for continuously preparing acesulfame potassium through microchannel reactor | |
| CN212348692U (en) | Ultrasonic homogeneous single-tube reactor | |
| CN211358762U (en) | Polyethylene low-temperature low-pressure polymerization reaction kettle | |
| CN206642691U (en) | A kind of process units of fatty acid acylamino acid surfactant | |
| CN113045451A (en) | Method for preparing methoxylamine hydrochloride by adopting microreactor | |
| CN209109147U (en) | A kind of raspberry ketone reaction unit | |
| CN207659096U (en) | The equipment for preparing graphene oxide | |
| CN111408319A (en) | Method for preparing p-tert-butyl toluene | |
| CN106673978B (en) | 3,5- Dichloro-2-pentanone is continuously synthesizing to method | |
| CN213050626U (en) | Continuous vertical spiral tube type reaction device for synthesizing 2-chloro-5-chloromethyl thiazole | |
| CN101054473B (en) | Coupling producing device and producing technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |