CN203007178U - Continuous production system for lithium alkylide - Google Patents
Continuous production system for lithium alkylide Download PDFInfo
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- CN203007178U CN203007178U CN 201220603734 CN201220603734U CN203007178U CN 203007178 U CN203007178 U CN 203007178U CN 201220603734 CN201220603734 CN 201220603734 CN 201220603734 U CN201220603734 U CN 201220603734U CN 203007178 U CN203007178 U CN 203007178U
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Abstract
The utility model belongs to the field of chemical material production equipment, and discloses a continuous production system for lithium alkylide. The continuous production system for the lithium alkylide comprises a twin-screw extruder (1), a mixer (2), a lithium metal nozzle (9), a solvent nozzle (8) and an L-shaped reactor (3), wherein the lithium metal nozzle (9) and the solvent nozzle (8) are placed in the mixer (2); one end of the lithium metal nozzle (9) is communicated with the twin-screw extruder (1); the solvent nozzle (8) is connected with a solvent storing device through a solvent supply pipeline (7); and the top part of the L-shaped reactor (3) is connected with the bottom part of the mixer (2) through a pipeline and is also provided with a halogenated alkyl dropping port (10). By adopting the continuous production system for the lithium alkylide, the continuous and automatic production of the lithium alkylide can be realized; the feeding speed of each material, the temperature of a reactor, the pressure and other parameters are subjected to analog control under a computer, and thus the purpose of safely and continuously producing the lithium alkylide can be realized.
Description
Technical field
The utility model belongs to industrial chemicals production unit field, relates to a kind of lithium alkylide continuous production system.
Background technology
Traditional technology prepares lithium alkylide and adopts sand processed and react the gap production technique of separating, and the lithium sand activity for preparing through high temperature is very high, deposits or shift abnormally dangerous, generally all leaves in white oil.Owing to containing white oil, the application of lithium alkylide is extremely restricted, can't be used for the fields such as liquid crystal, medicine, agricultural chemicals.If remove white oil before reacting with haloalkyl, need pass through special Processes and apparatus, waste time and energy.
In sum, the gap method produces that lithium alkylide equipment is relatively large, and production control can't realize automatic control, mostly is manual operations, not only can't guarantee the unification of product quality but also have the potential safety hazard of production process.
The utility model content
The purpose of this utility model is the defects for prior art, and a kind of lithium alkylide continuous production system is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of lithium alkylide continuous production system comprises twin screw extruder, and mixing tank is positioned at metallic lithium nozzle, the solvent nozzle of mixing tank, L-type reactor; Metallic lithium nozzle one end is communicated with twin screw extruder, and solvent nozzle is connected with solvent storage device by the solvent supply pipeline; The L-type reactor head is connected by pipeline bottom mixing tank, and its top also is provided with haloalkyl and drips mouth.
Wherein said metallic lithium nozzle is connected with the argon gas air supply channel.
Described mixing tank top is provided with pipeline and is connected with the constant voltage vent valve.
Described L-type reactor also is provided with whipping appts.
Described L-type reactor outer wall is provided with the L-type chuck.
Described twin screw extruder is furnished be used to the automatic feeder that adds the lithium rod.
Beneficial effect:
1, serialization, the automatic production of lithium alkylide have been realized by the utility model system.The speed that adds, temperature of reactor, the pressure and other parameters of each material are controlled the purpose that reaches safety, produces continuously lithium alkylide by computer simulation.
2, the screw rod spray method prepares atomic little metallic lithium sand technology.Adopt screw rod to add and hot-extrudablely be equipped with the argon gas voltage stabilizing and at the uniform velocity extrude spraying to form metallic lithium sand directly cooling for the production of lithium alkylide with solvent, can obtain particle diameter less, more uniform lithium sand.And gained lithium sand is directly used in next step reaction, need not use dispersion agent.
Description of drawings
Fig. 1 lithium alkylide continuous production system schematic diagram
1 is twin screw extruder, and 2 is mixing tank, and 3 is the L-type reactor, 4 is automatic feeder, and 5 is the argon gas air supply channel, and 6 is the constant voltage vent valve, 7 is the solvent supply pipeline, and 8 is solvent nozzle, and 9 is the metallic lithium nozzle, 10 are haloalkyl dropping mouth, 11 is whipping appts, and 12 is the L-type chuck, and 13 is the cooling fluid entrance, 14 is cooling liquid outlet, and 15 is fluid pump.
Embodiment
A kind of lithium alkylide continuous production system shown in Figure 1 comprises twin screw extruder 1, and mixing tank 2 is positioned at metallic lithium nozzle 9, the solvent nozzle 8 of mixing tank 2, L-type reactor 3; Metallic lithium nozzle 9 one ends are communicated with twin screw extruder 1, and solvent nozzle 8 is connected with solvent storage device by solvent supply pipeline 7; L-type reactor 3 tops are connected by pipeline with mixing tank 2 bottoms, and its top also is provided with haloalkyl and drips mouthfuls 10.
Described twin screw extruder 1 is furnished be used to the automatic feeder 4 that adds the lithium rod.Metallic lithium nozzle 9 is connected with argon gas air supply channel 5.The reguline metal lithium is entered the hot melt Screw Extrusion and is aided with the argon gas constant voltage after mechanical cutting, by press atomization, the lithium of melting is nebulized spray into mixing tank.Described mixing tank 2 tops are provided with pipeline and are connected with constant voltage vent valve 6, to control the pressure in mixing tank.
Described L-type reactor 3 also is provided with whipping appts 11.By at the uniform velocity being added dropwise to reactor with metallic lithium reaction with the haloalkane of molar weight, the supporting whipping appts of reactor reacts under constantly stirring.
Described L-type reactor 3 outer walls are provided with L-type chuck 12.L-type chuck 12 tops are provided with cooling fluid entrance 13, and L-type chuck 12 bases are provided with cooling liquid outlet 14.When moving, system usually controls temperature of reactor at 30-35 ℃ with the cold diesel oil below-10 ℃ in L-type chuck 12.
working order description: be 10 ︰ 1 with 10mm diameter twin screw extruder 1(length-to-diameter ratio) the airtight automatic feeder 4 of supporting 1L constantly adds the little lithium rod of the long 5mm of diameter 3mm, the speed that adds drops into little lithium rod by 0.8 Grams Per Second, the lithium rod is through the hot melt Screw Extrusion of twin screw extruder 1 and be aided with the argon gas constant voltage, by press atomization, the lithium of melting is nebulized spray in mixing tank 2, speed by 25 Grams Per Seconds sprays into the hexanaphthene of 10 ℃ through solvent nozzle 8 in mixing tank 2 simultaneously, spraying forms metallic lithium sand and enters L-type reactor 3 along pipeline through the hexanaphthene of 10 ℃ is directly cooling.The interior haloalkyl of L-type reactor 3 drips mouthful 10 speed by 11 Grams Per Seconds and drips n-propylcarbinyl chloride, and L-type reactor 3 first halves are provided with whipping appts 11, and L-type reactor 3 outer walls are provided with L-type chuck 12.Cold diesel oil below L-type chuck 12 use-10 ℃ is controlled temperature of reactor at 30-35 ℃, and reaction solution makes L-type reactor liquid level be controlled at 400mm place, paddle wheel top by fluid pump 15(flow control) inflow filter separates to get n-butyllithium solution and by product lithium chloride.
This system per hour can prepare 150L n-Butyl Lithium cyclohexane solution (2.5M), the n-Butyl Lithium that is equivalent to 24 kilograms of foldings hundred, can prepare more than 570 kilogram of n-Butyl Lithium (folding hundred) every day (24 hours), be equivalent to the day output of 1 supporting 1 500L Scattered Kettle of 1000L reactor.
This system automatic control device used is provided with a plurality of safety control key points, and omnidistance work only needs 1 operator.
The utility model is not described part in detail, is the state of the art.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and scope are limited; do not breaking away under the utility model design concept prerequisite; various modification and improvement that those skilled in the art make the technical solution of the utility model; all should fall into protection domain of the present utility model, the technology contents that the utility model is asked for protection all is documented in claims.
Claims (6)
1. a lithium alkylide continuous production system, is characterized in that comprising twin screw extruder (1), and mixing tank (2) is positioned at metallic lithium nozzle (9), the solvent nozzle (8) of mixing tank (2), L-type reactor (3); Metallic lithium nozzle (9) one ends are communicated with twin screw extruder (1), and solvent nozzle (8) is connected with solvent storage device by solvent supply pipeline (7); L-type reactor (3) top is connected by pipeline bottom mixing tank (2), and its top also is provided with haloalkyl and drips mouthful (10).
2. lithium alkylide continuous production system according to claim 1, is characterized in that metallic lithium nozzle (9) is connected with argon gas air supply channel (5).
3. lithium alkylide continuous production system according to claim 1 is characterized in that described mixing tank (2) top is provided with pipeline and is connected with constant voltage vent valve (6).
4. lithium alkylide continuous production system according to claim 1, is characterized in that described L-type reactor (3) also is provided with whipping appts (11).
5. lithium alkylide continuous production system according to claim 1, is characterized in that described L-type reactor (3) outer wall is provided with L-type chuck (12).
6. lithium alkylide continuous production system according to claim 1 is characterized in that described twin screw extruder (1) is furnished be used to the automatic feeder that adds the lithium rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603734 CN203007178U (en) | 2012-11-15 | 2012-11-15 | Continuous production system for lithium alkylide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603734 CN203007178U (en) | 2012-11-15 | 2012-11-15 | Continuous production system for lithium alkylide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203007178U true CN203007178U (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220603734 Withdrawn - After Issue CN203007178U (en) | 2012-11-15 | 2012-11-15 | Continuous production system for lithium alkylide |
Country Status (1)
| Country | Link |
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| CN (1) | CN203007178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964362A (en) * | 2012-11-15 | 2013-03-13 | 宜兴市昌吉利化工有限公司 | Continuous lithium alkylide production system |
| CN111171069A (en) * | 2020-01-15 | 2020-05-19 | 浙江硕而博化工有限公司 | Method and device for preparing hexamethyl disilazane lithium amide solution |
-
2012
- 2012-11-15 CN CN 201220603734 patent/CN203007178U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102964362A (en) * | 2012-11-15 | 2013-03-13 | 宜兴市昌吉利化工有限公司 | Continuous lithium alkylide production system |
| CN111171069A (en) * | 2020-01-15 | 2020-05-19 | 浙江硕而博化工有限公司 | Method and device for preparing hexamethyl disilazane lithium amide solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20150610 |
|
| RGAV | Abandon patent right to avoid regrant |