CN216024823U - Continuous production equipment for methyl tin mercaptide - Google Patents
Continuous production equipment for methyl tin mercaptide Download PDFInfo
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- CN216024823U CN216024823U CN202121371026.9U CN202121371026U CN216024823U CN 216024823 U CN216024823 U CN 216024823U CN 202121371026 U CN202121371026 U CN 202121371026U CN 216024823 U CN216024823 U CN 216024823U
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- esterification reaction
- methyl tin
- tin mercaptide
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Abstract
The utility model discloses continuous production equipment of methyl tin mercaptide. The equipment comprises a mixing tank, a phase splitting tower, a water washing tower, an oil phase tank, a decoloring tower, two drying devices and three esterification reaction kettles; the mixing tank and the three esterification reaction kettles are communicated through an overflow pipeline in sequence, the last esterification reaction kettle is communicated with a liquid inlet of the phase separation tower, an upper liquid outlet of the phase separation tower is communicated with a water washing tower, and the water washing tower, the oil phase tank and the two drying devices are communicated through a connecting pipeline in sequence; be equipped with first rabbling mechanism in the hybrid tank, all be equipped with second rabbling mechanism in the esterification reaction cauldron, all be equipped with into liquid alkali mouth and pH detector on first esterification reaction cauldron and the second esterification reaction cauldron, the second esterification reaction cauldron is equipped with temperature control mechanism. The equipment reduces the waste of materials and field operators, saves the labor cost, and finally obtains a product with small performance difference and high stability. Therefore, the method is more suitable for large-scale industrial production and is more favorable for market competition.
Description
Technical Field
The utility model relates to the technical field of chemical industry, in particular to continuous production equipment of methyl tin mercaptide.
Background
The organic tin heat stabilizer is an important fine chemical, and is an excellent raw material for preparing the heat stabilizer of the polyvinyl chloride (PVC) plastic product. The industrial research on the production of the methyl tin mercaptide as a representative product of the organic tin is more and more emphasized, and the current main production process is a batch production method.
The intermittent production method produces products with large batch difference, poor stability, large required labor cost, poor field operation environment and high probability of misoperation, and is not favorable for strong market competition.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide continuous production equipment for methyl tin mercaptide, which has high quality and high stability of produced products and reduces labor cost, aiming at the defects in the prior art.
The utility model relates to continuous production equipment of methyl tin mercaptide, which comprises a mixing tank, a phase separation tower, a water washing tower, an oil phase tank, a decoloring tower, two drying devices and three esterification reaction kettles, wherein the mixing tank is connected with the phase separation tower; the mixing tank and the three esterification reaction kettles are communicated through an overflow pipeline in sequence, the last esterification reaction kettle is communicated with a liquid inlet of the phase splitting tower, an upper liquid outlet of the phase splitting tower is communicated with the water washing tower, the oil phase tank and the two drying devices are communicated through a connecting pipeline in sequence, materials in the oil phase tank are dried through the two drying devices to obtain a methyl tin mercaptide crude product, and the decoloring tower decolors the methyl tin mercaptide crude product to obtain a methyl tin mercaptide finished product; be equipped with the first rabbling mechanism that is used for stirring inside material in the hybrid tank, all be equipped with the second rabbling mechanism that is used for stirring inside material in the esterification reaction cauldron, all be equipped with into liquid alkali mouth and pH detector on first esterification reaction cauldron and the second esterification reaction cauldron, second esterification reaction cauldron is equipped with the temperature control mechanism that is used for controlling its inside material temperature.
Further, the liquid caustic soda inlet is communicated with a liquid caustic soda source through a liquid inlet pipeline, and the liquid inlet pipeline is provided with an adjusting valve and a flowmeter.
Further, the equipment also comprises a plate-and-frame filter press, and the plate-and-frame filter press is arranged between the phase separation tower and the water washing tower.
Further, the equipment also comprises a plate frame dehydrator, wherein the plate frame dehydrator is used for dehydrating the methyl tin mercaptide finished product.
Further, the second esterification reaction kettle is an interlayer reaction kettle, an interlayer of the second esterification reaction kettle forms an air chamber, and a circulating water inlet and a circulating water outlet which are communicated with the inside of the air chamber are arranged on the air chamber; the temperature control mechanism comprises a temperature sensor and a circulating hot water source, the temperature sensor is used for detecting the temperature of the material, the circulating hot water source is communicated with a circulating water inlet, and a first automatic regulating valve is arranged at the circulating water inlet.
Further, a discharge hole of each esterification reaction kettle is positioned at the upper end of the esterification reaction kettle; the horizontal height of the discharge hole of the esterification reaction kettle is larger than that of the feed hole of the next reaction.
Furthermore, the overflow pipelines are all provided with visual cups.
Furthermore, first rabbling mechanism includes first motor and first stirring rake, first motor sets up the top of blending tank, the one end of first stirring rake is located in the blending tank, the other end stretches out the blending tank with the drive end transmission of first motor is connected.
Furthermore, the second stirring mechanism comprises a second motor and a second stirring paddle, the second motor is arranged at the top end of the esterification reaction kettle, one end of the second stirring paddle is located in the esterification reaction kettle, and the other end of the second stirring paddle extends out of the esterification reaction kettle and is in transmission connection with the driving end of the second motor.
Further, the drying devices comprise a thin film evaporator and a wiped film evaporator which are connected in series.
The continuous production equipment of methyl tin mercaptide, disclosed by the utility model, is characterized in that an aqueous solution obtained by mixing methyl tin trichloride and dimethyl tin dichloride according to a certain proportion and mercaptoester are uniformly mixed in a mixing tank according to a certain proportion, the mixed material overflows to a first esterification reaction kettle to carry out esterification reaction, meanwhile, liquid alkali is added to carry out neutralization, and the pH value is adjusted to be 3.8-7.2; then overflowing to a second esterification reaction kettle for temperature rise reaction, controlling the temperature to be 40-60 ℃, simultaneously dropwise adding liquid caustic soda to keep the pH value range unchanged, then overflowing to a third esterification reaction kettle, separating an oil phase and a water phase from the material of the third esterification reaction kettle through a phase separation tower, removing impurities contained in the oil phase through a water washing tower, and then entering an oil phase tank; and (3) the material in the oil phase tank passes through two drying devices to obtain a crude product of the methyl tin mercaptide, and the crude product of the methyl tin mercaptide is obtained through a decoloring tower.
The continuous production equipment for methyl tin mercaptide adopts automatic continuous production, reduces frequent manual operation in intermittent production, reduces misoperation, reduces material waste, reduces field operators, saves labor cost, and finally obtains products with small performance difference and high stability. Therefore, the method is more suitable for large-scale industrial production and is more favorable for market competition.
Drawings
FIG. 1 is a schematic structural diagram of a continuous production apparatus for methyl tin mercaptide according to the present invention.
1. A mixing tank; 11. a first stirring mechanism; 111. a first motor; 112. a first stirring paddle; 2. a phase splitting tower; 3. washing the tower with water; 4. an oil phase tank; 5. a bleaching tower; 6. a drying device; 61. a thin film evaporator; 62. a wiped film evaporator; 7. an esterification reaction kettle; 71. a second stirring mechanism; 711. a second motor; 712. a second stirring paddle; 72. a liquid caustic inlet; 73. a pH detector; 74. a temperature control mechanism; 741. a temperature sensor; 75. a liquid inlet pipeline; 76. adjusting a valve; 77. a flow meter; 78. an air chamber; 781. a circulating water inlet; 782. a circulating water outlet; 8. a plate-and-frame filter press; 9. a plate frame dehydrator; 10. an overflow line; 20. connecting a pipeline; 30. a visual cup.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the continuous production equipment of methyl tin mercaptide of the present invention comprises a mixing tank 1, a phase separation tower 2, a water washing tower 3, an oil phase tank 4, a decoloring tower 5, two drying devices 6 and three esterification reaction kettles 7; the mixing tank 1 and the three esterification reaction kettles 7 are communicated through an overflow pipeline 10 in sequence, the last esterification reaction kettle 7 is communicated with a liquid inlet of the phase separation tower 2, an upper liquid outlet of the phase separation tower 2 is communicated with the water washing tower 3, the oil phase tank 4 and the two drying devices 6 are communicated through a connecting pipeline 20 in sequence, materials in the oil phase tank 4 are dried through the two drying devices 6 to obtain a methyl tin mercaptide crude product, and the decoloring tower 5 decolors the methyl tin mercaptide crude product to obtain a methyl tin mercaptide finished product; be equipped with the first rabbling mechanism 11 that is used for stirring inside material in the blending tank 1, all be equipped with the second rabbling mechanism 71 that is used for stirring inside material in the esterification reaction cauldron 7, all be equipped with into liquid alkali mouth 72 and pH meter 73 on first esterification reaction cauldron 7 and the second esterification reaction cauldron 7, second esterification reaction cauldron 7 is equipped with the temperature-control mechanism 74 that is used for controlling its inside material temperature.
According to the continuous production equipment of the methyl tin mercaptide, an aqueous solution obtained by mixing methyl tin trichloride and dimethyl tin dichloride according to a certain proportion and mercaptoester are uniformly mixed in a mixing tank 1 according to a certain proportion, the mixed material overflows to a first esterification reaction kettle 7 to perform esterification reaction, liquid alkali is added for neutralization, a pH detector 73 is used for detection, and the pH value is adjusted to be 3.8-7.2; then overflowing to a second esterification reaction kettle 7 for temperature rise reaction, controlling the temperature at 40-60 ℃, simultaneously dropwise adding liquid caustic soda to keep the pH value range unchanged, then overflowing to a third esterification reaction kettle 7, separating the material of the third esterification reaction kettle 7 into an oil phase and a water phase through a phase separation tower 2, removing impurities contained in the oil phase through a water washing tower 3, and then entering an oil phase tank 4; the material in the oil phase tank 4 passes through two drying devices 6 to obtain a crude product of the methyl tin mercaptide, and then passes through a decoloring tower 5 to obtain a finished product of the methyl tin mercaptide.
The continuous production equipment for methyl tin mercaptide adopts automatic continuous production, reduces frequent manual operation in intermittent production, reduces misoperation, reduces material waste, reduces field operators, saves labor cost, and finally obtains products with small performance difference and high stability. Therefore, the method is more suitable for large-scale industrial production and is more favorable for market competition.
The liquid caustic soda inlet 72 can be communicated with a liquid caustic soda source through a liquid inlet pipeline 75, and the liquid inlet pipeline 75 is provided with an adjusting valve 76 and a flow meter 77, so that the flow of the liquid inlet pipeline 75 can be regulated and controlled in real time through the pH value measured by the pH detector 73.
The equipment can also include plate and frame filter press 8, and plate and frame filter press 8 sets up between phase separation tower 2 and water wash tower 3, and the oil phase of phase separation tower 2 separation can contain partial flocculus, consequently before intaking water wash tower 3, filters the flocculus through plate and frame filter press 8 earlier to avoid blockking up equipment and the pipeline of back process.
The equipment can also comprise a plate frame dehydrator 9, the plate frame dehydrator 9 is used for dehydrating the methyl tin mercaptide finished product, the finished product coming out of the decoloring tower 5 is subjected to the plate frame dehydrator 9 to remove residual moisture, and the product quality obtained in the way is better.
The second esterification reaction kettle 7 can be a sandwich reaction kettle, a sandwich layer forms an air chamber 78, and a circulating water inlet 781 and a circulating water outlet 782 which are communicated with the air chamber 78 are arranged on the air chamber 78; temperature-controlled mechanism 74 is including being used for detecting temperature sensor 741 and the circulation hot water source of material temperature, and the circulation hot water source is linked together with circulating water import 781, and circulating water import 781 is equipped with first automatically regulated valve 76. The reaction for chemically synthesizing methyl tin mercaptide is an endothermic reaction, the temperature sensor 741 detects the internal temperature, the first automatic regulating valve 76 controls the circulating hot water source, and the temperature in the second esterification reaction kettle 7 is controlled to be 40-60 ℃.
The discharge hole of each esterification reaction kettle 7 is positioned at the upper end of the esterification reaction kettle 7; increase the inner chamber material volume of every esterification reaction cauldron 7, the level of esterification reaction cauldron 7's discharge gate all is greater than the level of the feed inlet of next reaction, is favorable to like this that the material flows to next esterification reaction cauldron 7 from an esterification reaction cauldron 7, avoids overflow pipe 10 to block up.
The overflow pipeline 10 is provided with a visual cup 30, which is convenient for observing the condition in the overflow pipeline 10.
The first stirring mechanism 11 has various structures, which are not limited herein, in this embodiment, the first stirring mechanism 11 may include a first motor 111 and a first stirring paddle 112, the first motor 111 is disposed at the top end of the mixing tank 1, one end of the first stirring paddle 112 is located in the mixing tank 1, the other end of the first stirring paddle 112 extends out of the mixing tank 1 and is in transmission connection with the driving end of the first motor 111, and the first motor 111 drives the first stirring paddle 112 to stir the material in the mixing tank 1.
The structure of the second stirring mechanism 71 is various, and is not limited herein, in this embodiment, the second stirring mechanism 71 may include a second motor 711 and a second stirring paddle 712, the second motor 711 is disposed at the top end of the esterification reaction kettle 7, one end of the second stirring paddle 712 is located in the esterification reaction kettle 7, the other end of the second stirring paddle 712 extends out of the esterification reaction kettle 7 and is in transmission connection with the driving end of the second motor 711, and the second motor 711 drives the second stirring paddle 712 to rotate and stir the materials in the esterification reaction kettle 7.
The drying device 6 has various structures, which are not limited herein, and in the present embodiment, the drying device 6 may include a thin film evaporator 61 and a wiped film evaporator 62 in series. The drying temperature of the first drying device 6 is controlled to be 50-90 ℃, the drying temperature of the second drying device 6 is controlled to be 100-180 ℃, and the vacuum degree of drying of the drying device 6 is controlled to be-0.08-0.1 Mpa.
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing is illustrative only and is not limiting of the scope of the utility model, as various modifications or additions may be made to the specific embodiments described and substituted in a similar manner by those skilled in the art without departing from the scope of the utility model as defined in the appending claims. It should be understood by those skilled in the art that any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. A continuous production facility of methyl tin mercaptide which characterized in that: comprises a mixing tank (1), a phase separation tower (2), a water washing tower (3), an oil phase tank (4), a decoloring tower (5), two drying devices (6) and three esterification reaction kettles (7); the mixing tank (1) is communicated with the three esterification reaction kettles (7) sequentially through an overflow pipeline (10), the last esterification reaction kettle (7) is communicated with a liquid inlet of the phase separation tower (2), an upper liquid outlet of the phase separation tower (2) is communicated with the water washing tower (3), the oil phase tank (4) and the two drying devices (6) are communicated sequentially through a connecting pipeline (20), materials in the oil phase tank (4) are dried through the two drying devices (6) to obtain a methyl tin mercaptide crude product, and the decoloring tower (5) decolors the methyl tin mercaptide crude product to obtain a methyl tin mercaptide finished product; be equipped with first rabbling mechanism (11) that are used for stirring inside material in blending tank (1), all be equipped with second rabbling mechanism (71) that are used for stirring inside material in esterification reaction cauldron (7), all be equipped with into liquid alkali mouth (72) and pH on first esterification reaction cauldron (7) and second esterification reaction cauldron (7) and detect meter (73), second esterification reaction cauldron (7) are equipped with temperature control mechanism (74) that are used for controlling its inside material temperature.
2. The continuous production apparatus of methyl tin mercaptide according to claim 1, wherein: the liquid caustic soda inlet (72) is communicated with a liquid caustic soda source through a liquid inlet pipeline (75), and the liquid inlet pipeline (75) is provided with an adjusting valve (76) and a flowmeter (77).
3. The continuous production apparatus of methyl tin mercaptide according to claim 1, wherein: the equipment further comprises a plate-and-frame filter press (8), wherein the plate-and-frame filter press (8) is arranged between the phase separation tower (2) and the water washing tower (3).
4. The continuous production apparatus of methyl tin mercaptide according to claim 3, wherein: the equipment also comprises a plate frame dehydrator (9), wherein the plate frame dehydrator (9) is used for dehydrating the methyl tin mercaptide finished product.
5. The continuous production apparatus of methyl tin mercaptide according to any one of claims 1 to 4, wherein: the second esterification reaction kettle (7) is an interlayer reaction kettle, an interlayer of the interlayer forms an air chamber (78), and a circulating water inlet (781) and a circulating water outlet (782) which are communicated with the air chamber (78) are arranged on the air chamber (78); temperature-controlled mechanism (74) is including temperature sensor (741) and the circulation hot water source that is used for detecting material temperature, the circulation hot water source is linked together with circulating water import (781), circulating water import (781) is equipped with first automatically regulated valve (76).
6. The continuous production apparatus of methyl tin mercaptide according to any one of claims 1 to 4, wherein: the discharge hole of each esterification reaction kettle (7) is positioned at the upper end of the esterification reaction kettle (7); the horizontal height of the discharge hole of the esterification reaction kettle (7) is larger than that of the feed hole of the next reaction.
7. The continuous production apparatus of methyl tin mercaptide according to any one of claims 1 to 4, wherein: and the overflow pipelines (10) are provided with visual cups (30).
8. The continuous production apparatus of methyl tin mercaptide according to any one of claims 1 to 4, wherein: first rabbling mechanism (11) include first motor (111) and first stirring rake (112), first motor (111) set up the top of blending tank (1), the one end of first stirring rake (112) is located in blending tank (1), the other end stretches out blending tank (1) with the drive end transmission of first motor (111) is connected.
9. The continuous production apparatus of methyl tin mercaptide according to any one of claims 1 to 4, wherein: the second stirring mechanism (71) comprises a second motor (711) and a second stirring paddle (712), the second motor (711) is arranged at the top end of the esterification reaction kettle (7), one end of the second stirring paddle (712) is located in the esterification reaction kettle (7), and the other end of the second stirring paddle extends out of the esterification reaction kettle (7) and is in transmission connection with the driving end of the second motor (711).
10. The continuous production apparatus of methyl tin mercaptide according to any one of claims 1 to 4, wherein: the drying devices (6) each comprise a thin film evaporator (61) and a wiped film evaporator (62) in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121371026.9U CN216024823U (en) | 2021-06-18 | 2021-06-18 | Continuous production equipment for methyl tin mercaptide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121371026.9U CN216024823U (en) | 2021-06-18 | 2021-06-18 | Continuous production equipment for methyl tin mercaptide |
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| Publication Number | Publication Date |
|---|---|
| CN216024823U true CN216024823U (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121371026.9U Active CN216024823U (en) | 2021-06-18 | 2021-06-18 | Continuous production equipment for methyl tin mercaptide |
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| CN (1) | CN216024823U (en) |
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2021
- 2021-06-18 CN CN202121371026.9U patent/CN216024823U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A continuous production equipment for thiol methyl tin Effective date of registration: 20230703 Granted publication date: 20220315 Pledgee: China Construction Bank Suizhou Chengzhong Sub branch Pledgor: HUBEI BENXING NEW MATERIAL Co. Registration number: Y2023980046921 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230807 Granted publication date: 20220315 Pledgee: China Construction Bank Suizhou Chengzhong Sub branch Pledgor: HUBEI BENXING NEW MATERIAL Co. Registration number: Y2023980046921 |