A device for producing an enaminocarbonyl morpholine intermediate
By designing an automated production unit for dimethomorph intermediates, and adopting a DCS control system and nitrogen protection device, the problems of low efficiency and poor safety of manual operation were solved, achieving the goals of efficient, precise and safe production, and improving product quality and production safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING CYNDA CHEM CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing production process of dimethomorph intermediates, manual operation is inefficient and unsafe, and temperature and pressure control is lagging, which affects product yield and quality.
Design an automated production device that includes components such as a reactor, valves, flow meters, and pumps. The device uses a DCS control system to automatically control the addition of raw materials, temperature, and pressure. Combined with nitrogen protection and a stirring device, it ensures precise control of reaction conditions.
It enables efficient, precise, and safe production of dimethomorph intermediates, reduces human error, improves product quality and production safety, and has real-time data monitoring capabilities, facilitating rapid adjustment of process parameters.
Smart Images
Figure CN224486023U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of chemical production technology, specifically relating to a device for producing dimethomorpholine intermediates. Background Technology
[0002] Dimethomorph is a broad-spectrum fungicide of the morpholine class. It is a specific agent for the control of fungal diseases of the oomycetes and has a good control effect on lower fungal diseases such as downy mildew, downy mildew, late blight, blight (mildew), blight rot, Pythium, and black shank.
[0003] In the production of dimethomorph technical, the intermediate 3,4-dimethoxy-4-chloro-benzophenone is required. The synthesis of this intermediate requires multiple reaction steps, but the existing production methods mainly rely on manual operation. The control of temperature and pressure is lagging, which seriously affects the yield and quality of the product. In addition, manual operation is inefficient and has poor production safety. Summary of the Invention
[0004] The technical problem to be solved by this utility model is to provide a device for producing dimethomorph intermediates. This device overcomes the defects in the prior art, can realize the automated control of the production process, greatly improve production safety, reduce human error, and achieve the goal of efficient, accurate and safe production.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0006] An apparatus for producing dimethomorpholine intermediates includes a reactor. The top of the reactor has a raw material inlet, a solvent inlet, and a gas outlet. The raw material inlet is connected to a high-level tank and a first raw material tank via pipes, valves, flow meters, and pumps. The solvent inlet is connected to a receiving tank and a solvent storage tank via pipes, valves, flow meters, and pumps. The gas outlet is connected to a first condenser, a second condenser, and a solvent storage tank via pipes. The high-level tank is connected to a second raw material tank via pipes, valves, and pumps. The bottom of the reactor has a discharge port. The reactor is also equipped with a remote temperature transmitter, a pressure transmitter, and a steam pressure transmitter. The valves, flow meters, pumps, remote temperature transmitter, pressure transmitter, and steam pressure transmitter are all electrically connected to a DCS control system.
[0007] Preferably, the reactor is equipped with a nitrogen protection device, a temperature control device, and a stirring device; the valves in the reactor include a nitrogen inlet pneumatic regulating valve, a feed pneumatic shut-off valve, a steam pressure transmitter, and a discharge pneumatic shut-off valve. The nitrogen protection device, the temperature control device (temperature control jacket, connected to a temperature control medium input device and a temperature control medium output device), and the stirring device are all electrically connected to the DCS control system.
[0008] Preferably, the high-level tank is equipped with a temperature control jacket, and also with a feed pneumatic shut-off valve, a dual-flange remote level gauge, a drip-feeding pneumatic regulating valve, and a pneumatic emergency shut-off valve. All of the above valves are electrically connected to the DCS control system.
[0009] Preferably, the reactor, the first raw material tank, and the second raw material tank are all equipped with a remote radar level gauge, a remote temperature transmitter, and an online conductivity meter; the remote radar level gauge, the remote temperature transmitter, and the online conductivity meter are all electrically connected to the DCS control system; each of them is equipped with a discharge port at its bottom, and each discharge port is equipped with a pneumatic shut-off valve.
[0010] Preferably, both the first and second condensers are equipped with liquid outlets at their bottoms, and these outlets are connected to the receiving tank via pipes. The condensed solvent can then be reused to reduce costs and increase efficiency.
[0011] Preferably, the receiving tank is provided with an air outlet, which is connected to the conveying pipe between the first condenser and the second condenser via a pipeline.
[0012] Preferably, the pump between the reactor and the first raw material tank is a first transfer pump, the pump between the high-level tank and the second raw material tank is a second transfer pump, and the pump between the solvent storage tank and the receiving tank is a third transfer pump.
[0013] Preferably, the pump installed between the reactor and the receiving tank is a reflux pump, and the outlet of the reflux pump is equipped with a rotor flow meter and a pneumatic flow regulating valve. Both the rotor flow meter and the pneumatic flow regulating valve are electrically connected to the DCS control system (the rotor flow meter controls the valve opening of the pneumatic flow regulating valve, and the valve opening controls the reflux flow).
[0014] Preferably, the solvent storage tank is equipped with a nitrogen protection device and a vacuum device, as well as a magnetic float remote level gauge, a pneumatic shut-off valve, a nitrogen pneumatic regulating valve, and a vacuum pneumatic regulating valve. All of the above devices are electrically connected to the DCS control system.
[0015] The nitrogen protection device includes a nitrogen supply storage tank and related nitrogen input pipelines and valves, the vacuum pumping device includes corresponding pipelines, valves and vacuum pumps, and an exhaust gas treatment device connected to the vacuum pump.
[0016] Due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0017] This invention uses an automatic control system to control valves and pumps, enabling the addition of raw materials and the adjustment of process conditions to be under automatic control. This ensures precise control of the reaction process, reduces human intervention, improves product quality and production safety, reduces energy consumption, and achieves the goal of efficient and environmentally friendly production.
[0018] In addition, this utility model also has a real-time data monitoring function, which can provide immediate feedback on the production status, facilitate quick adjustment of process parameters, and ensure that the production process is always in the optimal state. Attached Figure Description
[0019] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;
[0020] In the diagram, 1 is the reactor; 2 is the high-level tank; 3 is the first raw material tank; 4 is the receiving tank; 5 is the solvent storage tank; 6 is the first condenser; 7 is the second condenser; 8 is the second raw material tank; 9 is the first transfer pump; 10 is the second transfer pump; and 11 is the third transfer pump. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Example 1:
[0023] like Figure 1 As shown, a device for producing dimethomorpholine intermediates includes a reactor 1. The top of the reactor 1 has a raw material inlet (not shown), a solvent inlet (not shown), and a gas outlet (not shown). The raw material inlet of the reactor 1 is connected to a high-level tank 2 and a first raw material tank 3 via pipes (not shown), valves (not shown), a flow meter (not shown), and a pump (not shown), respectively. The solvent inlet of the reactor 1 is connected to a receiving tank 4 and a solvent storage tank 5 sequentially via pipes, valves, a flow meter, and a pump. The gas outlet is connected in sequence to the first condenser 6, the second condenser 7, and the solvent storage tank 5 via pipelines; the high-level tank 2 is connected to the second raw material tank 8 via pipelines, valves, and pumps; the bottom of the reactor 1 is equipped with a discharge port (not marked); the reactor 1 is also equipped with a remote temperature transmitter (not marked), a pressure transmitter (not marked), and a steam pressure transmitter (not marked); the valves, flow meters, pumps, remote temperature transmitters, pressure transmitters, and steam pressure transmitters are all electrically connected to the DCS control system (not marked).
[0024] The pump between the reactor 1 and the first raw material tank 3 is the first transfer pump 9, the pump between the high-level tank 2 and the second raw material tank 8 is the second transfer pump 10, and the pump between the solvent storage tank 5 and the receiving tank 4 is the third transfer pump 11.
[0025] In actual production: First, nitrogen gas is filled into reactor 1 and receiving tank 4 through a nitrogen protection device (not shown). Then, the o-phthalic ether raw material in the second raw material tank 8 is transported to the high-level tank 2 through the second transfer pump 10. Then, the o-phthalic ether is precisely added to reactor 1 through a flow meter (not shown) and a pneumatic regulating valve (not shown) installed between the high-level tank 2 and reactor 1. At the same time, the p-chlorobenzoyl chloride raw material in the first raw material tank 3 is transported to reactor 1 through the first transfer pump 9 and a flow meter. The solvent in the solvent storage tank 5 is transported to receiving tank 4 through the third transfer pump 11. Then, the solvent is transferred to reactor 1 through a reflux pump (not shown) between receiving tank 4 and reactor 1. The corresponding flow meter The solvent is delivered to reactor 1 for reaction. Reactor 1 uses a steam pneumatic regulating valve (not shown) to precisely control the heating and heat preservation process to ensure a stable reaction temperature. The stirring speed is controlled by a stirring device (not shown) to ensure uniform mixing of materials and complete reaction. The reaction conditions such as temperature and pressure inside reactor 1 are monitored and adjusted in real time.
[0026] The vapor generated during the reaction (mainly the evaporated solvent) enters the first condenser 6 and the second condenser 7 through pipelines for cooling. After condensation, it is returned to the solvent storage tank 5 or the receiving tank 4 for reuse. After the reaction is completed, the material is discharged from the outlet at the bottom of the reactor 1, thus obtaining the intermediate 3,4-dimethoxy-4-chloro-benzophenone of the dimethomorph technical, which is then processed in the subsequent equipment.
[0027] During production, the liquid level, pressure, and moisture content in the solvent in receiving tank 4 also need to be monitored and adjusted in real time. This can be done through the liquid level gauge (not marked), conductivity meter (not marked), nitrogen regulating valve (not marked), vacuum pneumatic regulating valve (not marked), flow meter, etc. installed in receiving tank 4.
[0028] In summary, the overall automated design of this utility model significantly improves production safety, reduces human error, and achieves the goals of efficient, precise, and safe production.
[0029] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.
Claims
1. An apparatus for producing dimethomorpholine intermediates, characterized in that: The reactor includes a reaction vessel with a raw material inlet, a solvent inlet, and a gas outlet at its top. The raw material inlet is connected to a high-level tank and a first raw material tank via pipes, valves, flow meters, and pumps. The solvent inlet is connected to a receiving tank and a solvent storage tank via pipes, valves, flow meters, and pumps. The gas outlet is connected to a first condenser, a second condenser, and a solvent storage tank via pipes. The high-level tank is connected to a second raw material tank via pipes, valves, and pumps. The reactor has a discharge port at its bottom. The reactor also includes a remote temperature transmitter, a pressure transmitter, and a steam pressure transmitter. The valves, flow meters, pumps, remote temperature transmitter, pressure transmitter, and steam pressure transmitter are all electrically connected to a DCS control system.
2. The apparatus for producing dimethomorpholine intermediates as described in claim 1, characterized in that: The reactor is equipped with a nitrogen protection device, a temperature control device, and a stirring device.
3. The apparatus for producing dimethomorpholine intermediates as described in claim 1, characterized in that: The high-level tank is equipped with a temperature-controlled jacket.
4. The apparatus for producing dimethomorpholine intermediates as described in claim 1, characterized in that: The reactor, the first raw material tank, and the second raw material tank are all equipped with remote radar level gauges, remote temperature transmitters, and online conductivity meters.
5. The apparatus for producing dimethomorpholine intermediates as described in claim 1, characterized in that: Both the first condenser and the second condenser have liquid outlets at their bottoms, and these liquid outlets are connected to the receiving tank via pipes.
6. The apparatus for producing dimethomorpholine intermediates as described in claim 1, characterized in that: The receiving tank is provided with an air outlet, which is connected to the material conveying pipe between the first condenser and the second condenser through a pipeline.
7. The apparatus for producing dimethomorpholine intermediates as described in claim 1, characterized in that: The solvent storage tank is equipped with a nitrogen protection device and a vacuum pumping device.