Method for continuously producing brominated polystyrene

Abstract

The invention relates to the technical field of high polymer materials, and discloses a method for continuously producing brominated polystyrene, which comprises the following steps: I, preparing raw materials, ensuring the basic quality of the product by high-quality raw materials, and optimizing reaction conditions, improving the yield and reducing unnecessary byproducts by correct selection; step II, premixing and heating, full premixing ensures the consistency of the materials, and more uniform reaction can be realized. According to the method for continuously producing brominated polystyrene, continuous supply of materials is ensured by utilizing an automatic storage and conveying system, uniform dispersion and stable temperature rise of the materials are ensured by adopting a continuous feeding mixer and an indirect heating system, and efficient bromination reaction is performed by using a microchannel reactor; products are rapidly separated and purified by means of a continuous centrifugal separator and a membrane separation technology, and an automatic quality control system is combined with multiple analytical instruments to ensure that the quality of each batch of products is consistent, so that the effect of efficient, stable and continuous production can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of polymer materials, in particular to a method for continuously producing brominated polystyrene. Background Art

[0002] Brominated polystyrene is an additive flame retardant commonly used in materials such as plastics, rubber, coatings and adhesives to improve the fire resistance of these materials. It inhibits flame propagation by releasing halogen free radicals during combustion and can provide good flame retardant effects at low addition levels.

[0003] Brominated polystyrene, as an important flame retardant, is widely used in fire safety in electronic appliances, building materials and other fields. Traditionally, the production of brominated polystyrene mostly adopts intermittent reactions, but the production cycle is long, the energy consumption is high, and the quality of the product fluctuates greatly between batches. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the existing technology, the present invention provides a method for continuously producing brominated polystyrene, which has the advantages of high efficiency, stable continuous production, etc., and solves the problems of the above-mentioned technology.

[0006] Technical Solution

[0007] To achieve the above object, the present invention provides the following technical solution: a method for continuously producing brominated polystyrene, comprising the following steps:

[0008] Step I: Raw material preparation. High-quality raw materials ensure the basic quality of the product, and correct selection can optimize reaction conditions, increase yield and reduce unnecessary by-products.

[0009] Step II: Premixing and heating. Sufficient premixing ensures the consistency of the materials and helps achieve a more uniform reaction. Appropriate heating speeds up the dissolution rate and creates good conditions for the subsequent chemical reaction.

[0010] ① Ultrasonic activation: An ultrasonic activation step is introduced to treat the preheated material before it enters the bromination reactor to promote the activation of the molecular chain and improve the bromination efficiency;

[0011] Step III: Bromination reaction: Precise control of reaction conditions can maximize conversion while maintaining stable product quality and reducing impurity formation;

[0012] ②Online monitoring and feedback control: Install online analytical instruments to monitor the bromination reaction process in real time and feed the data back to the control system to automatically adjust the reaction conditions to ensure the consistency of product quality;

[0013] Step IV: Separation and purification. An effective separation and purification process not only improves the purity of the product, but also reduces potential risks in subsequent applications, ensuring that the final product meets strict quality standards.

[0014] ③ Rapid quality screening: Using non-destructive rapid detection technology, the sample is immediately screened for preliminary quality after separation and purification, to identify problems in advance and adjust process parameters in a timely manner;

[0015] Step V: Finished product testing ensures consistent and reliable quality for each batch of products, enhances customer trust, and provides data support for continuous improvement of production processes;

[0016] Step VI: Environmental protection measures help protect the natural environment, comply with regulatory requirements, maintain corporate image and social responsibility, and may also bring opportunities for cost savings and resource recovery.

[0017] Preferably, the raw material preparation includes selecting raw materials, solvent selection and bromine source preparation, selecting high-purity polystyrene as the substrate, and determining the appropriate molecular weight distribution according to the application requirements of the final product, selecting an organic solvent that can dissolve polystyrene and is harmless to subsequent reactions, using liquid bromine or safer NBS, introducing raw material pretreatment, pre-treating polystyrene, for example, through surface modification or molecular weight adjustment to enhance its reactivity with the bromine source and improve bromination efficiency, establishing an intelligent warehousing system, using equipment such as automatic guided vehicles or conveyor belts, ensuring that raw materials such as polystyrene particles, solvents and bromine sources can be accurately delivered to each processing point as needed, and tracking material batches through barcodes or RFID tags to ensure traceability.

[0018] Preferably, the premixing and heating include premixing and heating, mixing the polystyrene with the selected solvent to form a uniformly dispersed solution, and sending the mixed solution into a preheating zone. At this stage, the material temperature is gradually raised to a suitable reaction temperature by indirect heating, using ultrasonic mixing and electromagnetic induction heating.

[0019] Preferably, the bromination reaction uses a specially designed continuous flow reactor system, which contains static mixing elements to ensure that the materials are fully contacted and quickly reach a uniform dispersion state. The temperature is maintained in an appropriate range of 80°C-150°C to promote the bromination reaction without destroying the polystyrene structure. A suitable pressure level is maintained to prevent the escape of volatile components while ensuring the safe progress of the reaction. The residence time of the materials in the reactor is precisely controlled to ensure sufficient reaction degree but not excessive reaction that increases by-products. A small amount of catalyst or auxiliary agent is added as needed to accelerate the bromination process or improve product performance. The use of a microchannel reactor can significantly improve mass transfer and heat transfer efficiency.

[0020] Preferably, the separation and purification includes solid-liquid separation, washing and drying. The crude product solution generated by the bromination reaction then enters a solid-liquid separation unit, and a centrifuge or a filtering device is used to remove unreacted raw materials and other impurities. The impurities remaining on the surface of the product are cleaned with an appropriate solvent to ensure its purity. Vacuum drying or other effective methods are used to remove moisture and solvent to obtain a dry product. A selective permeable membrane is introduced, and green solvents such as supercritical carbon dioxide are used instead of traditional organic solvents for extraction.

[0021] Preferably, the finished product inspection finally carries out a comprehensive quality inspection on the obtained product, including physical and chemical property testing, flame retardant effect evaluation and safety inspection, to ensure that all indicators meet the relevant standards.

[0022] Preferably, the environmental protection measures include waste gas treatment, wastewater treatment and solid waste disposal, installation of effective tail gas purification equipment, gas generated during the treatment process, establishment of a complete sewage treatment system, and ensuring that emissions comply with environmental protection regulations.

[0023] Compared with the prior art, the present invention provides a method for continuously producing brominated polystyrene, which has the following beneficial effects:

[0024] The method for continuously producing brominated polystyrene utilizes an automatic storage and conveying system to ensure a continuous supply of materials, adopts a continuous feed mixer and an indirect heating system to ensure uniform dispersion and stable temperature rise of the materials, uses a microchannel reactor to carry out an efficient bromination reaction, and utilizes a continuous centrifugal separator and membrane separation technology to quickly separate and purify the product. An automated quality control system combined with multiple analytical instruments ensures consistent quality of each batch of products, thereby achieving efficient, stable and continuous production. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] A method for continuously producing brominated polystyrene comprises the following steps:

[0027] Step I: Raw material preparation. High-quality raw materials ensure the basic quality of the product. Correct selection can optimize reaction conditions, increase yield, and reduce unnecessary byproducts. Select high-purity polystyrene, a suitable solvent, and a safe and effective bromine source, and ensure that these raw materials are fed into the production line in a precise ratio and sequence. High-quality raw materials ensure basic quality and reduce the impact of impurities. The correct ratio helps optimize reaction conditions, increase yield, and provide the necessary material foundation for subsequent chemical reactions. Automated material management is achieved through an automated storage and transportation system to ensure production stability and traceability.

[0028] Step II: Premixing and Heating. Sufficient premixing ensures material consistency and helps achieve a more uniform reaction. Appropriate heating accelerates the dissolution rate, creating favorable conditions for the subsequent chemical reaction. The selected polystyrene and solvent are mixed evenly, and the material temperature is gradually raised to the appropriate reaction temperature through indirect heating. Sufficient premixing ensures material consistency and helps achieve a more uniform reaction. Appropriate heating accelerates the dissolution rate, creating favorable conditions for the subsequent chemical reaction, ensuring that the material is in optimal condition before entering the reactor to promote efficient chemical conversion. The use of a continuous feed mixer and indirect heating system can maintain stable material flow rate and temperature control, reducing batch-to-batch variability.

[0029] ① Ultrasonic activation: An ultrasonic activation step is introduced to treat the preheated material before it enters the bromination reactor to promote the activation of the molecular chains and improve the bromination efficiency. Ultrasonic activation refers to the use of high-frequency sound waves (ultrasound) to treat the material between premixing and bromination. The energy of the ultrasound can cause bubbles in the liquid to form and burst rapidly (cavitation effect), creating a local high temperature and high pressure environment, thereby accelerating the activation of the molecular chains and promoting the occurrence of chemical reactions. Ultrasonic waves can destroy the interaction between polystyrene molecular chains, making them more likely to react with the bromine source, thereby improving the bromination efficiency. Through ultrasonic vibration, it can ensure that the raw materials are more evenly dispersed in the solvent, reduce agglomeration, and further increase the reaction rate;

[0030] Step III: Bromination reaction: Precise control of reaction conditions can maximize conversion while maintaining stable product quality and reducing impurity formation. Polystyrene chemically reacts with a bromine source, introducing bromine atoms into the molecular chain to produce the target product—brominated polystyrene. Precise control of reaction conditions (such as temperature, pressure, and time) can maximize conversion while maintaining stable product quality and reducing by-product formation. The use of microchannel reactors and online monitoring technology can significantly improve reaction efficiency, reduce energy consumption, and ensure that reaction conditions are always optimal.

[0031] ② Online monitoring and feedback control: Install online analytical instruments to monitor the progress of the bromination reaction in real time, and feed the data back to the control system to automatically adjust the reaction conditions to ensure the consistency of product quality. Online monitoring refers to the use of various types of sensors and analytical instruments (such as near-infrared spectrometers NIR, Raman spectrometers, etc.) to monitor key parameters (such as temperature, pressure, and composition changes) in real time throughout the production process. The feedback control system automatically adjusts the operating conditions based on these real-time data to maintain the optimal reaction state. The system can respond immediately to the detected data and correct any deviation from the set value to ensure the consistency of product quality. By learning and analyzing a large amount of historical data, intelligent algorithms can help find the optimal operating conditions and continuously improve the production process. Even in the face of factors such as raw material fluctuations or equipment aging, it can maintain a high level of product quality, promptly detect and solve potential problems, and prevent unqualified products from flowing into the next process, saving costs;

[0032] Step IV: Separation and Purification. An effective separation and purification process not only improves product purity, reduces potential risks in subsequent applications, and ensures that the final product meets strict quality standards, but also separates the target product from the mixture after the bromination reaction and removes residual solvents and other impurities through washing, filtration, or drying. An effective separation and purification process not only improves product purity, but also reduces potential risks in subsequent applications, ensuring that the final product meets strict quality standards, removes unnecessary components, and retains valuable products in preparation for finished product testing. Continuous centrifuges and membrane separation technologies can efficiently accomplish this task, reducing resource waste and improving production efficiency.

[0033] ③ Rapid quality screening: Using non-destructive rapid detection technology, the sample is immediately screened for preliminary quality after separation and purification, problems are discovered in advance, and process parameters are adjusted in a timely manner. Rapid quality screening is a preliminary quality inspection of the sample immediately after separation and purification, using non-destructive rapid detection technology (such as X-ray fluorescence spectroscopy XRF, nuclear magnetic resonance NMR). This step is designed to quickly evaluate the basic performance indicators of the product and provide a reference for subsequent detailed finished product testing. It can identify possible quality problems at an early stage and allow corrective measures to be taken quickly to prevent the problem from expanding. Compared with traditional comprehensive testing methods, rapid screening greatly shortens the waiting time for results and improves overall production efficiency. Once a problem is found, the production of the relevant batches can be stopped immediately to avoid unnecessary resource consumption. If the screening results show that certain batches of products do not meet the standards, the production line can be flexibly adjusted to reduce losses and help track and solve the root cause of the problem.

[0034] Step V: Finished product testing ensures consistent and reliable quality for each batch of products, enhances customer trust, and provides data support for continuous improvement of production processes. After separation and purification, BPS undergoes comprehensive quality inspections, including physical property testing, chemical composition analysis, and flame retardant effect evaluation, to confirm whether it meets market and technical requirements. Strict finished product testing ensures consistent and reliable quality for each batch of products, enhances customer trust, and provides data support for continuous improvement of production processes. Combining multiple advanced testing methods and big data analysis platforms, quality issues can be quickly and accurately identified, allowing for timely adjustment of process parameters.

[0035] Step VI: Environmental protection measures help protect the natural environment, comply with legal requirements, maintain corporate image and social responsibility, and may also bring opportunities for cost savings and resource recovery. Good environmental protection practices help protect the natural environment, comply with legal requirements, maintain corporate image and social responsibility, and may also bring opportunities for cost savings and resource recovery, ensuring that production activities will not have a negative impact on the outside world, and promoting the application and development of green manufacturing concepts. By building a closed-loop system and applying advanced technologies such as low-temperature plasma treatment, waste emissions can be effectively reduced, operating costs can be reduced, and the company's market competitiveness can be enhanced.

[0036] Raw material preparation includes selecting raw materials, solvents, and bromine sources. High-purity polystyrene is selected as the base material, and the appropriate molecular weight distribution is determined based on the application requirements of the final product. An organic solvent that can dissolve polystyrene and is harmless to subsequent reactions is selected. Liquid bromine or the safer NBS is used. Raw material pretreatment is introduced to pretreat polystyrene, such as through surface modification or molecular weight adjustment, to enhance its reactivity with the bromine source and improve bromination efficiency. An intelligent warehousing system is established, and equipment such as automatic guided vehicles or conveyor belts are used to ensure that raw materials such as polystyrene particles, solvents, and bromine sources can be accurately delivered to each processing point as needed. Material batches are tracked through barcodes or RFID tags to ensure traceability.

[0037] Through the above technical solution, high-quality starting materials directly determine the quality of the finished product, reducing the generation of by-products caused by impurities. Polystyrene with a specific molecular weight distribution helps determine the optimal reaction conditions, improves yield and reduces unnecessary energy consumption. A complete batch management system enhances production transparency and traceability, facilitating problem tracking and responsibility definition. Suitable solvents can accelerate the dissolution of polystyrene, making the material easier to disperse evenly, thereby improving the rate and efficiency of the bromination reaction. The use of more environmentally friendly solvents not only reduces VOC emissions but also helps establish a sustainable production process. The use of relatively safe bromine sources reduces hazards to human health and equipment and improves safety at the production site. By strictly controlling the concentration and dosage of the bromine source, the degree of bromination reaction can be accurately adjusted to ensure product consistency and stability. The selection of a bromine source that is easy to remove or recycle can make the separation and purification process simpler and more efficient, reducing resource waste.

[0038] Premixing and heating include premixing and heating, mixing polystyrene with the selected solvent to form a uniformly dispersed solution, and sending the mixed solution into the preheating zone. At this stage, the material temperature is gradually raised to the appropriate reaction temperature by indirect heating, using ultrasonic mixing and electromagnetic induction heating.

[0039] Through the above technical solution, ultrasonic mixing uses the mechanical vibrations generated by high-frequency sound waves to form tiny bubbles in the liquid and quickly burst them (cavitation effect), creating a local high temperature and high pressure environment. This effect can destroy the intermolecular forces in the liquid and make the material more evenly dispersed. Compared with traditional mechanical stirring methods, ultrasonic mixing usually does not cause a sharp temperature rise, avoiding material denaturation or degradation that may be caused by overheating, and improving the overall efficiency of the production line. The use of electromagnetic induction heating devices instead of traditional resistance heating or steam jacket heating systems to directly heat the mixture containing polystyrene and solvent can achieve a very fast heating rate.

[0040] The bromination reaction uses a specially designed continuous flow reactor system, which contains static mixing elements to ensure that the materials are fully contacted and quickly reach a uniform dispersion state. The temperature is maintained in the appropriate range of 80°C-150°C to promote the bromination reaction without destroying the polystyrene structure. A suitable pressure level is maintained to prevent the escape of volatile components while ensuring the safe progress of the reaction. The residence time of the materials in the reactor is precisely controlled to ensure sufficient reaction degree but not excessive reaction that will increase by-products. Small amounts of catalysts or additives are added as needed to accelerate the bromination process or improve product performance. The use of microchannel reactors can significantly improve mass transfer and heat transfer efficiency.

[0041] Through the above technical solution, for certain specific steps, such as hydrodebromination reaction, a fixed bed reactor equipped with a CuNi bimetallic catalyst can be used. The design of the microchannel reactor and the fixed bed reactor significantly improves the reaction rate and efficiency, shortens the production cycle, and through the online monitoring system, the reaction conditions can be adjusted in real time to ensure the consistency and stability of product quality, help reduce the generation of unnecessary by-products, and improve the selectivity of the target product.

[0042] Separation and purification include solid-liquid separation, washing and drying. The crude product solution generated by the bromination reaction then enters the solid-liquid separation unit, and a centrifuge or filter device is used to remove unreacted raw materials and other impurities. The impurities remaining on the surface of the product are cleaned with an appropriate solvent to ensure its purity. Vacuum drying or other effective methods are used to remove moisture and solvents to obtain a dry product. A selective permeable membrane is introduced, and green solvents such as supercritical carbon dioxide are used instead of traditional organic solvents for extraction.

[0043] Through the above technical solutions, continuous centrifugal separators and membrane separation technologies can efficiently complete this task, reduce resource waste and improve production efficiency, reduce the generation of wastewater and exhaust gas, and reduce the impact on the environment. The multi-stage washing system can significantly improve the purity of the product, ensuring that it meets strict quality standards. Through precise temperature and humidity control, it ensures that the product will not be damaged during the drying process and maintains its original performance and characteristics. Carbon dioxide is a naturally occurring gas that will not damage the ozone layer and does not have the risk of volatile organic compound emissions like some organic solvents.

[0044] Finished product testing involves a comprehensive quality inspection of the final product, including physical and chemical property testing, flame retardant effect evaluation, and safety inspection, to ensure that all indicators meet the relevant standards.

[0045] Through the above technical solutions and strict finished product testing, even in the face of factors such as raw material fluctuations or equipment aging, a high level of product quality can be maintained, potential problems can be discovered and resolved in a timely manner, and unqualified products can be prevented from flowing into the next process or market, thus saving costs.

[0046] Environmental protection measures include waste gas treatment, wastewater treatment and solid waste disposal, installation of effective tail gas purification equipment, treatment of gases generated during the process, establishment of a comprehensive sewage treatment system, and ensuring that emissions comply with environmental protection regulations.

[0047] Through the above technical solutions, high-efficiency gas collection hoods or closed reactors are installed to ensure that all places where harmful gases may be generated are effectively covered, and large particles and high-boiling point organic compounds in the exhaust gas are preliminarily removed through physical methods such as condensation and adsorption. Alkaline washing towers, acid washing towers and other devices are used to neutralize acidic or alkaline gases, and activated carbon adsorption or catalytic oxidation technology is used to degrade volatile organic compounds. Low-temperature plasma technology is used to decompose difficult-to-treat organic pollutants, such as bromine-containing exhaust gas, to efficiently remove harmful components. Different collection pipes are set according to the different properties of the wastewater (such as oily wastewater, acid-base wastewater, heavy metal-containing wastewater, etc.) to avoid cross-contamination caused by mixing, and large suspended solids are removed through facilities such as screens and grit chambers; pH is used. Regulators adjust the pH value of wastewater to create conditions for subsequent treatment. Activated sludge method, biofilm method and other microbial degradation technologies are used to treat organic wastewater, reduce chemical oxygen demand and biochemical oxygen demand, and ozone oxidation, photocatalytic oxidation and other advanced oxidation technologies are used to further degrade difficult-to-degrade organic matter, improve the biodegradability of wastewater, and achieve effective separation of water and pollutants through membrane separation technologies such as ultrafiltration, nanofiltration or reverse osmosis. Some water resources are recovered and classified according to the nature of the waste (such as hazardous waste, general industrial waste, domestic garbage, etc.), and clearly labeled for subsequent treatment. For recyclable solid waste, such as metal chips, plastic scraps, etc., special recycling channels are established to put them back into production or sell them to professional recycling companies.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for continuously producing brominated polystyrene, characterized in that: The following steps are involved: Step I: Raw material preparation. High-quality raw materials ensure the basic quality of the product, and correct selection can optimize reaction conditions, increase yield and reduce unnecessary by-products. Step II: Premixing and heating. Sufficient premixing ensures the consistency of the materials and helps achieve a more uniform reaction. Appropriate heating speeds up the dissolution rate and creates good conditions for the subsequent chemical reaction. ① Ultrasonic activation: An ultrasonic activation step is introduced to treat the preheated material before it enters the bromination reactor to promote the activation of the molecular chain and improve the bromination efficiency; Step III: Bromination reaction: Precise control of reaction conditions can maximize conversion while maintaining stable product quality and reducing impurity formation; ②Online monitoring and feedback control: Install online analytical instruments to monitor the bromination reaction process in real time and feed the data back to the control system to automatically adjust the reaction conditions to ensure the consistency of product quality; Step IV: Separation and purification. An effective separation and purification process not only improves the purity of the product, but also reduces potential risks in subsequent applications, ensuring that the final product meets strict quality standards. ③ Rapid quality screening: Using non-destructive rapid detection technology, the sample is immediately screened for preliminary quality after separation and purification, to identify problems in advance and adjust process parameters in a timely manner; Step V: Finished product testing ensures consistent and reliable quality for each batch of products, enhances customer trust, and provides data support for continuous improvement of production processes; Step VI: Environmental protection measures help protect the natural environment, comply with regulatory requirements, maintain corporate image and social responsibility, and may also bring opportunities for cost savings and resource recovery.

2. The method for continuously producing brominated polystyrene according to claim 1, wherein: The raw material preparation includes selecting raw materials, solvents and bromine sources, selecting high-purity polystyrene as a base material, determining a suitable molecular weight distribution based on the application requirements of the final product, selecting an organic solvent that can dissolve polystyrene and is harmless to subsequent reactions, using liquid bromine or the safer NBS, introducing raw material pretreatment, pre-treating polystyrene, such as through surface modification or molecular weight adjustment, to enhance its reactivity with the bromine source and improve bromination efficiency, establishing an intelligent warehousing system, and using equipment such as automatic guided vehicles or conveyor belts to ensure that raw materials such as polystyrene particles, solvents and bromine sources can be accurately delivered to various processing points as needed, and tracking material batches through barcodes or RFID tags to ensure traceability.

3. The method for continuously producing brominated polystyrene according to claim 1, wherein: The premixing and heating includes premixing and heating, mixing polystyrene with a selected solvent to form a uniformly dispersed solution, and sending the mixed solution into a preheating zone. At this stage, the material temperature is gradually raised to a suitable reaction temperature by indirect heating, using ultrasonic mixing and electromagnetic induction heating.

4. The method for continuously producing brominated polystyrene according to claim 1, wherein: The bromination reaction utilizes a specially designed continuous flow reactor system containing static mixing elements to ensure full contact of the materials and rapid uniform dispersion. The temperature is maintained within an appropriate range of 80°C to 150°C to promote the bromination reaction without destroying the polystyrene structure. A suitable pressure level is maintained to prevent the escape of volatile components while ensuring the safe conduct of the reaction. The residence time of the materials in the reactor is precisely controlled to ensure a sufficient degree of reaction without excessive reaction leading to an increase in by-products. A small amount of catalyst or additive is added as needed to accelerate the bromination process or improve product performance. The use of a microchannel reactor can significantly improve mass and heat transfer efficiency.

5. The method for continuously producing brominated polystyrene according to claim 1, wherein: The separation and purification includes solid-liquid separation, washing and drying. The crude product solution generated by the bromination reaction then enters the solid-liquid separation unit, and a centrifuge or a filter device is used to remove unreacted raw materials and other impurities. The impurities remaining on the surface of the product are cleaned with an appropriate solvent to ensure its purity. Vacuum drying or other effective methods are used to remove moisture and solvent to obtain a dry product. A selective permeable membrane is introduced, and green solvents such as supercritical carbon dioxide are used instead of traditional organic solvents for extraction.

6. The method for continuously producing brominated polystyrene according to claim 1, wherein: The finished product inspection finally conducts a comprehensive quality inspection on the obtained products, including physical and chemical property testing, flame retardant effect evaluation and safety inspection to ensure that all indicators meet the relevant standards.

7. The method for continuously producing brominated polystyrene according to claim 1, wherein: The environmental protection measures include waste gas treatment, wastewater treatment and solid waste disposal, installation of effective tail gas purification equipment, gas generated during the treatment process, establishment of a complete sewage treatment system, and ensuring that emissions comply with environmental protection regulations.