Home
Search History
Clear History
{{item.search_key}}
Hot Searches
Change
{{item.name}}
{{item.english_name}}
Subscribe eNews
Once A Week Once Every Two Weeks
{{sum}}
{{sum}}
Log in

Please Login

Subscribe To Tags, See What You Want To See

Sign Up For Events, Expand your network

Unlock Private Messages, Participate In Interactions

 Register

Hi.{{userInfo.company_name_english||userInfo.truename_english}} Hi.{{userInfo.truename||userInfo.phone||userInfo.email}}

Applications

CHINAPLAS 2026: Government blueprint for emerging industries driving new plastics innovation

EREMA and Lindner Washtech establish subsidiary in India

Lubrizol launches Tolerathane TPU for implantable medical devices

Products

Brüggemann introduces new additive CompoBack for cross-linked polyolefins

Asahi Kasei develops PFAS-free PA66 for demanding low-friction applications

Oil-free compressors for PET blowing, clean, efficient and worry-free

Activities

  • Fakuma to celebrate 30th anniversary edition in October 2026

  • Italy pavilion at Plast Eurasia proves its rising presence in Turkish market

  • CHINAPLAS 2026: Grand stage for new material, smart manufacturing and green solutions

Pictorial

Industry Topic

Injection Molding: What's Next?

Green Plastics: News & Insights

ASEAN: The Next Manufacturing Hub

CHINAPLAS

CHINAPLAS 2025 Focus

CHINAPLAS 2023 Focus

CHINAPLAS 2024 Focus

Exhibition Topic

CHINA INSIGHT

K 2025 FOCUS

Fakuma 2024 Highlights

News Videos

Haitian South China Headquarters opening

BEILIJIA Double Walled Corrugated Pipe Plant

Magnetic mold changing system developed in-house by Shanghai Qiaotian

Conference Videos

【Mandarin session: Webinar playback】SACMI: Your Digitalized Manufacturing, Your Future Today

[Live Replay] LK Group: Smart Manufacturing, New Chapters in Southeast Asia: High-Efficiency Solutions in PET Preform & Thin-Wall Packaging

[Live Replay] Fu Chun Shin (FCS): Data-Driven Digital Rebirth and Intelligent Future of Injection Molding

Corporate/Product Videos

Bag-making machine waste collection machine

FCS Group | Outward Toggle Injection Molding Machine

Discover Weihai Lianqiao New Materials — Innovating for a Sustainable Future

Exhibition

Playback TECHHUB 2025@CPRJ Live Streaming for CHINAPLAS

Playback TECHHUB@CPRJ Live Streaming for CHINAPLAS

Events

Playback On April 14, the "6th Edition CHINAPLAS x CPRJ Plastics Recycling and Circular Economy Conference and Showcase" at the Crowne Plaza Shenzhen Nanshan is currently being livestreamed!

Playback 5th Edition CHINAPLAS x CPRJ Plastics Recycling and Circular Economy Conference and Showcase

News
NEW
HOT
 Events
NEW
HOT
 SPE Asia
NEW
HOT
 Special
NEW
HOT
 Live
NEW
HOT
 eNews
NEW
HOT
 Essential Guide
NEW
HOT
 Event Calendar
NEW
HOT
 Survey
NEW
HOT
 CHINA INSIGHT
NEW
HOT

Home > News > Market News

Chemical Recycling of PET: High-Boiling Monomer Purification Using Melt Crystallizers

Shanghai DODGEN Chemical Technology Co., Ltd.
Source：https://www.dgchemtech.com/che Date ：2025-02-26 Editor ：DODGEN
Copyright： The content was uploaded and published by members of Adsale Plastics Network (AdsaleCPRJ.com). It represents the opinion of the author or the organization; Adsale Plastics Network provides the platform for information release only. For membership registration, please log in on a desktop computer:adsalecprj.com/shor/dMpPW0

The recycling rate of PET waste plastics in China remains below 10% annually. The predominant recycling method is physical recycling, which, however, degrades the mechanical properties of PET, limiting the application scope of recycled PET products.

While physical recycling of PET is well-established, and the bottle-to-fiber recycling market is mature, bottle-to-bottle recycling must meet the stringent requirements of bottle manufacturing and food packaging. This has driven the development of chemical recycling technologies involving chain degradation and repolymerization. Chemical recycling involves converting PET molecular chains, where the polymer undergoes depolymerization into oligomers or monomers, followed by separation, purification, and other processes to serve as raw materials for producing chemical products. Significant advancements have been made in research and development of PET chemical recycling, including alcoholysis, enzymatic hydrolysis, and advanced recycling, some of which have achieved successful commercialization.

Chemical recycling can be carried out through hydrolysis, glycolysis, methanolysis, or saponification, resulting in various degradation products. This article focuses on the development and commercialization pathways of PET glycolysis.

Chemical Recycling of PET: High-Boiling Monomer Purification Using Melt Crystallizers

1. Commercialization Pathway for PET Glycolysis Recycling

DuPont has implemented methanolysis using Lewis acid as a catalyst. This process is suitable for recycling PET containing dyes, coatings, and other polymers. It is reported to have achieved a production capacity of 50,000 to 80,000 tons per year.

Chemical Recycling of PET: High-Boiling Monomer Purification Using Melt Crystallizers


Goodyear (USA), DuPont (USA), and Hoechst (Germany) have successfully industrialized the EG glycolysis method. Fujita has also disclosed related technologies, proposing that shredded fabric should be pre-wetted with EG before entering the glycolysis system to facilitate and accelerate the glycolysis reaction.

Chemical Recycling of PET: High-Boiling Monomer Purification Using Melt Crystallizers

China's Zhejiang Jiaren Company, in collaboration with Japan's Teijin Corporation, has developed the ECO CIRCLE® technology. This technology can produce fine-denier fibers of the same quality as virgin PET and is suitable for recycling waste polyester garments containing dyes and pigments.

Saudi Arabia's SABIC is the industry's first supplier to use chemical upcycling methods to produce renewable PBT polyester, turning plastic waste into valuable resources.

Eastman’s polyester renewal technology employs glycolysis or methanolysis to depolymerize waste into basic monomers, enabling the creation of new materials.

Guangdong Suiye Environmental Protection uses the ethylene glycol glycolysis method, employing ethylene glycol as a depolymerizing agent under high temperature and pressure to convert PET into BHET. BHET is then repolymerized into r-PET, r-PETG, pellets, and films.

2. Main Issues with Glycolysis Method


The current PET glycolysis process is relatively complex. Whether using methanolysis or glycolysis, the crude products must undergo refining, filtration, and cleaning before being reused to produce recycled PET or other products. Since the primary depolymerization target products are BHET or DMT, the process involves deep depolymerization with long reaction times; high monomer purity requirements make separation and purification challenging; and the process is lengthy with high energy consumption. The following describes Eastman’s methanolysis process as an example:


This process involves degrading PET in methanol (MeOH) at a temperature of 180–280°C and a pressure of 2–4 MPa. The two main reaction products are DMT and EG, which are raw materials for synthesizing the original polymer. Methanolysis can proceed either through glycolysis followed by methanol transesterification or by directly placing PET in methanol. Early methods focused on liquid-phase methanolysis, whereas newer methods use methanol vapor by removing reaction products along with the solvent as vapor. In this approach, superheated methanol vapor passes through the reaction mixture, forming a melt containing low-molecular-weight polyesters, monomers, oligomers, glycols, and DMT.


The primary advantage of vapor-phase methanolysis is that methanol serves not only as a depolymerizing agent but also as a carrier gas, separating the monomer components in the vapor phase from the oligomers in the liquid phase. Additionally, the reaction equilibrium shifts toward vapor-phase products, leading to a high DMT conversion rate of up to 90%. Furthermore, DMT, EG, and MeOH can be easily recovered and purified through distillation. However, pre-distilled DMT requires further purification via crystallization to remove critical impurities that negatively impact its repolymerization behavior. These impurities include water, diols, alcohols, catalysts, and closely related vapor-phase components, such as phthalate derivatives (e.g., dimethyl isophthalate, DMI).


3. Purification of DMT, EG, and Methanol

As noted above, methanolysis degrades low-quality feedstock into DMT and EG. However, the commercial potential of recycled PET is constrained by quality standards for reuse in food packaging. Therefore, the purity of raw materials is crucial. Methanol can be purified by boiling it off from the reactants EG and DMT, followed by distillation. However, due to the DMT-EG azeotrope, separating EG and other diols from DMT through distillation is more challenging and requires extensive theoretical studies.


MeOH, EG, and DMT Separation Column

MeOH, EG, and DMT Separation Column

Separation reaction PRO/II simulation results for products

Separation reaction PRO/II simulation results for products


Table 1 presents the PRO/II design and simulation results for separating reaction products via distillation. The data indicate that vacuum distillation can achieve high-purity methanol and ethylene glycol. However, pre-distilled DMT has a purity of 97.3 wt% and requires further processing to meet the quality standards for bottle-grade PET. This can be achieved through recrystallization in a methanol solution or solvent-free melt crystallization.The traditional recrystallization process involves the use of DMT crystallizers, DMT centrifuges, DMT melters, and filters, along with a significant amount of methanol as a solvent. The associated crystallization equipment and solvent recovery units typically account for 45% of the total investment cost. In contrast, solvent-free melt crystallizer improves operational flexibility and reduces the potential investment and operational costs of commercial facilities.


Many organic materials are purified through crystallization, where the feed mixture generally has a high concentration of crystalline components. Crystallization in such mixtures differs from conventional solution crystallization and is thus referred to as melt crystallization. Here, the melt is defined as a liquid that solidifies upon cooling within a relatively narrow temperature range, close to the melting point of the primary crystalline component. The primary purpose of this process is purification rather than particle formation.


A pilot-scale falling-film crystallizer, equipped with an 18-meter-long vertical tube, was used for melt crystallization of synthetic DMT mixtures containing multiple impurities. This system is eutectic, with a eutectic temperature of 55°C for a mixture containing 9 wt% DMT. Therefore, on the DMT side of the phase diagram, the total impurities can be treated as a single impurity. Upon cooling, DMT crystals grow from the falling film of the melt inside the cooling tube. Impurities such as water, diols, alcohols, catalysts, and non-PET components from copolymers (e.g., DMI, bisphenol A, and caprolactam) are excluded from the crystals and concentrated in the mother liquor. Further cooling results in layered growth, followed by the discharge of impure melt.

The crystallized layer is further purified through partial melting (a process known as sweating), which is similar to the washing step in solution crystallization. The purified crystalline layer is then melted (at a melting point of 142°C) to recover a pure liquid product.



Separation stages for high-purity DMT production

Separation stages for high-purity DMT production


Layer crystallization purification is carried out through repeated temperature cycles and mass balance adjustments during specific separation stages. The cyclic nature of the process allows multiple separation stages to be performed in a single crystallizer. This enables achieving the desired product purity of over 99.9 wt% DMT without compromising recovery rates. Similarly, by adding stripping stages, the DMT content can be increased to over 95%, thereby minimizing product losses. It should be noted that higher initial crystal purity results in better separation efficiency, which decreases as impurity levels rise.

Falling-film crystallization is typically used for relatively pure feedstock and high-capacity operations. As a result, crystallization times are shorter, with 40 to 60 minutes required to crystallize approximately 80% of the initial mass. The final thickness of the cylindrical crystal layer ranges from 8 to 12 mm. Sweating times are even shorter, typically between 15 and 20 minutes, with the final crystal mass retaining 50% to 95% of the initial mass, depending on the initial purity.

One of the main advantages of layered crystallization is that no mechanical devices are required to transport liquid fractions. The only moving components in the process are standard pumps and valves. However, recovering a pure liquid product requires the material to remain relatively stable at its melting point. DMT readily meets this requirement. Donggong’s ongoing research into melt crystallization purification has achieved exceptionally high product purity, significantly enhancing the sustainability of PET chemical recycling.


DODGEN Marketing Department Contact Information 18016058776 (same WeChat account)

CHINAPLAS 2025

From April 15th, 2025 to April 18th, 2025

Booth K01 in Hall 16


 Like 丨  {{details_info.likes_count}}
Resource recycling
Research institute Recycling
Recycled plastics
Recycling
plastic
 SACMI (SHANGHAI) MACHINERY EQUIPMENT CO., LTD.      
 DONGGUAN DEHUA PRECISION MOLD CO., LTD      
 HENAN TENGYUE MACHINERY TECHNOLOGY CO.,LTD.      
 ZHONGSHAN SAMPROMOLD MAKING CO.,LTD      
 JUHESHUN ADVANCED MATERIALS CO., LTD.      
 JIANGSU SHENLONG ZINC INDUSTRY CO., LTD.      
 GREENWICH (CHINA) TECHNOLOGY DEVELOPMENT LIMITED      
 NINGBO YUFINE PRECISION INDUSTRY CO., LTD.      
 LINKER NEW MATERIALS CO., LTD      
 SHANGHAI HAWKWAY PROCESS SOLUTIONS CO., LTD      
 WENZHOU CHAOXU MACHINERY CO.，LTD.      
 GUANGXI HENGYI NEW MATERIALS CO., LTD.      
 ZHEJIANG HFLON NEW MATERIAL CO.,LTD      
 GUANGXI WUZHOU GUOLONG RECYCLABE RESOURCES DEVELOPMENT CO., LTD.      
 YUYAO KAWAGUCHI Manufacturing Co., Ltd.      
 XIAMEN XINWANCAI POLYMER TECHNOLOGY CO.,LTD      
 ANHUI ZHONGXIN HONGWEI TECHNOLOGY CO.,LTD      
 FUJIAN NAN'AN STAR RUBBER&PLASTIC MACHINERY CO., LTD.      
 SHANXI YONGDONG CHEMICAL INDUSTRY CO.,LTD      
 ZHANGJIAGANG GREENLANDPLAST MACHINERY CO.,LTD      
 Wudi Haoye Plastic Co. , Ltd.      
 WENZHOU DETAI PLASTICS CO., LTD      

The content you're trying to view is for members only. If you are currently a member, Please login to access this content.   Log in

Shanghai DODGEN Chemical Technology Co., Ltd.
Source：https://www.dgchemtech.com/che Date ：2025-02-26 Editor ：DODGEN
Copyright： The content was uploaded and published by members of Adsale Plastics Network (AdsaleCPRJ.com). It represents the opinion of the author or the organization; Adsale Plastics Network provides the platform for information release only. For membership registration, please log in on a desktop computer:adsalecprj.com/shor/dMpPW0

The recycling rate of PET waste plastics in China remains below 10% annually. The predominant recycling method is physical recycling, which, however, degrades the mechanical properties of PET, limiting the application scope of recycled PET products.

While physical recycling of PET is well-established, and the bottle-to-fiber recycling market is mature, bottle-to-bottle recycling must meet the stringent requirements of bottle manufacturing and food packaging. This has driven the development of chemical recycling technologies involving chain degradation and repolymerization. Chemical recycling involves converting PET molecular chains, where the polymer undergoes depolymerization into oligomers or monomers, followed by separation, purification, and other processes to serve as raw materials for producing chemical products. Significant advancements have been made in research and development of PET chemical recycling, including alcoholysis, enzymatic hydrolysis, and advanced recycling, some of which have achieved successful commercialization.

Chemical recycling can be carried out through hydrolysis, glycolysis, methanolysis, or saponification, resulting in various degradation products. This article focuses on the development and commercialization pathways of PET glycolysis.

Chemical Recycling of PET: High-Boiling Monomer Purification Using Melt Crystallizers

1. Commercialization Pathway for PET Glycolysis Recycling

DuPont has implemented methanolysis using Lewis acid as a catalyst. This process is suitable for recycling PET containing dyes, coatings, and other polymers. It is reported to have achieved a production capacity of 50,000 to 80,000 tons per year.

Chemical Recycling of PET: High-Boiling Monomer Purification Using Melt Crystallizers


Goodyear (USA), DuPont (USA), and Hoechst (Germany) have successfully industrialized the EG glycolysis method. Fujita has also disclosed related technologies, proposing that shredded fabric should be pre-wetted with EG before entering the glycolysis system to facilitate and accelerate the glycolysis reaction.

Chemical Recycling of PET: High-Boiling Monomer Purification Using Melt Crystallizers

China's Zhejiang Jiaren Company, in collaboration with Japan's Teijin Corporation, has developed the ECO CIRCLE® technology. This technology can produce fine-denier fibers of the same quality as virgin PET and is suitable for recycling waste polyester garments containing dyes and pigments.

Saudi Arabia's SABIC is the industry's first supplier to use chemical upcycling methods to produce renewable PBT polyester, turning plastic waste into valuable resources.

Eastman’s polyester renewal technology employs glycolysis or methanolysis to depolymerize waste into basic monomers, enabling the creation of new materials.

Guangdong Suiye Environmental Protection uses the ethylene glycol glycolysis method, employing ethylene glycol as a depolymerizing agent under high temperature and pressure to convert PET into BHET. BHET is then repolymerized into r-PET, r-PETG, pellets, and films.

2. Main Issues with Glycolysis Method


The current PET glycolysis process is relatively complex. Whether using methanolysis or glycolysis, the crude products must undergo refining, filtration, and cleaning before being reused to produce recycled PET or other products. Since the primary depolymerization target products are BHET or DMT, the process involves deep depolymerization with long reaction times; high monomer purity requirements make separation and purification challenging; and the process is lengthy with high energy consumption. The following describes Eastman’s methanolysis process as an example:


This process involves degrading PET in methanol (MeOH) at a temperature of 180–280°C and a pressure of 2–4 MPa. The two main reaction products are DMT and EG, which are raw materials for synthesizing the original polymer. Methanolysis can proceed either through glycolysis followed by methanol transesterification or by directly placing PET in methanol. Early methods focused on liquid-phase methanolysis, whereas newer methods use methanol vapor by removing reaction products along with the solvent as vapor. In this approach, superheated methanol vapor passes through the reaction mixture, forming a melt containing low-molecular-weight polyesters, monomers, oligomers, glycols, and DMT.


The primary advantage of vapor-phase methanolysis is that methanol serves not only as a depolymerizing agent but also as a carrier gas, separating the monomer components in the vapor phase from the oligomers in the liquid phase. Additionally, the reaction equilibrium shifts toward vapor-phase products, leading to a high DMT conversion rate of up to 90%. Furthermore, DMT, EG, and MeOH can be easily recovered and purified through distillation. However, pre-distilled DMT requires further purification via crystallization to remove critical impurities that negatively impact its repolymerization behavior. These impurities include water, diols, alcohols, catalysts, and closely related vapor-phase components, such as phthalate derivatives (e.g., dimethyl isophthalate, DMI).


3. Purification of DMT, EG, and Methanol

As noted above, methanolysis degrades low-quality feedstock into DMT and EG. However, the commercial potential of recycled PET is constrained by quality standards for reuse in food packaging. Therefore, the purity of raw materials is crucial. Methanol can be purified by boiling it off from the reactants EG and DMT, followed by distillation. However, due to the DMT-EG azeotrope, separating EG and other diols from DMT through distillation is more challenging and requires extensive theoretical studies.


MeOH, EG, and DMT Separation Column

MeOH, EG, and DMT Separation Column

Separation reaction PRO/II simulation results for products

Separation reaction PRO/II simulation results for products


Table 1 presents the PRO/II design and simulation results for separating reaction products via distillation. The data indicate that vacuum distillation can achieve high-purity methanol and ethylene glycol. However, pre-distilled DMT has a purity of 97.3 wt% and requires further processing to meet the quality standards for bottle-grade PET. This can be achieved through recrystallization in a methanol solution or solvent-free melt crystallization.The traditional recrystallization process involves the use of DMT crystallizers, DMT centrifuges, DMT melters, and filters, along with a significant amount of methanol as a solvent. The associated crystallization equipment and solvent recovery units typically account for 45% of the total investment cost. In contrast, solvent-free melt crystallizer improves operational flexibility and reduces the potential investment and operational costs of commercial facilities.


Many organic materials are purified through crystallization, where the feed mixture generally has a high concentration of crystalline components. Crystallization in such mixtures differs from conventional solution crystallization and is thus referred to as melt crystallization. Here, the melt is defined as a liquid that solidifies upon cooling within a relatively narrow temperature range, close to the melting point of the primary crystalline component. The primary purpose of this process is purification rather than particle formation.


A pilot-scale falling-film crystallizer, equipped with an 18-meter-long vertical tube, was used for melt crystallization of synthetic DMT mixtures containing multiple impurities. This system is eutectic, with a eutectic temperature of 55°C for a mixture containing 9 wt% DMT. Therefore, on the DMT side of the phase diagram, the total impurities can be treated as a single impurity. Upon cooling, DMT crystals grow from the falling film of the melt inside the cooling tube. Impurities such as water, diols, alcohols, catalysts, and non-PET components from copolymers (e.g., DMI, bisphenol A, and caprolactam) are excluded from the crystals and concentrated in the mother liquor. Further cooling results in layered growth, followed by the discharge of impure melt.

The crystallized layer is further purified through partial melting (a process known as sweating), which is similar to the washing step in solution crystallization. The purified crystalline layer is then melted (at a melting point of 142°C) to recover a pure liquid product.



Separation stages for high-purity DMT production

Separation stages for high-purity DMT production


Layer crystallization purification is carried out through repeated temperature cycles and mass balance adjustments during specific separation stages. The cyclic nature of the process allows multiple separation stages to be performed in a single crystallizer. This enables achieving the desired product purity of over 99.9 wt% DMT without compromising recovery rates. Similarly, by adding stripping stages, the DMT content can be increased to over 95%, thereby minimizing product losses. It should be noted that higher initial crystal purity results in better separation efficiency, which decreases as impurity levels rise.

Falling-film crystallization is typically used for relatively pure feedstock and high-capacity operations. As a result, crystallization times are shorter, with 40 to 60 minutes required to crystallize approximately 80% of the initial mass. The final thickness of the cylindrical crystal layer ranges from 8 to 12 mm. Sweating times are even shorter, typically between 15 and 20 minutes, with the final crystal mass retaining 50% to 95% of the initial mass, depending on the initial purity.

One of the main advantages of layered crystallization is that no mechanical devices are required to transport liquid fractions. The only moving components in the process are standard pumps and valves. However, recovering a pure liquid product requires the material to remain relatively stable at its melting point. DMT readily meets this requirement. Donggong’s ongoing research into melt crystallization purification has achieved exceptionally high product purity, significantly enhancing the sustainability of PET chemical recycling.


DODGEN Marketing Department Contact Information 18016058776 (same WeChat account)

CHINAPLAS 2025

From April 15th, 2025 to April 18th, 2025

Booth K01 in Hall 16


全文内容需要订阅后才能阅读哦~
立即订阅
ANHUI ZHONGXIN HONGWEI TECHNOLOGY CO.,LTD KOKSAN CHINA POLYESTER CHIPS
JIANGYIN SHIXUAN MACHINERY CO., LTD Hefei Leaf Biotech Co.,Ltd. Manufactured by Gao Qin Excellent Packaging Machine

Recommended Articles

Market News
Liuliu Plastics Machinery Showcased at Turkey Exhibition in December – Booth 909F Stand
 2026-02-09
  Chengdu Liuliu Plastic Machinery Technology Co., Ltd. 标准会员
Machinery & Chemical
2026 model bag - making machine and garbage collector
 2026-02-05
  Shanghai Minghui Technology Development Co., Ltd. 标准会员
Corporate News
CMG Granulators expands manufacturing headquarters for logistics and technical support
 2026-02-05
Corporate News
“Transform to Outperform” operation plan for a simpler, more efficient Dow
 2026-02-05
Corporate News
Brückner Group expands technology portfolio and global innovation structures
 2026-02-03
Machinery & Chemical
Brückner Servtec to bring local and upgraded solutions at CHINAPLAS 2026
 2026-02-02
Sino-Pack 2026 home page banner 信百勒 英文横幅
BELIKE CHEMICAL CO., LTD. TALC POWDER SUPPLIER Suzhou Greefu Machinery Technology Co., LTD
  • Must See
    • News
    Images
    Watch it
1
TAIZHOU QIHONG MOULD CO.,LTD
2
Toray unveils world’s first 160°C-resistant BOPP film
3
Polyplastics develops new PPS grades with mechanically recycled content
4
Covestro's new digital configurator enables sustainable polyurethane foam design
5
Avantium receives triple ISO certifications
1
Second-hand plastic pipe extruder, 90% new, highly efficient and stable, suitable for processing various pipe specifications. Ideal choice for export.
2
Small Boss keep moving forward — see you at 2026 IPF Bangladesh exhibition! 💪✨
3
High-viscosity gear pump
4
melt pump
5
2025 Xinbaile Year-End Summary Conference‌。
  • Hot Specials

You May Be Interested In

Change
  • People
  • Company
loading... No Content
{{[item.truename,item.truename_english][lang]}} {{[item.company_name,item.company_name_english][lang]}} {{[item.job_name,item.name_english][lang]}}
{{[item.company_name,item.company_name_english][lang]}} Company Name    {{[item.display_name,item.display_name_english][lang]}}  

Polyurethane Investment Medical Carbon neutral Reduce cost and increase efficiency CHINAPLAS Financial reports rPET INEOS Styrolution Evonik Borouge Polystyrene (PS) mono-material Sustainability Circular economy BASF SABIC Multi-component injection molding machine All-electric injection molding machine Thermoforming machine

Chemical Recycling of PET: High-Boiling Monomer Purification Using Melt Crystallizers

识别右侧二维码，进入阅读全文
下载
x 关闭
订阅
亲爱的用户，请填写一下信息
I have read and agree to the 《Terms of Use》 and 《Privacy Policy》
立即订阅
Top
Feedback
Chat
News
Market News
Applications
Products
Video
In Pictures
Specials
Activities
eBook
Front Line
Plastics Applications
Chemicals and Raw Material
Processing Technologies
Products
Injection
Extrusion
Auxiliary
Blow Molding
Mold
Hot Runner
Screw
Applications
Packaging
Automotive
Medical
Recycling
E&E
LED
Construction
Others
Events
Conference
Webinar
CHINAPLAS
CPS+ eMarketplace
Official Publications
CPS eNews
Media Kit
Social Media
Facebook
Linkedin
Adsale Group ｜  About Us ｜  Terms of Use ｜  Privacy Policy ｜  Contact Us ｜  Media Kit ｜  Consent Letter for Processing Personal Data ｜