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Recently, Sanfangxiang (600370) wholly-owned subsidiary company, Jiangyin Xingjia Plastic Chemical Co.
, Ltd.
, announced the environmental impact assessment of the first phase of the 40,000-ton biodegradation project
.
1.
Basic information of the project
Basic information of the project
Project name: Project with an annual output of 40,000 tons of degradable new materials;
Construction unit: Jiangyin Xingjia Plastic Chemical Co.
, Ltd.
;
Industry category: C2922 plastic sheet, pipe, profile manufacturing;
Construction site: No.
1388 Chengyang Road, Zhouzhuang Town, Jiangyin City, Wuxi City (factory 4);
Construction content and scale: The project will construct 1 set of PBAT polymerization device, 1 degradable sheet production line and supporting public works and auxiliary facilities, purchase BDO storage, transportation and distribution system, slurry configuration system, esterification system, pre-polycondensation system, Main equipment such as final polymerization system, pelletizing system, additive system, sheet production system,
etc.
Total investment: 140 million yuan, of which environmental protection investment is about 5 million yuan, accounting for 3.
57% of the total investment;
Working hours: 333 days of work per year, 8,000 hours of work per year;
Construction period: The project construction period is 8 months
.
After completion, it will form a production scale with an annual output of 40,000 tons of degradable new materials (PBAT chips).
The production equipment and product plans are as follows:
2.
The nature of the project product
The nature of the project product
The main product of the proposed project is biodegradable PBAT chips, which is a terpolymer of 1,4-butanediol (BDO), adipic acid (AA), and terephthalic acid (PTA), and has both PBA (polyethylene glycol) The characteristics of diacid-1,4-butylene terephthalate) and PBT (polybutylene terephthalate) not only have good ductility and elongation at break, but also have good heat resistance and impact performance.
At the same time, it has excellent biodegradability, which is very active in the research of biodegradable plastics and one of the best biodegradable materials in the market
.
The biodegradable PBAT chips produced in this project meet the requirements of the National Standard of the People's Republic of China for Biodegradable Polybutylene Terephthalate-Adipate (PBAT) (GB/T32366-2015), and the biodegradation rate is greater than 60%.
, the product quality index is shown in Table 4.
1.
3-1
.
3.
Production process
Production process
The project was constructed by Pritt, and the esterification-polymerization process was used for resin production
.
The reaction principle is:
• Terephthalic acid (PTA) and adipic acid (AA) are esterified with 1,4-butanediol (BDO) through high temperature in the esterification kettle to form butane terephthalate (BHBT) , 1,4-butylene adipate (BHBA);
Terephthalic acid (PTA) and adipic acid (AA) are respectively esterified with 1,4-butanediol (BDO) through high temperature in the esterification kettle to form butylene terephthalate (BHBT), 1,4-Butanediyl adipate (BHBA);• Under the action of high temperature esterification, BHBT and BHBA are polymerized to form polybutylene terephthalate (PBT) and poly-1,4-butylene adipate (PBA), and finally polycondensation to form polybutylene terephthalate (PBT) Butylene terephthalate adipate (PBAT)
.
Under the action of high temperature esterification, BHBT and BHBA are polymerized to form polybutylene terephthalate (PBT) and poly-1,4-butylene adipate (PBA), and finally polycondensate to form polybutylene terephthalate (PBT) Butylene Adipate Phthalate (PBAT)
.
PBAT production process flow and pollution production link diagram
4.
Sanfangxiang 120,000-ton PBAT project
Sanfangxiang 120,000-ton PBAT project
In addition, for the tetrahydrofuran wastewater generated in the PBAT production process, Jiangyin Xingjia Plastics and Jiangyin Biyue Sewage Treatment Co.
, Ltd.
signed a wastewater recycling agreement with a treatment scale of 6,000 tons per day
.
In February 2021, Sanfangxiang Group (600370) announced that its subsidiary Jiangyin Xingjia Plastic Chemical Co.
, Ltd.
plans to build a PBAT project with an annual output of 120,000 tons
.
In addition to the first phase of the project with an annual output of 40,000 tons of degradable new materials, the company will also invest 220 million yuan in the second phase of an 80,000-ton/year PBAT production line and supporting sheet production lines
.
Jiangyin Xingjia Plastic Chemical Co.
, Ltd.
was established on June 21, 2002 at Sanfangxiang Village, Zhouzhuang Town, Jiangyin City.
It is mainly engaged in the research and development, production and operation of PET for bottles.
Functional new materials and high-end functional sheets
.
The existing projects are all located in Zhouzhuang Town, distributed in three factories: the 400-ton daily non-fiber polyester chip project is located in the first factory.
The project was approved by the Jiangyin Administrative Approval Bureau on July 16, 2002.
On the 9th, it passed the environmental protection acceptance of Jiangyin Environmental Protection Bureau (Zhouzhuang Branch) and is currently in normal production; the high-end functional sheet project with an annual output of 22,000 tons is located in factory area 2, and the annual output of 30,000 tons of functional new materials is located in factory area 3.
These two projects On September 7, 2020, it obtained the EIA approval from Wuxi Administrative Examination and Approval Bureau and is currently under construction
.
