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According to the news released on the official website of Wuhai Municipal Development and Reform Commission on December 8,2023, the energy consumption index of BDO and degradable Materials Co., Ltd., a subsidiary of Sanwei Holding Group, was recently approved by the Autonomous Region Development and Reform Commission and approved to start construction. The designed energy consumption equivalent value of the second phase of the project is 1,035,500 tons of standard coal, and the equivalent value is 1,368,400 tons of standard coal.

Among the many uses of polyester PET (polyethylene terephthalate), polyester industrial silk belongs to the variety with high technical threshold. Polyester industrial silk has high strength, fatigue resistance and aging resistance, used in geotechnical materials, tire cord, automotive safety belt and other fields. The higher the mechanical properties of polyester PET products are, the greater the relative molecular mass is required, and the higher the corresponding melt dynamic viscosity is. Conventional melting and polycondensation can only improve the PET characteristic viscosity to about 0.65 dl / g, which can only be used for spinning civil polyester fiber, while the polyester raw materials required for the production of polyester industrial silk must pass the "post-reinforcement phase condensation" process to meet the viscosity requirements. In recent decades, the global polyester industrial silk production has adopted the high energy consumption "three-section method" production process (slice spinning process), which first uses fusion, then solid phase cohesion, and then screw melt extrusion spinning. The whole process has long time, complicated process, low efficiency and non-continuous process. Well-known foreign companies such as DuPont of the United States and Hitachi of Japan have been committed to the research of melt direct spinning polyester industrial silk technology, but they have not achieved large-scale industrialization.

Inner Mongolia Sanwei New Material Co., Ltd. plans to build the BDO integration project of Inner Mongolia Sanwei New Material Co., Ltd. in the Low-carbon Industrial Park of Wuhai Economic and Technological Development Zone, Inner Mongolia Autonomous Region. According to the requirements of the Interim Measures for Public Participation in Environmental Impact Assessment (Order No.4 of the Ministry of Ecology and Environment), the following contents are hereby announced to the public.

1. Brief description of the construction projects

Project name: BDO integration project of Inner Mongolia Sanwei New Material Co., LTD

Construction site: Low-carbon Industrial Park, Wuhai Economic and Technological Development Zone, Inner Mongolia Autonomous Region

Construction nature: new construction

Construction content and scale: The project is divided into two phases, and this evaluation is only evaluated for the first phase of the project. Acetylene raw material unit 360000 t / a; acetylene unit 100000 t / a; formaldehyde unit 720000 t / a; 1,4-butanediol unit 300000 t / a; methanol hydrogen production unit 24000 N m3/h; PBAT unit 100000 t / a; PTMEG unit 30000 t / a (two phases, one and two); annual operating time of each unit 8000 hours, namely 333 days. Supporting raw material workshop, power workshop, public works and auxiliary facilities.

Total investment: The total investment of this project is RMB 4366108200.

2. Name and contact information of the construction unit

Construction unit: Inner Mongolia Sanwei New Material Co., LTD

Contact person: Mr.Chen

Contact number: 15268860396

3. Name and contact information of the eia agency undertaking the evaluation work

Evaluation unit: Inner Mongolia Xinzhong Ecological Environment Technology Co., LTD

4. Network link to the public opinion form:

Network link of the public opinion form: https://pan.baidu.com/s/1vi1TvWTF_DIDtDzDjAwOdA;

5. Ways and ways to submit the public opinion form:

From the date of the announcement, the public may submit the public opinion form to the construction unit within the prescribed time by telephone or other means provided by the construction unit, to reflect the opinions and suggestions related to the environmental impact of the construction project.