Recently, Guangdong Hangxin Technology Co., Ltd. (Hangxin Technology) won the bid for the "Waste Acid Treatment Engineering and Technical Service Project" as part of the collaborative annual production initiative for 300 tons of graphene membrane materials and 100,000 square meters of graphene thermal dissipation films, a joint venture between Zhongke Yueda (Shanghai) Materials Technology Co., Ltd. and Shandong Zhonghong Nanomaterials Co., Ltd.
Leveraging its exceptional comprehensive strength, robust technical capabilities, and strong corporate reputation, Hangxin Technology distinguished itself through a rigorous multi-stage screening process and successfully secured the project with a winning bid of CNY 20.78 million.
This successful bid win not only demonstrates Hangxin Technology's comprehensive strength but also represents a significant achievement in the company's deep commitment to green circular technology for graphene oxide.
As a key raw material in the graphene industry, graphene oxide is primarily produced via processes that generate approximately 80-100 tons of waste acid liquor per ton of product. Traditional disposal methods are costly and prone to causing secondary pollution, posing a major bottleneck to the industry's green and large-scale development.
As the first company in China to achieve a complete transformation from patented technology to large-scale engineering application in graphene oxide waste acid treatment, Guangdong Hangxin Technology Co., Ltd. has independently developed the "Full Resource Utilization and High-Value Process for Graphene Oxide Waste Sulfuric Acid Liquor", which has been granted a national invention patent.
This innovative process enables the following key outcomes:
1.Efficient sulfuric acid reuse: Recovers sulfuric acid at a concentration of 92%-95%, allowing it to be directly returned to the production line for a closed-loop raw material cycle.
2.Valuable resource extraction: Converts manganese and potassium in the waste acid residue into industrial-grade manganese carbonate and agricultural-grade ammonium potassium sulfate, truly turning waste into treasure.
3. Clean production throughout the process: Achieves zero process wastewater discharge and compliant waste gas emissions, realizing genuine green circularity.
This project serves as China's first demonstration project for large-scale, resource-oriented treatment of graphene oxide waste acid. It not only establishes a green production closed loop for the client, significantly reducing costs while enhancing efficiency, but also provides a replicable benchmark solution for the entire graphene industry's transition toward "green manufacturing and circular economy".
Looking ahead, Guangdong Hangxin Technology Co., Ltd. will continue to uphold its principle of "pursuing excellence and prioritizing quality", assembling a professional project management team to ensure the project is completed safely, with superior quality, and high efficiency.
Taking this successful bid as a new starting point, the company will further increase R&D investment and deepen its technological layout in the field of graphene environmental treatment and resource utilization. Hangxin Technology is committed to contributing to the sustainable development of the industry and enhancing the green competitiveness of China's new materials sector.
Congratulations to the entire Hangxin team on this remarkable milestone—setting a strong precedent for eco-friendly innovation in advanced nanomaterials!
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