At the Aluminum Forum of Indonesia Critical Minerals Conference 2025, Hu Guojing, Technical Director of JGHECEPT Co., Ltd., shared insights on the topic of "Carbon-saving Technology and Detection Standards for Aluminum Anodes Anti-oxidation Functional Ceramic Coatings."
JGHECEPT is a high-tech enterprise dedicated to the research, development, and promotion of energy-saving and consumption-reducing technologies in the aluminum industry.
With two decades of in-depth research into inorganic materials, relying on the powerful R&D platform of the Henan Provincial Engineering Technology Center, and through close collaboration with key institutions such as Wuhan University of Science and Technology and Zhengzhou University, JGHECEPT has gained a deep understanding of the core technological needs of the aluminum industry. This has led to the development of a unique integrated solution for anti-oxidation functional ceramic coatings on anodes. The solution has been successfully applied in numerous large-scale aluminum plants both domestically and overseas, achieving significant results, with an average carbon saving of 15 kg/mt-Al. The implementation of this technology not only significantly reduced carbon emissions and the amount of carbon dross recovered but also contributed greatly to environmental protection. Notably, in July 2023, JGHECEPT independently developed and launched an automatic intelligent online spraying device for the aluminum industry, solving the last-mile problem in the promotion of coating technology and bringing a disruptive technological revolution to the entire industry.
Advantages of the Intelligent Automatic Online Spraying Equipment:
1. Stable spraying quality and reliable equipment operation.
2. Environmentally friendly, with a clean spraying site.
3. Optimized anode transport tracks, with intelligent spraying equipment designed according to on-site conditions, capable of automatically spraying one anode every 40 seconds.
Product and Technical Advantages:
1. Extend anode cycle by 1-2 days
① Improve adhesion between the coating and the anode;
② Enhance high-temperature toughness and thermal shock resistance of the coating;
③ The coating can penetrate the micro-pores on the anode surface, creating a "nail effect."
2. Curing and densification at room temperature
After spraying, the coating naturally forms a film and cures without the need for sintering, providing protective effects once it enters the pot.
3. Green and environmentally friendly
The main component of the coating is alumina, and all auxiliary components are safe and environmentally friendly inorganic materials, which do not affect the quality of primary aluminum or the composition of the electrolyte.
Economic Benefits of Industrial Applications
By adopting our company's carbon-saving technology solution for aluminum anodes, the anode cycle is extended by one day, reducing gross anode consumption per metric ton of aluminum by 15 kg. Taking an aluminum production capacity of 1 million mt as an example, the economic benefits are calculated as follows:
Reduction in Net Anode Consumption
Calculating direct cost savings based on a reduction of 15 kg in gross anode consumption per metric ton of aluminum:
15 kg C/t-Al × 1,000,000 t-Al/year = 15,000 t C/year
15,000 t C/year × 5,500 yuan/t-C = 82.5 million yuan/year
Reduction in Electrolyte Carbon Slag
Carbon slag is reduced by more than 50%, with an annual carbon slag removal volume of nearly 5,000 t. A 50% reduction in carbon slag removal equals 2,500 t of carbon slag.
Reduction in Carbon Dioxide Emissions
By reducing anode oxidation loss, carbon dioxide emissions are decreased, resulting in an annual reduction of 50,000 mt of carbon dioxide emissions.
Reduction in Anode Replacement Workload
Extending the anode cycle by one day reduces the annual anode replacement workload by 15,000 anodes.
