en.Wedoany.com Reported - Through the collaborative efforts of Baowu Environment Technology's subsidiary, Baowu Environment Technology Ma'anshan, and Baowu Resources' Zhangzhuang Mine, the ultra-fine tailings disposal collaboration project achieved large-scale implementation in 2025, disposing of 26,800 tons of ultra-fine tailings throughout the year. The project cumulatively supplied approximately 59,000 tons of new mine consolidation agents, with a filling operation area of 536,400 cubic meters, directly reducing costs by about 4 million yuan.

The project was jointly led by Baowu Resources' New Materials Business Development Department, Baowu Resources, and Baowu Environment Technology. Baowu Resources' Zhangzhuang Mine provided the raw ultra-fine tailings, filling operation sites, and on-site support; Baowu Environment Technology Ma'anshan undertook the formulation development, quality control, and application adaptation of the new mine consolidation agents with the ultra-fine tailings. The project's challenge lay in the large annual volume of tailings generated by Zhangzhuang Mine's beneficiation process, among which ultra-fine tailings with particle sizes ≤0.030mm, accounting for 49.39%, were difficult to utilize conventionally due to their large specific surface area, high water demand, susceptibility to bleeding and segregation, and low early strength. The team developed a dedicated consolidation agent using Masteel's blast furnace slag as raw material to compensate for the low activity of the ultra-fine tailings. After multiple rounds of industrial trials and third-party core sampling verification, the average compressive strength and specimen density stability all met the mine design requirements.

Baowu Environment Technology is a specialized company under China Baowu engaged in comprehensive utilization of solid waste resources, while Baowu Resources is the mineral resources segment of China Baowu. In the next step, both parties will continue to deepen collaborative innovation, optimize the performance of consolidation materials, further enhance the capacity for fine sand digestion and disposal, and steadily advance toward the goal of full resource utilization of tailings.

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