en.Wedoany.com Reported - A new industrialization pathway has emerged for the recovery and utilization of ilmenite tailings. Niutech, a global industrial continuous pyrolysis technology company, announced that its independently developed "New Generation Ilmenite Tailings Reduction and Enrichment Technology and Complete Equipment" has passed evaluation by a national-level professional institution, with the technological achievement recognized as "Internationally Advanced Level." A demonstration project centered on this technology, the "Annual 300,000-ton Tailings Production of High-Quality Titanium-Rich Material Demonstration Project," is under construction in Linyi City, Shandong Province. Once completed, it will become a significant strategic mineral resource green recovery demonstration project in Asia. This new equipment represents Niutech's strategic deployment in the comprehensive utilization of mineral resources, employing its "low-temperature pyrolysis-in-situ reduction" synergistic technology. Designed around the concepts of safety, environmental protection, low carbon, and high efficiency, it has achieved technological upgrades in reduction temperature control, waste heat energy self-circulation, and intelligent system management.
Titanium is widely used in high-end manufacturing fields such as aerospace, chemical engineering, and medical industries due to its performance characteristics. Ilmenite tailings primarily originate from the development of resources like vanadium-titanium magnetite and ilmenite, generally characterized by low grade, complex composition, and abundant associated resources. Traditional electric furnace smelting methods require high-temperature operations with relatively high energy consumption, while wet processes face challenges such as cumbersome procedures and significant environmental pressure. With the advancement of the circular economy and corporate ESG goals, the comprehensive utilization industry of mineral resources is transitioning towards lower energy consumption, higher efficiency, and fuller resource utilization. A Niutech technical leader introduced that the new generation of equipment leverages the company's accumulation in industrial continuous pyrolysis technology, significantly reducing reaction temperatures through cross-field innovation, combining waste resource treatment with green carbon reduction, and exploring a new process pathway that balances both economic viability and environmental protection.
Niutech's solution uses organic waste such as waste plastics as a reducing agent, first generating reducing gas through low-temperature pyrolysis, and then completing the in-situ reduction of ilmenite tailings within a single integrated equipment unit. This solution integrates solid waste treatment, tailings enrichment, and energy circulation, breaking the traditional notion that 'efficient reduction requires high temperatures.' The entire production line features three prominent characteristics: First, achieving continuous reduction under low-temperature conditions. The company's developed efficient dynamic contact and online thermal dispersion synergistic control technology enables a reduction rate exceeding 50%; the system completes reactions below 700°C, with industrial operating temperatures controlled between 550°C and 600°C, far lower than traditional high-temperature smelting processes. Second, high energy utilization efficiency. The production line is equipped with waste heat recovery, exhaust gas reuse, and reducing gas self-supply systems, achieving a waste heat utilization rate exceeding 93%, comprehensive energy consumption reduced by over 36% compared to traditional processes, and carbon dioxide emissions per unit product reduced by approximately 40%. Third, safe and intelligent operation. The system is equipped with a material-temperature synergistic control, dynamic sealing, and intelligent control platform, capable of supporting large-capacity continuous and stable operation.
