Casale and Anhui Haoyuan advance sustainable melamine production with uLEM-N technology
Casale has launched a new project in partnership with Anhui Haoyuan Chemical Group, a major player in China’s chemical industry. This initiative marks another key milestone in a relationship built on trust, innovation and long-term collaboration.
The new melamine production plant will feature Casale’s uLEM-N technology, with a design capacity of 60,000 tpy, and will be fully integrated into an urea plant operated by Anhui Haoyuan.
This is the third project developed together, following the successful implementation of two 1,500 MTD ammonia synthesis loop plants based on Casale’s N-LOOP™ technology. These repeated collaborations demonstrate the strength and continuity of our partnership — one that keeps evolving toward higher efficiency and lower environmental impact.
At the heart of this new plant is uLEM-N, Casale’s most advanced melamine process innovation, which introduces a significant shift in sustainable design by:
- Eliminating caustic soda usage entirely thanks to the ammonia-based purification
- Featuring a highly efficient and proven high-pressure synthesis section
- Using proven urea-based off-gas scrubbing
- Operating with a zero liquid discharge (ZLD) approach
- Ensuring simplest integration with urea plants
- Reducing CAPEX and optimizing operations
Thanks to these features, uLEM-N sets a new benchmark in melamine production, reducing environmental impact while maximizing plant performance.
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