Waste Sodium Sulphate Turned to Soda Ash
release time:
2025-11-27
Researchers at the Chinese Academy of Sciences have developed a short - process conversion technology that transforms waste sodium sulphate into high - purity soda ash (sodium carbonate)
Researchers at the Chinese Academy of Sciences have developed a short - process conversion technology that transforms waste sodium sulphate into high - purity soda ash (sodium carbonate), a critical raw material for glass, paper, and chemical production. Unlike conventional methods that require multiple reaction steps and large amounts of water, this new process uses a specialized catalyst to complete the conversion in just two stages. Pilot tests show the technology cuts production costs by 22%, saves 20% of energy, and reduces wastewater discharge by 45%. A major chemical company in Shanxi province plans to adopt the tech in a 50,000 - ton - per - year production line starting in 2026.
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