In conventional rare earth mining, ammonium sulphate is used as a leaching agent and ammonium bicarbonate removes impurities. A Chinese team says it has developed a greener method. Photo: Reuters
In conventional rare earth mining, ammonium sulphate is used as a leaching agent and ammonium bicarbonate removes impurities. A Chinese team says it has developed a greener method. Photo: Reuters
Science

Chinese rare earth tech innovation aims for faster, cleaner extraction: paper

  • Guangzhou team says their electric power method could make China even more competitive in global supply chain
  • ‘Technique is viable, both environmentally and economically, revealing new paths for the sustainable harvesting of natural resources’: Professor He Hongping

In conventional rare earth mining, ammonium sulphate is used as a leaching agent and ammonium bicarbonate removes impurities. A Chinese team says it has developed a greener method. Photo: Reuters
In conventional rare earth mining, ammonium sulphate is used as a leaching agent and ammonium bicarbonate removes impurities. A Chinese team says it has developed a greener method. Photo: Reuters
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