On Oct. 12, in the final competition of 20 projects in Group B of the first "WuChuangyuan" International Photochemistry and Green Manufacturing Technology Innovation Competition, Zhang Wenxiong's team project "New technology for the manufacture of organophosphorus acid without chlorination of yellow phosphorus" ranked second and won the innovation award of this competition.

　　The project realized the non-chlorination synthesis of the well-known dominant axial chiral phosphoric acid, bulk organic phosphoric acid and thiochiral phosphoric acid. The method has the advantages of simple operation, easy separation of products, high yield, no chloride ion pollution, and the additives can be recycled. This method breaks through the traditional chlorination method and directly synthesizes organophosphorus compounds from industrial raw material yellow phosphorus, providing green manufacturing technology for the synthesis of organophosphorus compounds.

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