Fluorochemicals from fluorspar via a phosphate-enabled mechanochemical process that bypasses HF
作者:Calum Patel、Emy André-Joyaux、Jamie A. Leitch、Xabier Martínez de Irujo-Labalde、Francesco Ibba、Job Struijs、Mathias A. Ellwanger、Robert Paton、Duncan L. Browne、Gabriele Pupo、Simon Aldridge、Michael A. Hayward、Véronique Gouverneur
DOI:10.1126/science.adi1557
日期:2023.7.21
fluorochemicals—including elemental fluorine and nucleophilic, electrophilic, and radical fluorinating reagents—are prepared from hydrogen fluoride (HF). This highly toxic and corrosive gas is produced by the reaction of acid-grade fluorspar (>97% CaF 2 ) with sulfuric acid under harsh conditions. The use of fluorspar to produce fluorochemicals via a process that bypasses HF is highly desirable but remains
所有含氟化合物(包括元素氟以及亲核、亲电和自由基氟化试剂)均由氟化氢 (HF) 制备。这种剧毒和腐蚀性气体是由酸级萤石(>97% CaF2)在恶劣条件下与硫酸反应。使用萤石通过绕过 HF 的工艺来生产含氟化合物是非常理想的,但由于 CaF 的不溶性,仍然是一个未解决的问题2。受磷酸钙生物矿化的启发,我们在此公开了一种用磷酸氢二钾(K2羟基磷灰石4)在机械化学条件下。该过程提供了由结晶 K 组成的固体3(HPO4)F 和 K2− X 钙 y (采购订单3F) A (采购订单4) 乙 ,被发现适合形成硫-氟和碳-氟键。