一种利用氟化铝和氟硅酸钠生产四氟化硅和冰晶石的方法

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The reaction of aluminum fluoride and sodium fluorosilicate produces high-purity silicon tetrafluoride and cryolite, solving the problems of cumbersome production steps, high costs, and significant safety hazards in existing technologies, and achieving a highly efficient and environmentally friendly production process.

CN118419939BActive Publication Date: 2026-07-17KUNMING UNIV OF SCI & TECH

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: KUNMING UNIV OF SCI & TECH
Filing Date: 2024-05-30
Publication Date: 2026-07-17

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Abstract

本发明涉及一种利用氟化铝和氟硅酸钠生产四氟化硅和冰晶石的方法，属于氟化物生产加工技术领域。本发明主要通过氟化铝与氟硅酸钠反应生成亚冰晶石和需要制备的四氟化硅，生成的亚冰晶石又通过与氟化钠反应得到冰晶石。在反应过程中没有其它杂质气体的引入和生成，故，通过该方法可以制得较纯的四氟化硅气体。本方法适用于氟化铝和氟硅酸钠制备四氟化硅和冰晶石，具有流程短，成本低，产品纯度高，生产效率高，产量大，生产过程对环境友好，产品附加值高等优点。

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