Fluorspar to fluorochemicals upon low-temperature activation in water.

ABSTRACT: The dangerous chemical hydrogen fluoride sits at the apex of the fluorochemical industry, but the substantial hazards linked to its production under harsh conditions (above 300 degrees Celsius) and transport are typically contracted to specialists. All fluorochemicals for applications, including refrigeration, electric transportation, agrochemicals and pharmaceuticals, are prepared from fluorspar (CaF₂) through a procedure that generates highly dangerous hydrogen fluoride^1-5. Here we report a mild method to obtain fluorochemicals directly from fluorspar, bypassing the necessity to manufacture hydrogen fluoride. Acid-grade fluorspar (more than 97 per cent CaF₂) is treated with the fluorophilic Lewis acid boric acid (B(OH)₃) or silicon dioxide (SiO

SUBMITTER: Klose I 

PROVIDER: S-EPMC11560839 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature