Fluosilicic acid is one of the important byproduct of phosphate fertilizer enterprise, which is focused for its use by researchers. According to the company's development strategy, the research of technology in the production of hydrofluoric acid from fluoride acid-byproduct of wet process phosphoric acid (WPA) was launched by Yuntianhua International Chemical Co.,. Although the technology can produce high standard anhydrous hydrogen fluoride, but its development is limited, because in the production proces...