Method for determining calcium fluoride content in dolomite-containing fluorite mine based on X fluorescence

The invention belongs to the technical field of determination of calcium fluoride in fluorite mine, and discloses a method for determining the content of calcium fluoride in dolomite-containing fluorite mine based on X fluorescence. The determination method comprises the following steps: grinding dolomite-containing fluorite ore, adding calcium-based hydrochloric acid, heating until the dolomite-containing fluorite ore is continuously boiled for 20-40 minutes, and cooling; adding water, and sequentially filtering and washing to obtain a precipitate; carrying out ashing treatment on the precipitate to obtain an ashing product; adding silicon dioxide into the ashing product to supplement the mass to be equal to the mass of the sample powder, and adopting a melting sample preparation method to prepare a sample to obtain a glass sheet; and determining the glass sheet through an X-ray fluorescence spectrophotometer by adopting a standard curve method to obtain the content of calcium fluoride in the dolomite-contai