Abstract：There was no corresponding national standard or industrial standard for determination of components in crude copper converting slag. As a result, a determination method of components in crude copper converting slag was established by X-ray fluorescence spectrometry (XRF) with pressed powder pellet. The analytical conditions were obtained as follows by experiments: the sample grinding time was 60 s; the particle size was 180 mesh (84 μm); the sample pressing pressure was 25 t; the pressing time was 25 s; the working current and voltage was 50 mA and 60 kV, respectively. The problem of poor linearity of calibration curves for Pb, Sb and Bi was solved through correction by theoretical α coefficient and empirical coefficient method. The root mean square deviation (RMS) and quality factor (K) of calibration curves of each component could meet the requirements. Seven specimens of the same flash crude copper converting slag were prepared for precision tests. The relative standard deviations(RSDs) were less than 2% for the major components with mass fraction not less than 1%, while the RSDs were less than 10% for the minor components with mass fraction lower than 1%. The crude copper converting slag sample was analyzed according to the experimental method. The results were consistent with those obtained by other methods. Although the determination deviation of Cu was relatively higher, it could still meet the requirements for rapid ladle analysis.
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