| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for accurately, quantitatively determining kaolins in an ore. <P>SOLUTION: The method for quantitatively determining kaolins in an ore is a method of measuring the present quantity of the kaolins in the ore such as an iron ore or the like by directly observing a specific chemical structure of the kaolins or utilizing a quantitative dehydration intrinsic for the kaolin. That is, the method comprises the steps of: (1) conducting an infrared absorptiometric analysis of an ore sample, obtaining a peak intensity of the waveform of the absorbance of a -OH group appearing in a wave number of 3,800 to 3,600 cm<SP>-1</SP>or the peak intensity from the integrated value of the waveform, and quantitatively determining the kaolin or the like in the ore sample; and (2) removing other moisture generating factors than the kaolin included in the ore sample at a temperature of 100 to 380°C from the ore sample, then quantitatively determining the moisture discharged from the sample at a temperature of 400 to 550°C, and calculating the kaolin or the like in terms of the moisture quantity. <P>COPYRIGHT: (C)2004,JPO</p> |
