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Concentrate metal content measurement method based on portable XRF

A measurement method and content technology, which is applied in the field of mineral processing and smelting, can solve the problems of easy adsorption, easy pollution of PXRF probes, and reduced accuracy of PXRF measurement, so as to achieve the effects of improving accuracy, avoiding pollution, and reducing accidental errors

Inactive Publication Date: 2019-08-23
CHINA UNIV OF GEOSCIENCES (BEIJING)
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Problems solved by technology

The measurement accuracy of soil samples and water system sediment samples cannot meet the accuracy requirements of concentrate samples
Moreover, concentrate samples gen

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  • Concentrate metal content measurement method based on portable XRF
  • Concentrate metal content measurement method based on portable XRF

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Embodiment Construction

[0029] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] A PXRF-based method for the determination of metal content in concentrates, comprising the steps of:

[0031] Step 1: Calibrate the metal content of the concentrate standard sample; specifically, take 21 Fe-containing concentrate standard samples with different Fe element contents in the laboratory, and use the laboratory X-ray fluorescence spectrometry to measure the Fe content in the above 21 standard samples. Standard value set X of element content Fe .

[0032] Step 2: Carry out film-coating transformation to the measurement window of PXRF, that is, install a transparent film at the front end of the measurement window to isolate the measurement window from the concentrate to be measured, so as to avoid contamination of the measurement window by the concentrate...

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Abstract

The invention discloses a concentrate metal content measurement method based on a portable XRF. The conventional portable XRF is subjected to film coating modification, and standard sample calibrationis carried out on the portable XRF after being subjected to film coating modification by virtue of a linear regression analysis method in advance in a laboratory; only a standard collection and standard preparation process of a concentrate standard sample needs to be carried out in the laboratory, a calibration curve equation of the portable XRF after being subjected to film coating modificationis obtained, the in-situ determination of the concentrate sample can be realized; and the standard collection and standard preparation process of the concentrate sample do not need to be carried out again, so that the multi-element metal content analysis can be rapidly and economically realized in the concentrate production place of the field, and the accuracy of the portable XRF measurement result can be greatly improved.

Description

technical field [0001] The invention relates to a method for quickly detecting the metal content of a concentrate sample by using a portable X-ray fluorescence spectrometer (PXRF), in particular to a method for measuring the metal content of a concentrate based on a portable X-ray fluorescence spectrometer, and belongs to the technical field of mineral processing and smelting. Background technique [0002] In the field of mineral processing and smelting, the current metal content analysis of concentrate samples mainly relies on traditional titration methods, laboratory X-ray fluorescence spectrometry, etc. In the process of sample analysis and other processes, the cycle of sample collection and preparation is long and the cost is high; and the process of sample analysis can only be completed in laboratories with relatively complete equipment and technical personnel; Quantitative analysis of metal content reduces the decision-making efficiency in the process of ore dressing a...

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Application Information

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IPC IPC(8): G01N23/223
CPCG01N23/223
Inventor 周树斌成秋明袁兆宪张振杰杨玠张小龙陈国雄
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)
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