Melting flaking method of copper concentrate for X-ray fluorescent spectrometry

Abstract

The invention discloses a melting flaking method of copper concentrate for X-ray fluorescent spectrometry. A lithium tetraborate and lithium metaborate mixed solvent serves as a base in a platinum crucible, sodium carbonate, silica, lithium nitrate and a copper concentrate sample are weighed, put into the platinum crucible in sequence and stirred evenly, the mixture is covered with a lithium tetraborate and lithium metaborate mixed solvent, put into a 600 DEG C muffle furnace, taken out after 15 min and then melted with a sample smelting furnace at 800 DEG C, a releasing agent is added and fully shaken evenly, the mixture is poured into a mould, cooled and then taken out, and sample flakes are obtained. By means of the method, it is guaranteed that sulfur in copper concentrate can remain in the sample flakes stably rather than be lost due to high temperature in the preparation process. The method is suitable for determination of the content of copper, sulfur, lead, zinc, manganese, arsenic, iron, silicon, aluminum, magnesium, calcium and other elements in copper concentrate.

Description

technical field [0001] The invention relates to a method for making sheets by melting copper concentrate for X-ray fluorescence spectrometry. Background technique [0002] Copper concentrate is a strategic resource material, which is related to the national economy and people's livelihood. In the existing chemical analysis methods of copper concentrate, single-element determination method is mostly used for the content of primary and secondary elements, which is time-consuming, laborious and costly, and the reagents used cause great environmental pollution. Wavelength dispersive X-ray fluorescence spectrometry has the advantage of simultaneous measurement of multiple elements. The formulation of this method can quickly determine a variety of primary and secondary elements (components) in copper concentrates, with low testing costs and less environmental pollution. There are standard methods for X-ray fluorescence spectroscopic analysis: ISO9516, SN / T0832, GB / T24519 and YS / T...

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Problems solved by technology

There are standard methods for X-ray fluorescence spectroscopic analysis: ISO9516, SN / T0832, GB / T24519 and YS / T820.23, etc., which are used for the detection of iron ore, manganese ore and laterite nickel ore; copper, lead and zinc sulfide concentrates have not yet been formulated The standard method of X-ray fluorescence spectroscopic analysis, the main difficulty is that the high sulfur content in the sample hinders the melting sample preparation, sulfur will corrode the platinum crucible at high temperature, and at the same time, the weight loss of the sample caused by the loss of sulfur-formed gas makes the detection result impossible to quantitatively calculate

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