An analytical method for rapid joint measurement of ni and other elements in flash smelting slag

A technology of flash smelting and analysis method, which is applied in the field of chemical analysis and detection, can solve the problem that the element standard curve is not linear, and achieve the effects of fast detection and analysis, fast determination, and fast sample preparation process

Active Publication Date: 2019-01-25
广西金川有色金属有限公司
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Problems solved by technology

[0009] The purpose of the present invention is to provide an analytical method that uses the high-efficiency and fast characteristics of X-ray fluorescence spectrometer, selects the standard spectral line correction mode, and solves the technical problem of non-linearity and poor linearity of the standard curve of elements in smelting slag

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  • An analytical method for rapid joint measurement of ni and other elements in flash smelting slag
  • An analytical method for rapid joint measurement of ni and other elements in flash smelting slag
  • An analytical method for rapid joint measurement of ni and other elements in flash smelting slag

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] The present invention is a rapid joint measurement of Ni, Cu, Fe, S, CaO, MgO, SiO in flash smelting slag 2 , Pb, Zn, As, Sb, Bi's analytical method This method is carried out according to the following steps:

[0038] 1) Preparation of samples: first, sample grinding, put 100-150g of flash smelting slag into the grinding plate of the sample pulverizer and grind for 50-60s, and put the ground samples into coded sample bags; 2. Sample pressing, put the sample mold into the sample press, take out 4g~6g of the sample from the coded sample bag with a horn spoon and put it into the sample mold, use industrial boric acid to trim the bottom of the sample mold, and the press maintains the pressure Under the conditions of 25-28T and holding time of 25-30s, the sample is made into a sample piece with a diameter of 32mm, and the industrial boric...

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Abstract

The invention belongs to the technical field of chemical analysis detection, and specifically relates to an analysis method for rapid combined determination of Ni, Cu, Fe, S, CaO, MgO, SiO2, Pb, Zn, As, Sb and Bi in flash smelting furnace slag. The method comprises: preparing a sample sheet, preparing a standard sample sheet, preparing an instrument drift correction sample sheet, determining the instrument drift correction sample sheet, selecting a special matrix correction method, determining the sample sheet, and calculating the analysis result. According to the present invention, the powder tableting is used, the sample pretreatment process is rapid, the rapid determining is achieved, the multi-element determination of one sample can be completed within 10 min, the labor efficiency is high, the operation is simple, the instrument analysis parameters and the matrix correction mode are unique, the appropriate instrument analysis parameters and the unique correction mode are explored, the technical problem that the partial element standard curve regression is not linear is solved, the multi-element combined determination can be performed, and the combined determination of the main component and the secondary components can be achieved.

Description

technical field [0001] The invention belongs to the technical field of chemical analysis and detection, in particular to a rapid joint detection of Ni, Cu, Fe, S, CaO, MgO, SiO in flash smelting slag 2 , Pb, Zn, As, Sb, Bi analysis methods. Background technique [0002] Flash smelting slag is the alkaline calcium ferrite slag that is discharged from the powdery copper matte in the flash smelting furnace when it undergoes strong oxidation and vulcanization reactions to form blister copper. The main components are copper, iron, sulfur, calcium oxide, dioxide silicon etc. Flash smelting uses calcium ferrite slag. Compared with iron silicate slag, calcium ferrite slag has a much stronger ability to dissolve iron tetroxide, which can reach more than 20%. Moreover, the slag contains 20% copper oxide, which is oxidized in large quantities. The presence of copper greatly improves the ability of the slag to dissolve ferric oxide, which is of great significance to stabilizing the fu...

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Application Information

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IPC IPC(8): G01N23/223G01N1/28
CPCG01N1/286G01N23/223G01N2001/2866
Inventor 唐书天殷昕王纪华史光源王勇
Owner 广西金川有色金属有限公司
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