An analytical method for rapid combined measurement of ni, cu, fe, s, pb, zn, as, sb, bi, sio2 in matte
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A matte and joint measurement technology, which is applied in the fields of analyzing materials, using wave/particle radiation for material analysis, measuring devices, etc. and other problems, to achieve the effect of fast detection and analysis, solving inaccurate detection, and saving processing time.
Active Publication Date: 2018-06-08
广西金川有色金属有限公司
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[0004] The status quo of national standards: The detection and analysis of each element in the nonferrous metal industry standard "Matte" YS / T990-2014 of the People's Republic of China basically adopts single element detection, and the joint measurement of the main component and the secondary component has not been realized. Completed The multi-element determination of a sample takes 4-8 hours, and the detection and analysis time and detection efficiency are obviously insufficient
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[0029] The present invention will be further described below in conjunction with specific examples.
[0030] A rapid joint measurement of Ni, Cu, Fe, S, Pb, Zn, As, Sb, Bi, SiO in matte 2 The analysis method, this method comprises the following steps:
[0031] Step 1. Grinding the sample to be tested: Take 100-150g of the matte sample to be tested and put it into a grinding table, grind it in the sample pulverizer for 50-60s, control the particle size to be greater than 120 mesh, and pack it into a bag.
[0032] Step 2. Pressing the sample piece to be tested: Put a circular funnel-shaped sample mold with a diameter of 32mm into the press machine, take 4-6g of the matte sample to be tested with a horn spoon and put it into the mold, and use industrial boric acid 10- 20g edging bottom, under the conditions of pressure 20-25T and holding time 25-30s, make a sample piece with a diameter of 32mm on a hydraulic sample making machine with a range of 0-50T, and blow off the adhered b...
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Abstract
The invention discloses an analysis method for rapid combined measurement of Ni, Cu, Fe, S, Pb, Zn, As, Sb, Bi, SiO2 in matte. The method comprises the following steps: grinding the sample to be tested; Sample sheet pressing; preparation of standard samples; preparation of instrument drift correction samples; drawing of working curves; special matrix correction; instrument drift correction; determination of sample sheets to be tested; calculation of analysis results. The invention realizes the rapid determination of Ni, Cu, Fe, S, Pb, Zn, As, Sb, Bi, SiO2 elements or components in copper matte, and can complete the multi-element or component coupling of one sample within 10 minutes. It solves the defects of the traditional single-element and single-method determination, and realizes the joint measurement of the main component and the secondary component. Compared with the national standard, the sample analysis time is saved by more than 4 hours. The detection and analysis speed of the present invention is fast, the labor efficiency is high, the operation is simple and convenient, and it has good application prospects and high practical value.
Description
technical field [0001] The invention belongs to the field of chemical analysis and detection of matte, in particular to a rapid joint measurement of Ni, Cu, Fe, S, Pb, Zn, As, Sb, Bi, SiO in matte 2 analysis method. Background technique [0002] According to the national standard GB / T11086-1989 "Terms of Copper and Copper Alloys", unrefined copper includes matte, which is also called copper matte, which is a eutectic of heavy metal sulfides produced during the copper ore smelting process. It is mainly formed by mutual melting of cuprous sulfide and ferrous sulfide, and also dissolves a small amount of other metal sulfides (such as Ni 3 S 2 , PbS, ZnS, etc.), iron oxide (FeO, Fe 3 o 4 ), precious metals (Au, Ag), platinum group metals and trace gangue components. Its copper content is between 20% and 70%, and its sulfur content is between 15% and 25%. Matte is the main product of the smelting furnace and an important raw material for the production of blister copper in ...
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