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Rapid determination method suitable for chemical components in bentonite and clay

A technology for rapid determination of chemical composition, applied in the preparation of test samples, material analysis using wave/particle radiation, measurement devices, etc. Long, accurate results

Inactive Publication Date: 2019-03-08
LIUZHOU IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of quick determination method that is applicable to bentonite, clay chemical composition, this method can solve bentonite, the problem that the content of chemical composition of clay determination exists complicated operation and analysis cycle is long

Method used

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  • Rapid determination method suitable for chemical components in bentonite and clay
  • Rapid determination method suitable for chemical components in bentonite and clay
  • Rapid determination method suitable for chemical components in bentonite and clay

Examples

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Embodiment 1

[0034] The present embodiment comprises the following steps to the rapid assay method of bentonite chemical composition:

[0035] A. Process the standard sample: select the standard sample of bentonite, pass through a 150-mesh molecular sieve, dry at 105°C for 2 hours, and then put it in a desiccator to cool;

[0036] B. Preparation of standard samples: Weigh 0.6000g of the standard sample of bentonite obtained in step A and place it in a small white cup, add 6.0000g of mixed flux to the small white cup, and the mixed flux is 67% water-free by mass percentage Composed of lithium tetraborate and 33% lithium metaborate, stir evenly, then transfer to a platinum crucible, add 5 drops of 40% ammonium bromide solution, put the crucible into a melting machine, pre-oxidize at 800°C for 5min, and then heat up to 1100°C Melt at ℃ for 20 minutes, shake the molten material in the crucible during the melting process; after the melting is completed, take out the crucible and let it rest for...

Embodiment 2

[0043] The present embodiment comprises the following steps to the rapid assay method of bentonite chemical composition:

[0044] A. Process standard samples: select standard samples of bentonite, pass through 180 mesh molecular sieves, dry at 105°C for 2 hours, and then cool in a desiccator;

[0045] Steps B to D are the same as in Example 1.

Embodiment 3

[0047] The present embodiment comprises the following steps to the rapid assay method of clay chemical composition:

[0048] A. Process the standard sample: select the standard sample of clay, pass through a 200-mesh molecular sieve, dry at 105°C for 2 hours, and then put it in a desiccator to cool;

[0049] The bentonite in step B to step D is replaced by clay, and other features are the same as in Example 1.

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Abstract

The invention discloses a rapid determination method suitable for chemical components in bentonite and clay, and relates to the technical field of non-metallic mineral component analysis. The method comprises the following steps of: selecting standard samples of bentonite and clay, screening and drying; adding a mixed solvent of anhydrous lithium tetraborate and lithium metaborate into the dried standard sample of bentonite and clay, mixing uniformly, adding a demolding agent, and heating and fusing after pre-oxidization to obtain a standard sample sheet; determining the spectral line intensity of each chemical component in the standard sample sheet by adopting an X-ray fluorescence spectrometer respectively, and working curves of silicon, aluminum, iron, potassium, sodium and chlorine inthe bentonite and the clay are established; determining the fluorescence intensity of the sample sheet to be determined according to the working curves to obtain the content of silicon, aluminum, iron, potassium, sodium and chlorine in the sample sheet to be determined. By adopting the method, the problems of complex operation and long analysis period during determination of chemical component content of the bentonite and the clay are solved.

Description

technical field [0001] The invention relates to the technical field of component analysis of non-metallic minerals, in particular to a rapid determination method suitable for chemical components of bentonite and clay. Background technique [0002] At present, bentonite and clay are widely used in the iron and steel industry. Bentonite acts as a binder in the process of forming iron concentrate powder. Adding an appropriate amount can optimize the pelletizing performance of iron concentrate powder. , will reduce the grade of pellets and increase the content of harmful elements, which is not conducive to production, and there is currently no commercially available national standard sample of bentonite. Clay is mainly used in iron and steel enterprises as raw materials for the production of shaped refractory materials (bricks of various specifications) and unshaped refractory materials, of which Fe 2 o 3 is the main harmful component of refractory clay, K 2 O and Na 2 O is ...

Claims

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Application Information

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IPC IPC(8): G01N23/223G01N1/28
CPCG01N1/28G01N23/223
Inventor 黄芝敏沈敏覃丹柳陈海黄双凤黄庆莉周正林秀玲牛芬
Owner LIUZHOU IRON & STEEL