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Method for preparing MLA test resin polished section from collophanite powder sample

A technology for sample preparation and collophosphate rock, applied in the field of collophosphate powder sample preparation MLA test resin light sheet, which can solve the problems of long secondary inlay time, poor dispersibility of collophosphate rock, and unsatisfactory test results, and achieve consistency Good, high accuracy, and the effect of improving efficiency

Pending Publication Date: 2022-03-01
YUNNAN PHOSPHATE CHEM GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing MLA test resin light sheets from collophosite powder samples, so as to solve the problem of unsatisfactory detection results and low detection efficiency caused by poor dispersion of collophosite and long secondary mosaic time when preparing MLA light sheets. The problem

Method used

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  • Method for preparing MLA test resin polished section from collophanite powder sample
  • Method for preparing MLA test resin polished section from collophanite powder sample
  • Method for preparing MLA test resin polished section from collophanite powder sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 Shown is a kind of method for preparing MLA test resin light sheet of collophosite powder sample, and its specific implementation steps are as follows:

[0029] (1) The lumpy or coarse-grained glenite or its tailings samples are processed into finer-grained samples by crushing and grinding, and processed by wet sieving with 200 mesh, 300 mesh, 400 mesh, and 500 mesh sieves Sieve the final or powdery samples, then filter, dry and weigh the sieved samples of each particle size, and finally shrink the samples of each particle size to 1~2g for later use. If the sample is relatively coarse, it can be re-sieved at 200°C for several particle fractions.

[0030] (2) According to the weight ratio of 25:3, pour a sufficient amount of epoxy resin glue and curing agent into the mixing cup in turn and stir well, and let it stand for 10-20 minutes to let the air bubbles overflow. The resin glue required for each resin light sheet is about 7g, and the amount of the prepared...

Embodiment 2

[0036] Use a collophosite sample to prepare an MLA test resin light sheet, and prepare the sample through the following steps:

[0037] 1. The powdered colloidal rock samples are sieved with 200 mesh, 300 mesh, 400 mesh, and 500 mesh sieves in turn, and the sieved samples of each particle size are filtered, dried, weighed, and shrunk to 1 ~ 2g spare.

[0038] 2. Prepare 30g of epoxy resin glue and curing agent according to the weight ratio of 25:3 for later use.

[0039] 3. Prepare a sample label of appropriate size and fill in the relevant information of the sample, and prepare 5 mounting molds.

[0040] 4. Inject 6.25g of epoxy resin glue into a mixing cup, then add 1g of samples with a particle size of -500 mesh, and stir clockwise with a stirring rod for 2 minutes. Add water above 40°C into the ultrasonic cleaner, and put the mixing cup into the ultrasonic cleaner for 1 hour of ultrasonication.

[0041] 5. Take 4 sample mounting molds, inject 5g of prepared resin glue i...

Embodiment 3

[0045] At present, the reverse flotation process is mostly used for the removal of impurities and phosphorus in collophanite. The fineness of reverse flotation tailings is relatively finer, and the sample preparation is more difficult. Use a collophosite reverse flotation tailings sample to prepare an MLA test resin light sheet, and prepare the sample through the following steps:

[0046] 1. Sieve the tailings samples of powdered colloidal reverse flotation with 200-mesh, 300-mesh, 400-mesh, and 500-mesh sieves in turn, and filter, dry, and weigh the sieved samples of each particle size , and shrink down to 1-2g for later use.

[0047] 2. Prepare 30g of epoxy resin glue and curing agent according to the ratio of 25:3 by weight.

[0048] 3. Prepare a sample label of appropriate size and fill in the relevant information of the sample, and prepare 5 mounting molds.

[0049] 4. Inject 6.25g of epoxy resin glue into a mixing cup, then add 1g of samples with a particle size of -50...

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Abstract

The invention discloses a method for preparing an MLA test resin polished section from a collophanite powder sample, and relates to the technical field of collophanite analysis and detection. Screening the collophanite sample by using a wet screening method to obtain collophanite powder samples of various size fractions; for a sample with the particle size of + 500 meshes, injecting the prepared resin adhesive into the mold, adding the sample, putting the label, then injecting the prepared resin adhesive, vacuumizing, taking out, standing and hardening; for a sample with the size fraction of-500 meshes, adding epoxy resin glue into the sample, ultrasonically stirring in a hot water bath, injecting a curing agent, putting a label, injecting the prepared resin glue, vacuumizing, taking out, standing and hardening; and grinding and polishing the hardened sample to obtain the resin polished section. The sample is subjected to screening pretreatment and grading embedding, so that the problem of poor dispersity of the micro-fine particle powder sample in the embedding process is solved, the problem of difficulty in setting MLA measurement parameters caused by large particle size distribution span of the collophanite sample is solved, and meanwhile, the problem of long time consumption of secondary embedding is avoided.

Description

technical field [0001] The invention relates to the technical field of collophosite analysis and detection, in particular to a method for preparing an MLA test resin light sheet from a collophanite powder sample. Background technique [0002] Phosphorus is one of the five main elements that constitute organisms, and plays an important role in biological metabolism, energy conversion and life information inheritance. Phosphorus is mainly derived from sedimentary collophanite, which has a fine particle size and complex intercalation relationship. Generally, it needs to be ground to -200 mesh, accounting for about 90%, before it can be recovered by beneficiation and enrichment. In the flotation process, in order to facilitate the quality control of each link, the composition of the ore produced in each link will be tested and analyzed. MLA (Mineral Liberation Analyzer) has the characteristics of automatic speed, accurate data and high reproducibility. In recent years, it has b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/36G01N1/28G01N1/40G01N1/44
CPCG01N1/36G01N1/286G01N1/4077G01N1/44G01N2001/366G01N2001/2866G01N2001/4088
Inventor 庞建涛李树建肖喆杨建光王灿霞李若兰
Owner YUNNAN PHOSPHATE CHEM GROUP CORP
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