Multi-component rare earth raw material sampling method

A multi-component, rare earth technology, applied in sampling devices, thermal excitation analysis, material excitation analysis, etc., can solve the problems of raw material failure and unrepresentative samples, and achieve the effect of accurate batching and true and reliable results.

Inactive Publication Date: 2015-01-28
JIANGXI RARE EARTH & RARE METALS TUNGSTEN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

One sample is taken for every additional 500kg, up to 7 samples. The disadvantage of such sampling is that the samples taken are not representative, because sometimes the

Method used

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  • Multi-component rare earth raw material sampling method

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Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Embodiment 1: A sampling method for lanthanum cerium rare earth metal raw materials, such as figure 1 As shown; a batch of lanthanum cerium rare earth metal raw materials weighs 10 tons, and there are 10 small batches in total, that is, each small batch is 1 ton, and each 1 ton is packed in 4 barrels. The supplier's material list is as follows: 10 sets of detection data. Take 3 barrels per 1 ton, that is, each small batch, and take one sample per barrel. For each small batch of three alloy ingot samples, drill the samples with a 7mm drill bit, and discard the ones 0.5-1.0mm away from the surface. Drill cuttings, and then put the drilled samples into the sampling bag immediately; then, after weighing the samples at a ratio of 1:1:1, a composite sample is formed, with a total of 10 composite samples. After comprehensive sample pretreatment, it was detected by ICP-AES spectrometer.

[0017] In order to prove the practicability and reliability of this method, the conven...

Example Embodiment

[0020] Embodiment 2: A sampling method for lanthanum cerium rare earth metal raw materials, such as figure 1 If the incoming material is 5 tons at a time, and the 5 tons of raw materials are one batch, each 1 ton is packed in at least 4 barrels, and only one set of test data is displayed on the supplier’s material list; then 6 barrels of incoming materials are randomly selected, Take one sample per barrel, drill the samples from 6 alloy ingot samples with an 8mm drill bit, discard the drill cuttings 0.5-1.0mm from the surface, and then put the drilled samples into the sampling bag immediately; every two samples According to the ratio of 1:1, the samples were weighed to form a composite sample, with a total of 3 composite samples. After comprehensive sample pretreatment, it was detected by ICP-AES spectrometer.

Example Embodiment

[0021] Embodiment 3: A sampling method for lanthanum cerium rare earth metal raw materials, such as figure 1 If the incoming material is 12 tons at a time, and the 12 tons of raw materials are one batch, at least 4 barrels are used for each 1 ton, and only one set of test data is displayed on the supplier’s material list; then 8 barrels of incoming materials are randomly selected, Take one sample per barrel, drill the samples from 8 alloy ingot samples with a 9mm drill bit, discard the drill cuttings 0.5-1.0mm from the surface, and then put the drilled samples into the sampling bag immediately; every two samples The samples were weighed in a ratio of 1:1 to form a composite sample, with a total of 6 composite samples. After comprehensive sample pretreatment, it was detected by ICP-AES spectrometer.

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Abstract

The invention discloses a multi-component rare earth raw material sampling method. The rare earth raw materials comprise lanthanum-cerium alloy, cell-grade mixed rare earth and a multi-component rare earth alloy composed of two or more rare earth elements. The rare earth raw materials are metals in as-cast state, have clean surfaces and no obvious oxide layers and form metal alloy ingots without obvious included slag. The multi-component rare earth raw material sampling method comprises determining sampling number according to a material detail form provided by a supplier and the number of one batch of fed materials, taking samples by a drill bit, weighing the samples according to the material detail form provided by the supplier, combining the samples to form an integrated sample, pre-treating the integrated sample and detecting ingredients of the multi-component rare earth alloy. The multi-component rare earth raw material sampling method has the advantages that the taken sample is representative, the detection result is real and reliable and production burdening is accurate.

Description

technical field [0001] The invention relates to a method for sampling multi-component rare earth raw materials, the rare earth raw materials include lanthanum-cerium alloys, battery grade mixed rare earths and multi-component rare earth alloys composed of two or more rare earth elements; the rare earth The raw material is cast metal, the surface is clean, there is no obvious oxide layer, and the metal alloy ingot has no obvious slag inclusion. The rare earth raw material is hydrogen storage alloy powder for nickel-hydrogen batteries. The hydrogen storage alloy is a material that can absorb and release hydrogen under certain conditions and has reversible hydrogen absorption and desorption properties. Background technique [0002] At present, the sampling method for multi-component rare earth raw materials is to take 4-7 samples for each incoming batch of rare earth raw materials, and when the weight of each batch is ≤500 Kg, take 4 samples. One sample is taken for every addi...

Claims

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Application Information

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IPC IPC(8): G01N1/08G01N21/73
Inventor 刘秋红皮雄郑波林昊谭虎奔
Owner JIANGXI RARE EARTH & RARE METALS TUNGSTEN GRP
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