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Determination method for rare earth oxide in rare earth concentrate

A rare earth oxide and rare earth concentrate technology, applied in the field of metallurgical analysis, can solve the problems of X-ray fluorescence spectrometry interference, high detection cost, poor correction effect, etc., and achieve the effect of saving medicine, short operation process and reducing detection cost

Inactive Publication Date: 2016-08-31
INNER MONGOLIA BAOTOU STEEL UNION
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Problems solved by technology

X-ray fluorescence spectrometry has serious matrix interference, and the general matrix correction method has poor correction effect or cumbersome procedures. Inductively coupled plasma method needs to use platinum crucible for melting, needs to control the amount of salt, and needs to match the matrix. At the same time, the above method requires the operator It has high operation ability, takes a long time, and needs to be equipped with large-scale equipment at the same time, and the detection cost is high

Method used

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  • Determination method for rare earth oxide in rare earth concentrate
  • Determination method for rare earth oxide in rare earth concentrate

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Embodiment Construction

[0030] The specific embodiment of the present invention is described below in conjunction with accompanying drawing:

[0031] The method steps of this specific embodiment are as figure 1 As shown, select three kinds of samples, namely rare earth tailings, marked as 01, rare earth raw ore, marked as 05, and rare earth concentrate marked as 07, and each sample was carried out in 4 groups of comparative experiments according to the following methods, specifically The method is:

[0032] Weigh 0.5000 g of the sample and place it in a corundum crucible filled with 1-2 grams of sodium hydroxide to remove water, add 2-3 grams of sodium peroxide, mix well, and cover the surface with a layer of sodium peroxide. Melt in a muffle furnace at 700°C for 10 minutes, take out the crucible from the muffle furnace, and cool it down. After cooling, put it into a 400mL beaker filled with 150mL triethanolamine (1+10) and boil for leaching, wash the crucible with water, heat and boil the solution...

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Abstract

Belonging to the technical field of metallurgical analysis method, the invention discloses a determination method for rare earth oxide in rare earth concentrate. The invention aims to provide a rapid, efficient and low-cost determination method for rare earth oxide in rare earth concentrate. The method comprises the steps of: 1. sample preparation; 2. first precipitation; 3. second precipitation; 4. third precipitation; and 5. determination result calculation. The method is easy to grasp and has high result accuracy, can be popularized and applied in production, and is suitable for rapid determination of the content of rare earth oxide in various rare earth concentrates.

Description

technical field [0001] The invention specifically relates to a method for measuring rare earth oxides in rare earth concentrates, and belongs to the technical field of metallurgical analysis methods. Background technique [0002] Rare earth is known as the "gold" of industry. Because of its excellent optical, electromagnetic and other physical properties, it can be combined with other materials to form a variety of new materials with different properties. Its most notable function is to greatly improve the quality and performance of other products. For example, the tactical performance of steel, aluminum alloy, magnesium alloy, and titanium alloy used to manufacture tanks, aircraft, and missiles has been greatly improved. Moreover, rare earths are also lubricants for many high-tech industries such as electronics, lasers, nuclear industry, and superconductivity. Once rare earth technology is used in the military, it will inevitably bring about a leap in military technology...

Claims

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Application Information

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IPC IPC(8): G01N5/04G01N1/28G01N1/44
CPCG01N5/04G01N1/28G01N1/44
Inventor 李虹刘建华周春玲陈英
Owner INNER MONGOLIA BAOTOU STEEL UNION
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