A method for continuous determination of rare earth oxide, calcium oxide, magnesium oxide and barium oxide in rare earth concentrate

Abstract

The invention discloses a method for continuously measuring rare earth oxide, calcium oxide, magnesium oxide and barium oxide in a rare earth ore concentrate, and belongs to the technical field of metallurgical analysis methods. The invention aims at providing a method for continuously measuring rare earth oxide, calcium oxide, magnesium oxide and barium oxide in the rare earth ore concentrate with short analysis time, accurate measurement result, and low detection cost. The method disclosed by the invention comprises the following steps: 1, preparing a sample; 2, implementing primary sedimentation; 3, implementing secondary sedimentation; 4, preparing measurement; 5, measuring the content of calcium oxide; 6, measuring the total content of calcium oxide and magnesium oxide; 7, measuring the content of rare earth oxide; 8, measuring the content of barium oxide; 9, calculating the contents of rare earth oxide, calcium oxide, magnesium oxide and barium oxide. The method is easy to master, is high in result accuracy, and can be popularized in and applied to production. The method is suitable for rapid continuous measurement of rare earth oxide, calcium oxide, magnesium oxide and barium oxide in the rare earth ore concentrate.

Description

technical field [0001] The invention specifically relates to a method for continuously measuring rare earth oxides, calcium oxide, magnesium oxide and barium oxide 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 the industry because it has excellent optical, electromagnetic and other physical properties and 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 militar...

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Problems solved by technology

[0003] The methods for determining rare earth oxides, calcium oxide, magnesium oxide, and barium oxide in rare earth concentrates usually use the inductively coupled plasma method, which needs to be melted in a platinum crucible, the amount of salt needs to be controlled, and the matrix needs to be matched. High operating experience, at the same time need to be equipped with large equipment, high cost of determination

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