Continuous determination method for rare earth oxide, calcium oxide and magnesium oxide in rare earth ore concentrate

Abstract

The invention discloses a continuous determination method for rare earth oxide, calcium oxide and magnesium oxide in rare earth ore concentrate, and belongs to the technical field of metallurgical analysis methods.The continuous determination method for rare earth oxide, calcium oxide and magnesium oxide in rare earth ore concentrate is short in analysis time, accurate in determination and low in detection cost.The method comprises the first step of sample preparation, the second step of primary sedimentation, the third step of secondary sedimentation, the fourth step of determination preparation, the fifth step of determination of the content of calcium oxide, the sixth step of determination of the total content of calcium oxide and magnesium oxide, the seventh step of determination of the content of rare earth oxide, and the eighth step of calculation of the content of rare earth oxide, calcium oxide and magnesium oxide.The method is easy to master, high in result accuracy and capable of being applied and popularized in production.Adopted equipment is simple, has the advantage of being accurate and is applicable to continuous and rapid determination of rare earth oxide, calcium oxide and magnesium oxide in rare earth ore concentrate.

Description

technical field [0001] The invention specifically relates to a method for continuously measuring rare earth oxides, calcium oxide and magnesium 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 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 inev...

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Problems solved by technology

[0003] The method of determining rare earth oxides, calcium oxide, and magnesium oxide in rare earth concentrates usually uses the inductively coupled plasma method, which needs to be melted in a platinum crucible, needs to control the amount of salt, and needs to match the matrix. At the same time, it needs to be equipped with large-scale equipment, and the measurement cost is high

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