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Introduction of total rare earth in rare earth silicon

2019-05-14

Do you know the total amount of rare earth in rare earth silicon ? Let's take a look at the following small series!

Rare earth metal is an important material in industrial production. With the development of science and technology, the application of rare earth elements has been used in new technology materials for over 50 years in the industries of metallurgy, machinery, atomic energy, chemical industry, petroleum, electronics, etc. Rare earth elements such as luminescent materials, laser materials, novel glasses, and catalysts have all been used for important purposes.

The amount of RE contained in the rare earth ferrosilicon alloy is generally 21% to 42%. The rare earth element is a strong deoxidizing and desulfurizing degassing agent. RE is added as an alloying element to the molten steel, which can purify the molten steel, reduce non-metallic inclusions, and lower the steel. The viscosity and surface tension of the liquid, and can increase the fluidity of the molten steel, thereby improving the surface quality of the steel and improving the mechanical properties of the steel. The properties of the functional rare earth elements which have a good influence on the properties of the steel are very similar and are not easy to each other. Separation is generally added to the molten steel in the form of a mixture during steel making. Therefore, the general analysis is to determine the total amount of rare earth. The authors refer to the relevant literature 2-1, the sample is dissolved in nitric acid-hydrofluoric acid, and the perchloric acid is smoked to remove silicon and fluorine. In the presence of buffer ammonium chloride, after precipitation with ammonia water, the rare earth iron hydroxide precipitate is dissolved with dilute hydrochloric acid, REE is added with oxalic acid, thymol blue is used as an indicator, and pH=2.8 is adjusted with ammonia water to precipitate rare earth oxalate. Completely, filtered, burned into rare earth oxides, and then converted to the total amount of rare earths.

The above is the introduction of the total amount of rare earths in rare earth silicon shared by Baotou Fangyuan Rare Earth Alloy Co., Ltd. To learn more about rare earth silicon, please pay attention to our company! Sincerely at your service!

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