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Rare metal refining method for rare metal recycling in Tianjin

2021-12-20   Tianjin Yongming recycling materials Co., LTD

What rare metals do you know in your daily life?What refining methods do you know about these rare metals?下面Tianjin rare metal recyclingLet me introduce it to you。

The Earth's crust is not always low in rare metals。For example, the content of titanium, zirconium and vanadium in the crust is higher than that of ordinary non-ferrous metals such as nickel, copper, zinc, cobalt, lead and tin。Rare metals are sporadic, often associated with other metals, and some special physical and chemical properties often require special production processes。There are the following ways to refine rare metals after recovery:

1, organic solvent extraction method and ion exchange method: the method is suitable for the separation and extraction of lithium, rubidium, cesium, beryllium, zirconium, hafnium, tantalum, niobium, tungsten, molybdenum, gallium, indium, germanium, rhenium and lanthanide metals, actinide metals, etc。

2, metal thermal reduction method, molten salt electrolysis method: the method is suitable for the preparation of lithium, beryllium, titanium, zirconium, hafnium, vanadium, niobium, tantalum and rare earth metals;

3, chlorination metallurgy: This method is suitable for titanium, zirconium, hafnium, tantalum, niobium and rare earth metals extraction, separation or reduction。

4, iodide thermal decomposition method: This method is used to prepare high purity titanium, zirconium, hafnium, vanadium, uranium, thorium and so on。

Vacuum sintering, arc melting, electron beam melting, plasma melting and other metallurgical technologies have been widely used to refine rare metals, especially rare refractory metals。Zone melting technology has become an effective means to produce high purity bulk metals and rare refractory metals。

What are the varieties and categories of rare metal recycling?

1, tungsten (pure tungsten, tungsten steel, tungsten copper, tungsten iron, high specific gravity, twisted tungsten wire, tungsten powder, tungsten carbide powder, tungsten carbide abrasive, table fabric, tungsten slime and other tungsten containing waste)。

2, nickel (nickel plate, nickel paper, nickel powder, nickel iron, nickel chromium alloy, nickel tungsten alloy, nickel cobalt alloy)。