Features

• Low loss and anti-interference:
• It uses an adaptive resonant full-bridge PWM control IC with zero voltage delay control. A high-efficiency resonant inductor ensures IGBT achieves ZVS in nearly all conditions. This reduces IGBT loss by 40% and improves EMC characteristics. It also minimizes interference to the power grid and the supply itself.
• Small size and high precision:
• High-frequency, low-saturation-voltage IGBTs enable third-gen switching power supplies to operate faster than second-gen versions. Higher frequency reduces magnetic material size. Low saturation voltage further decreases IGBT loss.
• Fast response:
• Stable width and hot backup technology eliminate reaction delay. Parallel units operate at identical frequency/phase. If a unit fails, remaining units stabilize total output current to settings within <30ms.

Description

Rare earth hydrometallurgy is a kind of chemical metallurgy. Most of the whole process is in solution and solvent. Rare earth processing uses chemical separation methods like precipitation, crystallization, redox reactions, solvent extraction, and ion exchange. Organic solvent extraction is now the dominant industrial method for isolating high-purity single rare earth elements. Hydrometallurgy process is complex, product purity is high, the method of production of finished products wide application.

Pyrometallurgical process is simple and has high productivity. In pyrometallurgy, rare earth alloys are produced through three main approaches: silicon thermal reduction, molten salt electrolysis (for metals/alloys), and metal thermal reduction. These methods avoid complex chemical separations by working with fused salts or high-temperature reactions. The common characteristic of pyrometallurgy is production under high temperature.

Industrial production of mixed rare earth metals employs molten salt electrolysis. The method heats/melts compounds (e.g., rare earth chlorides), then electrolyzes them to deposit metals on cathodes. Two approaches: chloride or oxide electrolysis. Methods for preparing single rare earth metals vary from element to element. Because of high vapor pressure, samarium, europium, ytterbium and thulium are not suitable for electrolysis, but reduction distillation is used. Other elements can be prepared by electrolysis or metal thermal reduction.

Parameters

Optional models

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