The 2025 Henan Provincial Industrial Design Competition recently concluded with remarkable achievements. Its theme is "Empowering Intelligent Manufacturing Through Design, Boosting High-Quality Henan Industry". Zhengzhou…
The groundbreaking ceremony for the headquarters base project of rare and precious metal materials and high-end equipment manufacturing of Zhengzhou Jinquan Mining and Metallurgical Equipment…
Zhengzhou Jinquan Wins First Prize at 2025 China Gold Association Science and Technology Achievement Award Zhengzhou Jinquan Mining & Metallurgical Equipment Co., Ltd. has…
Gold Extraction from E-Waste Using Aqua Regia Aqua regia stripping is a recycling method that dissolves the gold plating in e-waste…
Pyrometallurgy of lead anode mud The pyrometallurgical treatment of lead anode mud mainly recovers precious metals through reduction smelting, oxidation refining and electrolytic extraction. First,…
Gold-loaded carbon electrolysis process First, the gold-loaded carbon is pre-treated and screened to separate carbon powder and fine particles and enter the carbon storage tank.…
Refining silver from silver nitrate by electrolysis Electrolysis is a simple and environmentally friendly method that directly extracts high-purity silver through electrolysis. The specific operation…
Common carriers for supported palladium catalysts include alumina, cordierite (2MgO·Al2O3·SiO2), silica gel, activated carbon and zeolite. When selecting a process to recover palladium, the distribution…
Composition of sludge after lead electrolysis The anode mud produced from lead electrolysis contains various valuable metals, including precious metals (gold, silver), rare metals (selenium,…
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