This EPC project established a gold and silver refining plant for Sanmenxia Gold & Silver Refining Co., Ltd. Specifically, its scope covered the complete process from workshop design and equipment production to installation, commissioning, and staff training. The plant refines two primary…
This project launched in October 2019 to treat exhaust gases from the entire precious lead plant. It handles nitrogen oxides and acidic emissions from multiple processes. These include nitrate removal of gold mud impurities, aqua regia dissolution, sodium sulfite reduction,…
Jiujiang Platinum-Palladium Precious Metals Refining Project Project Overview This project officially launched in April 2021. Our team designed it specifically to treat exhaust gases that the silver and platinum-palladium refining processes generate in the smelter’s first workshop. These gases include…
Nitrogen Oxide Treatment Project for Hefei Thin Film Material Co., Ltd. This project began operating in May 2021. It treats high-concentration nitrogen oxide waste gas produced when nitric acid dissolves indium. Data from the client show that the indium dissolution…
Improving Silver Electrolysis Efficiency Through High Current Density To advance silver electrolysis technology, increasing current density is critical. However, this must not compromise silver quality (National Standard Grade 1) or equipment performance. Conventional electrolytic cells face challenges under high current…
To advance silver electrolysis, increasing current density is key—while ensuring high-quality cells (National Standard Grade 1 silver) and stable operation. However, traditional electrolytic cells face challenges. Their conventional electrolyte circulation limits performance at high current densities, causing severe concentration…
Zhengzhou Jinquan Mining and Metallurgy Equipment Co., Ltd. is a comprehensive enterprise. It specializes in precious metal recovery, refining, and purification. The company also provides technical services, equipment installation, and environmental solutions. It has a skilled technical team. The team…
Advanced Silver Electrolysis Equipment: Efficient, Clean, and User-Friendly Unlike traditional silver electrolysis systems that rely on upward ventilation—which typically require high airflow, high pressure, and excessive energy while occupying disorganized space—our innovative sealed downward ventilation system not only ensures zero gas leakage but also delivers energy-efficient operation, a…
Since the 1970s, automotive exhaust catalysts have driven massive demand for platinum group metals (PGMs). In 2008, this sector consumed 118.3 tons of platinum (Pt), 136.2 tons of palladium (Pd), and 23.6 tons of rhodium (Rh). These figures represented 63.7%, 60%, and 110% of that year’s…
High-Purity and Ultra-High-Purity Copper Explained High-purity copper contains at least 99.999% copper (5N purity), where "N" indicates purity level - more Ns mean higher purity. Current standards classify high-purity copper into four grades: HPCu-7N, HPCu-6N5, HPCu-6N, and HPCu-5N. The industry…
Effective Acid-Alkali Exhaust Treatment for Electronics Factories Electronics factories primarily use scrubber systems to treat acid and alkaline exhaust gases. The process follows a gas-liquid countercurrent principle: Exhaust Collection: Fan systems collect and channel exhaust gases into absorption scrubber towers. Gas-Liquid Reaction: Gases contact the absorbent…
Process Design for Recovering Palladium from Coal Chemical Waste Catalysts This paper outlines a palladium recovery process for waste catalysts in coal chemical industries. Key aspects include: Process Design Overview The method involves roasting, leaching, clarification, resin exchange, complexation, palladium…
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