Copper refining refers to the process of purifying crude copper (copper with high impurities) through physical or chemical methods to obtain high-purity copper. Coarse copper is usually extracted from copper ore by pyrometallurgy and contains various impurities such as gold, silver, iron, nickel, sulfur, etc.

The new structure rectifier cabinet is designed for high-current applications in metal refining and electrolytic industries. It combines the advantages of non-co-phase inverse parallel design with advanced technical improvements, ensuring higher safety, lower failure rates, and easier maintenance compared with traditional rectifier structures. This makes it highly reliable for continuous operation in copper refining rectifier systems and other non-ferrous metal projects.

With positive and negative rectifier groups fully isolated into independent units, the cabinet eliminates the risk of arcing and provides stable current for demanding metal refining processes. The reduction of rectifier arms from 12 to 6, along with balanced current distribution and improved magnetic isolation, ensures long service life and reliable performance. These features directly support the efficiency and safety of copper refining rectifier applications.

Product Applications

Metal refining rectifiers are widely used in electroplating, electrolysis, oxidation, electrophoresis, smelting, and non-ferrous metal refining, including aluminum, magnesium, lead, zinc, copper, and nickel. It offers proven copper refining rectifier solutions, while also supporting caustic soda electrolysis, potassium chlorate production, high-current heating, graphitization furnaces, melting furnaces, and electrolytic hydrogen generation.

Field application diagram

Technology Advantages

› Dual-channel hot spare, scramble-free switching

› High-precision steady current control

› Critical loop redundancy design

› High reliability and stability

› User-friendly operation and easy maintenance

› Soft start and soft shutdown protection

› Automatic fault self-diagnosis

› Disturbance-free on/off loop switching

The Purpose of Electrolytic Refining

The main purpose of copper refining is to remove these impurities, improve the purity and performance of copper, and make it suitable for industrial applications.

1) Reducing impurity content in copper:​ Electrolytic refining reduces impurities in copper, thereby improving its performance to meet the requirements of various applications.

2) Recycling valuable metals:​ The process also recovers valuable metals, particularly precious and rare metals.

The Role of Rectifiers in Copper Refining

Making high-purity copper from raw ore requires precise electrical control. That’s where rectifiers come in – these power converters are the silent workhorses powering modern copper refineries.

Here’s how they fit into the process:
First, smelters process raw ore into crude copper. Then converters remove more impurities. But the real transformation happens in electrolytic tanks, where:
• Impure copper anodes (about 99% pure) are suspended in acid baths
• Pure copper gradually builds up on starter cathodes
• This entire electrochemical process depends on direct current

Cooling Type for Copper refining

Air Cooling:Heat dissipation fan + air duct + comb heat sink

Water Cooling：Built-in water circulation line

Technical Parameters

Solution

Liyuan will keep up with the world’s latest technology closely, and uphold the concept of providing customers with high-quality power supplies and professional integrated services.

With advanced design and rich experience in rectifier manufacturing, we will provide the best power solutions as well as the most stable and efficient power supply for users both at home and abroad.

Technical Capability

LIYUAN rectifier is the most competitive brand in China

Company relies on strong technology research and development cooperation basis, created a number of advanced technology, in recent 3 years amounted to more than 30 to apply for a patent, which has nearly 10 patents of invention.

Equipped with the national electric power transformation and control engineering technology research center (branch), and has set up a loan enterprise academician workstation.

Strict implementation of ISO quality management system, and through the CE safety certification, has been implementing ERP management for many years, to achieve the network, systematic computer control, the formation of a standard, efficient modern management system.

Qualification certification

Liyuan adhere to innovation and the continuous improvement of power conversion efficiency and product quality.

The increasing R&D investment every year, and cooperation with China’s well-known universities, we has established the research center of national electric power conversion and control engineering technology.

Especially the related core patents of high-power synchronous rectifier power supply, stay ahead of the whole industry in China.

The ISO 9001 quality management system has been fully implemented in Liyuan, including quality inspection of components in warehouse, production process inspection, and final product inspection.

We adopt advanced scientific quality management system and the most stringent testing methods in the whole process to ensure the stability and reliability of products.

Service

› Packing

1.Small size rectifier packing in carton box separately.

2.Large size rectifier will be packed in wooden case.

3.We guarantee that all the packing is intact when it reaches its destination.

› Shipping

1.30-45 Days after payment.

2.Transport: DHL, FEDEX, UPS, Air shipping, Boat shipping

3.You may choose our shipping partner or your own partner.

› Maintenance

We are pleasant to share our theory and experience on equipment maintenance with users.

We are pleasant to interact with users to collect their tips and know-hows on equipment maintenance.

The module “Maintenance” here is intended to help users solve various problems they possibly encounter during equipment maintenance…

If you require copper refining rectifiers in other specifications, we can customize them to meet your exact requirements. Please feel free to contact us for more details.

Are you looking for a 10KA 140V copper refining rectifier for metal refining? Liyuan Haina Group is one of the professional manufacturers and suppliers in this field. With over 27 years of focus on R&D, design, production, sales, and technical services for industrial rectifiers, we have already exported our products to the United States, Canada, Britain, Portugal, Italy, Spain, South Africa, Russia, the UAE, Japan, South Korea, Malaysia, and other parts of the world. Equipped with a productive factory, we warmly welcome you to purchase our high-quality, Made-in-China products at competitive prices or try our customized service.
 

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