We specialize in precious metals recovery, refining, and purification.
Cases
The company is located in Zhengzhou City, Henan Province. It is a high-tech enterprise specializing in rare and precious metal refining and purification technology services and equipment manufacturing.
It also overcomes the technical challenge of the highly unstable purity of 99.999% high-purity gold produced by traditional chemical methods.
After nearly half a year of hard work, our company successfully completed the construction and installation of the precious metal catalyst recovery and refining project; the installation, fastening and inspection of the cable tray cover equipment in the smelting enrichment-hydrochloric acid iron removal-extraction separation-classical refining process area were carried out in an orderly manner.
The main raw materials for this project are waste catalysts containing platinum, palladium, rhodium, gold, iridium, and ruthenium. A roasting pretreatment + hydrometallurgical process is used to recover palladium, platinum, rhodium, gold, iridium, and ruthenium trichloride.
Our client signed a contract for palladium refining and waste gas treatment. Each batch can refine 10-15 kg of palladium. Glass reaction vessels and storage tanks are used, ensuring the entire reaction process is transparent, easy to clean, and free from pressure buildup.
A certain company is a technology-based enterprise specializing in the research and development and production of precious metal catalysts. Relying on the strong R&D capabilities and state-of-the-art research instruments of Zhejiang University of Technology, the company utilizes unique solvent-free catalysts, allowing for multiple recycling of its products.
Accordingly, the Malian government will integrate domestic gold resources and establish a new state-owned Mali Gold Refining Company for gold refining and purification, with corresponding policy incentives. Domestic gold mine resources in Mali will also be prioritized for allocation to the Mali Gold Refining Company.
This project is an EPC (Engineering, Procurement, and Construction) project for gold and silver refining, encompassing workshop design, equipment production, installation, commissioning, and process training. The raw materials are refined gold and crude silver.
It includes nitrogen oxide and acidic waste gases generated from processes such as gold mud nitric acid removal, aqua regia dissolution, sodium sulfite reduction, gold electrolysis, silver nitric acid dissolution, and silver electrolysis. It is particularly effective for high-concentration nitrogen oxides generated during the gold mud nitric acid removal, aqua regia dissolution, and silver nitric acid dissolution processes.
This project officially commenced operation in April 2021, treating tail gases from silver refining and platinum-palladium refining in Workshop 1 of the smelter. These include high-concentration nitrogen oxides from silver dissolution with nitric acid and alkaline waste gas from the platinum-palladium complexation reactor.