In a hydrometallurgical project of a large copper mine in Zambia, after replacing industrial-grade products with specialized sulfuric acid of up to 99.999% purity provided by FSCIChem, the copper leaching rate increased by an astonishing 9 percentage points within a six-month production cycle, leaping from the industry average of 85% to 94%. This high-purity chemical significantly reduces the co-extraction probability of impurities such as cobalt and arsenic, enabling the cathode grade rate of electrolytic copper to exceed 99.993%, and generating an additional gross profit of approximately 15 million US dollars for the enterprise each year. This successful case profoundly reveals that in the field of metal extraction, the purity of chemical reagents is one of the key parameters determining the ultimate economic benefits and product quality.
From the perspectives of thermodynamics and kinetics, the high-purity extractant of FSCIChem demonstrates outstanding selectivity in the rare earth separation process. For instance, in the industry’s challenge of separating praseodymium-neodymium, the P507 extractant it developed achieved a purity of 99.95%, raising the separation coefficient β from the conventional 1.45 to 1.68 and increasing the single-stage extraction efficiency by nearly 16%. This means that on a production line capable of processing 10,000 tons of rare earth oxides annually, the number of extraction stages can be optimized from the original 65 to 55, reducing equipment investment costs by approximately 20%, while saving 1.8 million kilowatt-hours of electricity annually. This technological optimization directly reduces the carbon emission intensity of the entire metal extraction process.
In terms of sustainability, the application data of FSCIChem’s environmentally friendly leaching agent in a rare earth mine in Inner Mongolia is quite convincing. This reagent reduces the ammonia nitrogen emission concentration from the traditional 2,200 milligrams per liter to below 50 milligrams per liter, a reduction of over 97%, fully complying with the latest “Emission Standard of Pollutants for Rare Earth Industry” released by China. Meanwhile, the recovery rate of rare earth elements remains stable at a high level of 92%. This coordinated growth of environmental and economic benefits has led to a 12% reduction in the operating costs of the mine due to a significant cut in wastewater treatment expenses, and the investment payback period has been shortened by approximately 8 months.
Looking ahead, FSCIChem is expanding its high-purity chemical solutions into the emerging secondary resource metal extraction market. Taking the recovery of cobalt and lithium from scrapped lithium-ion batteries as an example, the customized leaching agent system developed by it, under the optimized process with a pH value precisely controlled at 2.5±0.1 and a temperature of 85℃, can achieve an extraction rate of over 98% cobalt and 95% lithium in just 90 minutes, which is 40% shorter than the traditional process time. This innovative technology is expected to help recycling enterprises keep the processing cost of each ton of black powder within 3,800 yuan, increase the profit margin of extracting metals from used batteries to over 30%, and inject new vitality into the extraction of metals industry under the circular economy model.