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Nickel is mainly used as an active component of catalysts in hydrogenation processes, such as hydrorefining of petroleum fractions, oil hydrogenation, etc. The nickel content in waste nickel catalysts produced during the hydrogenation process is 6% to 20%, which is…

The mixer settler is a traditional extraction equipment that appeared earlier. In the mixed separation operation, it mainly relies on gravity for natural separation. The centrifugal extractor is a new, environmentally friendly, green and efficient extraction equipment that has appeared…

The NMP waste solvents generated in the production process of the polyphenylene sulfide industry, aramid industry and lithium battery industry can all be recycled to improve economic benefits. Solvent extraction has become a recognized effective way to recycle NMP waste…

Solvent extraction is widely used in hydrometallurgy copper, but traditional copper smelting plant have serious problems of messiness and environmental pollution, which restrict the modern development of the smelting industry. In response to these problems, Zhengzhou Tiei Extraction Technology Co.,…

At present, the extraction method of amino acids is mainly conventional liquid-liquid extraction. Liquid-liquid extraction method is a separation method that adds a selected solvent that is immiscible (or slightly miscible) with the liquid mixture, and uses the different solubility…

As “white plastic” increasingly pollutes the environment, the implementation of the global plastic ban has not only become an official mandatory measure, but also a voice for consumers to pursue health. The promotion of biodegradable materials such as PLA, PBS,…