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At present, the commonly used methods for treating zinc-containing pickling waste generated in the hot-dip galvanizing industry include neutralization and precipitation, acid distillation method, flotation method, ferrite method, ion exchange method, microbial method, membrane separation method, electrodeionization technology, etc. Considering…

Nickel and cobalt are widely used in the electronic field. With the development of industry, the market prospects of nickel and cobalt are huge. Because the physical and chemical properties of nickel and cobalt are very similar, it is difficult…

N,N-dimethylacetamide (DMAC) is widely used as chemical raw materials and organic solvents in petroleum, chemical, pharmaceutical, pesticide and other industries. It has strong polarity, chemical stability and biological toxicity. Dimethylacetamide (DMAC) is an important pharmaceutical raw material and is widely…

In the fine chemical synthesis process, the extraction and washing (including water washing and alkali washing) processes are essential links. Their main purpose is to remove solvents and by-product salts from the reaction solution. However, at present, these two processes…

In recent years, Zhengzhou TIEI Extraction has launched the high-efficiency lithium precipitation mother liquor extraction system, which has the characteristics of high lithium extraction yield, green and pollution-free, simple process, less equipment, less land occupation, fast construction, low investment, low…

In fine chemical production, it is sometimes necessary to remove DMF from dichloromethane aqueous feed (loaded product). This production section is called the stripping section and requires the use of stripping equipment. The stripping equipment is functionally the same as…