1 results about "Propanamide" patented technology

The invention discloses an extraction composition, an extraction system and application of the extraction composition. The extraction composition includes an extraction agent and a neutral phosphorusoxygen compound shown in the formula A. The extraction agent includes N,N-dihexyl propanamide but does not include N,N-di(2-ethylhexyl)acetamide. A mixture of an amide compound of a specific structureand the neutral phosphorus oxygen compound is selected as the extraction composition, and the extraction rate of Li of lithium containing brine can reach up to 91.03%; the lithium-magnesium distribution coefficient can reach up to 757.29; and when HCl is used for lithium reextraction, the reextraction rate is 84% or above, the extraction and reextraction performance of extracting lithium salt from the lithium containing brine is greatly improved, cost is reduced, and the extraction composite is more suitable for industrial production (Please see the formula in the specification).