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利用络合反应原理，在润滑油糠醛精制过程中，加入少量的过渡金属离子作为络合剂，可以有效地脱除润滑油原料中的碱性氮化物。考察了络合剂的加入量与脱碱氮率的关系。络合剂加入量在０ ．６ ％ ～０．８ ％ 时，即可脱除润滑油原料中８０％ ～９０ ％ 的碱性氮化物
Using the complexation reaction principle, a small amount of transition metal ions can be added as a complexing agent during the process of furfural refining of lube oil to effectively remove basic nitrides from lubricating oil raw materials. The relationship between the amount of complexing agent and the rate of nitrogen removal was investigated. Complexing agent added in 0. 6% ~ 0.8%, you can remove the lubricating oil raw materials 80% to 90% of the basic nitride