18-08-2023 дата публикации
Номер: CN116606681A
Принадлежит:
The invention relates to the technical field of phosphorus-containing anti-wear reagents at extreme pressure, in particular to a synthesis method of a phosphorus-containing anti-wear reagent at extreme pressure, which comprises the following steps: step S101, dropwise adding excessive alcohol into a phosphorus pentasulfide solution, heating and then carrying out sulfur-phosphating reaction; step S102, cooling, adding a catalyst, and then slowly dropwise adding epoxypropane; s103, raising the temperature, and adding phosphorus pentoxide at a constant speed for re-esterification; and S104, heating, adding primary amine, and carrying out amination reaction to obtain the phosphorus-containing anti-wear reagent at extreme pressure. The preparation method has the beneficial effects that the phosphorus-containing extreme pressure anti-wear agent is produced and manufactured through the steps S101 to S104, and the proportion of a main reaction is increased and the proportion of a side reaction ...
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