In the raw material preparation stage, basic organic components meeting purity requirements are prioritized and precisely weighed according to the formulation ratio; preliminary impurity removal is performed beforehand to prevent the introduction of interfering impurities during subsequent steps.
During the synthesis reaction stage, the pre-treated raw materials are charged into a sealed reactor; reaction temperature, pressure, and agitation speed are strictly controlled while maintaining a constant inert gas atmosphere; heating is ceased and the mixture is allowed to settle once the reaction conversion rate reaches the preset standard.
In the separation and purification stage, low-boiling-point by-products generated during the reaction are first removed via a distillation unit, followed by a multi-stage rectification process to further enhance the purity of the main product by eliminating residual heavy components and unreacted raw materials.
In the quality verification stage, key parameters of the finished product-such as extraction selectivity, solubility, and flash point-are tested individually; once all specifications are met, the product undergoes filtration to remove impurities, yielding the final, qualified extractant product.