| 摘要 |
Disclosed are a device and a method for continuously preparing a high-purity AKD without solvent. The device comprises a reactor for mixing and reacting raw materials continuously. The method comprises the following process steps: firstly, continuously adding tertiary amine at the initial end of a reactor, and continuously adding acyl chloride by dividing same into three to ten streams; and secondly, under a working state of the reactor, driving an inner barrel (1) to rotate relative to an outer barrel (2) by a motor (3), thus forcing the added materials to be transported and stirred by blades (6) in a transportation section (5) of an annular cylindrical channel (4), and sufficiently sheared and mixed by the relative movement of a shearing sheet (8) and a kneading sheet (9) in a mixing section (7); by combing the alternate distribution of the transportation sections (5) and the mixing sections (7) in the axial direction of the annular cylindrical channel (4), the added materials being sufficiently reacted; and then controlling the temperature of the materials by an inside-outside heat exchange system until the products are continuously discharged from a discharge port (16). |
