Extraction kettle for refining 4-chloro-3 ', 4'-dimethoxybenzophenone

The utility model relates to the technical field of extraction kettles, in particular to an extraction kettle for refining 4-chloro-3 ', 4'-dimethoxybenzophenone. According to the technical scheme, the cooling device comprises a base, a cooling groove, a first gear motor, a bearing seat and a shell are sequentially installed on the upper surface of the base from left to right, a top cover is installed at the top end of the shell, a first annular sealing block and a hollow annular connecting block are installed on the lower surface of the top cover, and the hollow annular connecting block is located on the inner side of the first annular sealing block; a kettle body is installed on the inner side of the first annular sealing block, electric heating coils are installed on the inner walls of the two sides of the shell, and a temperature detection sensor is arranged on one side of the lower surface of the top cover. According to the reaction kettle disclosed by the utility model, a worker can conveniently and qui