Method for preparing 3-amino-4-amidoxime furazan by using micro-flow field reaction technology

The invention discloses a method for preparing 3-amino-4-amidoxime furazan by using a micro-flow field reaction technology. The method comprises the following steps: (1) respectively pumping a malononitrile solution and a sodium nitrite aqueous solution into a first micro-mixer in a micro-flow field reaction device at the same time, mixing, and introducing into a first module to carry out a firstreaction; (2) while the step (1) is carried out, respectively and simultaneously pumping the hydroxylamine hydrochloride aqueous solution and the effluent of the first module into a second micro-mixerin the micro-flow field reaction device for mixing; and (3) while the step (2) is carried out, respectively pumping the sodium hydroxide aqueous solution and the effluent of the second micro-mixer into a third micro-mixer in the micro-flow field reaction device at the same time, mixing, and introducing into a second module to carry out a second reaction, thereby obtaining the reaction liquid containing the 3-amino-4-amido