Production process of guanidine nitrate
The invention discloses a production process of guanidine nitrate. Ammonium nitrate and dicyandiamide serving as raw materials are reacted to make guanidine nitrate. The production process is characterized in that a batch feeding mode is adopted, ammonium nitrate and dicyandiamide are mixed and then added into a reaction kettle in batches, the feeding times is 5-10, and the feeding reaction temperature is controlled to be 130-140 DEG C; when feeding of one batch of raw materials is finished and a reaction mixture is in a molten state and the reaction temperature is 130-140 DEG C, a next batch of raw materials are added until feeding of the reaction raw materials is finished; after feeding is finished, thermal insulation reactions are continued to be performed for 30-60min at 145-155 DEG C until an addition reaction is over, then the temperature is continued to be warmed to 210-220 DEG C within 20-30min, and guanidine nitrate products are obtained when a cracking reaction is over after reaction for 30min. The production process has the advantages that by batch feeding and by controlling corresponding feeding temperature and feeding amount well, the aim of improving the yield coefficient of guanidine nitrate is achieved, the content of the produced guanidine nitrate is larger than 92%, and the mol yield coefficient is larger than 96%. 1. Production process of a guanidine nitrate, to ammonium nitrate and dicy as a raw material for reaction guanidine nitrate, characterized in that the fed-batch mode, the ammonium nitrate and dicy two raw materials of the reaction, the batch is added after mixing, charging times as 5-10 time, control the feed reaction temperature, in the 130-140 [...] , for to be a raw material, the reaction mixture is in the molten state and the reaction temperature in the 130-140 the [...] , then add the next raw material, the raw material is omitted until the reaction, the continued after throws the material 145-155 the reaction heat insulation [...] 30-60 minutes, reaction is ended, finally, in 20-30 minutes to the temperature in the the 210-220 [...] , reaction 30 minutes, cracking reaction is ended, the guanidine nitrate product. 2. A guanidine nitrate production process according to Claim 1, characterized in that the stated dicy and ammonium nitrate in a molar ratio of 1 : 2.1-2.2.