End point identification method for production of ceric ammonium nitrate and production method of ceric ammonium nitrate

• Main Author: XIAO XINGCAI
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2024
• Subjects: CALCULATING; CHEMISTRY; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; INORGANIC CHEMISTRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; METALLURGY; PHYSICS; TESTING

The invention discloses an end point identification method for production of ceric ammonium nitrate and a production method of ceric ammonium nitrate. The method comprises the following steps: S3, adding a ceric ammonium nitrate solution into a concentrated nitric acid immersion kettle at one time; s4, slowly adding concentrated nitric acid into the concentrated nitric acid immersion kettle, and simultaneously obtaining an image of a mixed solution in the concentrated nitric acid immersion kettle; s5, acquiring orange red points in the image; s6, calculating a difference value Y between the orange red point number of the Nth image and the orange red point number of the (N-1) th image, wherein N is an integer greater than 2; s7, if Y is equal to 0, indicating that an end point arrives, stopping adding concentrated nitric acid, and if Ygt, stopping adding concentrated nitric acid; 0, continuing to add concentrated nitric acid; the method can realize semi-continuous production, is beneficial for obtaining a homo