China Nonferrous Metallurgy

The ammonia alkali environment in the production process of using alkalinity reaction precursor is helpful to avoid the influence of formaldehyde and human measurement error on the reaction process. Through theoretical analysis and statistical analysis of the numerical relationship between the two, a target planning model based on calculation and actual measurement deviation is established and solved by MATALB. Finally, the change characteristics of precursor particle size and surface morphology in the actual production process are verified. The results show that the theoretical value of ammonium concentration is 8/7 times of alkalinity, and the proportional coefficient is linear The combined value and the average value are slightly larger than the theoretical value; with the increase of the designed ammonium concentration, the corresponding coefficient shows a downward trend, the greater the deviation between the calculated value and the measured value is; the deviation between the calculated value and the measured value is less than ±0.3, which can meet the production requirements, but the particle size fluctuation of alkalinity control is small, and the sphericity of the precursor is higher.