实验探究温度、pH值、晶种等因素对黄钾铁矾沉铁率的影响。结果显示，在反

The experiment explored the influence of temperature, pH value, seed crystal and other factors on the iron precipitation rate of jarosite. The results show that under the conditions of reaction temperature of 95 ℃, 10g / LFe, pH = 1.5 ~ 2.0, potassium carbonate dosage of 12.6g, and 8g / L seed crystals, the iron precipitation rate of yellow potash vanadium reaches 99.25%. By studying the reaction process and phase structure changes of the jarosite precipitation, analyzing and sorting out the previous research results, SEM was used to test the morphology of the jarosite crystals generated, and the morphological reasons under different conditions were analyzed. ; Use XRD to identify the precipitated product and analyze its reaction process. The results show that the formation of jarosite is carried out in two steps: the transformation from grass ferroalcohol to ferroalcohol. Increasing the temperature of the reaction is conducive to increasing the reaction rate and precipitation rate of the jarosite, and the generated crystal form is agglomerated, with higher crystallinity and better crystal form. The activation energy generated by the reaction of yellow potash is 16.69 KJ / mol.

Experiments explore the effects of temperature, pH, crystal and other factors on the iron-sinking rate of yellow potassium iron. The results showed that under the conditions of reaction temperature of 95 degrees C, 10g/LFe, pH of 1.5 to 2.0, potassium carbonate of 12.6g, 8g/L crystal, the iron sinking rate of yellow potassium iron was 99.25%. Based on the analysis and collation of the previous research results, SEM was used to test the resulting crystal form of jaundice, and the morphological causes of different conditions were analyzed, and XRD was used to identify the precipitation product sandand and analyze its reaction process. The results show that the generation of yellow potassium ferrite is carried out in two steps: from grass-yellow iron to yellow potassium iron. The temperature of the increased reaction is beneficial to the rate of reaction and precipitation rate of the yellow potassium ferrite, and the resulting crystal-type reunification is higher, and the crystal type is better. The activation generated by the yellow potassium ferrite reaction can be 16.69 KJ/mol.

The effects of temperature, pH value, crystal seed and other factors on the iron deposition rate of jarosite were investigated. The results showed that under the conditions of reaction temperature of 95 ℃, 10g / lfe, pH = 1.5 ~ 2.0, potassium carbonate dosage of 12.6g, 8g / L, the iron deposition rate of yellow potassium ferrovanadium reached 99.25%. By studying the reaction process and phase structure change of jarosite precipitation, analyzing and finishing the previous research results, SEM was used to test the crystal morphology of jarosite and analyze the reasons of morphology under different conditions; XRD was used to identify the precipitated products and analyze the reaction process. The results show that the formation of jarosite can be divided into two steps: from grass jarosite to jarosite. The higher the reaction temperature, the higher the reaction rate and precipitation rate of jarosite, the higher the crystallinity and the better the crystal form. The activation energy of jarosite is 16.69 kJ / mol.