First of all, we should check whether the quality and concentration of ferric chloride used in the experiment are correct, because low concentration or poor quality will affect the leaching effect. Secondly, leaching time is also an important factor affecting leaching rate. If the time is too short, the iron in the ore can not be completely dissolved, and the leaching rate will be affected. In addition, temperature is also one of the factors that affect the leaching rate. If the temperature is too low, the reaction speed of ferric chloride will be affected, which will lead to the decrease of leaching rate. Finally, pay attention to the speed and intensity of mixing. If the stirring is uneven or not strong enough, it will also affect the leaching effect.
To sum up, in order to improve the leaching rate of lead ore, it is necessary to comprehensively consider various factors and optimize the experimental conditions to ensure the accuracy and reliability of the experiment.