The product generated by ultrasonic cleaning machine is solid and attached to the unreacted core, and its general formula can be expressed as A B (q) - P. For example, the acid decomposition reaction of scheelite: and only one component is selectively dissolved in the solid reactant, such as the acid leaching reaction of ilmenite: the solid reactant is dispersed and embedded in the unreacted gangue matrix, such as the leaching of block ore. Generally speaking, the matrix of gangue has pores and the application of ultrasound during the leaching process. In practice, Orlov conducted a comparative study of mechanical mixing with and without ultrasound for sulfuric acid leaching of copper oxide. The results showed that when the same leaching rate was achieved, the leaching time without ultrasound was about 12 times that of leaching with ultrasound. There are also relevant experiments in China, and the experimental parameters are shown in Table 2. The experiment was conducted in a cylindrical glass container with a volume of 100ml, and the mixing impeller radius was 25mm. During the experiment, the mixing speed was kept constant at 200r/min. The experimental results are shown in sections 2 and 3. The results indicate that when ultrasound is used, the same copper leaching rate takes 1/6 of the time when it is not used (reduced from 120min to 20min); It indicates that for raw materials with a leaching particle size of 75-53Mm, compared with mechanical mixing, the use of ultrasound not only results in a higher copper leaching rate, but also a shorter leaching time; It can be clearly seen that the ammonia concentration is 2moVL, the solid/liquid ratio is V100, the temperature is 290, and the cracks may occur simultaneously on the surface and inside of the ore block due to internal and external diffusion. For example, chemical reaction kinetics has shown that the apparent rate of consecutive reactions is determined by the process with the smallest constant reaction rate, which is the most difficult process to carry out and also the rate determining process of the entire consecutive reaction.

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