The leaching process is controlled by mixed steps:the surface chemical reaction and the diffusion passing through the silicon and iron mineral phases.
浸出过程属于混合控制，即表面化学反应与通过不溶硅、铁矿物相的扩散为过程的控制步骤。
2
The electrochemical reaction is characteristic of a low current density controlled by the stage of reaction, or of a high current density controlled by the mixed process.