oct 01, 2021 desulfurization mechanism of red mud-limestone process. the desulfurization agent used in this process is mainly composed of limestone and red mud. the desulfurization reaction is carried out in the contact process of the gas, liquid, and solid phase interface, and the reaction mechanism involved is more complicated.,grinding mill for limestone desulfurization in power plant,jun 30, 2020 the limestone powder produced by the grinding mill of sbm has been applicate in desulfurization of various power plants well, and customers have achieved good economic benefits. for different limestone flour, we can provide you with different solution and relevant grinding equipment. get price staff service.