Reinforced electrolytic manganese residue sintered brick and preparation method thereof

• Main Authors: JI YUNBO, ZHOU YOULIAN, HUANG LEIMING
• Format: Patent
• Language: Chinese; English
• Published: 23.09.2022
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention relates to the technical field of environmental protection, in particular to a reinforced electrolytic manganese residue sintered brick and a preparation method thereof. The preparation method comprises the following steps: preparing a dry blank by taking electrolytic manganese residues, shale, fly ash and an additive as raw materials, and preheating and roasting the dry blank to prepare the electrolytic manganese residue sintered brick, the additive contains Ca element. The added additive contains Ca element which can be converted into CaO in the sintering process, so that the CaO and other minerals form a sintering liquid phase, the sintering temperature is reduced, the strength of the sintered brick is improved, and the consumption amount of the electrolytic manganese residues is remarkably increased. By means of the method, the electrolytic manganese residues can be fully recycled, and the doping amount of the electrolytic manganese residues reaches up to 70%. Meanwhile, the sintered brick p