Industrial-grade manganese carbonate, production process of manganese carbonate, manganese carbonate manufacturers, carbonate

The method involves directly acidifying pyrolusite powder (i.e., the two-ore method). By calcining pyrolusite into manganese oxide before acidification, the calcination process is eliminated, significantly reducing equipment investment, environmental pollution, and costs. The product is a rose-colored trigonal crystal system rhombohedral or amorphous bright white-brown powder. It has a specific gravity of 3.125, is almost insoluble in water, but slightly soluble in water containing CO2. It dissolves in dilute inorganic acids, is slightly soluble in common organic acid salts, and is insoluble in liquid ammonia. It is stable in dry air but oxidizes easily in humid conditions, forming manganese trioxide and gradually turning black. When heated, it decomposes and releases CO2, and it hydrolyzes when boiled with water. In boiling potassium hydroxide, it forms manganese hydroxide. It is widely used in telecommunications equipment as a raw material for ferrites, as a catalyst for desulfurization, in enamel pigments, as a drier for varnishes, and as a raw material for manufacturing manganese salts and catalysts. Manganese carbonate is also used in fertilizers, pharmaceuticals, mechanical parts, and phosphating treatments. In agriculture, manganese carbonate is used as a trace element fertilizer, and its content can be slightly lower.