World oversupply of high-grade manganese ore continued through 1971, and more of the same is likely to be in store for 1972. U.S. imports increased from 1.7 million short tons in 1970 to approximately 2 million tons in 1971, but domestic consumption of ore was expected to be lower than the 2.364 million tons consumed in 1970. Manganese ore is mainly dependent on the steel industry for its markets. Its chief use is to counteract the undesirable effects of sulfur in the production of steel. Manganese ore, chiefly the dioxide, has important uses in manufacturing manganese chemicals, as an oxidizing agent, and as a depolarizing agent in dry-cell batteries. Other uses for manganese ore include the manufacture of synthetic manganese dioxide, ceramic colorants, and fertilizer additives. The price outlook, the industry in the United States, as well as foreign developments are delineated in the article.
Eng. and Min. J., V. 173, No. 3, March 1972, PP. 150-151