Development Trend of ferroalloy production technology: ferroalloy products structural changes occur, varieties for diversity. Overall trends can be described as: increasing the variety Tianjin iron slag agent, make full use of alloying elements; rational use of resources Jilin iron slag agents, product development direction to the composite; reduce harmful impurities in the alloy composition Hubei ironmaking slag agents, to Pure-oriented development; shorten the process, reduce energy consumption, improve production efficiency, and reduce production consumption and costs. Ferroalloys purposes: as a reducing agent. Silicon alloys are used as the reductant production of molybdenum iron, vanadium iron and other iron alloy; and silicon-chromium alloys, silicon manganese alloys are used as a reducing agent in the production of low-carbon ferromanganese. Other aspects of the use. In non-ferrous metallurgy and chemical industry, iron alloy is also becoming more widely used.