It studies Al2O3, MgO impacts on manganese silicon slag' s metallurgical physical and chemical performance, and put forwards the view choosing the slag type with two high elements Al2O3, MgO contents.

A research on the experiment of smelting slag constitution from gold-containing scrap;

Study on the slag constitution about the tin concentrate containing high W and AI reduced-smelting by EF

This paper simply describes the character of slag constitution in smelting ferrosilico-manganese and its controlling method.

The practice is introduced for increasing Mn and Si recovery by selecting rational electric parameters and type of slag in 12.

But it is important to pay attention to right operation and appropriate type of slag during the course.

was produced by proportioning fixed 75%ferrosilicon,choosing suitable type of slag and making appropriate adjustment in operation in its smelting process.

This paper presents the mechanism for accumulation iron at the bottom of electric zinc furnace,explores the influencing factors of accumulation iron,such as material composition,temperature,depth of electrode insert, slag pattern and reductant proportioning,propose effective measures of prevent from accumulation iron.