Converter and method for top blowing nonferrous metal

Details Converter and method for top blowing nonferrous metal Converter and method for top blowing nonferrous metal

C - Chemistry, Metallurgy

22

B

C22B 9/05 (2006.01) C21C 5/35 (2006.01) C21C 5/42 (2006.01) C21C 5/48 (2006.01) F27B 17/00 (2006.01)

Patent

CA 2041297

The invention provides a converter for purifying molten nonferrous material. A converter body having a refractory lined chamber holds the nonferrous material. A gas injector means pierces a lower portion of the chamber for bottom sparging the nonferrous material. A lance pierces an upper portion of the converter body projecting minimally into the chamber for limited exposure to adverse conditions. While converting with top blowing of gas containing oxygen and bottom stirring solid nonferrous metal may be added to the converter to cool the molten nonferrous material and purified molten nonferrous metal.

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