Suddeutsche Kalkstickstoff-werke Aktiengesellschaft

Erich Pfluger

Alfred Freissmuth

Walter Meichsner

Heinrich Rock

Heinrich Rellermeyer

Wolfgang Ullrich

Horst Prietzel

Raymund Sindermann

Walter Heinl

Herbert Knahl

Molten metals, especially molten pig iron, are desulfurized by contacting them with a composition comprising calcium carbide or calcium cyanamide and an additive agent yielding water or hydrogen at the temperature of the molten metal; preferred as the additive agents are the alkali metal hydrides, polyethylene or polyamide for yielding hydrogen and hydrate of lime and alkaline earth borates for yielding water.

Method and composition for the desulfurization of molten metals

Iron melts, particularly iron melts made by the torpedo ladle method, can be efficiently desulfurized by adding thereto a mixture of calcium carbide and diamide lime wherein the content of diamide lime is from 40 to 70% by weight of the desulfurizing composition.

Composition for desulfurizing iron melts

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Trostberg, Germany

Erich Pfluger