Desulfurizing agent and process for its manufacture
AssigneeHoechst Aktiengesellschaft
InventorsAlbert Braun, Willi Portz, Georg Strauss, Hans-Martin Delhey
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Abstract
The invention relates to agents for the desulfurization of metal melts, especially of steel and crude iron melts, based on mixtures of CaC.sub.2 /CaO crystals produced in the fused mass. A portion of the CaO in the crystal mixture is hydrated to form Ca(OH).sub.2. A process for the manufacture of these agents is also described.
Claims14
An agent for the desulfurization of steel and crude iron melts, said agent containing crystals crystallized out of a fused mass comprising CaO and CaC.sub.2 and comprising 40-80% by weight of CaO and 1-6% by weight of chemically combined water, which water has hydrated said CaO to form Ca(OH).sub.2.
An agent for the desulfurization of steel and crude iron melts comprising a CaC.sub.2 /CaO crystalline mixture crystallized out of a fused mass comprising CaO and CaC.sub.2, 40-80% by weight of said crystalline mixture comprising CaO and 1-6% by weight of said crystalline mixture comprising H.sub.2 O as chemically combined water which has hydrated said CaO to form Ca(OH).sub.2.
Dependencies are inferred from the claim text.