Process for the combined manufacture of steel and cement clinker
AssigneeCambridge Enterprise Limited
InventorsCyrille DUNANT, Julian M. ALLWOOD, Philippa HORTON
Life of this patent
Estimating the term…
Abstract
A process is disclosed for the combined manufacture of steel and cement clinker. Steel scrap is loaded in an electric arc furnace for forming molten steel. Cement paste derived from construction and demolition waste is loaded in the electric arc furnace to act as a flux for the steel to assist in the removal of impurities from the molten steel and forming an electric are furnace slag. The heat of the molten steel promotes clinkering of the electric are furnace slag to form clinkered electric arc furnace slag. The clinkered electric arc furnace slag is removed from the electric arc furnace.
Claims13
A process for the combined manufacture of steel and cement clinker, the process including the steps:
- providing an electric arc furnace;
- providing steel scrap;
- providing cement paste derived from construction and demolition waste;
- loading the steel scrap in the electric arc furnace for forming molten steel;
- loading the cement paste in the electric arc furnace to act as a flux for the steel to assist in the removal of impurities from the molten steel and forming an electric arc furnace slag, wherein the heat of the molten steel promotes clinkering of the electric arc furnace slag to form clinkered electric arc furnace slag;
- and
- removing the clinkered electric arc furnace slag from the electric arc furnace.
Cement clinker obtained as a product of a process of combined manufacture of steel and cement clinker, the process including the steps:
- providing an electric arc furnace;
- providing steel scrap;
- providing cement paste derived from construction and demolition waste;
- loading the steel scrap in an electric arc furnace for forming molten steel;
- loading the cement paste in the electric arc furnace to act as a flux for the steel to assist in the removal of impurities from the molten steel and forming an electric arc furnace slag, wherein the heat of the molten steel promotes clinkering of the electric arc furnace slag to form clinkered electric arc furnace slag;
- and
- removing the clinkered electric arc furnace slag from the electric arc furnace.
Dependencies are inferred from the claim text.