Method of simultaneous production of low-silicon iron and high-alumina slag

Claim 1

A METHOD OF SIMULTANDOUS PRODUCTIN OF LOW-SILICON CAST IRON AND A HIGH ALUMINA CONTENT SLAG FOR PRODUCING A HIGHLY REFRACTORY HIGH-ALUMINA CEMENT, WHICH METHOD COMPRISES THE STEPS OF CHARGING A FURNACE WITH COKE AND SLAGGING CONSTITUENTS POOR IN SILICA, CORRESPONDIG TO A COMPOSITION OF 20-65% AL2O3, LESS THAN 7% SIO2, 10-60% CAO AND 1-7% IRON OXIDES, WITH THE FOLLOWING SIZE RANGES: AL2O3 5-25MM., CAO 5-15MM., COKE 5-50 MM., ANY IRON ORE ADDED BEING IN A NON-SINTERED CONDITION, MAINTAINING A UNIFORM TEMPERATURE ABOVE 2000*C. IN THE BLASTING AREA BY BLOWING HOT AIR CONTAINIG WATER VAPOR AT A TEMPERATURE OF AT LEAST 600*C., AND DISCHARGING SEPARATELY THE MELTED SLAG CONTINUOUSLY AND THE LOWSILICON IRON IN BATCHES, THE TAPPING OF THE IRON BEING EFFECTED AT SUCH A RATE THAT THE RESPCETIVE POSITIONS OF THE SUPERIMPOSED LIQUID PHASES REMAIN SUBSTANTIALLY CONSTANT, THE DEPTH OF THE AVAILABLE SLAG CORRESPONDING TO AT LEAST ABOUT 20 MINUTES PRODUCTION.

Claim 2

A METHOD OF SIMULTANDOUS PRODUCTIN OF LOW-SILICON CAST IRON AND A HIGH ALUMINA CONTENT SLAG FOR PRODUCING A HIGHLY REFRACTORY HIGH-ALUMINA CEMENT, WHICH METHOD COMPRISES THE STEPS OF CHARGING A FURNACE WITH COKE AND SLAGGING CONSTITUENTS POOR IN SILICA, CORRESPONDIG TO A COMPOSITION OF 20-65% AL2O3, LESS THAN 7% SIO2, 10-60% CAO AND 1-7% IRON OXIDES, WITH THE FOLLOWING SIZE RANGES: AL2O3 5-25MM., CAO 5-15MM., COKE 5-50 MM., ANY IRON ORE ADDED BEING IN A NON-SINTERED CONDITION, MAINTAINING A UNIFORM TEMPERATURE ABOVE 2000*C. IN THE BLASTING AREA BY BLOWING HOT AIR CONTAINIG WATER VAPOR AT A TEMPERATURE OF AT LEAST 600*C., AND DISCHARGING SEPARATELY THE MELTED SLAG CONTINUOUSLY AND THE LOWSILICON IRON IN BATCHES, THE TAPPING OF THE IRON BEING EFFECTED AT SUCH A RATE THAT THE RESPCETIVE POSITIONS OF THE SUPERIMPOSED LIQUID PHASES REMAIN SUBSTANTIALLY CONSTANT, THE DEPTH OF THE AVAILABLE SLAG CORRESPONDING TO AT LEAST ABOUT 20 MINUTES PRODUCTION.