Patent ID: 7211127

Claim:
A system for determining a quantity of flux to be added to a batch of molten steel to reduce an initial sulfur content thereof to a desired sulfur content, the system comprising: a device capable of determining initial flux and alloy quantities comprising a batch of molten steel; a device capable of determining a weight value indicative of weight of said batch of molten steel; a temperature sensor producing a temperature value indicative of temperature of said batch of molten steel; an oxygen sensor producing an oxygen value indicative of free oxygen content of said batch of molten steel; and a computer configured to determine a quantity of flux to be added to said batch of molten steel to reduce said initial sulfur content to said desired sulfur content, said quantity of flux a function of said initial flux and alloy quantities, a quantity and composition of slag carryover, a quantity of alloy added to said batch of molten steel, said weight value, temperature value and said oxygen value.