Method of and means for producing milk of lime and for causticizing green liquor

Claim 1

THE METHOD OF SLAKING LIME AND PRODUCING MILK OF LIME WHICH COMPRISES PROVIDINGAT A CONSTANT RATE A SUPPLY OF NON-SLAKED LIME, PROVIDING AN OVERALL SUPPLY- OF AN AQUEOUS SLAKING AND DILUTING LIQUID AT A CONSTANT PREDETERMINED RATE, CONTINUOUSLY DELIVERING TO THE TOTAL OF THE SUPPLIED LIME, A PORTION OF THE SUPPLIED LIQUID LESS THAN THE TOTAL BUT MORE THAN ENOUGH TO COMPLETE THE SLAKING OF THE TOTAL OF THE SUPPLIED LIME AND IMMEDIATELY, PRELIMINARILY, CONTINUOUSLY, RAPIDLY, AND THOROUGHLY MIXING SAID LIME AND SAID PORTION OF LIQUID TO ASSOCIATE WITH EACH PARTICLE OF LIME A COATING OF LIQUID, CONTINUOUSLY DISCHARGING THE MIXTURE FROM THE PRELIMINARY MIXING, AFTER INITIATION, BUT BEFORE SUBSTANTIAL COMPLETION OF THE SLAKING REACTION, CONTINUOUSLY MEASURING THE TEMPERATURE OF THE MIXTURE OF LIME AND LIQUID AS IT IS DISCHARGED FROM THE PRELIMINARY MIXING, MAINTAINING SAID TEMPERATURE SUBSTANTIALLY CONSTANT WITHIN THE DESIRED RANGE BY INCREASING SAID PORTION OF LIQUID WHEN SAID TEMPERATURE RISES AND BY DECREASING THE SAME WHEN SAID TEMPERATURE FALLS, GRADUALLY CONVEYING AND AGITATING THE PRELIMINARILY MIXED MATERIAL FOR A SUFFICIENT TIME TO COMPLETE THE SLAKING REACTION AND TO PRODUCE A VISCOUS SLAKED LIME SLURRY, AND DILUTING THE SLAKED LIME SLURRY SO PRODUCED BY CONTINUOUSLY DELIVERING THERETO THE REMAINDER OF SAID OVERALL SUPPLY OF SLAKING LIQUID, SAID REMAINDER BEING DECREASED AND INCREASED TO COMPENSATE FOR INCREASES AND DECREASES IN THE DELIVERY OF SAID PORTION TO SAID PRELIMINARY MIXING OPERATION AND TO MAKE CONSTANT THE OVERALL SUPPLY OF LIQUID TO THE PROCESS.

Claim 2

THE METHOD OF SLAKING LIME AND PRODUCING MILK OF LIME WHICH COMPRISES PROVIDINGAT A CONSTANT RATE A SUPPLY OF NON-SLAKED LIME, PROVIDING AN OVERALL SUPPLY- OF AN AQUEOUS SLAKING AND DILUTING LIQUID AT A CONSTANT PREDETERMINED RATE, CONTINUOUSLY DELIVERING TO THE TOTAL OF THE SUPPLIED LIME, A PORTION OF THE SUPPLIED LIQUID LESS THAN THE TOTAL BUT MORE THAN ENOUGH TO COMPLETE THE SLAKING OF THE TOTAL OF THE SUPPLIED LIME AND IMMEDIATELY, PRELIMINARILY, CONTINUOUSLY, RAPIDLY, AND THOROUGHLY MIXING SAID LIME AND SAID PORTION OF LIQUID TO ASSOCIATE WITH EACH PARTICLE OF LIME A COATING OF LIQUID, CONTINUOUSLY DISCHARGING THE MIXTURE FROM THE PRELIMINARY MIXING, AFTER INITIATION, BUT BEFORE SUBSTANTIAL COMPLETION OF THE SLAKING REACTION, CONTINUOUSLY MEASURING THE TEMPERATURE OF THE MIXTURE OF LIME AND LIQUID AS IT IS DISCHARGED FROM THE PRELIMINARY MIXING, MAINTAINING SAID TEMPERATURE SUBSTANTIALLY CONSTANT WITHIN THE DESIRED RANGE BY INCREASING SAID PORTION OF LIQUID WHEN SAID TEMPERATURE RISES AND BY DECREASING THE SAME WHEN SAID TEMPERATURE FALLS, GRADUALLY CONVEYING AND AGITATING THE PRELIMINARILY MIXED MATERIAL FOR A SUFFICIENT TIME TO COMPLETE THE SLAKING REACTION AND TO PRODUCE A VISCOUS SLAKED LIME SLURRY, AND DILUTING THE SLAKED LIME SLURRY SO PRODUCED BY CONTINUOUSLY DELIVERING THERETO THE REMAINDER OF SAID OVERALL SUPPLY OF SLAKING LIQUID, SAID REMAINDER BEING DECREASED AND INCREASED TO COMPENSATE FOR INCREASES AND DECREASES IN THE DELIVERY OF SAID PORTION TO SAID PRELIMINARY MIXING OPERATION AND TO MAKE CONSTANT THE OVERALL SUPPLY OF LIQUID TO THE PROCESS.