Processes for making activated carbon

Claim 1

THE STEPS IN THE PROCESS OF MAKING ACTIVATED CARBON, COMPRISING HEATING A MIXTURE OF A POTASSIUM SALT OF A WATER-SOLUBLE TAR ACID FROM THE PRODUCTION OF OIL PRODUCTS AND OF A CARBONACEOUS MATERIAL TO 300-600* C., AFTERWARDS INTIMATELY MIXING THE THUS FORMED PRODUCT WITH A CONTROLLED AMOUNT OF A WATER-SOLUBLE POTASSIUM COMPOUND BEING A MEMBER OF THE GROUP CONSISTING OF POTASSIUM CARBONATE, POTASSIUM SULFATE, POTASSIUM SULFITE, POTASSIUM SULFIDE, POTASSIUM CYANIDE, POTASSIUM SULFOCYANIDE, AND POTASSIUM CYANTE, ACTIVATING SAID INTIMATE MIXTURE AT TEMPERATURES FROM 800 TO 1200* C., AND EXTRACTING SAID LAST-NAMED WATER-SOLUBLE POTASSIUM COMPOUND; WHEREBY BY INCREASING THE RATION OF CHEMICALLY BOUND POTASSIUM TO ORGANIC SUBSTANCE IN THE PRODUCT, FINE CAPILLARIES ARE PRODUCED IN THE FINAL PRODUCT, AND BY INCREASING THE RATIO OF CHEMICALLY BOUND OXYGEN TO ORGANIC SUBSTANCE IN THE PRODUCT FORMED BY THE FIRST HEATING STEP THE APPARENT DENSITY OF THE FINAL PRODUCT IS LOWERED.