The presence of alkalis (Na, K) in the blast furnace process (BF) is known to have negative influences on the process due to the catalytic effect on coke gasification, destruction of carbon structure by intercalation of alkali, scaffold formation and refractory attack. The nature of alkali compounds combined with the character of the process causes alkalis to recirculate and accumulate in the BF. Within this study, the distribution of alkali at different depths in the shaft for different charging practices has been studied by examination of excavated coke samples from LKAB’s Experimental Blast Furnace. A possible way of controlling the alkali load in blast furnace has been investigated by studying coke with modified ash composition for binding alkali in stable phases that can be drained out from BF with the slag.