The present work focuses on the possibility of recycling the cement kiln bypass dust
(CKBp) in cement industry through its replacement to the raw meal (clay, limestone) and/or
clinker. Replacement of CKBp dust by washing processes techniques were applied on reuse
cement kiln bypass dust for El Arish Cement Company (ACC) in the central Sinai for
solving the problem of high Cl contents to be conformable with the quality control factors.
This study proved that replacement process of raw meal by washed CKBp dust did not affect
the quality of the raw mix therefore replacement limit 3% for raw meal is considered. The
process of replacement on the other hand will save raw meal and reduced the cost. Using of
washed CKBp dust to replace raw meal will consume every day about 156 to 160 tons (about
78% CKBp dust). Using of 5% washed CKBp to replace the clay lead to consume about 114
t/d from CKBp dust. Thus, the remove of about 52% from the total quantity CKBp dust was
achieved. The produced clinker per day was about 6000 t. If we replaced 3% clinker by
washed CKBp dust about 180 t clinker is saved every day. This consumed about 81% per
day from CKBp dust this results for one production line.