Speaker
ZHIWU YAN
(University of Science and Technology Beijing)
Description
The cycle and enrichment of potassium (K) exist in the blast furnace. Under laboratory
conditions, a kind of vapor adsorption test between the K and sinter was design to research
the adsorption character of sinter ore on K vapor, and adsorption mechanism was analyzed by
some microscopic observation. Elemental K and K2CO3was chosen aspotassium source to
provide K vapor. Sinter ore had the adsorption capacity for K vapor. After adsorption,
existence forms of the K in the sinter ore were potassium oxide, potassium aluminum oxide
and potassium iron oxide.The crack appeared in the enrichment area and stretched to the
nearbymicro hole. Inward diffusion of K happened, which mainly depend on the interaction
between the K and sinter ore and the crack. The model of adsorption process was presented.
The adsorption was the mixture of physical absorption and chemical absorption, and chemical
adsorption was the main adsorption manner.
Author
ZHIWU YAN
(University of Science and Technology Beijing)
Co-authors
BIN GAO
(University of Science and Technology Beijing)
HESHUN ZHANG
(ShougangJingtang United Iron & Steel Co. Ltd)
JIANLIANG ZHANG
(University of Science and Technology Beijing)
XIANG YUAN
(University of Science and Technology Beijing)
ZHENGJIAN LIU
(University of Science and Technology Beijing)