溶鉄のアルゴンガスによるC-O脱ガス反応速度について

抄録

This study aims at the kinetic investigation on the reaction between gas and liquid iron. A liquid iron droplet was levitated in a pure argon stream and the rates of carbon and oxygen removal from the droplet were measured. The CO absorption and degassing-rates were also measured by using crucibles. The reaction proceeds according to C+O=CO until one of these elements is eliminated. The reaction is found to be controlled by the transfers of the element from iron bulk to gas-melt interface and of CO from the interface to gas bulk. This mechanism can explain the different reaction behaviors between the levitation technique and the crucible melting method. In the case of the crucible melting method, the reaction proceeds complicatedly depending on the extent side reactions between the iron melt and the crucible. On the basis of the results obtained, a discussion has been made on the degassing reaction occurring in some practical process.