| 摘要 |
<p>PURPOSE:To reduce unit requirements of oxygen and a deoxidizing agent and to obtain high purity gaseous CO by stopping blowing into a converter at the time when the amt. of C in molten steel is slightly higher than that in an end product, allowing C to react with oxygen in the molten steel and producing gaseous CO by vacuum degassing treatment. CONSTITUTION:Inert gas or the like is blown into a converter and molten steel is subjected to vacuum degassing treatment. Blowing is stopped at the time when the amt. of C in the molten steel is slightly higher than that in an end product. Gaseous CO is then produced by carrying out vacuum degassing treatment until the desired amt. of C is attained. The produced gaseous CO is recovered.</p> |
