スラグの粉化抑制方法 - Nippon Steel Corporation

Title:

スラグの粉化抑制方法

Document Type and Number:

Japanese Patent JP4272462

Kind Code:

B2

Abstract:

To provide a method for suppressing powdering of a slag and using the slag effectively.

The slag contains, as main components, silicon oxide, aluminum oxide and calcium oxide, and among the silicon oxide content x (%), the aluminum oxide content y (%), and the calcium oxide content z (%), there are relations: formula (1) [z≥50, y>x, and x+y+z=100]. The suppression method for powdering the slag is cooling the slag to solidify from its melt state by a cooling speed V (°C/min) which satisfies the following relation on the contents of respective components: formula (2) [logV≥(10x-45)/(100-0.6x-y)].

Inventors:

Naoki Hirai
Toshitaka Yuki

Application Number:

JP2003118805A

Publication Date:

June 03, 2009

Filing Date:

April 23, 2003

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