Title:
METHOD FOR EXTRACTING SOLIDIFICATION RETARDANT
Document Type and Number:
Japanese Patent JP2017024948
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To correctly evaluate the residual amount of a solidification retardant by efficiently eluting the solidification retardant into a solvent.SOLUTION: Provided is a method for extracting a solidification retardant 1, where, when the solidification retardant 1 is extracted from slag 2 subjected to solidification prevention treatment using the solidification retardant 1 into a solvent 3, mixing is performed in such a manner that the weight ratio of the solvent 3 to the slag 2 exceeds 0.1 and also reaches less than 10, the slag 2 is contacted with the solvent 3 in the range of 10 hr or lower, and the solidification retardant 1 is extracted to the solvent 3. Further, when the solidification retardant 1 is extracted to the solvent, it is preferable that the slag 2 is contacted with the solvent 3 for above 1 min and also within 3 hr. Further, when the solidification retardant 1 is extracted to the solvent 3, it is preferable that the slag 2 is shaken in the solvent 3 at a shaking velocity of 10-100 times/min.SELECTED DRAWING: Figure 1
Inventors:
KOBAYASHI YOSHIHIRO
SASAKI TATSUYA
INOUE TAKESHI
SUZUKI RYOHEI
OYAMA TAKASHI
SASAKI TATSUYA
INOUE TAKESHI
SUZUKI RYOHEI
OYAMA TAKASHI
Application Number:
JP2015146616A
Publication Date:
February 02, 2017
Filing Date:
July 24, 2015
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
C04B5/00; B01D11/02
Attorney, Agent or Firm:
Toshio Yasuda
Mikio Yasuda
Mikio Yasuda