Title:
MOLTEN IRON DEPHOSPHORIZING AGENT, REFINING AGENT, AND DEPHOSPHORIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/119392
Kind Code:
A1
Abstract:
A molten iron dephosphorizing agent containing 2-20 mass% Al2O3, the balance being calcium ferrite and impurities and the (Al2O3 mass%)/(CaO mass%) ratio being 0.04-0.5. Dephosphorization of molten iron is performed by adding a refining agent comprising said dephosphorizing agent into a converter furnace.
Inventors:
KAKIMOTO SHOHEI (JP)
NOZAKI YUJI (JP)
GONDA YOSHIAKI (JP)
KIYOSE AKIHITO (JP)
FURUKAWA NAOKI (JP)
NOZAKI YUJI (JP)
GONDA YOSHIAKI (JP)
KIYOSE AKIHITO (JP)
FURUKAWA NAOKI (JP)
Application Number:
PCT/JP2016/089082
Publication Date:
July 13, 2017
Filing Date:
December 28, 2016
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C21C1/02; C21C5/36
Domestic Patent References:
| WO2013190591A1 | 2013-12-27 |
Foreign References:
| JP2014031562A | 2014-02-20 | |||
| CN101775465A | 2010-07-14 | |||
| JP2014040623A | 2014-03-06 | |||
| JPH02232313A | 1990-09-14 |
Attorney, Agent or Firm:
HAGIWARA, Yasushi et al. (JP)
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