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Patent Searching and Data


Title:
METHOD FOR REFINING HOT METAL IN CONVERTOR
Document Type and Number:
WIPO Patent Application WO/2018/038508
Kind Code:
A1
Abstract:
A method for refining hot metal in a convertor is disclosed. In one embodiment, the method for refining hot metal in a convertor comprises the steps of: pouring hot metal tapped from a blast furnace into a ladle to transfer the hot metal to a kanvara reactor (KR) facility, and introducing a desulfurizing agent to remove sulfur (S); charging the desulfurized hot metal into a pretreatment converter, and removing silicon (Si) from the hot metal by blowing oxygen into the hot metal; tapping the desiliconized hot metal; and charging the tapped hot metal into a decarburizing converter to remove carbon (C). The hot metal poured into the ladle contains 0.6 to 8.0 wt% of silicon (Si).

Inventors:
KIM, Kyung Hwan (#105-1702, 103 Banchon-ro, Songak-eup,Dangjin-si, Chungcheongnam-do, 31733, KR)
CHEONG, Gwon Hee (#104-102, 36 Mallijae-ro,Mapo-gu, Seoul, 04189, KR)
BYUN, Seung Yong (#204-1205, 28 Sinbogun-ro 3-gil, Songak-eup,Dangjin-si, Chungcheongnam-do, 31724, KR)
LEE, Sang Yeol (#107-403, 23 Donggureung-ro 129beon-gil,Guri-si, Gyeonggi-do, 11914, KR)
JEON, Young Duck (#506-1405, 333 Gyeongui-ro, Ilsandong-gu,Goyang-si, Gyeonggi-do, 10417, KR)
Application Number:
KR2017/009162
Publication Date:
March 01, 2018
Filing Date:
August 22, 2017
Export Citation:
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Assignee:
HYUNDAI STEEL COMPANY (63 Jungbong-daero, Dong-gu, Incheon, 22525, KR)
International Classes:
C21C7/068; C21C5/30; C21C7/00; C22C38/02; F27D3/16; F27D7/02; F27D19/00
Attorney, Agent or Firm:
AJU INTERNATIONAL LAW & PATENT GROUP (12-13th Floor, Gangnam Mirae Tower 174 Saimdang-Ro,Seocho-gu, Seoul, 06627, KR)
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