DEPHOSPHORIZING FLUX AND METHOD FOR PREPARING SAME

Title:

DEPHOSPHORIZING FLUX AND METHOD FOR PREPARING SAME

Document Type and Number:

WIPO Patent Application WO/2018/110914

Kind Code:

A2

Abstract:

The present invention relates to a dephosphorizing flux for controlling a phosphorus component contained in a molten metal, wherein the dephosphorizing flux comprises a main raw material containing BaCO3 and an auxiliary raw material, the auxiliary raw material comprising a first raw material comprising any one of NaHCO3 or NA2CO3 and a second raw material comprising CaF2. Therefore, according to the dephosphorizing flux in an embodiment of the present invention, the dephosphorizing ratio is improved, and the clogging of a low-noise nozzle, which blows carrier gas during dephosphorization, can be prevented. In addition, the substances harmful to the environment as in the prior art are not used, and thus the risk of environmental pollution can be reduced, and the cost burden of the facilities for preventing environmental pollution and the management of harmful substances can be solved.

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Inventors:

HAN WOONG HEE (KR)
AHN CHONG TAE (KR)
BEAK JUN JEONG (KR)
SONG MIN HO (KR)
KANG SOO CHANG (KR)

Application Number:

PCT/KR2017/014456

Publication Date:

June 21, 2018

Filing Date:

December 11, 2017

Export Citation:

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Assignee:

POSCO (KR)

International Classes:

C21C7/064; C21C7/076; C22C33/04; C22C38/04

Foreign References:

KR100889859B1	2009-03-24
KR101036317B1	2011-05-23
KR101036321B1	2011-05-23

Other References: