METHOD FOR PREPARING FERROMOLYBDENUM ALLOY BRIQUETTE FROM POWDER MIXTURE OF MILL SCALE AND MOLYBDENUM OXIDE POWDER THROUGH SOLID-GAS REACTION, AND BRIQUETTE PREPARED BY SAME

WIPO Patent Application WO/2012/026725

A3

The present invention relates to a method for preparing a ferromolybdenum alloy in a briquette form, wherein the ferromolybdenum alloy is used for adjusting ingredients of a melt in a steelmaking process for manufacturing special steel. More particularly, the present invention relates to a method for preparing a ferromolybdenum alloy briquette, and a briquette prepared by same, wherein the ferromolybdenum alloy briquette is obtained by: mixing mill scale (mixture of Fe, FeO, and Fe2O3) powders discharged from a steel forging process as an iron raw material and molybdenum oxide (MoO3) powders as a molybdenum raw material; reducing this mixture in a powdery state using a hydrogen gas; mixing the prepared ferromolybdenum alloy powders and wax and press-molding the resulting mixture; sintering the press-molded mixture at a high temperature in a hydrogen gas atmosphere; and then cooling down the sintered mixture to prepare a ferromolybdenum alloy in a briquette form.

KIM BYUNG-SU (KR)
KIM SANG-BAE (KR)
RYU TAEGONG (KR)
CHOI YOUNG-YOON (KR)
LEE HOOIN (KR)

PCT/KR2011/006185

May 18, 2012

August 22, 2011

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KOREA INST GEOSCIENCE & MINERA (KR)
KIM BYUNG-SU (KR)
KIM SANG-BAE (KR)
RYU TAEGONG (KR)
CHOI YOUNG-YOON (KR)
LEE HOOIN (KR)

B22F9/22; B22F9/04; C22C33/02

KR100953664B1	2010-04-20
KR100637656B1	2006-10-24
KR100646573B1	2006-11-23
JP2009263723A	2009-11-12

PARK, Myoung Sik et al. (Yeosam Bldg.648-23, Yeoksam-dong, Gangnam-gu, Seoul 135-080, KR)

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