Title:
METHOD FOR CONTROLLING HYDROGEN DESORPTION-RECOMBINATION STEP IN HDDR PROCESS, METHOD FOR MANUFACTURING RARE EARTH-IRON-BORON-BASED RARE EARTH MAGNETIC POWDER INCLUDING HYDROGEN DESORPTION-RECOMBINATION STEP, AND ACCORDINGLY MANUFACTURED RARE EARTH-IRON-BORON-BASED RARE EARTH MAGNETIC POWDER
Document Type and Number:
WIPO Patent Application WO/2014/058218
Kind Code:
A1
Abstract:
The present invention features a method for controlling a hydrogen desorption-recombination step in a HDDR process in which the hydrogen release rate is controlled such that the time necessary for an endothermic reaction in the hydrogen desorption-recombination step in the hydrogenation-disproportionation-desorption-recombination (HDDR) process exceeds three minutes.
Inventors:
LEE JUNG GOO (KR)
YU JI HUN (KR)
BAEK YOUN KYOUNG (KR)
KIM YOUNG KUK (KR)
YU JI HUN (KR)
BAEK YOUN KYOUNG (KR)
KIM YOUNG KUK (KR)
Application Number:
PCT/KR2013/009006
Publication Date:
April 17, 2014
Filing Date:
October 08, 2013
Export Citation:
Assignee:
KOREA MACH & MATERIALS INST (KR)
International Classes:
B22F9/16; H01F1/06
Foreign References:
| KR20120003183A | 2012-01-10 | |||
| JP2000336405A | 2000-12-05 | |||
| JPH05163510A | 1993-06-29 | |||
| JP2012099520A | 2012-05-24 |
Other References:
LEE, S. H. ET AL.: "Effect of Magnetic properties and Microstructure of Hydrogenation stage in HDDR process", JOURNAL OF KOREAN POWDER METALLURGY INSTITUTE, vol. 18, no. 5, 88, October 2011 (2011-10-01), pages 443 - 448
Attorney, Agent or Firm:
LEE, SUNG JAE (KR)
이성재 (KR)
이성재 (KR)
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