Title:
METHOD FOR MANUFACTURING SOLID POWDER DERIVED FROM CARBAZIC ACID
Document Type and Number:
WIPO Patent Application WO/2012/091261
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing solid powder derived from carbazic acid, which involves inducing a reaction of a liquid hydrazine derivative with carbon dioxide at a high pressure of about 0.5 MPa to about 100 MPa. During the reaction, the pressure may range from about 0.5 MPa to about 100 MPa. Although the reaction of the carbon dioxide with the liquid hydrazine derivative occurs when the pressure is adjusted to below about 0.5 MPa, sticky deposits having a gel form may be gradually generated as deposits having a powder form are not generated.
Inventors:
HUR NAM HWI (KR)
LEE BYEONG NO (KR)
LEE BYEONG NO (KR)
Application Number:
PCT/KR2011/007573
Publication Date:
July 05, 2012
Filing Date:
October 12, 2011
Export Citation:
Assignee:
UNIV SOGANG IND UNIV COOP FOUN (KR)
HUR NAM HWI (KR)
LEE BYEONG NO (KR)
HUR NAM HWI (KR)
LEE BYEONG NO (KR)
International Classes:
C07C281/02; B01D11/02; B01J10/00; B01J16/00
Foreign References:
| JPH08134038A | 1996-05-28 | |||
| US2865714A | 1958-12-23 |
Other References:
AGARWAL R. K. ET AL.: "Oxocation complexes of carbazic acids", ORIENTAL JOURNAL OF CHEMISTRY, vol. 1, no. 2, 1985, pages 85 - 88
STAAL E. ET AL.: "Carbamates. IV. The carbamate of hydrazine", DANSK TIDSSKRIFT FOR FARMACI, vol. 25, no. 1, 1951, pages 1 - 12
STAAL E. ET AL.: "Carbamates. IV. The carbamate of hydrazine", DANSK TIDSSKRIFT FOR FARMACI, vol. 25, no. 1, 1951, pages 1 - 12
Attorney, Agent or Firm:
HALLA PATENT&LAW FIRM (KR)
한라특허법인 (KR)
한라특허법인 (KR)
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