Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
NITROUS OXIDE SELECTIVE GAS SEPARATION MEMBRANE AND METHOD FOR PURIFYING NITROUS OXIDE USING SAME
Document Type and Number:
WIPO Patent Application WO/2018/004314
Kind Code:
A1
Abstract:
The present invention provides a nitrous oxide selective gas separation membrane which comprises a gas separation layer containing a polymer material which is a polysulfone-based polymer or a polyimide-based polymer, the nitrous oxide selective gas separation membrane exhibiting a nitrous oxide separation property. The nitrous oxide selective gas separation membrane according to the present invention is efficient in the separation of high-purity nitrous oxide from a carbon suboxide-containing gas mixture produced in a process for manufacturing nitrous oxide by pyrolysis of ammonium nitrate containing nitrous oxide, nitrogen or oxygen or other gases as main ingredients, and from a nitrous oxide-containing exhaust gas mixture discharged in industrial processes such as processes for manufacturing adipic acid, nitric acid and caprolactam, and can economically perform a separation and concentration.

Inventors:
KIM, Jeong Hoon (#131-1203, 57 Eoeun-ro,Yuseong-gu, Daejeon, 34140, KR)
LEE, Soo Bok (#105-502, 16 Gujeuk-ro,Yuseong-gu, Daejeon, 34010, KR)
Application Number:
KR2017/007000
Publication Date:
January 04, 2018
Filing Date:
June 30, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY (141 Gajeong-ro, Yuseong-gu, Daejeon, 34114, KR)
International Classes:
B01D71/68; B01D53/22; B01D63/02; B01D63/06; B01D63/10; B01D67/00; B01D69/04; B01D69/08; B01D69/10; B01D71/64
Foreign References:
JP2003038942A2003-02-12
KR20060085845A2006-07-28
US4230463A1980-10-28
KR20110130486A2011-12-05
US5409524A1995-04-25
Attorney, Agent or Firm:
LEE, Won Hee (8th Fl, Sung-ji Heights II,147, Teheran-ro,Gangnam-gu, Seoul, 06132, KR)
Download PDF: