Refrigerant for middle- or low-temp refrigerating system
Title:
Refrigerant for middle- or low-temp refrigerating system
Application Number:
00121160
Application Date:
2000/07/28
Announcement Date:
2001/01/10
Pub. Date:
Publication Number:
1279266
Announcement Number:
1111193
Grant Date:
Granted Pub. Date:
2003-6-11
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
C09K 5/04
Applicant(s):
Qinghua Univ.
Inventor(s):
Zhu Mingshan, Shi Lin, Han Lizhong
Key Words:
Refrigerant, middle- or low-temp refrigerating system
Abstract:
A refrigerant for middle- or low-temp refrigerating system is prepared from propane (R290), monochlorodifluoromethane (HCFC-22) and 1,1,1,2-tetrafluoroethane (HFC-134a). Its advantages include high environmental performance (ODP) and greehouse effect (GWP) and thermodynamic nature, no damage to ozonosphere and no need of modifying existing equipment.
Claim:
Priority:
PCT:
LegalStatus:

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