| 20110056662 | REFRIGERANT COOLING APPARATUS - A refrigerant cooling apparatus is provided, in which a circulating refrigerant may be cooled to a prescribed temperature efficiently in a stable condition even when the cooling temperature of the circulating refrigerant is near the freezing point of the circulating refrigerant. This apparatus is one which cools the circulating refrigerant by countercurrent indirect heat exchange between a circulating refrigerant which cools objects to be cooled such as a low temperature reaction vessel | 03-10-2011 |
