Stepped cooling to cryo
The Unistat 912w has a temperature range of -90…200°C with 6 kW heater and 3.5 kW cooling at -60°C. The entire temperature range can be covered using a single heat transfer fluid (HTF) “DW-Therm” http://www.huber-online.com/en/product_thermofluids.aspx The picture shows a Unistat 912w being commissioned onto an Asahi 60-litre reactor. This combination was the subject of a case study that had impressive results in that the Unistat 912w was able to cool the reaction mass to -88°C.
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Case study with Asahi AG! 60 Liter Reactor
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