Patent ID: 8883708
Filing Date: 2014-11-11
Classification: A01N,B01F,C09K,C11D,F25B

Abstract:
1. An azeotrope-like composition consisting essentially of (a) trans-1,3,3,3-tetrafluoropropene (trans HFO-1234ze) and (b) 1,1,1,2-tetrafluoroethane (“HFC-134a”), said HFC-134a being present in the azeotrope-like composition in a range of from about 25 wt % to less than 100 wt %, wherein said composition range includes a minimum boiling azeotrope having a liquid composition component concentration equal to the vapor composition component concentration, whereby at a pressure of about 14.4 psia said azeotrope-like composition has a boiling point of −25° C.+/−3° C.