Disclosed herein are azeotrope or near-azeotrope compositions comprising 2,3,3,3-tetrafluoropropene (HFC-1234yf) and hydrogen fluoride (HF). These compositions are useful in processes to produce and purify HFC-1234yf. Additionally, disclosed herein are processes for the manufacture of HFC-1234yf.

 
Web www.patentalert.com

< Carotenoid ketolase genes with improved ketocarotenoid yield

> Bacillus thuringiensis cry gene and protein

~ 00492