Mini Bio (1) Ginger Zee was born on January 13, 1981 in Orange, California, USA as Ginger Renee Zuidgeest. She is a writer, known for Good Morning America (1975), Good Morning America Weekend Edition (1993) and Dancing with the Stars (2005). She has been married to Ben Aaron since June 7, 2014.
There is disclosed a process for the isomerization of a branched diene which comprises passing the branched diene in the vapor phase over a boron phosphate catalyst, the improvement comprising a catalyst which has an initial molar ratio of P/B of less than 1.0 but more than 0.6.
Loss of the isobutylene which is recycled must be minimized. In the present invention, the dehydrogenation process is operated so as to limit the isomerization of isobutane or isobutylene to their corresponding straight-chain (i.e., normal) form.f the feed stream is substantially pure isobutane (i.e., it contains no isobutylene) it has been determined that, when using a Pt-Nd on zinc aluminate catalyst, a selectivity of 95% or more to isobutylene can be obtained with a residence time of about 5 seconds at a temperature of about 510Â° C. or lower.