Methane → HCID 22253289, compound

Activated charcoal (130 g), which had been exposed to a stream of fermentor off-gas, was placed into a 1000 mL flask along with a stir bar. Cyclohexane (563 mL) was added to the flask and the slurry was agitated for 2 hours. Vacuum was applied (100 mbar) via an in-line cryogenic trap (30 mL capacity, immersed in liq. nitrogen). Four fractions were collected and combined to yield an isoprene/cyclohexane solution (2.1 wt % isoprene, total volume=53.1 g). This solution was vacuum distilled at 100 mbar and a new isoprene/cyclohexane solution was collected (yield=10.1 g), which was dried over 3 A molecular sieves. GC analysis of this solution indicated an isoprene content of 7.7 wt. %.

1. customwas placed into a 1000 mL flask along with a stir bar
2. customFour fractions were collected

ORD record

ord-d53a6f5aa1ba47a9b0f104c248020adf

Source dataset

uspto-grants-2014_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08901262B2