| Another major epoxide, propylene oxide, comes from propene reacting with organic hydroperoxides. |
| Instead, purchase animal-friendly antifreeze, which contains propylene glycol rather than ethylene glycol, the center says. |
| Ethylene or propylene gas mixtures were renewed every day after aeration of the jars. |
| The present invention relates to a new fluidized-bed catalyst used in a process of propylene ammoxidation to acrylonitrile. |
| He used a catalyst discovered by Karl Ziegler to produce polypropylene from propylene. |
| Specimens were dehydrated in a graded series of ethyl alcohol and propylene oxide solutions and embedded in araldite. |
