Diisobutylene process

Details Diisobutylene process Diisobutylene process

2006-03-14

2006-03-14

Griffin, Walter D. (Department: 1764)

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce unsaturate

C585S329000, C585S515000, C585S526000

Reexamination Certificate

active

07012167

ABSTRACT:
This invention is a process for producing diisobutylene from isobutylene. The process comprises first oligomerizing isobutylene to diisobutylene using a sulfonic acid-type ion exchange resin. The oligomerization step is followed by contacting the diisobutylene product with an adsorbent to remove sulfur impurities produced during the oligomerization step. The adsorbent is a large pore zeolite such as zeolite X and zeolite Y. Optionally, the purified diisobutylene may be hydrogenated to isooctane using a hydrogenation catalyst.

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