Butadiene Passivation

Popcorn seeds and metal passivation, traditionally by sodium nitrite, are widely used in the butadiene industry to control fouling. Unfortunately, sodium nitrite presents safety and environmental hazards, has stringent temperature and pH requirements, and is expensive to dispose of. To overcome these limitations, Nalco Water developed an effective, nontoxic passivation technology which has been adopted by butadiene producers globally.