I D
× COMMENTARYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical EngineeringChementator briefs
Mercury removal Scientists at Flinders University (Adelaide, Australia; www.flinders.edu.au) have…
BUSINESS NEWSTECHNICAL & PRACTICALTOWER DOCTORFEATURE REPORTFACTS AT YOUR FINGERTIPSENGINEERING PRACTICEYOU AND YOUR JOBEQUIPMENT & SERVICESFOCUS
Weighing and Dosing
Pressure compensation ups accuracy in LIW feeders Loss-in-weight (LIW) feeder…
NEW PRODUCTS + Show More

Comment uncategorized

Safer, more sustainable control of runaway polymerization

By Mary Page Bailey |

Runaway polymerizations of acrylic monomers can lead to catastrophic fires and explosions in production plants and storage terminals, as well as during transportation. Special chemical products called shortstop inhibitors are used to minimize the likelihood of runaway polymerization reactions. A new shortstop inhibitor technology developed by Solvay S.A. (Brussels, Belgium; www.solvay.com), Phenothiazine (PTZ) LVT 2330, claims to bring several unique environmental, health and safety benefits to the market. The product is based on a non-toxic, non-volatile and biodegradable solvent, which reduces worker exposure to harmful solvents, and was developed as an alternative to N-methyl-2-pyrrolidone (NMP). Also, while other shortstop inhibitors on the market incorporate “green” solvents, these products contain only about half the active-ingredient concentration compared to Solvay’s formulation (30% active solids PTZ), which means that more of the shortstopping agent can immediately enter the acrylic monomer solution. Lower-concentration formulations not only exhibit slower shortstopping rates due to lower dosage rates, but they also require larger volumes, and therefore bigger storage requirements, to achieve the same performance.…
Related Content

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
GMP In The Cosmetic Industry
Solve turbomachinery problems: Miba Tilting Pad Bearings
Six Steps to Designing a Storage Vessel That Really Works
SICK Solutions for Cleaner Industries - Powerful Transitions
Gain a Digital Line of Sight Across the Whole Lifecycle of the Plant with a Digital Twin

View More