Reactive Monomer Applications
- Styrene Polymerization Control
- Styrene Polymerization Inhibitors
- Styrene Corrosion Control
- MMA Esterification Section Antifoulants
- Butadiene Mixed C4 Stabilizers
- Butadiene Popcorn Polymer Inhibitors
- VAM Distillation Section Antifoulants
- Butadiene Fouling Control
- Styrene Compressor Fouling Control
Contact Information
Global Nalco LocationsLocal Sales Offices
Energy Services Contacts
Nalco Company
WPS Headquarters
1601 W. Diehl Road
Naperville, Il 60563-1198
630-305-1000 Phone
630-305-2900 Fax
Nalco Energy Services Headquarters
7705 Highway 90-A
Sugar Land, TX 77478
281-263-7000 Phone
Environmentally Friendly Retarders for Styrene Manufacturing - Nalco's Green Retarder
In order to control unwanted monomer degradation when manufacturing styrene, a polymerization retarder is commonly added to the process. Typical products used for this purpose are dinitrophenols such as DNOC (di-nitro-ortho-cresol) or DNBP (di-nitro-sec-butyl-phenol). Despite being effective in controlling polymerization, these retarders are extremely toxic. Oral LD50 values give an approximate idea:
| Product | Oral LD50 - Rat (mg/kg) |
| DNOC | 10 |
| DNBP | 58 |
Nalco offers a technical and cost effective “green” alternative to these toxic compounds. Under the Prism® umbrella, Nalco offers its innovative, environmentally friendly options as alternatives to nitro-compound derivatives.
With an Oral LD50 number superior to 2000mg/kg and proven in the entire range of operating conditions commercially found, these user-friendly compounds are registered under the main global EH&S product registries.
Our compounds have been validated in the key major styrene manufacturing processes and are offered with complete monitoring tools and local service support and follow-up. Appropriate replacement procedures have also been developed, making the substitution of the nitro-phenol compounds possible during the plant run.
Contact our team of experts for more information.
