I D
× COMMENTARYEDITOR'S PAGECOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
Nanofiltration Toray Industries, Inc. (Tokyo, Japan; www.toray.com) has created what…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment PDF Processing & Handling

Technology Profile: Production of Polyacrylonitrile Fibers

By Intratec Solutions |

This column is based on “Polyacrylonitrile Production – Cost Analysis,” a report published by Intratec. It can be found at: www.intratec.us/analysis/polyacrylonitrile-production-cost. Polyacrylonitrile (PAN) is a polymer resin mainly composed of acrylonitrile. This important acrylic resin is used in the production of a wide range of products, from ultra-filtration membranes to high-quality carbon fibers. The process The process discussed here comprises two main phases: first, acrylonitrile is polymerized with methyl acrylate comonomer and additives in an aqueous solution of demineralized water; then the copolymer is passed through transformation steps to become a fiber. Figure 1 presents a simplified flow diagram. Figure 1. The diagram shows a production process for polyacrylonitrile (PAN)[/caption] Polymerization. Initially, a mixture of acrylonitrile, methyl acrylate and itaconic acid is fed continuously to a continuous stirred-tank reactor (CSTR) where the polymerization takes place. The reaction is initiated by feeding aqueous solutions of potassium persulfate (oxidizer), sulfur dioxide (reducing agent), ferrous iron (promoter), and sodium bicarbonate (buffering agent). The heat of polymerization is removed by water…
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
How separation processes profit from Industrial Internet of Things (IIoT) solutions
Up to 80% increased production rates in plastic recycling
Higher throughput and purity in sodium bicarbonate production with up to 15% less energy consumption
Help feeding nations with chemical filtering technologies
Not at the forefront of Industry 4.0?

View More

Live chat by BoldChat