ID
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILESOLIDS PROCESSINGEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment Environment, Health, Safety & Security

Green chelating agent

By Chemical Engineering |

Akzo Nobel (Amsterdam; edlinks.chemengonline.com/6892-546) has commercialized a biodegradable chelating agent, Dissolvine GL, as a cost-effective, green alternative to the two most frequently used agents, ethylenediamineetetraacetic acid (EDTA) and nitrotriacetic acid (NTA). The product contains L-glutamic acid (from sugar, molasses, corn or rice), which is produced biochemically to yield the pure L isomer. The amino acid is then modified using a proprietary process to produce GLDA (glucamic acid diacetic acid). In addition to having similar metal chelation properties to alternatives, the GLDA is very soluble in water over a wide range of pH. At pH 1, for example, GLDA has a solubility of about 1 mol/L (35 wt.%) compared 0.1 wt.% for EDTA. This is significant for clean-in-place applications that use cleaning products formulated at low pH, says Akzo Nobel. GLDA is also thermally stable at temperatures above 300°C (compared to <150°C for EDTA and NTA), making it suitable for reducing the effects of "hard" water in boiler systems, says the firm.

Related Content
Embracing a circular economy
Last month, for the first time, U.S. plastic resin producers publicly committed to measurable targets toward complete recovery and recycling…
Achieving Excellence in Energy Efficiency
In today’s environmentally conscious world, industrial energy management is increasingly recognized as an essential business practice and economic necessity, rather…
Advanced Polymer Recycling
Polymers like polyethylene, polypropylene, polyvinyl chloride and polyester have become ubiquitous in manufacturing. The properties of polymer-based materials that make…

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
5 ways to Optimize Production of Polymers and Intermediate Petrochemicals
7 Ways to Achieve Process Safety in Chemical Production
Five Reasons Why Chemical Companies Are Switching to Tunable Diode Laser Analyzer Technology
Simplify sensor handling and maintenance with ISM
Three reasons to measure pH in-line

View More

Live chat by BoldChat