Altering the crystal size distribution of N-(phosphonomethyl) iminodiacetic acid for improved filtration and product quality

Altering the crystal size distribution of N-(phosphonomethyl) iminodiacetic acid for improved filtration and product quality

Improved processes for preparing and crystallizing N-(phosphonomethyl)iminodiacetic acid are provided. The processes include adding N-(phosphonomethyl)iminodiacetic acid seed crystals to N-(phosphonomethyl)iminodiacetic acid reaction solutions. Provided are beds of crystallized N-(phosphonomethyl)im...

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Hauptverfasser: Rangachari, Sunder S, Friedman, Todd C, Baysdon, Sherrol Lee, Becher, David Z
Format: Patent
Sprache:eng
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Zusammenfassung:Improved processes for preparing and crystallizing N-(phosphonomethyl)iminodiacetic acid are provided. The processes include adding N-(phosphonomethyl)iminodiacetic acid seed crystals to N-(phosphonomethyl)iminodiacetic acid reaction solutions. Provided are beds of crystallized N-(phosphonomethyl)iminodiacetic acid having improved permeability and filtration rate and reduced impurities.