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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
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机译:改变N-(膦酰基甲基)亚氨基二乙酸的晶体尺寸分布以改善过滤和产品质量
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摘要
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.
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