专利检索 ap:"Sunder S. Rangachari" 第 1 页

1.

发明授权
Altering the crystal size distribution of N-(phosphonomethyl) iminodiacetic acid for improved filtration and product quality 有权
标题翻译：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

公开(公告)号：US07705178B2

公开(公告)日：2010-04-27

申请号：US11411192

申请日：2006-04-25

申请人： Sunder S. Rangachari , Todd C. Friedman , Sherrol Lee Baysdon , David Z. Becher

发明人： Sunder S. Rangachari , Todd C. Friedman , Sherrol Lee Baysdon , David Z. Becher

IPC分类号： C07F9/30

CPC分类号： B01D9/0036 , C07F9/3813

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.

摘要翻译： 提供了制备和结晶N-（膦酰基甲基）亚氨基二乙酸的改进方法。该方法包括向N-（膦酰基甲基）亚氨基二乙酸反应溶液中加入N-（膦酰基甲基）亚氨基二乙酸晶种。提供了结晶的N-（膦酰基甲基）亚氨基二乙酸的床，具有改善的渗透性和过滤速率以及减少的杂质。