Invention Grant
US07705178B2 Altering the crystal size distribution of N-(phosphonomethyl) iminodiacetic acid for improved filtration and product quality
有权
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
- Patent Title: Altering the crystal size distribution of N-(phosphonomethyl) iminodiacetic acid for improved filtration and product quality
- Patent Title (中): 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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Application No.: US11411192Application Date: 2006-04-25
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Publication No.: US07705178B2Publication Date: 2010-04-27
- Inventor: Sunder S. Rangachari , Todd C. Friedman , Sherrol Lee Baysdon , David Z. Becher
- Applicant: Sunder S. Rangachari , Todd C. Friedman , Sherrol Lee Baysdon , David Z. Becher
- Applicant Address: US MO St. Louis
- Assignee: Monsanto Technology LLC
- Current Assignee: Monsanto Technology LLC
- Current Assignee Address: US MO St. Louis
- Agency: Senniger Powers LLP
- Agent Joseph A. Schaper
- Main IPC: C07F9/30
- IPC: C07F9/30
Abstract:
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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