Process for preparing N-phosphonomethyliminodiacetic acid
AssigneeMonsanto Company
InventorsSherrol Lee Baysdon, David Lee Taxter
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Abstract
A process for the preparation of N-phosphonomethyliminodiacetic acid is disclosed. The process comprises simultaneously infusing into a reaction mixture water, a source of iminodiacetic acid, a source of formaldehyde, and a source of phosphorous acid and strong acid.
Claims23
A process for preparing N-phosphonomethyliminodiacetic acid comprising combining in a reaction mixture water, a source of iminodiacetic acid, a source of formaldehyde, and a phosphorus trihalide wherein the source of formaldehyde and the phosphorus trihalide are simultaneously infused into the reaction mixture, to form said N-phosphonomethyliminodiacetic acid.
A process for preparing N-phosphonomethyliminodiacetic Acid comprising combining in a reaction mixture water, a source of iminodiacetic acid, a source of formaldehyde, a source of phosphorous acid and a source of strong acid wherein the source of formaldehyde and the source of phosphorous acid are simultaneously infused into file reaction mixture, to form said N-phosphonomethyliminodiacetic Acid.
Dependencies are inferred from the claim text.