Process for producing N-phosphonomethyl glycine
US3950402A · kind A · utility
73Cited by
3References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1973 |
| Grant date | Apr 13, 1976 |
| Priority date | — |
| Expiry date | Feb 16, 1993 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/3813
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
N-phosphonomethyl glycine is produced by the oxidation of N-(phosphonomethyl) iminodiacetic acid. N-(Phosphonomethyl) iminodiacetic acid is heated to an elevated temperature in an aqueous medium and an oxidizing agent (H.sub.2 O.sub.2, air plus a catalyst such as platinum, palladium, rhodium, etc.) added to oxidize the N-(phosphonomethyl) iminodiacetic acid to N-phosphonomethyl glycine, which is recovered by crystallization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.