Phosphorus control for waste streams from glyphosate manufacturing processes
US11279644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2018 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Sep 9, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/185
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
This invention relates to processes for the removal of phosphorous from aqueous waste streams comprising phosphorous-containing compounds produced in the manufacture of glyphosate, in order to meet and typically exceed environmental regulations. More particularly, various embodiments of the present invention relate to the removal of phosphorous-containing compounds utilizing biological treatment system(s), oxidizing agent(s), and/or precipitant(s). The processes of the invention are also applicable to the removal of phosphorous compounds from phosphorous-containing waste streams other than those waste streams resulting from the manufacture of glyphosate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.