Recovery of phosphorus values and salt impurities from aqueous waste streams
US9394173B2 · kind B2 · utility
0Cited by
29References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2014 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Jan 21, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/52
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention generally relates to processes for recovery of phosphorus values and salt impurities from aqueous waste streams. In particular, the present invention relates to processes for recovery of phosphorus values and salt impurities from aqueous waste streams generated in the manufacture of phospho-herbicides, including N-(phosphonomethyl)glycine and glufosinate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.