Method for treating production wastewater from the preparation of propylene oxide by co-oxidation
US11746033B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Dec 19, 2019 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Dec 19, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2301/046
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method for treating production wastewater from the preparation of propylene oxide by co-oxidation. The wastewater includes a first portion of wastewater having a peroxide content of 2000 mg/L or more and a second portion of wastewater having a peroxide content of 50 mg/L or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.