Hydrogen peroxide purification process and hydrogen peroxide
US10822235B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2015 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | May 25, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2311/2626
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A hydrogen peroxide purification process, including supplying a starting stream containing hydrogen peroxide at a content above 50 wt %, as well as at least one stabilizer; a single step of purification of the starting stream, the single step having purification by reverse osmosis; collecting a purified stream at the end of said single purification step, in which purification by reverse osmosis includes: passing the starting stream over a first membrane; collecting a permeate and a retentate from the first membrane; passing the permeate from the first membrane over a second membrane; collecting a permeate and a retentate from the second membrane, the purified stream having the permeate from the second membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.