Use of extended surfactants in process membrane cleaning
US11291958B2 · kind B2 · utility
1Cited by
8References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2018 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Jan 20, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2321/168
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed are membrane separation cleaning processes and clean in place compositions for such membranes. The cleaning compositions can remove proteins, fats, and other food, beverage, and brewery based soils and offer an environmentally friendly alternative surfactant system to NPE. Branched extended chain PO/EO nonionic surfactants with certain characteristics may be used to provide superior cleaning to membranes. The specific surfactants may be used alone or in combination. In some embodiments, the surfactant package is used as part of a cleaning composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.