Method for evaluating foamability with a fritted test apparatus
US12379295B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2025 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Apr 22, 2045 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2013/025
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for evaluating the foamability of a test solution. The method includes forming foam in a vertical measurement column including an open top end and a fritted plate proximal to a bottom end by passing a gas stream through the fritted plate and through the test solution present in the vertical measurement column at a gas volume rate (GVR) and a gas flow rate (GFR). The foam travels upwards in the vertical measurement column while the gas stream is passing through the test solution. The method further includes measuring the viscosity of the foam with a vibration viscometer disposed proximal to the top end of the vertical measurement column, and further recording a plurality of vibration viscometer measurement results and storing the results (a surfactant amount Csurf, the GVR, and the GFR) in memory to determine one or more foam properties of the test solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.