Evaluating the foamability of a solution using a vibrational viscometer
US12313511B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2023 |
| Grant date | May 27, 2025 |
| Priority date | — |
| Expiry date | Jan 10, 2044 |
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 fitted 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.