Extrusion process for the preparation of alkali metal carbonate, bicarbonate and sesquicarbonate formulations using a dissolved functionalizing agent
US12103858B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2017 |
| Grant date | Oct 1, 2024 |
| Priority date | — |
| Expiry date | Dec 22, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2003/262
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a formulation comprising an alkali metal salt selected from the group consisting of alkali metal bicarbonate salts, alkali metal carbonate salts, alkali metal sesquicarbonate salts and combinations thereof, wherein said process includes: (a) dissolving a functionalizing agent in a solvent; (b) mixing the alkali metal salt with the solution comprising the functionalizing agent that a paste-like composition is formed; (c) extruding the paste-like composition to obtain filaments or granules; (d) at least partially removing the solvent from the filaments or granules. A powder, filaments and granules are obtainable from said process and may be used in various applications such as in plastic foaming or in food and feed leavening compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.