Method for decalcification of an aqueous solution, in particular of lactoserum or of an utrafiltration permeate lactoserum
US8501252B2 · kind B2 · utility
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5References
18Claims
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Key dates
| Filing date | Aug 25, 2003 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Nov 18, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA23C9/146
- WIPO fieldFood chemistry
- WIPO sectorChemistry
Abstract
A method is provided for decalcification of an aqueous solution that has multivalent Ca2+ and Mg2+ cations and anions able to form complexes with at least a part of the multivalent cations. The method includes replacing at least part of the anions to form complexes of the aqueous solution by monovalent anions such as Cl−, non-able to form such complexes. The method also replaces at least a part of the multivalent cations of the aqueous solution by monovalent metal cations such as Na+ and/or K+. This later replacement step is performed simultaneously with or after the first replacement step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.