Patent ID: 11884560
Assignee: ROBERT BOSCH GMBH
Field: Environmental technology (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A conversion electrode for a water softening device, comprising:
a conversion material having a first composition and a second composition coexisting with the first composition, the first composition including calcium ions bonded thereto and the second composition including sodium ions bonded thereto,
wherein the conversion material is configured to be at least partially immersed in a water solution and undergo a reversible conversion reaction in which (i) the first composition exchanges the bonded calcium ions for free sodium ions in the water solution and converts to the second composition in a first condition of the conversion electrode and (ii) the second composition exchanges the bonded sodium ions for free calcium ions in the water solution and converts to the first composition in a second condition of the conversion electrode, and
wherein the first composition includes at least 10 percent by weight of a compound represented by the formula CaMgxMOy and the second composition includes at least 10 percent by weight of a compound rrepresented by the formula NaMgxMOy, where x, y, and M have the values in any one row of the following table:, x
y
M

30
32
Fe

14
16
Mn

6
8
Mn.