Water hardness stabilization with anion exchanger
AssigneeAquis Wasser-Luft-Systeme GmbH, Lindau Zweigniederlassung Rebstein
InventorBernd HEITELE
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Abstract
The invention relates to a solid dosing agent for dosing phosphate and/or polyphosphate in water. This is characterized by the provision of a water-insoluble anion exchanger that is at least partially loaded with orthophosphate and/or polyphosphate counterions. This achieves both long-lasting stable storage of the polyphosphate and good dosing of polyphosphate in water.
Claims20
A solid dosing composition for dosing phosphate and/or polyphosphate in water comprising a water-insoluble anion exchanger containing orthophosphate and/or polyphosphate counterions.
A process for producing a solid dosing composition for dosing phosphate and/or polyphosphate in water comprising forming a water-insoluble anion exchanger having orthophosphate and/or polyphosphate counterions by first using a liquid polyphosphate solution as starting material for loading water insoluble anion exchanger.
The use of the product of the process of claim 15 for stabilizing water hardness.
The use of the product of the process of claim 15 in a water filter device.
The use of the product of the process of claim 15 in a water tank of an appliance.
The use of the product of the process of claim 15 to prevent deposits from forming on surfaces in a water tank that come into contact with water.
The use of the product of the process of claim 15 in a water filter device for a mains-fitted water filter device.
A stable storable water-insoluble anion exchanger composition with a controlled polyphosphate release in water comprising a water insoluble anion resin, a phosphate or a polyphosphate and an orthophosphate and/or polyphate counterions.
Dependencies are inferred from the claim text.