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US 2002/0001627 A1Published application
Method for giving a fluid coolant a biocidal property
AssigneeSiemens Aktiengesellschaft
InventorsUlrich Nerreter, Meike Pielach
Life of this patent
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Abstract
In a method for giving a biocidal property to a coolant in a fluid cooling circulation, the fluid cooling circulation has at least one device that exhibits at least one metal oxide that is in contact with the coolant, the coolant has a substance added to it that causes an acidic pH value of the coolant, at least for a time, and as a result of the acidic pH value of the coolant, metal ions are released from the metal oxide, these metal ions giving the coolant the biocidal property.
Claims7
A method for giving a biocidal property to a fluid coolant in a cooling circulation, comprising the steps of:
- circulating a fluid coolant in a fluid coolant circulation;
- adding a pH-altering substance to said coolant to at least temporarily give said fluid coolant an acidic pH value;
- and
- conducting said fluid coolant in said circulation through at least one device having a metal oxide in contact with said fluid coolant so that, due to said acidic pH value of said fluid coolant, metal ions are released from said metal oxide to give said fluid coolant a biocidal property.
1 more element
Dependencies are inferred from the claim text.