Back to results
US 10,499,647 B2Granted
Use of an encapsulated chlorine bleach particle to reduce gas evolution during dispensing
AssigneeEcolab USA Inc.
InventorsJonathan P. Fast, John Nordling
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to use of an encapsulated chlorine bleach to reduce gas evolution when reacted with sodium bromide during dispensing. The compositions include a coated chlorine combined with the sodium bromide which beneficially suppresses the chemical reaction, and therefore gas release, while providing a single, solid, all-in-one composition. Compositions, methods of dispensing and methods of use are disclosed.
Claims13
A method of dispensing a biocidal composition comprising:
- providing a solid biocide composition to an external dispenser, wherein the composition comprises from about 70 wt-% to about 99 wt-% of a coated chlorine and from about 1 wt-% to about 30 wt-% of a bromide salt;
- intermittently contacting a water source onto the solid biocide composition through the external dispenser, initiating a reaction between the water source, coated chlorine, and bromide salt at a wet interface on the solid biocide composition;
- and
- generating an aqueous biocide solution of hypobromous acid and/or hypobromite from the reaction, wherein the aqueous biocide solution carries bromine gas generated by the solid biocide composition into a fluid delivery system, and
- wherein the coated chlorine is chloroisocyanurate or chloroisocyanuric acid, trichloroisocyanuric acid, dichloroisocyanuric acid or salt thereof, coated by a sulfate, tripolyphosphate, or combination thereof, and reduces the concentration of bromine gas generated from the solid biocide composition in the presence of residual water in the external dispenser when the water source is not contacting the solid biocide.
2 more elements
Dependencies are inferred from the claim text.