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Peroxycarboxylic acid compositions containing mineral acids for stabilization, anionic surfactants for defoaming, and fluorescent active compounds for inline optical or conductivity monitoring

A technology of peroxycarboxylic acid and composition, applied in the field of peroxycarboxylic acid composition

Active Publication Date: 2015-12-23
ECOLAB USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, devices and methods used in the past to determine the concentration of both peracids and hydrogen peroxide are only effective over a narrow concentration range

Method used

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  • Peroxycarboxylic acid compositions containing mineral acids for stabilization, anionic surfactants for defoaming, and fluorescent active compounds for inline optical or conductivity monitoring
  • Peroxycarboxylic acid compositions containing mineral acids for stabilization, anionic surfactants for defoaming, and fluorescent active compounds for inline optical or conductivity monitoring
  • Peroxycarboxylic acid compositions containing mineral acids for stabilization, anionic surfactants for defoaming, and fluorescent active compounds for inline optical or conductivity monitoring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0287] Self-accelerating decomposition test. As used herein, SADT refers to the lowest temperature at which self-accelerating decomposition can occur with a peracid composition. In some embodiments, SADT refers to the lowest temperature at which self-accelerating decomposition can occur under commercial packaging, storage, shipping and / or use conditions. SADT can be estimated, calculated, predicted and / or measured by any suitable method. For example, SADT can be carried out by one of the three methods (H1, H2 and H4) recommended by the United Nations Committee on the Transport of Dangerous Goods in "Recommendations on the Transport of Dangerous Goods, Model Regulations" (Rev.17) ST / SG / AC.10 / 1 / Rev.17. Estimate or measure directly. For example the method disclosed in Malow and Wehrstedt, J. Hazard Mater., 120(1-3):21-4 (2005), which is hereby incorporated by reference in its entirety, can be used.

[0288] The full test protocol used in this example is available in "Recommend...

Embodiment 2

[0295] The method of Example 1 was further used to analyze the SADT of a fatty peracid (a peroxyoctanoic acid composition) with an even further increased acidity. Although the formulations are identical except for their stabilizers, the results shown in Table 5 again show the advantages of DPA stabilization in a high acid environment extending to fatty peracids such as peroxyoctanoic acid.

[0296] table 5

[0297]

[0298] figure 2 The SADT formed by the evaluated formulations is shown. The DPA-stabilized peracid composition showed a significantly more gradual temperature rise (below the SADT of the peracid) than the phosphate / HEDP-stabilized peracid composition, even at increasing acidity of the peracid composition. ). The DPA-stabilized peracid composition will likely meet DOT standards for shipping since its temperature will likely not exceed 56°C when projected to 7 days from 48°C.

Embodiment 3

[0300] As described in Table 6 (and image 3 shown), strong acids containing reduced concentrations of hydrogen peroxide were evaluated by the H4-SADT protocol in Dewars simulating 300 gallon IBCs or plastic totes.

[0301] Table 6

[0302] combination

[0303] A stability evaluation of the composition was performed and the composition containing the DPA stabilizer was stable despite the presence of -17% sulfuric acid. Such as image 3 As shown, the stabilization of the composition showed a stabilization of the solution temperature by only 4.7°C above the ambient temperature of 50°C on day 7. Beneficially, these results allow the highly acidic peracid composition to be transported and stored in a 300 gallon tote without refrigeration, demonstrating the apparent instability relative to an equivalent peracid composition containing HEDP Improve.

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Abstract

Highly acidic, stabilized and low foaming peroxycarboxylic acid compositions are disclosed as having both improved antimicrobial efficacy in comparison to conventional peroxyoctanoic acid and peroxyacetic acid compositions for sanitizing applications, and improved transport and shipping stability. Peroxycarboxylic acid sanitizing compositions containing a peroxycarboxylic acid stable fluorescent active compound suitable for monitoring by conductivity and / or optical sensors are disclosed. Beneficially, the sanitizing peroxycarboxylic acid compositions are also low odor and low / no VOC dual functioning acid wash and sanitizing compositions.

Description

[0001] Cross-Referenced Related Applications [0002] 本申请要求下面的申请在35U.S.C.§119下的优先权:美国申请系列No.13 / 785044(2981US01),标题为“EfficientStabilizerinControllingSelfAcceleratedDecompositionTemperatureofPeroxycarboxylicAcidCompositionswithMineralAcids,”;13 / 785047(2982US01),标题为“ADefoamerUsefulInAPeracidCompositionWithAnionicSurfactants”,和 13 / 785405 (3103US01), titled "PeroxycarboxylicAcidCompositionsSuitableForInlineOpticalOrConductivityMonitoring,"; each filed March 5, 2013. The entire contents of these patent applications are hereby expressly incorporated by reference, including but not limited to the specification, claims and abstract, as well as any figures, tables or drawings therein. field of invention [0003] The present invention relates to peroxycarboxylic acid compositions according to the invention which are susceptible to exothermic decomposition which are stable under highly acidic conditions (eg high mineral acid levels) to provide improved transport and / or storage. The presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L2/16
CPCA01N37/16A01N59/00A01N25/00A01N25/22A01N25/30
Inventor 李俊忠D·D·麦克谢里A·布鲁斯特R·斯特劳布
Owner ECOLAB USA INC
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