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PROCESS FOR REDUCING THE LEVELS OF NITRITE CONTAMINANTS IN AMINE OXIDE SURFACTANTS
PROCESS FOR REDUCING THE LEVELS OF NITRITE CONTAMINANTS IN AMINE OXIDE SURFACTANTS
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机译:减少氧化胺表面活性剂中亚硝酸盐含量的方法
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摘要
Amine oxide surfactants contaminated with nitrite are treated under acidic conditions with materials such as maleic acid and diethylenetriaminepentaacetate (DTPA) to reduce nitrite levels below 1 ppm. Thus, C12-13 dimethyl amine is oxidized with hydrogen peroxide in the presence of maleic acid and DTPA to reduce nitrite levels. The resulting nitrite-free amine oxide is employed in various detergent compositions.
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