| 摘要 |
Disclosed is a method of minimizing the diameter of droplets of a urea solution while spraying by use of a surfactant, characterised in that a mixture of non-ionic surfactants containing a proportion of 10 - 40 weight percent of low alkoxylated compounds with a degree of alkoxylation from 2 to 5 and a proportion of 60 - 90 weight percent of high alkoxylated compounds with a degree of alkoxylation from 8 to 20, is added to the urea solution where the mixture of surfactants is formed from one or more species independently selected from the list consisting of fatty alcohol ethylene oxide adducts, fatty amine ethylene oxide adducts ethoxylated alkyl phenols. Also disclosed is the mixture of non-ionic surfactants containing a proportion of 10 - 40 weight percent of low alkoxylated compounds with a degree of alkoxylation from 2 to 5 and a proportion of 60 - 90 weight percent of high alkoxylated compounds with a degree of alkoxylation from 8 to 20. |
