USE OF A UREA COMPOSITION TO PRODUCE DIESEL EXHAUST FLUID (AUS 32)
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United States of America Patent
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Sep 26, 2019
app pub date -
Jul 13, 2017
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Jul 15, 2016
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Abstract
A process for producing a NOx reductant AUS 32 solution (diesel exhaust fluid), including at least the mixing of water and a particulate composition including (i) urea and an additive comprising component (ii). The additive component is a combination of at least one polymer or oligomer containing amino groups and at least one functionalized polyvinyl compound, wherein the proportion by weight of component (i) in the particulate composition is >60% by weight and the proportion by weight of component (ii) in the particulate composition is <1% by weight and wherein a urea solution is obtained and the proportion by weight of component (i) in the urea solution obtained is between 31% by weight and 34% by weight.
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