If the nitroethane containing products I've come across are anything to go by, the glycol ether compound(methoxy-2-propanol or phenoxyethanol usually)
is only present in minute concentration, 2-5%.
It seems like any potential separation process will be either tedious or complicated. I've only had a bit of experience with nitro compounds but I'd
suspect both hydrogenation/reduction to amino, and henry reaction would tolerate the impurity.
Possibly isn't worth the effort unless it's proven necessary for whatever the intended use.
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