三乙胺路线合成亚磷酸三甲酯过程中,产生的废水含氯化钠高达22%以上。因而要回收作为电解食盐的原料。这种盐水要求含NH_4~+为4ppm,因此三乙胺的含量应在24ppm以下,但测定废水中微量叔胺的文献中,绝大部份是将有机溶剂萃取后再比色。三乙胺的稀溶液比较难于萃取到有机溶剂中,因此达不到1ppm级别的测定。 Triethylamine route Synthesis of trimethyl phosphite, the wastewater produced by sodium chloride up to 22%. Thus to be recovered as electrolysis salt raw materials. This brine requires 4ppm NH_4 ~ +, so triethylamine content should be below 24ppm, but the determination of trace amounts of tertiary amine wastewater literature, the vast majority of the organic solvent extraction and then colorimetric. The dilute solution of triethylamine is more difficult to extract into organic solvents and therefore does not reach the 1 ppm level.