申请人:Huntsman Petrochemical LLC
公开号:US10264785B2
公开(公告)日:2019-04-23
New stabilizers for solutions of choline hydroxide and related quaternary trialkylalkanolamines are disclosed. The stabilizers are alkyl hydroxylamines, hydrazines, hydrazides, or derivates thereof, including compounds containing more than one such functionality. The new stabilizers are effective at concentrations less than about 1000 ppm, and choline hydroxide solutions stabilized with the compounds described herein typically have Gardner Color change less than about 2.0 after six months at reasonable temperatures.
本发明公开了用于氢氧化胆碱和相关季烷基三烷醇胺溶液的新型稳定剂。这些稳定剂是烷基羟胺、肼、酰肼或其衍生物,包括含有一个以上此类官能团的化合物。新稳定剂在浓度小于约 1000 ppm 时有效,用本文所述化合物稳定的氢氧化胆碱溶液在合理温度下 6 个月后的 Gardner Color 变化通常小于约 2.0。