摘要
合成了一种复合缓蚀剂YHX-4,研究了其在二氧化碳/硫化氢共存条件下的缓蚀性能。研究表明,在n(油酸)∶n(二乙烯三胺)∶n(硫脲)∶n(氯化苄)=1∶1.4∶1∶1.2、成环反应最高温度220℃、成环时间8h;季铵化反应温度90℃、时间3h条件下可合成咪唑啉季铵盐缓蚀剂YHX-3,目标产物经红外表征。将YHX-3与自制的4种物质:炔氧甲基烷基苄基季铵盐(HPOMAQ)、丁炔二醇(BOZ)、磷酸三乙酯(TEP)、增效剂SA进行复配[m(YHX-3)∶m(BOZ)∶m(HPOMAQ)∶m(TEP)∶m(SA)=30∶8∶8∶3∶1]得缓蚀剂YHX-4,其在二氧化碳/硫化氢共存的腐蚀介质中静态缓蚀率大于92%,动态缓腐蚀率大于88%。
Compound YHX-4 was prepared and its corrosion inhibition properties were studied under the CO2/ H2S coexistence conditions. Results quaternary-ammonium-salts corrosion （thiourea） ：n （benzylchloride）= 1 ： 1.4 of 220℃, and then quaternized for 3 h Corrosion inhibitor YHX-4 was then indicated that the optimum conditions for synthesizing imidazoline inhibitor （YHX-3） were： n （oleic acid） ： n （diethylenetriamine） ： n ： 1 ： 1.2, the cyclization reaction lasted for 8 h at the highest temperature at 90℃. The structure of the product was proved with infrared spectrum. composed of YHX-3 and other four self-made substances including HPOMAQ, BOZ, TEP and SA [m（YHX-3） ：m（BOZ） ：m（HPOMAQ） ：m（TEP） ：m（SA）=30 ：8 ：8 ：3 ：1]. The efficiencies of its static and dynamic corrosion inhibition in the CO2/H2S medium were more than 92% and 88%, respectively.
出处
《精细化工中间体》
CAS
2009年第4期39-43,共5页
Fine Chemical Intermediates
关键词
咪唑啉季铵盐
缓蚀剂
缓蚀率
合成
imidazoline quaternary-ammonium-sah
corrosion inhibitor
corrosion efficiency
synthesis
