CN115537822A - 一种复合清洗剂的制备方法及在清洗和除锈中的应用 - Google Patents
一种复合清洗剂的制备方法及在清洗和除锈中的应用 Download PDFInfo
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- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/04—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors
- C23G1/06—Cleaning or pickling metallic material with solutions or molten salts with acid solutions using inhibitors organic inhibitors
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- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
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Abstract
本发明涉及清洗剂技术领域,且公开了一种复合清洗剂的制备方法及在清洗和除锈中的应用,以1,4‑苯二甲胺和1,3‑丙烷磺内酯发生开环反应,准备了苯二甲胺二磺酸钠,然后与3‑(1‑咪唑基)丙酰氯和溴代烷烃发生酯化和季铵化反应,合成了新型磺酸咪唑盐表面活性剂,制备方法简便高效,反应条件温和。将磺酸咪唑盐表面活性剂与盐酸溶液、草酸溶液和乙二胺四乙酸二钠复配,得到具有除锈和缓释作用的复合清洗剂,对钢材等金属基材的表面起到很好的清洗和除锈作用,同时含有磺酸咪唑盐表面活性剂具有优异的缓蚀和防腐作用,有效抑制了金属基材在酸洗液中的腐蚀。
Description
技术领域
本发明涉及清洗剂技术领域,具体为一种复合清洗剂的制备方法及在清洗和除锈中的应用。
背景技术
铜、铁基等金属材料容易受到氧化和腐蚀,导致基材生锈而影响使用性能;清洗剂在金属基材的清洗、除锈、缓释方面有着重要的应用,因此开发新型高效的清洗剂,对金属基材进行除锈和缓释。
咪唑类缓蚀剂可以在金属材料表面形成保护层,减缓腐蚀速率,延长设备的使用寿命,在清洗剂、缓蚀剂等方面有着广阔的应用前景,文献《咪唑啉硫酸酯盐ISES的合成及缓蚀性能研究》、《咪唑啉硫酸酯盐两性表面活性剂用作缓蚀剂的研究》等文献报道了油酸N-(2-羟乙基)乙二胺为原料,氨基磺酸作为季铵化试剂,合成了咪唑啉硫酸酯盐两性表面活性剂,对碳钢材料有着很好的缓蚀和阻垢作用。《双烷基咪唑啉季铵盐阳离子表面活性剂在酸洗液中对碳钢缓蚀作用的研究》,报道了烷基咪唑啉季铵盐阳离子表面活性剂在盐酸酸洗液中对A3钢有着良好的缓蚀和抑雾性能。
发明内容
(一)解决的技术问题
针对现有技术的不足,本发明提供了一种复合清洗剂,解决了传统的清洗剂对金属基材的清洗、除锈和缓蚀作用较差的问题。
(二)技术方案
为实现上述目的,本发明提供以下技术方案:一种复合清洗剂,所述复合清洗剂包括100重量份的水,20-50重量份的盐酸溶液、30-40重量份的草酸溶液、2-6重量份的磺酸咪唑盐表面活性剂、3-5重量份的乙二胺四乙酸二钠。
优选的,所述复合清洗剂的制备方法为:依次将2-6重量份的磺酸咪唑盐表面活性剂、3-5重量份的乙二胺四乙酸二钠加入到100重量份的水中,然后滴加20-50重量份的1-5%的盐酸溶液、30-40重量份的1-4%的草酸溶液,搅拌均匀后得到具有清洗和除锈作用的复合清洗剂。
优选的,所述磺酸咪唑盐表面活性剂的制备方法为:
(1)将100重量份的1,4-苯二甲胺和180-260重量份的1,3-丙烷磺内酯溶解到反应溶剂中,然后滴加氢氧化钠溶液,升温至60-90 ℃反应6-12 h,反应后滴加减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲胺二磺酸钠。
(2)将的3-(1-咪唑基)丙酸和草酰氯溶解到乙腈溶剂中,加热回流反应得到3-(1-咪唑基)丙酰氯;然后将70-95重量份的3-(1-咪唑基)丙酰氯、100重量份的苯二甲胺二磺酸钠加入到二氯甲烷中,并滴加32-50重量份的N,N-二异丙基乙胺,在20-35 ℃反应18-36 h,减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲酰胺咪唑基二磺酸钠。
(3)将100重量份的苯二甲酰胺咪唑基二磺酸钠和50-90重量份的溴代烷烃溶解到N,N-二甲基甲酰胺中,升温至100-140 ℃反应24-72 h,反应后冷却,加入水和乙酸乙酯萃取分离,收集有机层干燥后,粗产物加入到乙醇中重结晶,得到磺酸咪唑盐表面活性剂。
优选的,所述(1)中反应溶剂包括丙酮、四氢呋喃、1,4-二氧六环。
优选的,所述(1)中氢氧化钠溶液的质量分数为3-6%。
(三)有益的技术效果
与现有技术相比,本发明具备以下有益技术效果:
以1,4-苯二甲胺和1,3-丙烷磺内酯发生开环反应,准备了苯二甲胺二磺酸钠,然后与3-(1-咪唑基)丙酰氯和溴代烷烃发生酯化和季铵化反应,合成了新型磺酸咪唑盐表面活性剂,制备方法简便高效,反应条件温和。
将磺酸咪唑盐表面活性剂与盐酸溶液、草酸溶液和乙二胺四乙酸二钠复配,得到具有除锈和缓释作用的复合清洗剂,对钢材等金属基材的表面起到很好的清洗和除锈作用,同时含有磺酸咪唑盐表面活性剂具有优异的缓蚀和防腐作用,有效抑制了金属基材在酸洗液中的腐蚀。
附图说明
图1是磺酸咪唑盐表面活性剂的制备路线图。
具体实施方式
实施例1
(1)将0.2 g的1,4-苯二甲胺和0.36 g的1,3-丙烷磺内酯溶解到10 mL的丙酮溶剂中,然后滴加2 mL的6%的氢氧化钠溶液,升温至80 ℃反应10 h,反应后滴加减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲胺二磺酸钠;;C14H22N2O6S2Na2;1H NMR (300MHz,CDCl3):δ7.30-7.12(m, 4H),3.72-3.40(m, 4H),3.35-3.20(t, 4H),2.63-2.41(m, 4H),2.16-1.92(m, 6H)。
(2)将0.5 g的3-(1-咪唑基)丙酸和3 g的草酰氯溶解到15 mL的乙腈溶剂中,加热回流反应得到3-(1-咪唑基)丙酰氯;然后将0.95 g的3-(1-咪唑基)丙酰氯、1 g的苯二甲胺二磺酸钠加入到10 mL的二氯甲烷中,并滴加0.32 g的N,N-二异丙基乙胺,在20 ℃反应24h,减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲酰胺咪唑基二磺酸钠;;C26H34N6O8S2Na2;1H NMR (300MHz,CDCl3):δ8.02-7.90 (m, 2H),7.40-7.33(m, 2H),7.20-7.06(m, 4H),6.70-6.52(m, 2H),4.92-4.71(m, 4H),4.22-4.10(m, 4H),3.55-3.23(m, 8H),2.68-2.51(m, 4H),2.19-2.07 (m,4H)。
(3)将0.5 g的苯二甲酰胺咪唑基二磺酸钠和0.25 g的溴己烷溶解到N,N-二甲基甲酰胺中,升温至140 ℃反应24h,反应后冷却,加入水和乙酸乙酯萃取分离,收集有机层干燥后,粗产物加入到乙醇中重结晶,得到磺酸咪唑盐表面活性剂;;C38H60N6O8S2Na2Br2;1H NMR (300MHz,CDCl3):δ8.90-8.75 (m, 2H),7.82-7.68 (m, 2H),7.26-7.11(m, 4H),6.66-6.50(m, 2H),4.97-4.76(m, 4H),4.70-4.56(m, 4H),4.21-4.10(m, 4H),3.50-3.25(m, 8H),2.67-2.48(m,4H),2.17-2.08(m, 4H),1.51-1.34 (m, 16H),0.96-0.85 (m, 6H)。
(4)依次将4 g的磺酸咪唑盐表面活性剂、1 g的乙二胺四乙酸二钠加入到200 mL的水中,然后滴加60 g的2%的盐酸溶液、70 g的1%的草酸溶液,搅拌均匀后得到具有清洗和除锈作用的复合清洗剂。
实施例2
(1)将0.2 g的1,4-苯二甲胺和0.45 g的1,3-丙烷磺内酯溶解到15 mL的1,4-二氧六环溶剂中,然后滴加2 mL的5%的氢氧化钠溶液,升温至80 ℃反应6 h,反应后滴加减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲胺二磺酸钠。
(2)将0.95 g的3-(1-咪唑基)丙酰氯、1 g的苯二甲胺二磺酸钠加入到10 mL的二氯甲烷中,并滴加0.32 g的N,N-二异丙基乙胺,在25 ℃反应36 h,减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲酰胺咪唑基二磺酸钠。
(3)将0.5 g的苯二甲酰胺咪唑基二磺酸钠和0.32 g的溴辛烷溶解到N,N-二甲基甲酰胺中,升温至140 ℃反应48 h,反应后冷却,加入水和乙酸乙酯萃取分离,收集有机层干燥后,粗产物加入到乙醇中重结晶,得到磺酸咪唑盐表面活性剂;;C42H68N6O8S2Na2Br2;1H NMR (300MHz,CDCl3):δ8.88-8.74 (m, 2H),7.80-7.68 (m, 2H),7.27-7.14(m, 4H),6.62-6.49 (m, 2H),4.92-4.75(m, 4H),4.72-4.57(m, 4H),4.20-4.11(m, 4H),3.45-3.22(m, 8H),2.69-2.47(m,4H),2.12-2.05(m, 4H),1.57-1.32 (m, 24H),0.97-0.87 (m, 6H)。
(4)依次将8 g的磺酸咪唑盐表面活性剂、2.5 g的乙二胺四乙酸二钠加入到200mL的水中,然后滴加40 g的5%的盐酸溶液、60 g的4%的草酸溶液,搅拌均匀后得到具有清洗和除锈作用的复合清洗剂。
实施例3
(1)将0.2 g的1,4-苯二甲胺和0.52 g的1,3-丙烷磺内酯溶解到15 mL的四氢呋喃溶剂中,然后滴加2 mL的6%的氢氧化钠溶液,升温至80 ℃反应6 h,反应后滴加减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲胺二磺酸钠。
(2)将0.85 g的3-(1-咪唑基)丙酰氯、1 g的苯二甲胺二磺酸钠加入到15 mL的二氯甲烷中,并滴加0.4 g的N,N-二异丙基乙胺,在35 ℃反应24 h,减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲酰胺咪唑基二磺酸钠。
(3)将0.5 g的苯二甲酰胺咪唑基二磺酸钠和0.38 g的溴癸烷溶解到N,N-二甲基甲酰胺中,升温至120 ℃反应72 h,反应后冷却,加入水和乙酸乙酯萃取分离,收集有机层干燥后,粗产物加入到乙醇中重结晶,得到磺酸咪唑盐表面活性剂;;C46H76N6O8S2Na2Br2;1H NMR (300MHz,CDCl3):δ8.89-8.70 (m, 2H),7.81-7.66 (m, 2H),7.26-7.12(m, 4H),6.60-6.45 (m, 2H),4.96-4.73(m, 4H),4.70-4.52(m, 4H),4.21-4.10(m, 4H),3.42-3.23(m, 8H),2.69-2.45(m,4H),2.16-2.06(m, 4H),1.57-1.32 (m, 32H),0.95-0.84 (m, 6H)。
(4)依次将10 g的磺酸咪唑盐表面活性剂、3 g的乙二胺四乙酸二钠加入到200 mL的水中,然后滴加80 g的2%的盐酸溶液、70 g的2%的草酸溶液,搅拌均匀后得到具有清洗和除锈作用的复合清洗剂。
实施例4
(1)将0.2 g的1,4-苯二甲胺和0.4 g的1,3-丙烷磺内酯溶解到15 mL的1,4-二氧六环溶剂中,然后滴加2 mL的6%的氢氧化钠溶液,升温至70 ℃反应12 h,反应后滴加减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲胺二磺酸钠。
(2)将0.9 g的3-(1-咪唑基)丙酰氯、1 g的苯二甲胺二磺酸钠加入到20 mL的二氯甲烷中,并滴加0.5 g的N,N-二异丙基乙胺,在30 ℃反应18 h,减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲酰胺咪唑基二磺酸钠。
(3)将0.5 g的苯二甲酰胺咪唑基二磺酸钠和0.45 g的溴代十二烷溶解到N,N-二甲基甲酰胺中,升温至120 ℃反应72 h,反应后冷却,加入水和乙酸乙酯萃取分离,收集有机层干燥后,粗产物加入到乙醇中重结晶,得到磺酸咪唑盐表面活性剂;;C50H84N6O8S2Na2Br2;1H NMR (300MHz,CDCl3):δ8.85-8.69 (m, 2H),7.83-49 (m, 4H),4.25-4.17(m, 4H),3.42-3.21(m, 8H),2.72-2.50(m, 4H),2.22-2.07(m, 4H),1.58-1.29 (m, 40H),0.94-0.84 (m, 6H)。
(4)依次将12 g的磺酸咪唑盐表面活性剂、1.8 g的乙二胺四乙酸二钠加入到200mL的水中,然后滴加100 g的3%的盐酸溶液、80 g的1%的草酸溶液,搅拌均匀后得到具有清洗和除锈作用的复合清洗剂。
采用锈蚀程度为D级的Q235钢(100 mm×100 mm×2 mm)作为实验对象,将Q235钢浸泡在500 mL的复合清洗剂中,在25 ℃下测试复合清洗剂的除锈性能,除锈速率=(M0-M)/(S×t),M0为除锈前质量,M为除锈后质量,S为钢板面积的表面积,t为除锈时间。
实施例1 | 实施例2 | 实施例3 | 实施例4 | |
除锈速率(g/m<sup>2</sup>·h) | 62.4 | 79.2 | 70.1 | 51.6 |
静态失重法测定缓蚀率:将Q235钢经过打磨、清洗处理(50 mm×50 mm×2 mm),然后至于浓度为200 mL的5%的盐酸溶液中,加入20 mL的复合清洗剂,不加复合清洗剂作为对照组,浸泡2 h,采 用静态失重法,在25 ℃下测试复合清洗剂对Q235钢的缓释率。
实施例1 | 实施例2 | 实施例3 | 实施例4 | |
缓蚀率(%) | 84.2 | 80.1 | 92.4 | 73.6 |
缓蚀率=(M1-M2)/M1×100%。M1为不加缓释剂Q235钢的失重量,M2为加入缓释剂Q235钢的失重量。
Claims (6)
1.一种复合清洗剂,其特征在于:所述复合清洗剂包括100重量份的水,20-50重量份的盐酸溶液、30-40重量份的草酸溶液、2-6重量份的磺酸咪唑盐表面活性剂、3-5重量份的乙二胺四乙酸二钠。
2.一种如权利要求1所述的复合清洗剂的制备方法,其特征在于:所述复合清洗剂的制备方法为:依次将2-6重量份的磺酸咪唑盐表面活性剂、3-5重量份的乙二胺四乙酸二钠加入到100重量份的水中,然后滴加20-50重量份的1-5%的盐酸溶液、30-40重量份的1-4%的草酸溶液,搅拌均匀后得到具有清洗和除锈作用的复合清洗剂。
3.根据权利要求1所述的一种复合清洗剂的制备方法,其特征在于:所述磺酸咪唑盐表面活性剂的制备方法为:
(1)将100重量份的1,4-苯二甲胺和180-260重量份的1,3-丙烷磺内酯溶解到反应溶剂中,然后滴加氢氧化钠溶液,升温至60-90 ℃反应6-12 h,反应后滴加减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲胺二磺酸钠;
(2)将的3-(1-咪唑基)丙酸和草酰氯溶解到乙腈溶剂中,加热回流反应得到3-(1-咪唑基)丙酰氯;然后将70-95重量份的3-(1-咪唑基)丙酰氯、100重量份的苯二甲胺二磺酸钠加入到二氯甲烷中,并滴加32-50重量份的N,N-二异丙基乙胺,在20-35 ℃反应18-36 h,减压浓缩除去溶剂,粗产物在乙醇中重结晶,得到苯二甲酰胺咪唑基二磺酸钠;
(3)将100重量份的苯二甲酰胺咪唑基二磺酸钠和50-90重量份的溴代烷烃溶解到N,N-二甲基甲酰胺中,升温至100-140 ℃反应24-72 h,反应后冷却,加入水和乙酸乙酯萃取分离,收集有机层干燥后,粗产物加入到乙醇中重结晶,得到磺酸咪唑盐表面活性剂。
4.根据权利要求1所述的一种复合清洗剂的制备方法,其特征在于:所述(1)中反应溶剂包括丙酮、四氢呋喃、1,4-二氧六环。
5.根据权利要求1所述的一种复合清洗剂的制备方法,其特征在于:所述(1)中氢氧化钠溶液的质量分数为3-6%。
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