用超生波辅助浸提法从银杏叶中提取有机缓蚀组分,并将其作为饱和二氧化碳盐水溶液中缓蚀剂的主要成分.对以银杏叶浸泡提取物为主的复合缓蚀剂的缓蚀效果进行了研究,实验表明:银杏叶提取物的缓蚀率最高可达84.7%,与硫脲复配后缓蚀率最高达到94.7%.电化学研究表明:银杏叶提取液与硫脲复配的缓蚀剂为混合型缓蚀剂.
The active ingredients of ginkgo leaves were extracted by ultrasonic-assisted extraction.The inhibition effect of ginkgo leaves extract(QLE)on carbon steel corrosion in NaCl solution saturated with CO2 was studied.Experimental results showed that QLE is a good corrosion inhibitor with maximum inhibition efficiency up to 84.7% and to 94.7% when combined with thiourea.Polarization curves reveal that QLE combined with thiourea behaves like a mixed-type corrosion inhibitor.
[1] 李建忠,王海成,李宁.油气田开发中二氧化碳腐蚀的危害与研究现状[J].广州化工,2011(21):21-23. LI Jianzhong,WANG Haicheng,LI Ning.The hazards and research status of carbon dioxide corrosion in oil and gas[J].Guangzhou Chemical Industry,2011(21):21-23.
[2] 羊东明,李亚光,张江江,等.大涝坝气田油管腐蚀原因分析及治理对策[J].石油钻探技术,2011(05):82-85.DOI:10.3969/j.issn.1001-1089.211.05.018. YANG Dongming,LI Yaguang,ZHANG Jiangjiang,et al.Tubing corrosion analysis and control measures in dalaoba gas field[J].Petroleum Drilling Techniques,2011(05):82-85.DOI:10.3969/j.issn.1001-1089.211.05.018.
[3] 王晓博,俞宏英,关望,等.X52钢在普光气田服役条件下的CO2腐蚀行为[J].材料工程,2014(8):72-78.DOI:10.11868/j.issn.1001 4381.2014.08.014 WANG Xiaobo,YU Hongying,GUAN Wang,et al.CO2 Corrosion behavior of service of puguang gas X52 steel in conditions field[J].Journal of Materials engineering,2014(8):72-78.DOI:10.11868/j.issn.1001 4381.2014.08.014.
[4] 仇朝军,刘旭文,卢新鹏,等.渤海某高含二氧化碳油气田海管腐蚀研究[J].全面腐蚀控制,2012(04):22-25. QIU Zhaojun,LIU Xuwen,LU Xinpeng,et al.The corrosion research which contained higher carbon dioxide of bohao oil field[J].Total Corrosion Comtrol,2012(04):22-25.
[5] 李自力,程远鹏,毕海胜,等.油气田 CO2/H2S共存腐蚀与缓蚀技术研究进展[J].化工学报,2014,65(2):406-414.DOI:10.3969/j.issn.0438-1157.2014.02.006. LI Zili,CHENG Yuanpeng,BI Haisheng,et al.Research progress of CO2/H2S corrosion and inhibitor techniques in oil and gas fields[J].CIESC Journal,2014,65(2):406-414.DOI:10.3969/j.issn.0438-1157.2014.02.006.
[6] 张万友,陈月芳,李洵.复配型绿色植物缓蚀剂对盐酸溶液中A3钢的缓蚀作用[J].华北电力技术,2002(01):9-11. ZHANG Wanyou,CHEN Yuefang,LI Xue.Ihibitive effiect of some natural-occuring substance on dossolution of A3 steel in HCl solution[J].North China Electric Power,2002(01):9-1.
[7] 郑兴文,龚敏,邹振,等.竹叶提取液的制备及其缓蚀性能[J].材料保护,2010(02):21-23.
[8] 邓书端,李向红,付惠.金竹叶提取物的缓蚀性能研究[J].林产化学与工业,2010(05):81-86. DENG Shuduan,LI Xianghong,FU Hui.Study on coffosion inhibition performance of phyllostachys sulphurea leaves extract[J].Chemistry and Industry of Forest Products,2010(05):81-86.
[9] El-ETRE A Y.Inhibition of C-steel corrosion in acidic solution using the aqueous extract of zallou root[J].Materials Chemistry and Physics,2008,108:278-282.
[10] 周晓荣,田径,姚小虎,等.薄荷叶缓蚀剂对热轧碳钢的缓蚀作用[J].材料保护,2014,47(3):16-19.
[11] 徐守霞.银杏叶中黄酮类化合物的提取工艺研究[J].安徽农业科学,2012(02):706-707.DOI:10.3969/j.issn.0517-6611.2012.02.029. XU Shouxia.Study on the extraction technoligy of flavonoids from G.biloba leaves[J].Journal of Anhui Agricultural Sciences,2012(02):706-707.DOI:10.3969/j.issn.0517-6611.2012.02.029.
[12] 朱兴一,谢捷,忙怡丽,等.微波辅助提取银杏叶萜类内酯的工艺研究[J].高校化学工程学报,2009(06):1080-1083.DOI:10.3321/j.issn:1003-9015.2009.06.030. ZHU Xingyi.XIE Jie,MANG Yili,et al.Study on microwave-assisted extraction of terpene lactones from ginkgo biloba L[J].Journal of Chemical Engineering of Chinese Universities,2009(06):1080-1083.DOI:10.3321/j.issn:1003-9015.2009.06.030.
