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METHOD OF OBTAINMENT OF BASES FOR CORROSION INHIBITORS OF PROLONGED ACTION FOR PROCESS EQUIPMENT PROTECTION (VERSIONS)

机译:获得过程设备保护的长期作用的缓蚀剂基础的方法(版本)

摘要

FIELD: metallurgy.;SUBSTANCE: invention refers to corrosion protection for metals, namely methods of obtaining polymer bases for compositions ensuring reliable protection in media containing dissolved hydrogen sulphide or carbon dioxide showing high sorption activity towards metal surfaces, and can be applied in oil production and processing industries for process equipment protection. Method involves condensation of alkoxylated tall fatty amine obtained by reaction of tall fatty amine with ethylene or propylene oxide, with anhydride of a dibasic acid from the range including: malonic acid, succinic acid, glutaric acid, maleic acid, sebacic acid, ortho-phthalic acid, at the following component ratio, wt %: tall fatty amine 40-65; ethylene or propylene oxide 15-33; the rest is anhydride of dibasic organic acid; obtained preproduct of equimolar opening of dibasic organic acid anhydride is added to excessive alkoxylated tall fatty amine at the molar ratio of alkoxylated tall fatty amine to the said product equal to 3: 2, obtaining a base for corrosion inhibitor in the form of an oligomerous product. In the second variant, the method is implemented in the presence of a base catalyst.;EFFECT: obtainment of corrosion inhibitors of prolonged action by a convenient method out of non-toxic raw materials.;2 cl, 1 tbl, 15 ex
机译:领域:冶金学;本发明涉及金属的腐蚀防护,即获得用于确保在包含溶解的硫化氢或二氧化碳的介质中对金属表面表现出高吸附活性的介质中进行可靠保护的组合物的聚合物基础的方法,并且可以用于石油生产中和加工业用于过程设备保护。该方法涉及通过使高脂肪胺与环氧乙烷或环氧丙烷反应获得的烷氧基化的高脂肪胺与二元酸的酸酐的缩合反应,所述二元酸的范围包括:丙二酸,琥珀酸,戊二酸,马来酸,癸二酸,邻苯二甲酸酸,按以下组分比例,wt%:高脂肪胺40-65;环氧乙烷或环氧丙烷15-33;其余为二元有机酸的酸酐;将获得的二元有机酸酐等摩尔开口的预产物以烷氧基化的高脂肪胺与所述产物的摩尔比等于3:2的方式添加到过量的烷氧基化的高脂肪胺中,从而获得低聚物形式的缓蚀剂的碱。 。在第二变体中,该方法在碱催化剂的存在下实施。效果:通过一种方便的方法从无毒原料中获得具有延长作用的缓蚀剂。2 cl,1 tbl,15 ex

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