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“7701”缓蚀剂的主要成分是出4-甲基吡啶和氯化苄反应形成的季铵盐,是一种耐高温浓盐酸的性能优异的缓蚀剂。特别是它与乌洛托品等复配后,在196℃下仍有相当好的缓蚀性能,现在已为许多油田进行酸化压裂时斫采用。
The main component of “7701” corrosion inhibitor is a quaternary ammonium salt formed by the reaction of 4-picoline and benzyl chloride, which is a kind of excellent corrosion inhibitor with high temperature and high concentration of hydrochloric acid. In particular, its combination with urotropin and the like still exhibits quite good corrosion inhibition performance at 196 ° C and is now used for acid fracturing in many fields.