通过连续回流水解萃取法由油茶饼粕制得一种酸洗用缓蚀剂，研究确定了该缓蚀剂的最佳制备工艺，通过测定自腐蚀电位、极化曲线和电化学阻抗谱，评价了缓蚀剂的缓蚀性能.结果表明，缓蚀剂的最佳制备工艺为：茶粕颗粒大小50~60目，水与盐酸的体积比1∶1，于脂肪提取器中加热至沸,连续水解1.5 h制得缓蚀剂，适当浓缩后其有效成分中总氨基酸含量可达24.38 g·L-1.该缓蚀剂对X65碳钢在酸性介质中有较好的缓蚀性能，缓蚀效率可达81.2%，属于混合型缓蚀剂.

A kind of corrosion Inhibitor for acid pickling has been made from oil-tea-cake.The optimum parameters of the preparation technique were determined.The capability of corrosion inhibition for mild steel was investigated by polarization curves and corrosion potential measurements as well as electrochemical impedance spectroscopy.The total content of amino acid of inhibitor could reach 24.38 g·L-1 when the granularity of oil-tea-cake was 50-60 grit number,the ratio of volume of water to hydrochloric acid was 1∶1 and the continuous time of hydrolysis was 1.5 h.Inhibition efficiencies of 81.2% could be obtained in 10% （V%）hydrochloric acid solution with 2%（V%） inhibitor.Polarization curves showed that it was a mixed type of inhibitor.