为了综合利用白酒糟和开发新型绿色酸洗缓蚀剂，制取了鲜白酒糟提取液，采用失重法和电化学法研究了其作为硫酸酸洗缓蚀剂的缓蚀性能。结果表明：15g酒糟在300mL5％硫酸溶液中30℃静置浸泡6h，得到的提取液在5％硫酸介质中对Q235钢的缓蚀率最高；酒糟提取液在Q235钢表面的吸附符合E1-Awady动力学模型和Flory-Huggins吸附等温方程，属于几何覆盖效应的单分子层吸附，提取液为混合型缓蚀剂；放置时间延长时，提取液的缓蚀率降低。
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