A composition and method for inhibiting corrosion of iron and steel in the presence of aqueous acid, especially concentrated hydrochloric acid comprising at least 5% by weight HCl, comprising an effective corrosion inhibiting amount of an alkenylphenone having the following structure:
wherein R₁ may be unsubstituted or inertly substituted aryl of 6 to about 10 carbons, and R₂ and R₃ may be the same or different and each may be hydrogen, halogen, or inertly substituted aliphatic of about 3 to about 12 carbons, and R₂ may also be alkanol, ether, or unsubstituted or inertly substituted aryl of 6 to about 10 carbons, provided that the total number of carbons in said alkenylphenone does not exceed 16, and preferably including a surfactant, and a process of using this composition.
一种组合物和方法,用于在
水酸,特别是由至少 5%(重量)
盐酸组成的浓
盐酸存在下抑制
铁和钢的腐蚀,该组合物包含有效缓蚀量的具有以下结构的烯基
苯酚:
其中 R₁ 可以是未取代的或惰性取代的 6 至约 10 个碳原子的芳基,R₂ 和 R₃ 可以相同或不同,各自可以是氢、卤素或惰性取代的约 3 至约 12 个碳原子的脂肪族,R₂ 也可以是烷醇、醚,或 6 至约 10 个碳原子的未取代或惰性取代的芳基,条件是所述烯基
苯酚中的碳原子总数不超过 16 个,最好包括表面活性剂,以及使用该组合物的工艺。