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在实验室以辛醇和P_2S_5(配比为4～2:1)等为原料,在100～170℃反应约5h合成了一种新型抗环烷酸腐蚀的硫醇基硫代磷酸辛酯缓蚀剂。试验结果表明,辛醇含量越低,产物中双硫醇基硫代磷酸单辛酯的含量越高,缓蚀效果越好;反应温度较高时,产物的产率较高;在270～280℃或340～350℃温度范围内,合成产物有较好的抗环烷酸缓蚀作用,当其加入量为1000mg/L时,缓蚀效率可达95％以上。
A new type of naphthenoyl thioctyl thiophosphate corrosion inhibitor was synthesized in the laboratory with octanol and P 2 S 5 (4: 2: 1 ratio) as starting materials at 100-170 ° C for about 5 h. Agent. The results showed that the lower the octanol content was, the higher the content of monooctyl thioglycolate phosphorothioate in the product was, the better the corrosion inhibition effect was. The higher the reaction temperature was, the higher the product yield was. In the range of 270-280 ℃ or 340 ~ 350 ℃, the synthesized products have better anti-naphthenic acid corrosion inhibition, when the addition amount of 1000mg / L, the inhibition efficiency of up to 95%.