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在不同转化度的热钾碱(热的碳酸钾)溶液中,用旋转电极测定了碳钢的阳极极化曲线和钒酸盐的临界致钝浓度。讨论了碳钢钝化的特点;钒酸盐临界致钝浓度与碳酸钾转化度的关系;钒酸盐与锑盐的协同作用;从理论上对热钾碱脱碳系统碳钢设备的预钝化工艺提出了建议。
The anodic polarization curve of carbon steel and the critical blunt concentration of vanadate were determined by rotating electrode in the solution of hot potash (hot potassium carbonate) with different conversion degrees. The characteristics of passivation of carbon steel were discussed. The relationship between the critical dull concentration of vanadate and the degree of conversion of potassium carbonate. The synergistic effect of vanadate and antimony salt. Chemical technology made recommendations.