但对废水中另一主要成分对硝基苯甲酸降解不明显。
But one of the main components, 4-nitrobenzoic acid, has no degrading tendency.
探讨了4-羟基-3-硝基苯甲酸制备工艺的改进。
The process for synthesizing 4-hydroxy-3-nitrobenzoic acid was selected.
结果对硝基苯甲酸乙酯收率达98%,硫酸氢钠绝大部分以固体形式存在。
Results: the yield was over 98%, and most of the sodium bisulfate was in the solid form.
与其他金属卟啉相比,铁卟啉的催化活性普遍较好,对硝基苯甲酸的收率都在75%以上。
And generally, the catalytic activity of iron porphyrins was better than that of other metal porphyrins, and the yields of PNBA are all more than 75%.
实验结果表明,季铵盐a1对于高锰酸钾氧化邻硝基甲苯合成邻硝基苯甲酸,是1种优良的相转移催化剂。
The experiment results show that a 1 is a good PTC for synthesis of ONBA with o nitrotoluene by oxidation of potassium permanganate.
极化曲线表明,对硝基苯甲酸钠对碳钢的阴阳极过程均有抑制作用,对阳极过程的抑制更强烈,在适当浓度时可使碳钢钝化。
The polarized curves obtained indicate that SpNB inhibits both the anodic and cathodic processes on the carbon steel and the former is inhibited in more extent.
硝基苯、2-氯代苯甲酸等污染物的降解率分别为1 0 0 %。
The degradability for nitrobenzene, 2 chloro butenoic acid are all 100%.
硝基苯、2-氯代苯甲酸等污染物的降解率分别为1 0 0 %。
The degradability for nitrobenzene, 2 chloro butenoic acid are all 100%.
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