Regioselectivity and composition of the green nitration products between methyl salicylate and iron(ⅲ) nitrate 硝酸铁与水杨酸甲酯绿色硝化的选择性及其副产物组成的研究
A new process that industrial nitric acid reacts with iron chippings and shavings to produce ferrous nitrate solution is presented. 本文介绍了采用工业硝酸酸化废旧铁屑、制取硝酸亚铁溶液,并以该溶液为主要原料研制新型铁-铬系中温变换催化剂。
Effect of Iron Corrosion Products on Nitrate Reduction by Iron Powder under Different pH 不同pH下铁腐蚀产物对铁粉还原硝酸盐的影响
Preparation of Nanoscale Zero-Valent Iron and Research on Nitrate and Nitrite Removal 纳米铁的制备及去除水中硝酸盐氮研究
Headway on Application of zero valent iron in rehabilitating water body contaminated by nitrate 零价铁修复硝酸盐污染水体的研究进展
In the fourth chapter, the preparation of potassium ferrate was investigated with respect to reaction temperature, reaction duration, the ratio of iron nitrate in reaction, the best concentration of KOH in recrystallization. 第四章研究了反应温度、氧化时间、硝酸铁的加入量、重结晶时KOH浓度的选择等因素对制备高铁酸盐的影响。
The experimental results showed that iron nitrate was the ideal catalyst precursor. 实验结果表明,硝酸铁是理想的催化剂先驱体。
ICP-AES determination of arsenic 、 bismuth 、 iron 、 manganese 、 lead 、 stibium in pure copper by coprecipitation with lanthanum nitrate 硝酸镧共沉淀ICP-AES法测定纯铜中砷、铋、铁、锰、铅、锑
Synthesis of Iron Nanoparticles by Microemulsion with Span/ Tween as Mixed-surfactants for Denitrification of Nitrate in Water Span/Tween混合表面活性剂微乳液制备纳米铁及脱硝研究
Iron nitrate in iron series has higher activity than other iron containing in catalysts. 铁系催化剂中的硝酸铁具有较高的活性和抑制甲苯不溶物生成的能力;
The results showed that: ( 1) The major pollutants of leachate were distributed in the methanogenesis, and then in the iron and nitrate reduction zone. 结果表明:(1)渗滤液主要污染物在黄土层渗漏过程中的分布规律为:产甲烷带铁还原带硝酸盐还原带。
Iron deficiency significantly decreased the activity of nitrate reductase, increased the accumulation of nitrate and reduced the contents of Vc and soluble protein, resulting in deteriorated quality of Chinese cabbage. 缺铁显著降低氮代谢关键酶-硝酸还原酶的活性,增加了硝酸盐的积累,降低Vc和可溶性蛋白质的含量。