1) hydrazine method
联氨法
2) hydrazine
[英]['haidrəzi:n] [美]['haɪdrə,zin]
联氨
1.
Studies on the Directional Reaction of Silver with Reducing Agent Hydrazine of Various Valences;
具多价态还原剂联氨与银定向反应的研究
2.
Study of Hydrazine Deoxygenation in Neutral Aqueous Solution;
中性水质中催化联氨除氧效果试验研究
3.
Highly Selective Electrochemiluminescence Sensor for Hydrazine;
联氨电化学发光传感器的研制及分析特性研究
3) hydrazine hydrate
水合联氨
1.
Superfine silver powder was prepared by water-hydrazine hydrate chemical reduction method.
介绍了电子浆料用超细银粉的研制,采用的是水合联氨化学还原工艺。
2.
The cobalt (Co) powder is prepared under a direct reduction process in hydrazine hydrate alkaline system and the thermodynamic mechanism is investigated.
对水合联氨溶液直接还原法制备金属钴粉作了热力学分析并进行了实验研究,采用EDTA容量滴定分析法、X射线衍射分析(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)对钴粉的纯度、形貌、粒度及晶型进行分析表征,结果表明:在氯化钴溶液体系中,以水合联氨为还原剂,硼氢化钾为晶核引发剂,柠檬酸钠为络合剂,可制备纯度为99。
4) reduction
[英][rɪ'dʌkʃn] [美][rɪ'dʌkʃən]
水合联氨
1.
Based on reduction process in liquid phase with hydrazine hydrate,the preparation conditions of nano-copper-nickel alloyed powder,such as the temperature,the concentration of reduction,the concentration of reactant,the pH value,have been investigated.
在液相水合联氨还原法工艺基础上,通过改进工艺,制备出平均粒径为90 nm、黑色无定形的纳米级Cu-Ni合金,研究了该工艺优化的还原反应条件:反应体系温度70℃,还原剂浓度[N2H4。
5) ammonia and methanol integrated production
氨醇联产
1.
A reasonable capacity of ammonia and methanol integrated production plantcan produce favourable economic benefit and improve product competition, by which the plant can be developedas a comprehensive enterprise of fertilizer and fuel integrated pr.
一定规模的氨醇联产会使工厂产生良好的经济效益并提高产品的竞争力,成为集化肥和燃料生产为一体的综合性企业。
6) amine coupling
氨基偶联
1.
Aim: To study that human IgG protein couples with carboxylmethyl dextran by amine coupling reaction,and associates with goat anti-human IgG protein.
目的:研究人免疫球蛋白质与羧甲基葡聚糖的氨基偶联及其与其他蛋白质的特异结合作用。
补充资料:硫酸吸氨法回收氨
硫酸吸氨法回收氨
ammonia recovery process
liusuanxi,an fa huishou an硫酸吸氨法回收氨(ammonia reeovery bysemi一direct process)焦炉煤气回收氛的一类方法。它以硫酸为吸收液,回收煤气中的氨,同时制成硫酸按。最早开发的方法是直接法,该法用硫酸在焦炉煤气初冷前直接吸收煤气中的氨,对煤焦油质量有不利影响,故被半直接法所取代。半直接法将吸氨设备移到煤气初冷之后,克服了直接法的缺点。该法将焦炉煤气初冷过程中产生的含氨冷凝液进行蒸氨处理,蒸馏出的氨引入初冷的煤气一并用硫酸吸收。半直接法分为饱和器法和酸洗塔法两种。饱和器法是一种传统的半直接法,已有百年历史,产品为粉状结晶硫酸钱。酸洗塔法是20世纪40年代开发的,已为各国采用。产品为大颗粒结晶硫酸馁。硫酸吸氨法的优点是流程短,设备少;缺点是硫酸耗用量大,lt产品耗用0.75t硫酸,成本较高。 (徐一)
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参考词条