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1)  dilute nitric acid production
稀硝酸生产
1.
According to the character of dilute nitric acid production and the choosing principle of CPA index.
针对稀硝酸生产的特点和清洁生产评价指标的选取原则,建立了包括原材料、产品、资源及污染物在内的稀硝酸清洁生产评价指标体系,采用统计剔除层次分析法确定了各指标的权重,构筑了稀硝酸清洁生产水平的评价方法,最后根据国内外稀硝酸生产运行数据,结合某稀硝酸生产企业,对此加以应用说明。
2)  nitric acid production
硝酸生产
1.
The trends and advances in platinum alloy catalyst gauzes for nitric acid production were reviewed,including the materials,manufacturing technologies and application technologies and analytical technologies.
阐述了硝酸生产用铂合金催化网综合技术的趋势与发展,包括铂合金催化网材料、铂合金催化网加工制造技术、应用技术及分析技术的发展。
2.
This paper summarizes the development of nitric acid industry at home and abroad, compares the different nitric acid production processes, analyzes the advantages and disadvantages of the various processes.
本文对国内外硝酸工业的发展进行了比较全面的总结,对不同的硝酸生产工艺流程进行了比较,分析了各个工艺的优点和缺点。
3.
Utilization rate of ammonia in nitric acid production was discussed based on the analysis of nitric acid production principle.
通过对硝酸生产基本原理的分析引入氨利用率概念,结合实际情况探讨其求解方法,从中得到氨利用率的实际应用。
3)  production of nitric acid
硝酸生产
1.
In order to determine reliability of analyzed data of NO oxidation rate in production of nitric acid,the sample analysis method of NO oxidation rate was discussed from aspects of analytical procedure,analytical principle and analytical calculation etc.
为确定硝酸生产中NO氧化度分析数据的可靠性,从分析手续、分析原理、分析计算等方面论述了NO氧化度的取样分析方法,通过多项实际操作参数,例举了氧化度的计算过程和计算方法。
2.
Compared with three-element knitted meshwork,newly developed Pt-Rh two-element knitted meshwork which has advantages of novel technology,large specific area,light weight,high intensity,good activity,high conversion efficiency of NH3,low lost of Pt and long life is used in the production of nitric acid.
新研制的铂铑二元针织网与三元针织网相比,具有编织工艺先进、比表面积大、重量轻、强度高、活化性能好、氨转化率高、铂损失小、使用寿命长等优点,在硝酸生产中已投入使用。
4)  production of potassium nitrate
硝酸钾生产
5)  nitric acid dilution
硝酸配稀
1.
Design of nitric acid dilution and NO_x tail gas treatment united system;
硝酸配稀系统及含NO_x尾气处理系统的设计
6)  rare earth nitrate
硝酸稀土
1.
A series of novel solid complexes of rare earth nitrates with SEO 2 have been synthesized in ethyl acetate.
本文用硝酸稀土与水杨酸二甘醇二酯 (简写为 SE0 2或 L)在乙酸乙酯溶液中反应 ,合成了一系列新的固体配合物。
2.
Adding different quantity of rare earth nitrate to the Carassius auratus feed and researching the effect of rare earth on the production performance and nutritional status of Carassius auratus.
在鲫鱼的饲料中添加不同浓度的硝酸稀土进行对比试验,研究稀土元素对鲫鱼生长性能和体内代谢的影响。
补充资料:共沸蒸馏稀硝酸浓缩法
分子式:
CAS号:

性质:浓硝酸生产方法之一。氨和空气经过滤后,混合,进入氨氧化炉,在铂网催化剂作用下生成一氧化氮,经废热回收、冷却后进入氧化氮压缩机被加压到0.35~0.45MPa压力,再经空气成二氧化氮,用68.4%的共沸酸吸收二氧化氮,生成73%~74%超共沸硝酸。在精馏塔中将浓硝酸蒸馏分离出来,塔底排出的共沸硝酸循环使用。98%硝酸蒸气自塔顶逸出,冷凝、部分回流,剩余为成品酸。特点:工艺流程相对较短,不需要设置空分装置。

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