查询词典 ammonia process

Furthermore, this paper explored a new feasible process of cyanide recovery,investigated the effect of time, concentration of H2SO4 and temperature on the elution of cyanide and zinc in the process of first stage elution, and discussed the effect of time,concentration of ammonia water, temperature and ultrasonic on the elution of copper in the second stage elution.

另外，本实验探索出一种可行的回收氰化物新工艺，在硫酸解吸过程中，研究了硫酸解吸的时间、浓度和温度因素对氰和锌的解吸率的影响；在氨水解吸实验中探讨了时间、温度、浓度、超声波等因素对铜解吸率的影响。

In this thesis, the author importantly clarified the process engineering of natural gas which used in the development of Sulige gas field, the process engineering is ammonia refrigeration and low temperature separation, dehydration and dealkylation , and analyzed the operation effect of the processing.

本文重点对苏里格气田开发过程中采用的氨制冷低温分离脱水脱烃天然气处理工艺的应运情况进行了阐述，运行效果进行了分析，为苏里格气田的大规模开发提供技术依据。

In range of 300℃～900℃, all the transition metal oxide catalysts could get high ammonia conversion, during the initial stages of the reaction, the SO〓 conversion is relatively low since the catalysts have not been sulfureted, but it increases gradually and attain constant with rising temperature and time continuance,〓 is better than other catalysts in reactivity and elemental sulfur selectivity; XRD indicates that, in the SO〓-SCR process, stable transition metal sulfide is generated which is very important to SO〓 reduction and transition metal sulfide probably is the active phase of catalyst, further the reduction of SO〓 by H〓 to H〓S is the limiting step of all process, then the activity is somewhat related to its lattice oxygen yet not so notable; XPS indicates that little sulfur on surface exists as S〓 in sulfate, showing that TiO〓 could restrain the generation of sulfate.

对于过渡金属氧化物催化剂的研究发现，在300℃～900℃范围内，不同的催化剂均可获得很高的NH〓转化率，反应初期由于催化剂还未硫化，所以SO〓的转化率较低，随着温度升高和反应时间的延续，SO〓的转化率逐渐升高并达到了稳定值；七种过渡金属氧化物中，以〓对于NH〓还原SO〓反应的活性和选择性最好；XRD结果表明在NH〓-SO〓反应后生成了稳定的硫化物相，硫化物对SO〓的还原过程具有重要作用，催化剂的活性相可能是过渡金属硫化物，而且在硫化物催化剂上进行的H〓还原SO〓生成H〓S的反应是整个过程的速率控制步骤，所以催化剂的活性与其自身的晶格氧的氧化还原能力有一定的联系，但关系不明显；XPS结果表明催化剂表面的硫大部分以过渡金属硫化物的形式存在，只生成少量的S〓，说明TiO〓催化剂能够较好的抑制硫酸盐的生成。

The volatilized ammonia in removing process had been absorbed completely by using vitriol, which could produce dilute ammonium sulfate that should be reused in washing process in V2O3 production, which could avoid secondary pollution.

采用硫酸对吹脱出的氨完全吸收，产生的硫酸铵稀溶液回用于三氧化二钒生产工艺中的洗涤工序，避免二次污染的产生。

In the electrochemical process, ammonia was removed by either direct or indirect electrochemical oxidation process.

直接电化学氧化和间接电化学氧化是氨氮电化学氧化的两种方式。

The thermodynamic and kinetics of the natural clinoptilolite ion-exchange process for ammonia removal from wastewater was studied in this dissertation, the intensification of mass-transfer process was studied as well.

测定了国内三种有代表性的天然斜发沸石样品的总铵离子交换容量和常温下铵离子在钠型沸石上的平衡等温线，并与澳大利亚的同类样品作了比较。

And in the later sedimentation process after wind, content of aqueous ammonia nitrogen was lower than that before the light and moderate wind processes, but approximated to that before the strong wind process.

再悬浮过程之后的沉降过程中，中、小风条件的水体氨氮含量变小，大风条件的含量没有明显变化。

This paper introduces the studies of Gerhard Ertl, who is awarded the Nobel Prize in Chemistry 2007, in adsorption of hydrogen on metal surfaces, the mechanism of catalytic reaction in Haber- Bosch process for synthesis of ammonia, and the process of catalytic oxidation of CO.

格哈德·埃特尔的重要贡献主要有3方面：(1)解决了氢原子是如何在Pd、Pt和Ni等金属表面组织排列的问题；(2)对哈伯一博施法合成氨反应催化机理的研究；(3)对C催化氧化的研究及非线性动力学理论的建立。1 氢在金属表面吸附的研究萨巴蒂埃因发现精细金属颗粒催化有机物加氢的方法而获1912年度诺贝尔化学奖。

Based on the success of the industrialization of the process of catalytic distillation of methyl acetate hydrolysis, the new process of catalytic distillation of methyl acetate and methanol azeotrope hydrolysis and related fundamental research were studied. These can make further improvement on the process in order to simplify the process and reduce the energy-consumed of the recovery system. In addition, theoretical system of the simulation and design the catalytic distillation process were established, which can provide the basis of the pilot plant and industrialization in the future.

本文在催化精馏水解工艺工业化成功的基础上，进行了醋酸甲酯和甲醇共沸物催化精馏水解新工艺及其相关基础研究，以进一步改进工艺，达到简化流程及节能降耗的目的，同时建立起催化精馏过程模拟和设计的理论体系，为中试及将来的工业化打下了坚实的基础。

The experiment results showed that the adsorption process of hydrolyzation and heated treatment production is chemisorption process going with physisorption process, the adsorption process of derivation production is chemisorption process.

结果表明，水解产品和热处理产品的吸附过程是化学吸附与物理吸附同时进行的过程，衍生产品的吸附过程是典型的化学吸附。

Cable dampener cannot be rolled up but must be hung over the cable.

缆帆不能被卷起，必须保证处于展开状态

"This skylark is a present from my master," he says.

"这只云雀是我主人献上的礼物。"他说。