The preparation of nanometer copper powder by chemical reduction combined with homogeneous precipitation method is studied.
研究了以化学还原法与均匀沉淀法相结合的方法制备纳米铜粉。
The main treatment methods of spent electroless nickel plating solution include chemical deposition, catalytic reduction, electrolysis, ionic exchange, etc.
化学镀镍废液的处理方法主要有化学沉淀法、催化还原法、电解法、离子交换法等。
This paper deal with a new method of preparing nano-silver powder by resin absorption and chemical reduction method.
研究了一种通过树脂吸附—化学还原的方法制备纳米银粉的新方法。
Sliver nanoparticles were synthesized by chemical reduction route applied silver nitrate and butanediamine as raw materials.
以硝酸银和丁二胺为基本原料，采用化学还原方法合成了银纳米粒子。
The formula of final error in the oxidant reduction titration is deduced according to the principle that the inconsistency of titrating final and chemical calculating point leads to the final error.
根据滴定终点与化学计量点不一致而导致终点误差这一原理，推导出氧化还原滴定的终点误差公式。
The feasibility of prepared nanometer-scale copper powders by chemical reduction method was studied.
探索用化学还原法制备纳米铜粉的可行性。
The advantages and disadvantages of the catalysts prepared by rapid quenching method, chemical sediment method, and chemical reduction impregnation method were discussed.
阐述了淬冷法、化学沉积法、 化学还原浸渍法制备的非晶态合金催化剂的优缺点。
The preparation of nano-copper powders by chemical reduction were studied under ultrasonic field in the solution.
对超声场辅助增强作用下的液相化学还原法制备纳米级铜粉的工艺过程和条件进行了研究。
The advantage of catalytic hydrogenation over chemical reduction is that the product has higher purity quotient and is separated more easily.
与化学还原方法相比催化氢化的优点在于产品纯度高，易分离。
In this paper mechanical polishing; Chemical polishing and hydrogen reduction methods used im cleaning bearing steel surface for oxygen determination have been studied.
本文研究了用机械抛光、化学抛光和氢还原法处理轴承钢表面对测定氧的影响。
Chemical properties of stability, with a total reduction of carbon barium sulfide.
化学性质稳定，与碳共热还原为硫化钡。
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。
During the brewing process of catalyzed wine, a series of complicated physical and chemical reactions such as oxidation, reduction, etherification and association occur.
沉缸酒在发酵过程中，发生了一系列复杂的物理化学变化，如氧化、还原、酯化、缔合等，同时伴随着色泽、成分的变化及分子缔合作用。
In gasification section, hot carbocoal and vaporization agent after reduction, oxidation and so on a series of chemical reactions that produce gas, called sublimation gas.
在气化段，炽热的半焦和汽化剂经过还原、氧化等一系列化学反应生成的煤气，称为气化煤气。
The project made studies on the manufacturing process of the bright nanometer Ag powder, and fixed the process route of chemical reduction-mechanical ball milling.
本项目对纳米光亮片状银粉的制备工艺进行了研究，确定了化学还原—机械球磨的工艺路线。
The article analyzes the main problem of catalytic reduction and chemical reduction, proposes the idea for further study and summarizes qualitative and quantitative analysis of the products.
本文对催化还原法和化学还原法存在的主要问题进行了分析，提出了进一步研究的设想。综述了产物的定性和定量分析。
In DMF tetraethyl ammonium bromide(TEAB) media, the reduction of irisquinone was two successive single electron processes without the chemical reaction of the free radical semiquinone.
在DMF-四乙基溴化铵（TEAB）质子惰性介质中，马蔺子素连续两步单电子还原生成相应氢醌阴离子，无中间体半醌自由基的化学反应发生。
This chemical reaction is called reduction.
这种化学反应叫作还原。
Using ascorbic acid as reducing agent and gelatin as dispersant, the spherical ultra-fine silver powder was synthesized by the chemical reduction method.
采用化学还原法，以抗坏血酸为还原剂，明胶为分散剂制备了球形超细银粉。
By adopting photo-reduction, chemical and electrochemistry technology, the preparations and influencing factors of nano-silver, nano- nickel and hydration silica were researched respectively.
采用光还原、化学和电化学技术，分别研究了纳米银和纳米镍以及纳米水合二氧化硅纳米材料的制备和影响因素。
It includes a brief review of chemical thermodynamics that is followed by discussion of acid-base, precipitation-dissolution, coordination, and reduction-oxidation reactions.
首先是简短回顾化学热力学，接著是讨论酸碱、沉淀—溶解、配位和还原氧化反应。
Generally, the oxygen reduction and evolution is a two-electron chemical reaction.
讨论了氧还原和氧析出时的电化学反应机理。
Four preparation methods for aromatic amine were reviewed in the paper: reduction of metals, catalytic hydrogenation reduction, hydration hydrazine reduction and electro-chemical reduction.
综述了还原芳香族硝基化合物制备芳胺的主要方法，包括催化加氢法、金属还原法、水合肼还原法、电化学还原法等。
This dissertation studied the activity of manganese oxides catalyst supported by palygorskite catalyst in lower temperatures for selective catalytic reduction of NO and its physic-chemical properties.
本文研究了凹凸棒石负载锰氧化物催化剂的物理化学性能和低温选择性催化还原NO性能。
In the other system, electric power is generated based on an oxidation-reduction chemical reaction of an electrode and ions.
在另一个系统中，通过电极和离子的氧化还原化学反应产生电力。
The critical point of chemical reduction was the option of reducing agent.
化学还原法的关键在于还原剂的选择。
Introduction of 11-hydroxy group into steroids by chemical methods, such as keto-reduction, halogenation-dehalogenation, borane-hydrogen peroxide and peroxidation-reduction are reviewed.
综述了在甾体化合物11 -位引入羟基的各种化学合成方法，主要包括酮基还原法、上脱卤素法、硼烷双氧水法、过氧化-还原法等。
Introduction of 11-hydroxy group into steroids by chemical methods, such as keto-reduction, halogenation-dehalogenation, borane-hydrogen peroxide and peroxidation-reduction are reviewed.
综述了在甾体化合物11 -位引入羟基的各种化学合成方法，主要包括酮基还原法、上脱卤素法、硼烷双氧水法、过氧化-还原法等。
应用推荐