查询词典 oxidations

The oxidations of-abietic acid by 〓,〓 and 〓 under various reaction conditions and its addition reaction withdichlorocarbene were investigated.

本文首先从广西产松香中分离纯化得到松香酸，然后探讨了不同条件下〓等氧化剂对其共轭双键的氧化反应以及二氧卡宾对其共轭双键的加成反应。

Green oxidation using clean oxidants under environmentally friendly solvents with recyclable solid catalyst is a focus among oxidations.

在氧化反应的研究过程中，利用清洁的氧化剂，借助于可循环使用的固相材料为催化剂，使用对环境友好的溶剂体系，是绿色氧化反应的一个研究方向。

In this article,tungsten trioxide was selected as the raw material to producing ultrafine and homogenous tungsten powder by oxidation-reduction method through 5 Deoxidizations and 4 oxidations.

选取三氧化钨为原料，通过5次还原4次氧化制备出超细钨粉，所得金属钨粉的平均粒度约为0。

In order to avoid Madeirization, enzyme treatments provided with a prospective method. In this paper, the mechanism of Madeirization, enzymes, polyphenols and enzyme oxidations which related to Madeirization were discussed. Comparison between traditional methods and enzyme treatment processing technology in white wine were also reviewed.

较全面地介绍了马德拉化的反应机制和能消除葡萄酒中引起马德拉化反应的多酚类物质的酶的种类及其酶促反应类型；比较了酶处理与传统方法的异同，并给出了酶处理防止马德拉化的工艺流程。

With the oxidative rate of four aromatic compounds catalyzed by SLO under different conditions, the inhibitive rate and the 50% inhibitory concentration of these antioxidants for the oxidations were calculated, respectively.

根据不同条件下SLO对四种芳香化合物氧化的速度，计算出各调节物对SLO介导这类化合物氧化的抑制率及半数抑制浓度。

Therefore, from both the economic and environmental viewpoints, there is a definite need for catalytic oxidations employing hydrogen peroxide as the stoichiometric oxidant for hydrogen peroxide is environmentally friendly, cheap a...

因此，从经济和环境的双重角度来考虑，以环境友好，价格低廉的过氧化氢为氧源，采用催化氧化反应替代传统有机氧化过程是化工生产的发展趋势。

In the selective oxidations, Manganese porphyrin mimic enzyme systems supported on different inorganic supports are designed and developed, which are applied in studies of green processes, such as, the selective olefin epoxidation with oxygen in either ionic liquid or water, the oxidation of alcohols.

在选择性氧化反应中，设计制备了不同无机载体的锰卟啉模拟酶体系，分别在离子液选择性和水相中开展了以氧气为氧源的烯烃环氧化、醇的氧化等绿色反应过程的研究。

Therefore, from both the economic and environmental viewpoints, there is a definite need for catalytic oxidations employing hydrogen peroxide as the stoichiometric oxidant for hydrogen peroxide is environmentally friendly, cheap and rea...

因此，从经济和环境的双重角度来考虑，以环境友好，价格低廉的过氧化氢为氧源，采用催化氧化反应替代传统有机氧化过程是化工生产的发展趋势。

In this article,tungsten trioxide was selected as the raw material to producing ultrafine and homogenous tungsten powder by oxidation-reduction method through 5 Deoxidizations and 4 oxidations.

选取三氧化钨为原料，通过5次还原4次氧化制备出超细钨粉，所得金属钨粉的平均粒度约为0.38μm，比表面积高达3471.79 m~2/kg。

Anodic oxidations may be carried out with alkaline solutions of nitrate s, perchlorates, fluoroborates, or fluorosilicates.

在硝酸盐、高氯酸盐、氟代硼酸盐或氟代硅酸盐的碱性溶液中通过阳极氧化作用可制备PbO2。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。