查询词典 methanol

Dimethyl carbonate is synthesized directly from carbon dioxide and methanol in the presence of magnesium methoxide .

报道一种在甲醇镁作用下，由二氧化碳及甲醇直接合成碳酸二甲酯的反应过程。

While the oil is cooling mix your methanol and NaOH to form the methoxide.

当食用油冷却时，先将甲醇和氢氧化钠。

Transesterification of rapeseed oil to biodiesel with methanol using calcium methoxide as a solid base catalyst was investigated.

研究了甲醇钙固体碱催化剂催化菜籽油和甲醇酯交换反应制备生物柴油的反应性能，分析了甲醇钙的比表面积、总孔体积、平均孔径和热稳定性，并研究了反应温度、催化剂用量和醇油摩尔比对生物柴油产率的影响。

An improved method of synthesizing trimethyl orthoformate through azeotropic distillation by taking sodium methoxide in methanol and chloroform as raw materials has been presented by the author.

摘 要：介绍了以甲醇钠甲醇溶液与氯仿为原料，采用共沸蒸馏法制备原甲酸三甲酯的改进工艺。

The direct synthesis of dimethyl carbonate from methanol and carbon dioxide using another basic catalyst, potassium methoxide in the presence of CH〓I as a promoter was investigated.

除了用甲醇于二氧化碳合成DMC以外，我们又对以甲醇与尿素为原料合成DMC的路线进行了尝试，筛选出了两个离子液体Et〓NHCl-FeCl〓和emimBr-ZnCl〓作为用甲醇与尿素为原料合成DMC的高效催化剂，研究了各种反应条件如原料的比例、催化剂的添加量、反应的温度等对反应的影响，得到了所报道的在间歇釜中经一步反应合成DMC的最高产率（27％和26％左右）。

Carbon dioxide ; Methanol ; Dimethyl carbonate ; Supported nickel methoxide complex ; SiO\-2 support

二氧化碳；甲醇；碳酸二甲酯；负载型镍甲氧基配合物； SiO2载体

Synthesis of methyl formate by carbonylation of methanol with only sodium methoxide as catalyst exists some shortages, such as low activity, rapid loss of activity and short catalyst life.

以单一甲醇钠作为催化剂通过甲醇羰基合成甲酸甲酯，存在催化剂活性不高、易失活、寿命短等问题。

Take the mixture of methanol/NaOH (commonly called methoxide on this forum) and pour on top of the oil using the same funnel.

将甲醇和氢氧化钾的混合液通过同一个滤斗倒入塑料软饮料瓶。

Further investigation indicates that methoxyl group was produced only by the reaction of methanol with surface hydroxyl group. It was also revealed that methoxyl group vanished quickly when it was exposed to water vapor.

进一步的研究结果表明，甲氧基是由甲醇同氧化锌表面的羟基反应生成的，将其暴露于水蒸汽中后很快消失。

The FTIR results show that methoxyl group was formed from the adsorbed methanol on the surface of zinc oxide, and its amount increased with increasing adsorption temperature.

FTIR结果表明，甲醇吸附于氧化锌上易生成甲氧基，且其生成量随着吸附温度的提高而增加。

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。