查询词典 chloromethane

The synthesis of 1,2-dimethoxybenzene from chloromethane combined with pyrocatechol is introduced in this artcile.

本文介绍了以氯甲烷和邻苯二酚为原料合成1，2-二甲氧基苯的方法。

The chloromethane -containing waste gas was treated by catalytic oxidation process and the affecting factors were studied.

用催化氧化法处理氯甲烷废气，考察了各种因素对催化氧化处理效果的影响。

The thermal stability of the end-capped copolymers is improved after inletting chloromethane gas under certain conditions.

采用一氯甲烷对共聚物进行封端，封端后聚合物的10%的热失重有所上升。

The alkali cellulose is then treated with chloromethane and propylene oxide to produce methylhydroxypropyl ethers of cellulose.

碱性纤维素然后被氯代甲烷和丙烯氧化物处理生产出甲基羟丙基纤维素。

The raw materials are roughly the same,including wood pulp or good cotton as raw materials and chloromethane and epoxgpropane.

原料也基本相同，主要原料为木浆或精制棉，醚化剂为氯甲烷和环氧丙烷等。

Biogas methane can also be used to make methanol, an organic solvent and an important chemical for producing formaldehyde, chloromethane, organic glass, and compound fibre.

沼气甲烷还可以用来制作甲醇，一种有机溶剂，是生产甲醛、甲基氯、有机玻璃和合成纤维的重要化学物质。

In other words, silicon powder and chloromethane are converted into a mixture of methyl chlorosilane in the presence of catalyst under pressure and heat, and then the intended fraction is separated by efficient fractionation.

产品主要以有机硅单体为原料，采用不同的聚合手段和工艺，添加各种填料和助剂制得。

The experimental results show that:Under the conditions of reaction temperature 350℃,space velocity 4 800 h~(-1)and volume ratio of air to waste gas 15,the conversion rates of chloromethane and total hydrocarbon are all larger than 99%;There is almost no phosgene generation;HCl in the tail gas of oxidation can be well absorbed by NaOH solution;The activity of the catalyst usingγ-Al_2O_3 a...

实验结果表明：在反应温度为350℃、空速为4 800 h~(-1)、空气与氯甲烷废气的体积比为15的条件下，氯甲烷转化率和总烃转化率均大于99%，催化氧化过程中基本不产生光气；催化氧化反应后尾气中的HCl用NaOH溶液作吸收剂的吸收效果较好；γ-Al_2O_3为载体的催化剂活性基本稳定。

A few years ago, while working at the Department of Agriculture and Food Science in Northern Ireland, we discovered that aging plants provide most of the chloromethane found in the atmosphere. Because methane, like chloromethane, is released during the burning of biomass, we wondered whether intact plants might also release methane.

氯甲烷是一种会破坏臭氧的氯化气体，过去认为主要来自於海洋与森林火灾；几年前，我们任职於北爱尔兰农业与食品科学部时，发现大气中存在的氯甲烷，大多是由腐朽的植物所排放，因为甲烷跟氯甲烷都是在生质燃烧期间释放出来的，於是我们想知道整株植物是否也可能释放甲烷。

The results indicated that: the water content of product decreased from 2580 PPm to 50 PPm by sweep gas method in the water/chloromethane system and the separation factor of water/chloromethane was 74800; the water content of product decreased from 2580 PPm to 36 PPm by vacuum method in the water/chloromethane system and the separation factor of water/chloromethane was 32500; the separation factor and the flux of the dehydration of dichloromethane were 39900 and 0.172 kg·m~(-2)·h~(-1),respectively; the separation factor and the flux of the dehydration of trichloromethane at 50℃were 57300 and 0.564 kg·m~(-2)·h~(-1), respectively; the separation factor and the flux of the dehydration of carbon tetrachloride at 60℃were 68200 and 0.612 kg·m~(-2)·h~(-1),respectively.

结果表明：利用吹扫气法，对于水/一氯甲烷操作体系，其分离因数高达74800，产品水含量由进料侧的2580 PPm，降低到50 PPm；利用抽真空法，对于水/一氯甲烷操作体系，其分离(来源：93ABC论9090文网www.abclunwen.com)因数高达32500，产品的水含量由进料侧的2580 PPm，降低到36 PPm；对于二氯甲烷脱水体系，水/二氯甲烷分离因数和渗透通量分别为39900和0.172 kg·m~(-2)·h~(-1)；对于氯仿脱水体系，操作温度为50℃时，水/氯仿分离因数和渗透通量分别为57300和0.564 kg·m~(-2)·h~(-1)；对于四氯化碳脱水体系，操作温度为60℃，水/四氯化碳分离因数和渗透通量分别为68200和0.612 kg·m~(-2)·h~(-1)。

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。