光气

Two synthetic technologies are em2 p loyed in commercial p roduction: solvent technology using tetrachloromethane as solvent, and no solventtechnology only using dimethyl carbonate itself.

固体光气是近年来迅速发展的绿色化工产品，主要通过碳酸二甲酯的光催化氯化反应合成，有四氯化碳溶剂法和碳酸二甲酯本体法工艺。

The auras of people who have loving thoughts are beautiful to behold on the inner planes.

拥有挚爱思想的人，他们的光气场在内在的次元看起来很美丽。

Because of its nonpoisonous, DMC can substitute phosgene , dimethyl sulfate or methylating used as methyl pharmaceutical to improve the security of production and reduce the environmental pollution; As the solvent, DMC can substitute fluorine lyons , methyl chloroform , trichloroethylene , benzene , dimethylbenzene, etc.. And it can be used as the paint dope, clean solvent. As gasoline additive, DMC can raise hard octane value and oxygen content and improve its antiknock possibility.

由于DMC无毒，可替代剧毒的光气、硫酸二甲酯等作为甲基化剂或羰基化剂使用，提高生产操作的安全性，降低环境污染；作为溶剂，DMC可替代氟里昂、三氯乙烷、三氯乙烯、苯、二甲苯等用于油漆涂料、清洁溶剂等；作为汽油添加剂，DMC可提高其辛烷值和含氧量，进而提高其抗爆性。

Room temperature ionic liquids are the hot points of the current research fields of chemistry, chemical engineering and functional materials. Since 1998, the preparation and application of ionic liquids as environmentally benign reaction media and functional material have been carried out in Lanzhou Institute of Chemical Physics. The detailed research work, including the design and preparation of novel ionic liquids, ionic liquid as catalyst and reaction medium in sulfuric acid free Beckmann rearrangement,...

离子液体介质与材料研究是当前化学化工、功能材料的热点领域之一。1998年底以来，我们以发展离子液体清洁反应介质和软功能材料为研究内容，以实现新离子液体的设计与合成，离子液体中无硫酸Beckmann重排反应、非光气异氰酸酯合成、二氧化碳吸收与活化、反应-升华分离一体化，微孔硅胶限制纳米尺度离子液体材料的设计合成和应用及离子液体-电化学技术集成等为目标开展了一系列研究工作并取得良好进展。

With 4 Xiu Shuang phenol - A and solid smooth air is raw material, dissolve it in 1 in, 2- 2 chlorine ethane solvents, slow drop adds 3 Yi Ans to carry out solution get together , with 3 Xiu benzene phenol does end dose, thick product sinks by industrial alcohol Xi after, take out to strain , wash is dry , grind white powder form flame retardant assemble carbon sour ester product.

以四溴双酚-A、固体光气为原料，将之溶解在1，2-二氯乙烷溶剂中，缓慢滴加三乙胺进行溶液聚合，以三溴苯酚做封端剂，粗产品经工业酒精沉析后，抽滤，洗涤，干燥，研磨得白色粉末状阻燃聚碳酸酯产品。

This Technology adopts green chemical product---Dimethyl Carbonate to substitute carbonyl chloride and exchange with Phenolic Esters to produce Diphenyl Carbonate.

本技术用绿色化工产品碳酸二甲酯代替光气与苯酚酯交换生产碳酸二苯酯，是一条清洁生产工艺。

The invention is characterized in low check limit, high sensitivity, repeat application, and wide check air range, and the invention can be used to check various volatile harmful gas, more particularly check the discharge and leaked harmful gas as NO2, SO2, NO, CO, H2S and carbonyl chloride.

由于本发明传感器具有检测限低，灵敏度高，可重复使用，检测气体范围广等特点，故本发明可广泛用于检测人类生产生活环境中的各种挥发性有毒气体，特别适用于工业生产中NO 2 、SO 2 、NO、CO、H 2 S，及光气等有害气体排放合格性的检测及泄漏的检测。

Amides were prepared in good yields under mild and neutral conditions. In chapter three,we simply outlined the applications of biscarbonate in synthesis of pharmaceuticals and their intermediates.

第三章，首先我们介绍了光气的理想替代品——双碳酸酯的物理化学性质及其在医药中间体合成中的应用。

In this dissertation, the practical significance and the recent development of non-phosgene synthesis of N-substituted carbamates are reviewed briefly, as well as the application of ionic liquids in catalysis.

本论文综述了非光气合成N-取代氨基甲酸酯类化合物的现实意义和研究进展，以及离子液体在催化反应中的应用。

Herein, the research ideas of the present work, i.e., the clean syntheses of N-substituted carbamates from amines and alkyl carbamates are derived. Different catalytic systems are introduced, and their activities are also investigated at the same time.

由此确定了以小分子氨基甲酸烷基酯取代光气与有机胺合成N-取代氨基甲酸酯的研究方向，引入并考察了不同催化体系的催化活性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。