This paper reviews the research and development of phosgene Derivates,including diphenyl ketone,chlorocarbonate,isocya-nate,acyl chloride and carbonates.

本文综述了光气下游精细的开发及生产进展,包括二苯甲酮类、氯代甲酯类、异氰酸酯类、酰氯类、碳酸酯类合物。

It further proved that triphosgene replacing the deadly phosgene and diphosgene is feasible.

进一步明了三光气代替剧毒的光气和双光气可行性。

The article is about how to use phosgene and p-nitrophenylamine to react in acetic ether's liquefier to produce p-nitro-phenyl isocyanate, Its best technological condition have been discussed.

介绍用光气和对硝基苯胺在乙酸乙酯溶剂中制备对硝基异氰酸苯酯的方法，并讨论了其最佳工艺条件。

It has been produced in our country, all by oxalyl chloride technological process.For using oxalyl chloride, so it has high price and low occupy in the market.

本文用光气法路线进行试验，用廉价的光气代替草酰氯制备异氰酸酯，为了降低成本提高收率，我们对杀铃脲的光气法生产路线进行了研究、开发和优。