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

进一步证明了三光气代替剧毒的光气和双光气可行性。

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化学品的开发及生产进展,包括二、代、异氰酸、酰、碳酸化合物。

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制备异氰酸，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、开发和优化。

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胺在乙酸乙溶剂中反应来制备对硝基异氰酸的方法，并讨论了其最佳工艺条件。