アニリン製造技術の進歩について

概要

論文の詳細を見る
The first commercial manufacturing process of aniline was developed by Bechamp and Perkin based on the reduction of nitrobenzene under the presence of iron powder and acid in the 1850s. Generally speaking, we may well say that what sort of manufactuning processes are employed at a certain era depends on various factors such as market size of the product which influences the scale of the production facilities, the availability of raw materials, equipment and the control system at such time. In the field of aniline production technology, the amination process of chlorobenzene was developed in the 1930s which was followed by the invention of the catalytic hydrogenation of nitrobenzene in 1950s after world war II. The latter is an innovative technology and was applied to a number of commercial plants in the form of various reaction technologies such as vapour phase, liquid phase, fixed catalyst-bed, fluidized catalyst-bed. In the 1960s, the amination process of phenol was invented and the first commercial plant in the world based on such process was built in Japan. However, it appears that for the manufacture of aniline, both old and new processes are utilized in the world today as is evidenced by the fact that all the above mentioned processes except the amination process of chlorobenzene are still used. The basic reason for this phenomenon is that each process has its own advantages either in raw material supply sources or reaction conditions or utilization of by-products and all of them can be competitive in one way or another with respect to the yields, product quality, etc. Thus, aniline manufactures today can choose, out of the three processes, the most advantageous process which suit best their local conditions such as available raw material sources and product quality requirements and marketing capability.
社団法人有機合成化学協会の論文

アニリン製造技術の進歩について

スポンサーリンク

概要

著者

関連論文

スポンサーリンク