年产1000吨的苯甲醛生产工艺(2)

毕业论文 年产1000吨苯甲醛生产工艺

Annual output of 1,000 tons of benzaldehyde production process

Yang min

(Anhui Polytechnic University ,Chemical Engineering and Technology 2073,3072109327)

Abstract

As an important species of organic compound benzaldehyde was widely used in synthesis of many kinds of chemicals，such as pharmaceuticals，spiceries，cosmetics，dyes，pesticide，etc.Studying theoretically and practically on the methods for its preparation has been all along a significant project for the chemist，since it has both good economic benefits and high academic values.

At present，green reaction，small equipment，integrated process is the development trend of chemical and chemical industry.The development of safe，clean and efficient production process has become an urgent task of chemistry and chemical industry. Then, this paper focused on the conversion of the toluene was oxidized to benzaldehyde in subcritical water by using hydrogen peroxide and without any catalysts. And a series of material balance calculations, energy and simple economic accounting, thus designed the complete process. Drawing process with the main control point map for section in equipment design, selection, preparation equipment list. Draw the main equipment structure. In the mass production of benzaldehyde today,there is important significance.

Key words: benzaldehyde；subcritical water；no catalysts；formaldehyde production process