Nanjing University

Guilin Jiqi Pharmaceutical Co., Ltd.

Yue Dai

Zhibing Zhang

Zheng Zhou

Lei Li

Gaodong Yang

Weimin Meng

Pingkeng Wu

Guannan Wang

Wencai Ye

Xiaodong Cong

Xingxiang Zhu

Shouxun Zhao

Xiaojuan Liu

An immersion fixed bed reactor intensified by liquid flow contains a cylindrical tank internally installed with an annular cylindrical catalyst bed (ACCB) packed with solid catalysts is provided. The inner and outer walls of the ACCB are composed of two layers of stainless steel sheets with holes. The outer layer of stainless steel perforated with holes. The inner layer of catalyst contacting stainless steel is covered with stainless steel waved mesh in circumferential direction. The bottom of AACB is sealed with a steel plate by welding or a blind plate and the top of ACCB is fixed to cylindrical tank with a flange. The solid catalysts are packed in the ACCB.

Immersion fixed bed reactor intensified by liquid flow

A green treatment process for cleaning exhaust gas generated in the air oxidation of benzene homologs is disclosed. It takes the hot pressurized exhaust gas generated in the benzene homolog air oxidation process as driving power and heating source: firstly, introducing the said exhaust gas into a turbine refrigerator so that it can drive the refrigerator to generate the cooling capacity that will be utilized for condensing the gas phase in the upper part of the flash evaporator and for trapping organics entrained in the exhaust gas; then, leading the exhaust gas with lowered temperature and pressure into corresponding heat exchangers to provide a part of heating source for the flash evaporator and to preheat the reaction raw materials. Furthermore, introducing the condensed exhaust gas into a water absorption scrubber for further removal of trace organics entrained therein.

Green treatment process for cleaning exhaust gas generated in air oxidation of benzene homologs

This invention relates to new Gymnemic acid derivatives, their preparation, pharmaceutical composition or extract which contains them, and their medical use, especially the use in the prevention or treatment of the diseases associated with hyperglycemia, hyperlipidemia and platelets aggregation.

Gymnemic acid derivatives, process for the preparation thereof and use thereof as medicine

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Nanjing, China

Yue Dai