The rheology and pressure drop of Tetra-n-Butyl Ammonium Bromide ( TBAB) Clathrate Hydrate Slurry ( CHS) in horizontal pipe flow was investigated through a series of experiments. The TBAB CHS with different volume fraction of solid((?) 通过水平管内四丁基溴化铵(TBAB)水合物浆(CHS)的流动实验,对水合物浆的流变性和摩擦阻力特性进行了研究。
Using nitrobenzene and phenylamine as monomer, quaternary ammonium hydrate as phase transfer main catalyst, and alkali metal hydroxide as additional catalyst, the 4-aminodiphenylamine was synthesized by nitrobenzene method. 以硝基苯、苯胺为单体,季铵碱为相转移主催化剂,碱金属氢氧化物为助催化剂,采用硝基苯法,合成了4-氨基二苯胺。