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181) We have prepared several complex catalyst of stannous chloride and rare earth chloride to replace mercuric chloride and examined their catalytic activity for the synthesis of vinyl chloride.

182) In aminating reaction of ethyl N-(2, 4-dimethylphenyl) formimidate some reagents are first used as catalyst and a better one is sifted out from many catalysts.

183) Macrocyclic polyamine metal complexes as enzyme models are widely used in molecular recognition, catalyst, fluorescent probe, self-assembling.

184) Activated carbon as the sorbent and catalyst support was capsulated with ethyl cellulose by phase separation methods.

185) External catalyst cooler is located between hot oil pump room, regenerator and catalyst tank, very difficult to be hoisted.

186) The catalyst was tested on a small scale hydrocracking apparatus.

187) The results obtained show that pillared rare earth catalyst has higher catalytic activities and narrow molecular weight distribution, and does not corrode metal, which makes it environmental friendly.

188) The diisobutyl dicarboxylate was prepared by using acid and isobutanol as material and acid as catalyst.

189) The method removes impurities by synthesis process and self-reduction process of the catalyst and realizes metallization of the active component and high dispersion.

190) Acid treatment of catalyst enhanced isobutene conversion of MTBE reaction.

191) The influence factors esterification reaction, such catalyst amount , acid alcohol mole ration, reaction time were investigated.

192) The etherification activity of the deactivated E-01 catalyst can be completely recovered by coke-burning regeneration.

193) In this paper(http://sentencedict.com), the methyl cinnamate was synthesized from cinnamate acid and methanol by using strongly acidic ion exchange resin as catalyst.

194) Methyl 1 phenyl Propanone was synthesized with benzene and iso butyryl chloride by using anhydrous aluminium trichloride as catalyst.

195) Synthesis of methyl formate (MF) by carbonylation of methanol with only sodium methoxide as catalyst exists some shortages, such as low activity, rapid loss of activity and short catalyst life.

196) The invention discloses a kind of catalyst distillation module and uses this module the catalyst distillation method.

197) ' secondly, there is growing intra - regional trade among Asian countries, with China as a principal catalyst. ".

198) N-octyl bromide was synthesized by hydrobromic method in which took n-octanol and industrial waste hydrobromic acid(48%) as materials, concentrated sulfuric acid as a catalyst.

199) Refining lubricating base oil using FCC used catalyst mixing with clay was studied. The conclusion is confirmable. It can give a reference basis to production and application.

200) Usually a pipe, known as a dip leg, is connected to this bottom outlet and, in catalytic cracking, serves to convey the solids back to the catalyst bed.

201) In this paper , acetalization of 3 - bromo - propanal and 2 - alkyl - 1,3 - propanediol by using p - toluenesulfonic acid monohydrate (Ts OH) as catalyst was studied .

202) This paper deals with the kinetics of the reactions of synthesizing adiponitrile from gaseous ammonia and molten liquid adipic acid with phosphoric acid as catalyst.

203) Metallocene catalyst is a new kind of catalyst having homogeneous-site, molecule tailing capability and controlled structure. It can be used to synthesize special function polyolefine.

204) We should also choose a catalyst that is resistant to attrition and breakage.

205) In this paper, potassium chlorate is researched aboutthermo - dissociation by thermogravimetry ( TG ) on condition without or with catalyst.

206) The route for synthesizing the prepolymer based on toluene diisocyanate(TDI), trimethylol propane(TMP) and 1,4 butanediol(1,4 BD) in presence of catalyst has been described .

207) Coke deactivation of alkylation catalyst exhibited independent deactivation mechanism basically in supercritical phase.

208) The reaction of benzotrichloride and chloroacetic acid to form chloroacetyl chloride and benzoyl chloride in the presence of catalyst was studied.

209) Ordered mesoporous carbon was successfully prepared using siliceous MCM-48 as template, p-toluenesulfonic acid (PTSA) as catalyst, and furfuryl alcohol as carbon source.

210) The catalyst pretreatment method ensures that the outlet pressure of the catalyst feed pump is remarkably lower, and catalyst feed is stable without blocking.