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121. Product use: catalysis, regeneration gas filtering, hydrogenation, oil filtering; ethylene, propylene, butadiene, toluene, dimethylbenzene, benzene, ...

122. A series of 4-arylidene-2-phenyloxazol-5-ones were synthesized by the reaction of aromatic aldehydes with hippuric acid under microwave irradiation without catalysis.

123. The catalysis of enzymes causes much more complexity for the isotopic fractionation under microbial actions.

124. The corrosion causes of the catalysis and desulfurization system for heavy oil were analysed through the performance comparison between MDEA and DIPA, and some countermeasures were proposed.

125. The studies on the thin films containing polyoxometalates have drawn more and more attention owing to their potential applications in luminescence, photochromism, magnetism, electrics and catalysis.

126. Two kinds of useful selenoxide reagents are synthesized via the oxidation of selenides by CAN under the condition of phase transfer catalysis.

127. The results showed that stannic chloride had strong catalysis for the esterification of high acid value oil with methanol, stannic chloride catalyst could be reused by recovery.

128. Cyanoethylation of eight alkyl ketones under catalysis of sodium ethoxide gave eight monocyanoethylketones in high yield.

129. The Cu - ben - tonite can adsorp xanthated ion directly, giving catalysis to its oxidization reaction.

130. The dynamic analysis of the catalysis of Methylene blue shows that the degradation of dye under high concentrated solution is first-order reaction.

131. This review describes recent advances in the synthesis of C_2-symmetric chiral bis (oxazoline) ligands and the utility of its metal complexes in the catalysis of asymmetric syn- thesis.

132. Dimethyl phosphonate reacted with acrylonitrile under strong base (sodium alcoholate) or BPO catalysis, and then reacted with malonic aldehyde to give a N-P type fire retardant.

133. The difference of gasoline and diesel yields between the composite and mechanical mixture was elucidated from the structure of composite zeolite and shape-selective catalysis of ZSM-5.

134. "The L1 ligase appears to use strategies of transition-state stabilization and acid-base catalysis similar to those that exist for natural ribozymes and protein enzymes,[www.Sentencedict.com] " he said.

135. Glycine was synthesized by phase transfer catalysis in the normal atmospheric temperature and atmospheric pressure.

136. The catalysis of big pore strong acid resin for 1, 4 - butanediol dehydration to tetrahydrofuran is investigated.

137. MFC is anew-fashioned bioreactor that is developed on the basis of electrochemical techniques and uses microorganism as catalysis to convert chemical energy of organic compounds to electric energy.

138. The aqueous organometallic chemistry and catalysis have become more and more important in the study of "GreedChemistry". This paper reviewed the recent progress in this field.

139. The FBC ( fluorous biphase catalysis ) is a new nonaqueous immobilization and phase - separation technique.

140. Bridged polynuclear structure exists widely in the active sites of the metalloprotein and metalloenzyme in organisms that makes a great impact on their physiology and catalysis.

141. Binuclear complexes containing metal-metal interactions have been extensively studied due to their unique structures and properties including catalysis and spectroscopy.

142. The use of zeolites in the field of multi-phase catalysis, characterization of zeolites , self-heating and modification of zeolites are summarized.

143. The application and research on the tungstic catalysts are reviewed in petroleum processing and petrochemicals , including hydrocracking, hydrofining(sentencedict.com), catalytic oxidation and acidic catalysis.

144. Knowledge in the fields of petrol chemistry , chemical engineering, catalysis, etc.

145. Methods Chalcone derivatives were synthesized from benzaldehyde derivatives and acetophenone by using weak alkali potassium carbonate as based catalyst in water via phase - transfer catalysis.

146. The affection of the amount of catalysis, reaction time, the ratio of hexanoic acid and alcohol was discussed.

147. Meanwhile, because of the simple preparation, the high catalytic activity and the environmental protection, heteropoly compound is widely used in the area of catalysis.

148. In certain cases, conformational entropy appears to play a role in cooperative binding and enzyme catalysis.

149. Pentachlorobenzene cyanide was synthesized by means of gas solid catalysis and chlorination using cyanobenzene and chlorine as the raw materials.