Deactivated palladium catalysts in the hydrogenation of anthraquinone were regenerated with ethanol, nitric acid, hydrogen peroxide, boiling water and steam, respectively. The deactivated and regenerated catalysts were characterized by XPS, ICP, TG, FTIR, TPD, XRD, etc., and studied in the hydrogenation of anthraquinone. The results showed that the main cause of catalyst deactivation is the coverage of the active component by deposits. The treatments by hydrogen peroxide and boiling water can effectively regenerate the deactivated catalysts.Anthraquinone route, palladium catalyst, deactivation, regeneration

Anthraquinone working solutions used in hydrogen peroxide manufacture were selected as the test system to investigate the flow pattern transition behavior of foaming system in the trickle bed reactor (TBR) with the method of measurement and analysis of the instantaneous pressure drop fluctuations. The boundaries and the corresponding flow map for the foaming system were established for TBR packed with different size particles. It was found that the size of particles shows significant effect on the flow regime distributions. A theoretical model proposed by Cheng and Yuan and an empirical correlation by Bartelmus and Janecki were used to predict boundaries of the flow pattern transition for anthraquinone working solutions. Comparison between estimation and experimental results showed that the predicted boundaries of Cheng and Yuan theoretical model are consistent with the observations in the present work.

以水热法合成了铜磷铝分子筛（Cu-AIPO4-5），并用XRD，ICP，SEM，FT-IR，NH3-TPD，H2-TPR，ESR和N2吸附脱附等手段对样品进行了表征结果表明，所合成的Cu-AIPO4-5分子筛具有AFI拓扑结构，结晶度高，无结晶态杂质；Cu2+进入到分子筛的骨架结构中，并使其Lewis酸和Brosled酸中心数量增加，弱酸性中心大大增强，强酸性中心消失；样品中的Cu存在多种形式，以骨架Cu物种为主，还存在有骨架外Cuo和双核Cu物种，部分样品具有缺陷结构Cu-AIPO4-5分子筛中存在着骨架Cu和缺陷结构两种可能的活性中心，对苯液相氧化具有良好的催化性能，苯酚选择性可达96%，收率可达6.9%

The possibility of the integration of the processes ofH2O2 generation through isopropanol partial oxidation and ammoximation of cyclohexanone with H2O2 and NH3 TS-1 catalysed was investigated. The ammoximation of cyclohexanone over TS-1 with isopropanol as solvent was first studied. The results show that isopropanol can be used as solvent, and the impurities in the H2O2 solution obtained through isopropanol oxidation with only acetone needing to be separated have no harmful effects on the ammoximation of cyclohexanone, suggesting that the process of H2O2 generation through isopropanol oxidation and the ammoximation of cyclohexanone could be directly integrated.

The ammoximation of acetone to acetone oxime with 30wt.% hydrogen peroxide over TS-1 has been studied. The conversion of acetone and the selectivity to acetone oxime can reach 99% and 94%, respectively. The by-products are the corresponding hydrazone, imine and small amounts of unidentified compounds. The influence of various parameters such as solvent, temperature, amounts of catalyst and the NH3 to acetone molar ratio were investigated. Keywords: Acetone oxime, acetone, ammoximation, TS-1, hydrogen peroxide