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Propylene oxide (Propylene Oxide, PO) is an important organic chemical raw materials, can be used to an important raw material for the production of unsaturated polyester resins, polyurethane, surfactants, etc., are widely used in the chemical industry, light industry, medicine, food, textile and other industries. So far, industrial the existing propylene oxide production methods the epichlorohydrin and Halcon law, serious pollution of the former, while the latter is large-scale investment by linking product sales and product economy. Phase Epoxidation of Propylene production of propylene oxide is a hot topic of current research, environmentally friendly, mild operating conditions and other characteristics. This paper studies the alkali solution KOH, NaOH as the precipitating agent prepare Ag/TS-1 catalyst, propylene, air, hydrogen gas as the raw material Phase Epoxidation of Propylene performance is investigated at atmospheric pressure. First investigated using K the prepared 2 CO 3 (aq), KOH (aq), NaOH (aq) different precipitating agent Ag/TS-1 catalyst reaction performance KOH concentration of the solution as well as the Ag loading. Secondly, the use of NaOH (aq) were prepared as the precipitating agent Ag/TS-1 carbonate impregnated with a solution modified with a certain concentration of an alkali metal (K, Rb, Cs), discussed the impregnated alkali metal carbonate solution changed the reaction. In addition, for the use of KOH (aq) as a precipitating agent prepared Ag/TS-1 the catalyst effectively Ag species exist position to conduct a preliminary study, the following conclusions: 1, strong base KOH and NaOH solution also can be used as the preparation of Ag / TS -1 precipitating agent, and Phase Epoxidation of Propylene performance of the prepared KOH as precipitating agent Ag/TS-1 catalyst is superior to to NaOH and K. the 2 CO 3 , has good stability precipitating agent preparation Ag/TS-1 catalyst. 2, KOH solution precipitate the agent preparation Ag/TS-1 is, the amount of load of Ag is epoxidized to propylene gas phase reaction of a greater impact when the Ag loading of 1wt%, the best results. 3, the propylene gas phase epoxidation performance of the concentration of the precipitating agent of KOH of prepared Ag/TS-1 catalyst great influence, 0.05mol / L of the optimum concentration. 4, with NaOH as the precipitating agent prepared Ag/TS-1 catalyst the impregnated carbonate solution modified with a certain concentration of the alkali metal (K, Rb, Cs), the reaction stability are improved, especially in K < sub> 2 CO 3 the impregnation modified the highest catalyst stability.
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