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Supported mordenite catalyst properties

diumonmordeniteweres'tudiedbyXPs. Itisshownthatlargenumberofirregularframeworkandsecondaryporewill ~ an ~ rgeonthesllffaceofmordentteasitsdealuminizedextentincreases. ThestrongerBr6nstedacidsiteismainlydistributedontheexternalsurface, themorepalladiumexistsonthesurfaceofmordenite. AnisomerizationoflightpareffinispromotedbytheinteractionbetweenpalladiumandBr6nstedacidsiteonexternalsurfaceofmordelqLire. ・ 68B ・ single spit boxing East China Chemical embedded fournMofE ¨ tChinaInstituteofChemicalTechnologyVoI. 19No. e1903ol2Keywords: zeolite; poresizedistribution; acidity; palladium; secondarypore; catalysis ・: PetroleumProcessingRee4r. hCenter. ECUSTb: DalianInstituteorChemicmlPhysics,[link widoczny dla zalogowanych], ChtneseAcsdemyofScienceRe ~ eiveddste: 19 ~ 03-16 for a Hee Park. Two industrial AI ~ 08 adsorbent structure and properties. Lamb Xu Kang Chen Shaozhou very Zhen (China Institute of Oil Processing plant core moss) a (Zhejiang Institute of Technology) 2 photo to: Time for the purification of terephthalic acid production in the nitrogen cycle of alumina adsorption Jing G (Germany embroidery) and w (Ha production). The T structure and properties. Melting at different temperatures according to the sample of X-ray diffraction patterns, given G, Qi main phases can be a A】 203 'mixed with a small amount of boehmite} w main axis of boehmite phase, mixed with a small amount of intended to boehmite. This conclusion is re-hydrated beans _ after the samples by x-ray diffraction {hand cut certain projects. Yi Gu Two alumina adsorption pore structure,[link widoczny dla zalogowanych], surface properties and adsorption performance have shown significant differences. Therefore, in applications not easily interchangeable substitute. Key words: In former times he crystal structure of Al I absorption; hole by City; acid in leap Key words: 1. Q424 tarsal agent activated alumina suction performance with its crystal phase,[link widoczny dla zalogowanych], pore structure and surface chemistry of Mu is closely related to quality. Aqueous solution of aluminum oxide obtained by the aluminum. Different preparation methods or conditions of lemma can be made of alumina of different hydration states, they have different crystalline phases and properties. The hydration state during the calcination of alumina will be issued in the raw series of phase l changes. There are eight or more of alumina crystal clear, some researchers have basically changes between the various crystalline patterns. 】, But the actual preparation of the alumina is difficult to obtain high purity product of a single crystal,[link widoczny dla zalogowanych], to Choi in the final of a crystalline-based products have other confounding such as crystalline boehmite in mixed with Pai Pai alumina or a mixture of zircon in the gibbsite is possible \Preparation of toluene oxidation process of terephthalic acid, used two purified nitrogen cycle activated alumina. on their crystal structure, pore structure and surface chemistry, we are studied. on their interchangeability in the use made the judge. 1 Experimental 1.1 Sample two samples of alumina sorbent, are about 3mm in diameter, industrial samples. Alumina G is imported from Germany, aluminum oxide W is made in China, hoping to become aluminum oxide G alternatives. two major impurities in the sample shown in Table 1. Rigaku 3080E3 analysis of data using X-ray fluorescence spectrometer was guillotine. 1.2 Determination of pore size distribution and calculated adsorption isotherms of ammonia at low temperature the experimental determination in the United States MicromeriticsInstrumentCotp. production of automatic than

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