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New Method For Synthesis Of Ammonium (ammonia) Of NaY Zeolite And The Catalytic Activity Of NaY*zeolite

Posted on:2013-08-19Degree:MasterType:Thesis
Country:ChinaCandidate:Y LiFull Text:PDF
GTID:2231330374990694Subject:Organic Chemistry
Abstract/Summary:PDF Full Text Request
NaY*zeolite as a solid acid catalyst, owing to its advantages ofexcellent catalytic activity, easy to operate, easy recovery activation, haswidely used in organic synthesis. in this paper Based on the comprehensiveanalysis on both at home and abroad of zeolite and application of based on avast amount of literature, explore into a new no ammonium (ammonia) Thecontent of this paper were disparted into two segments. The first part wasAmmonium (ammonia) of NaY zeolite synthesis and the second part wasAmmonium (ammonia) of NaY zeolite catalytic activity, conducting studies asfollows:1. NaY zeolite as raw materials, changed acid system (single inorganicacid, a single organic acids, inorganic mixed acid, organic acid and inorganicand organic acids mixture mixed acid), by XRD, SEM and test means for thesynthesis and characterization product testing, select the best acid systemwithout ammonia synthesis as type NaY zeolite process line. Research foundthat, for organic and inorganic mixed acid as a system, synthetic noammonium (ammonia) NaY zeolite process route the product yield and its bestperformance2. Using organic and inorganic mixed acid as acid system, and to the soldmolecular sieve as raw material without ammonium synthesis (ammonia) NaYzeolite, discusses the corresponding condition of molecular sieve crystallinity,influence on the performance of the structure. The system in the process ofsynthesis examines the influence factors, and the results show that:. System ofmixed acid which were formic acid and hydrochloric,the reaction time controlin two hours,the temperature was maintained at95degrees,usingacetic-sodium acetate buffer and other conditions to get the product yield andperformanceoptimal.3. In this paper, a PhP(O)HOR-catalyzed Dimerisation of Styrenes in theNaY*zeolite acidic environment,This solvent-free,effective system requiremild reaction conditions and avoid the pollution in environment come from thetransition metals. Other five dimers of styrene derivatives were obtained in the process of the further expansion of substrate based on optimizing reactionconditions.At last,we elucidate the influence of architecture and electroneffects of substrates on the yield of dihydroindene according to the differentsubstrate needs different reaction condition.A series of target Compounds which were synthesized during theexperiment, are characterized the structure by using1H NMR and13C NMR.
Keywords/Search Tags:NaY*zeolite, mixed acid, buffer system, solid acid, coupling
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