 Posted: Sun 16:33, 19 Dec 2010 Post subject: air jordan shoes cheap Secondary growth synthesis |
|
| FAU zeolite secondary growth method Synthesis and characterization of membrane
. Preparationoffaujasitemembranesandtheirpermeationproperties [J]. SepPutTechnol ,2001,25:261-268 .112 lNikolakisV, XomeritakisG, AbibiA. Growthofafauja-site--typezeolitemembraneanditsapplicationinthesep-arationofsaturated/unsaturatedhydrocarbonmixtures [J]. JMembrSci ,2001,air jordan shoes cheap,184:209-219. [13] Zhang Xiongfu, LIU Hai-ou, KingLunyeung, and so on. Clear Solutions secondary growth NaA zeolite membrane thickness of the growth mechanism and the control synthesis [J]. Chem, 2005,26 (5) :806-810. WANGJiping,ugg prezzo, LjULOuan, SHAOGuolin, LIUChang, WANGJinqu (StateKeyLaboratoryofFineChemicals,ed hardy clothing, InstituteofAdsorptionandInorganicMembrane, DalianUniversityofTechnology, Dalian116012, China) Abstract: ContinuousultrafinecrystalFAUmembranesweresynthesizedhydrothermallyontheoutersurfaceofa-aluminasupporttube (12n'lIno. D,air jordans, and8n'lIni. D.). Themolarcompositionofthestartinggelwas46Na20: 12.8SiCh: 1A1, 03:4500 H2O. Surface-modifiedtubeswereseededwithzeoliteXcrystalspriortomembranesynthesis. Theseedlayerwithuniformcrystalsizethatwas38larger38theaverageporediameterofthealuminasupportsonthesubstratefavoredtheformationofacontinuoustop-layerzeolitemembraneduringthegrowth. Thesubstratesurfacewasimprovedsignificantly,ugg milano, and3uniformandsmoothseedlayerwasformedbyseeding. TheouterSUlfaceofthetubeiscompletelycoveredwithzeolitecrystalsandthethicknessofthemembraneisabout6-7um. ThemeasuredpermeabilityofH2isabout1.46 × 10-6molt (m2 ? s ? Pa), andtheidealselectivityofH2/SF6is9.67, whichishigherthantherespectiveKnudsendiffusionratioof8.54. Themechanismofmembraneformationwasinvestigated. Keywords: FAU - typezeolite; zeolitemembrane; hydrothermalsynthesis; crystalseeds; mechanism 相关的主题文章： ugg milano Special Pneumatic Machinery Co., Ltd. Z ugg prezzo Pulsed laser evaporation of targets prepared by melt textured YBa2Cu3 air jordans Design parameters of air-conditioning |
|
