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[求助]
水玻璃,鋁酸鈉,氫氧化鈉合成13X分子篩 已有1人參與
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哪位大神有知道 以水玻璃,鋁酸鈉,氫氧化鈉合成13X分子篩,的具體配比,和合成工序那,,求告知! 查了很多文獻,都說的很模糊,搞不清楚具體怎樣合成! 發(fā)自小木蟲Android客戶端 |
木蟲 (正式寫手)
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你上國際沸石分子篩協(xié)會網(wǎng)站,上面有標準配方。這個是協(xié)會網(wǎng)站http://www.iza-online.org/ 這個是合成配方的網(wǎng)址 http://www.iza-online.org/synthesis/default.htm FAU Linde Type X Si(55), Al(45) Contributed by Hans Lechert and Philip Staelin Verified by D. Ginter, by E. Basaldella, and by E. Fallabella Sousa-Aguiar Type Material Na86Al86Si106O384 : wH2O (w ~ 260) Method H. Lechert, H. Kacirek [1, 2] Batch Composition NaAlO2 : 4 SiO2 : 16 NaOH : 325 H2Oa,b Source Materials distilled water sodium hydroxide (99+% NaOH) alumina trihydrate (Merck, 65% Al2O3) c sodium silicate solution (27.35% SiO2, 8.30% Na2O, 1.37 g/mL) Batch Preparation (for 42 g product) (1) [100 g water + 100 g sodium hydroxide], stir until dissolved (2) [(1) + 97.5 g alumina trihydrate], stir at 100¡C until dissolved, cool to 25¡C (3) [(2) + 202.5 g water], mix (4) [100 g of solution (3) + 612 g water + 59.12 g sodium hydroxide], mix until dissolved (5) [219.7 g sodium silicate solution + 612 g water + 59.12 g sodium hydroxide], mix until dissolved (7) [(4) + (5)], combine quickly and stir for 30 minutesd Crystallization Vessel: polyethylene bottles Temperature: 90¡C Time: 8 hours Agitation: none Product Recovery (1) Filter and wash to pH < 10 (2) Dry at 1000C, equilibrate over saturated aqueous NaCl (3) Yield: near 100% on Al2O3 Product Characterization XRD 100% FAU, a0 = 24.92 Å, competing phases: LTA, GIS, ANA, SOD Elemental Analysis: NaAlO2. 1.24 SiO2f Crystal Size and Habit: spherical aggregates, 0.8 um dia. |
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