SYNTHESIS,CHARACTERIZATION OF MESOPOROUS MOLECULAR SIEVE SULPHATED-Al-MCM-?41 AND ITS CATALYSIS ON TERPINEOL ESTERIFICATION

Abstract：A mesoporous molecular sieve Al-MCM-?41 was synthesized directly by hydrothermal method.In this process,crystallization was controlled at 145?℃ and 24～28?h.Al-MCM-?41 was disposed by different ways to prepare SO2-4-Al-MCM-?41.SO2-4-Al-MCM-?41was characterized by XRD,BET and FT-IR measurements.The results show that the skeleton of mesoporous molecular sieves has not been destroyed and the crystallinity was improved.By FT-IR,it was proved that SO2-4 has been incorporated within the skeleton.SO2-4-Al-MCM-?41 was used as catalysts in the reaction of synthesizing terpinyl acetate.The results showed that SO2-4-Al-MCM-?41 synthesized by using 0.25?mol/L H2SO4 to infuse calcined Al-MCM-?41 had the highest catalytic activity.
Keywords：mesoporous molecular sieves； catalysis； terpinyl acetate

SO2-4-Al-MCM-41的合成、表征及對(duì)松油醇酯化的催化作用

李露　 于世濤　 解從霞　 李英春　

摘　要：通過水熱合成法合成出中孔分子篩Al-MCM-?41.合成條件:晶化溫度145 ℃,晶化時(shí)間24～28 h.用不同方法處理Al-MCM-?41得到SO2-4-Al-MCM-?41.通過XRD、BET和FT-IR對(duì)SO2-4-Al-MCM-?41進(jìn)行表征.結(jié)果表明:分子篩的骨架沒有被破壞,結(jié)晶度較好.從FT-IR圖上看出SO2-4已進(jìn)入分子篩骨架內(nèi)部.將SO2-4-Al-MCM-?41用于催化松油醇酯化反應(yīng).氣相色譜分析反應(yīng)結(jié)果表明,用0.25 mol/L H2SO4浸泡焙燒過的Al-MCM-?41得到的SO2-4-Al-MCM-?41催化活性最好.
關(guān)鍵詞：中孔分子篩;催化;乙酸松油脂
CLC Number：O643.322　Document ID：A
Article ID：0253-2417(2002)01-0030-05