Slip casting process for the manufacture of tubular alumina microfiltration membranes

• Autorzy: Falamaki C. , Beyhaghi M.
• Języki publikacji: EN

Abstrakty

EN

A thorough investigation of the slip casting process for the manufacture of tubular alumina microfiltration membranes is presented. For this means an initial powder of an average particle size of 2 žm and broad size distribution (up to 10 žm) for imparting initial large pores during the slip casting process was used. The dispersing ability of sodium carboxymethylcellulose (Na-CMC) and Tiron (C6H4O8S2Na2źH2O) for slips containing 40, 50 and 60 wt. % of alumina was studied. It was shown that Na-CMC is not able to act as a proper dispersant. The kinetics of the slip casting process and time dependences of cast twodimensional profile were investigated in function of slip concentration. The effect of sintering temperature on the pore microstructure of the final products was investigated. In all cases, the cross sections of the tubular membranes consisted of two regions: an inner thick section, consisting of relatively large pores, and a thin outer section, consisting of smaller pores. This phenomenon was attributed to Na-CMC migration during drying prior to sintering. The ratio of the thicknesses of the two sections depended on the slip concentration and sintering temperature. The average permeable pore size, based on dry nitrogen permeability experiments, was in the range of 0.13-0.24 žm. The controlled use of partial binder migration during cast drying for the production of graded microfilter membranes was addressed.

Słowa kluczowe

EN

slip casting; alumina; membrane; Na-CMC; Tiron

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2009
• Tom: Vol. 27, No. 2
• Strony: 427--441
• Opis fizyczny: Bibliogr. 26 poz.

Twórcy

autor

Falamaki C.

autor

Beyhaghi M.

• Ceramics Department, Materials and Energy Research Center, P.O. Box 14155-4777, Tehran, Iran

Bibliografia

• [1] KHEMAKHEM S., BEN AMAR R., BEN HASSEN R., LARBOT A., BEN SALAH A., COT L., Ind. Ceram., 24 (2004), 207.
• [2] ISMAGILOV Z.R., SHKRABINA R.A., KORYABKINA N.A., KIRCHANOV A.A., VERINGA H., PEX P., React. Kinet. Catal. Lett., 60 (1997), 225.
• [3] NIJMEIJER A., HUISKES C., SIBELT N.G.M., KRUIDHOF H., VERWEIJ H., Am. Ceram. Soc. Bull. 77 (1998), 95.
• [4] KIM K.H., CHO S.J., YOON K.J., KIM J.J., HA J., CHUN D.II, J. Membrane Sci., 199 (2002), 69.
• [5] BANNO T., SANO S.and ODA K., , J. Am. Ceram. Soc., 81 (1998), 2933.
• [6] CESARINO III J., AKSAY I.A., J. Am. Ceram. Soc., 71 (1988), 1062.
• [7] RUYS A.J., SORREL C.C., Am. Ceram. Soc. Bull. 69 (1990), 828.
• [8] RUYS A.J., SORRELL C.C., Am. Ceram. Soc. Bull., 75 (1996), 66.
• [9] HIDBER P.C., GRAULE T.J., GAUCKLER L.J., J. Eur. Ceram. Soc., 17 (1997), 239.
• [10] EVANKO C.R., DZOMBAK D.A., NOVAK J.W.Jr., Coll. Surf. A: Physicochem. Eng. Asp., 110 (1996), 219.
• [11] BRISCOE B.J., KHAN A.U., LUCKHAM P.F., J. Eur. Ceram. Soc., 18 (1998), 2141.
• [12] SINGH B.P., MENCHAVEZ R., TAKAI C., FUJI M., TAKAHASHI M., J. Coll. Interf. Sci., 291 (2005), 181.
• [13] JIANG L., GAO L., Mat. Chem. Phys., 80 (2003), 157.
• [14] TSETSEKOU A., AGRATIOTIS C., MILIAS A., J. Eur. Ceram. Soc., 21 (2001), 363.
• [15] KHAN A.U., BRISCOE B.J., LUCKHAM P.F., Coll. Surf. A: Phys. Eng. Asp., 161 (2000), 243.
• [16] FALAMAKI C., VEYSIZADEH J., J. Membrane Sci., 280 (2006), 899.
• [17] FALAMAKI C., AGHAIE A.and ARDESTANI N.R., J. Eur. Ceram. Soc., 21 (2001), 2267.
• [18] TARI G., FERREIRA J.M., LYCKFELDT O., J. Eur. Ceram. Soc., 18 (1998), 479.
• [19] RICHARDSON D.W., Modern Ceramic Engineering: Properties, Processing, and Use in Design, Marcel Dekker, New York, 1992, p. 447.
• [20] FALAMAKI C., NAIMI M., AGHAIE A., J. Eur. Ceram. Soc., 26 (2006), 949.
• [21] FERREIRA J.M., J. Eur. Ceram. Soc., 18 (1998), 1161.
• [22] LINIGER E.G., RAJ R., J. Am. Ceram. Soc., 71 (1988), C-408.
• [23] IGA T., J. Ceram. Soc. Japan, 104 (1996), 1143.
• [24] FALAMAKI C., AFARANI M.S., AGHAIE A., J. Eur. Ceram. Soc., 24 (2004), 2285.
• [25] ZHENG J.and REED J.S., J. Am. Ceram. Soc., 72 (1989), 810.
• [26] WHITTEMORE O.J., SIPE J.J., Powder Techn., 9 (1974), 159.