Synthesis of large zeolite X crystals

被引:33
作者
Warzywoda, J [1 ]
Baç, N [1 ]
Sacco, A [1 ]
机构
[1] Northeastern Univ, Dept Chem Engn, Ctr Adv Micrograv Mat Proc, Boston, MA 02115 USA
基金
美国国家航空航天局;
关键词
zeolite X; crystal growth; large zeolite crystals; hydrothermal synthesis;
D O I
10.1016/S0022-0248(99)00235-3
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
Large crystals of zeolite X with diameters up to 340 mu m have been synthesized from gels with the composition 4.76Na(2)O : 1.0Al(2)O(3) : 3.5SiO(2) : 454H(2)O : 5-8.5TEA. The syntheses were conducted using aqueous slurries of Cab-O-Sil M-5 or Aerosil 200 fumed silica, and sodium aluminate solutions containing triethanolamine made with sodium hydroxide and aluminum wire or sodium aluminate powder. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:539 / 541
页数:3
相关论文
共 16 条
[11]   Investigation of sorption and transport of sorbate molecules in crystals of MFI structure type by iodine indicator technique [J].
Kocirik, M ;
Kornatowski, J ;
Masarik, V ;
Novak, P ;
Zikanova, A ;
Maixner, J .
MICROPOROUS AND MESOPOROUS MATERIALS, 1998, 23 (5-6) :295-308
[12]  
MULLER U, 1989, STUD SURF SCI CATAL, V46, P625
[13]   A REINVESTIGATION OF CRYSTAL STRUCTURE OF ZEOLITE HYDRATED NAX [J].
OLSON, DH .
JOURNAL OF PHYSICAL CHEMISTRY, 1970, 74 (14) :2758-+
[14]   MICROPROBE ANALYSIS OF TYPE-X MOLECULAR-SIEVE [J].
WEEKS, TJ ;
PASSOJA, DE .
CLAYS AND CLAY MINERALS, 1977, 25 (03) :211-213
[15]   OPTICAL 2ND HARMONIC-GENERATION (SHG) ON P-NITROANILINE IN LARGE CRYSTALS OF ALPO4-5 AND ZSM-5 [J].
WERNER, L ;
CARO, J ;
FINGER, G ;
KORNATOWSKI, J .
ZEOLITES, 1992, 12 (06) :658-663
[16]   PERMEATION THROUGH A SINGLE-CRYSTAL OF ZEOLITE NAX [J].
WERNICK, DL ;
OSTERHUBER, EJ .
JOURNAL OF MEMBRANE SCIENCE, 1985, 22 (01) :137-146