caa a22 4500 469059826 CHVBK 20180323132853.0 cr unu---uuuuu 170328e19920601xx s 000 0 eng 10.1007/BF01053641 doi (NATIONALLICENCE)springer-10.1007/BF01053641 Crystallisation of zeolite mordenite and ZSM-5 without the aid of a template [Elektronische Daten] [P. Joshi, A. Shaikh, V. Chumbhale, B. Rao, V. Shiralkar] Zeolites ZSM-5 and mordenite were synthesized without the aid of a template, in the gel composition ofXSiO2 : Al2O3 :YNa2O: 1500 H2O, whereX = 20-40 andY = 3.5-10.0 at 463 K. After 48 h of crystallisation the aluminosilicate gel system yielded either ZSM-5 or mordenite and their mixtures as zeolitic phases in addition to α- quartz depending on the variation in oxide mole composition. Transformation of crystalline ZSM-5 to mordenite was accompanied by a lower yield of solid product as a result of an increase in SiO2/Al2O3 and Na2O/SiO2 ratios in the aluminosilicate gel. At constant Na2O/SiO2 ratio, the decrease in SiO2/Al2O3 in the gel mixture was operative in lowering the product SiO2/Al2O3 ratio. Similarly, at constant SiO2/Al2O3 the increase in Na2O/SiO2 in the gel decreased the product SiO2/Al2O3 ratio. The mordenite obtained was found to be of the small port variety. Crystalline phases obtained were further characterised by XRD, IR, SEM and sorption studies. Kluwer Academic Publishers, 1992 Zeolite synthesis nationallicence small port mordenite nationallicence ZSM-5 nationallicence IR nationallicence XRD nationallicence sorption properties nationallicence Joshi P. National Chemical Laboratory, 411 008, Pune, India aut Shaikh A. National Chemical Laboratory, 411 008, Pune, India aut Chumbhale V. National Chemical Laboratory, 411 008, Pune, India aut Rao B. National Chemical Laboratory, 411 008, Pune, India aut Shiralkar V. National Chemical Laboratory, 411 008, Pune, India aut Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 13/2(1992-06-01), 171-179 0923-0750 13:2<171 1992 13 10847 https://doi.org/10.1007/BF01053641 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01053641 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Joshi P. National Chemical Laboratory, 411 008, Pune, India aut NATIONALLICENCE 700 1- Shaikh A. National Chemical Laboratory, 411 008, Pune, India aut NATIONALLICENCE 700 1- Chumbhale V. National Chemical Laboratory, 411 008, Pune, India aut NATIONALLICENCE 700 1- Rao B. National Chemical Laboratory, 411 008, Pune, India aut NATIONALLICENCE 700 1- Shiralkar V. National Chemical Laboratory, 411 008, Pune, India aut NATIONALLICENCE 773 0- Journal of inclusion phenomena and molecular recognition in chemistry Kluwer Academic Publishers 13/2(1992-06-01), 171-179 0923-0750 13:2<171 1992 13 10847 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer