Role of crystal growth modifiers in the synthesis of ZSM-12 zeolite

Mohammed A. Sanhoob; Oki Muraza; Eid M. Al-Mutairi; Nisar Ullah

doi:10.1016/j.apt.2014.09.007

Role of crystal growth modifiers in the synthesis of ZSM-12 zeolite

Mohammed A. Sanhoob
, Oki Muraza^*
, Eid M. Al-Mutairi
, Nisar Ullah

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The effects of crystallization time, temperature and aging time on the synthesis of pure ZSM-12 in the presence of polyethylene glycol (PEG) and polyoxyethylene Brij-35 surfactant with fixed ratios of Si/Al (160) and Na/SiO₂ (0.144) were systematically investigated. Larger synthesis window and high purity of ZSM-12 were expected. Pure phase of ZSM-12 was obtained when PEG was added to the synthesis mixture with PEG/Al₂O₃ ratio in the range of 0.4-2. Furthermore, the addition of both Brij-35 and PEG in the synthesis was found to play a significant role in controlling the crystallization rate. The Brij-35/Al₂O₃ ratio was varied from 0 to 4.9. Conventional ZSM-12 was typically synthesized at 145 °C for 120 h. Shorter crystallization time of 60 h was achieved when PEG/Al₂O₃ ratio of 1.22 and a Brij-35/Al₂O₃ ratio of 1.61 was used in the synthesis.

Original language	English
Pages (from-to)	188-192
Number of pages	5
Journal	Advanced Powder Technology
Volume	26
Issue number	1
DOIs	https://doi.org/10.1016/j.apt.2014.09.007
State	Published - 1 Jan 2015

Bibliographical note

Publisher Copyright:
© 2014 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.

Keywords

Brij-35
Crystal growth modifiers
One-dimensional zeolites
Polyethylene glycol
ZSM-12

ASJC Scopus subject areas

General Chemical Engineering
Mechanics of Materials

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10.1016/j.apt.2014.09.007

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title = "Role of crystal growth modifiers in the synthesis of ZSM-12 zeolite",

abstract = "The effects of crystallization time, temperature and aging time on the synthesis of pure ZSM-12 in the presence of polyethylene glycol (PEG) and polyoxyethylene Brij-35 surfactant with fixed ratios of Si/Al (160) and Na/SiO2 (0.144) were systematically investigated. Larger synthesis window and high purity of ZSM-12 were expected. Pure phase of ZSM-12 was obtained when PEG was added to the synthesis mixture with PEG/Al2O3 ratio in the range of 0.4-2. Furthermore, the addition of both Brij-35 and PEG in the synthesis was found to play a significant role in controlling the crystallization rate. The Brij-35/Al2O3 ratio was varied from 0 to 4.9. Conventional ZSM-12 was typically synthesized at 145 °C for 120 h. Shorter crystallization time of 60 h was achieved when PEG/Al2O3 ratio of 1.22 and a Brij-35/Al2O3 ratio of 1.61 was used in the synthesis.",

keywords = "Brij-35, Crystal growth modifiers, One-dimensional zeolites, Polyethylene glycol, ZSM-12",

author = "Sanhoob, \{Mohammed A.\} and Oki Muraza and Al-Mutairi, \{Eid M.\} and Nisar Ullah",

year = "2015",

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AU - Sanhoob, Mohammed A.

AU - Muraza, Oki

AU - Al-Mutairi, Eid M.

AU - Ullah, Nisar

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The effects of crystallization time, temperature and aging time on the synthesis of pure ZSM-12 in the presence of polyethylene glycol (PEG) and polyoxyethylene Brij-35 surfactant with fixed ratios of Si/Al (160) and Na/SiO2 (0.144) were systematically investigated. Larger synthesis window and high purity of ZSM-12 were expected. Pure phase of ZSM-12 was obtained when PEG was added to the synthesis mixture with PEG/Al2O3 ratio in the range of 0.4-2. Furthermore, the addition of both Brij-35 and PEG in the synthesis was found to play a significant role in controlling the crystallization rate. The Brij-35/Al2O3 ratio was varied from 0 to 4.9. Conventional ZSM-12 was typically synthesized at 145 °C for 120 h. Shorter crystallization time of 60 h was achieved when PEG/Al2O3 ratio of 1.22 and a Brij-35/Al2O3 ratio of 1.61 was used in the synthesis.

AB - The effects of crystallization time, temperature and aging time on the synthesis of pure ZSM-12 in the presence of polyethylene glycol (PEG) and polyoxyethylene Brij-35 surfactant with fixed ratios of Si/Al (160) and Na/SiO2 (0.144) were systematically investigated. Larger synthesis window and high purity of ZSM-12 were expected. Pure phase of ZSM-12 was obtained when PEG was added to the synthesis mixture with PEG/Al2O3 ratio in the range of 0.4-2. Furthermore, the addition of both Brij-35 and PEG in the synthesis was found to play a significant role in controlling the crystallization rate. The Brij-35/Al2O3 ratio was varied from 0 to 4.9. Conventional ZSM-12 was typically synthesized at 145 °C for 120 h. Shorter crystallization time of 60 h was achieved when PEG/Al2O3 ratio of 1.22 and a Brij-35/Al2O3 ratio of 1.61 was used in the synthesis.

KW - Brij-35

KW - Crystal growth modifiers

KW - One-dimensional zeolites

KW - Polyethylene glycol

KW - ZSM-12

UR - https://www.scopus.com/pages/publications/84922649111

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DO - 10.1016/j.apt.2014.09.007

M3 - Article

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SN - 0921-8831

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EP - 192

JO - Advanced Powder Technology

JF - Advanced Powder Technology

IS - 1

ER -

Role of crystal growth modifiers in the synthesis of ZSM-12 zeolite

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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