High-silica molecular sieve syntheses using the sparteine related compounds as structure-directing agents

1999 ◽  
Vol 28 (3) ◽  
pp. 461-469 ◽  
Author(s):  
K Tsuji ◽  
P Wagner ◽  
M.E Davis
Keyword(s):  
Molecular Sieve ◽  
High Silica ◽  
Structure Directing Agents ◽  
Related Compounds

scholarly journals Alcohol-assisted synthesis of high-silica zeolites in the absence of organic structure-directing agents

2021 ◽  
Vol 42 (4) ◽  
pp. 563-570
Author(s):  
Huimin Luan ◽  
Chi Lei ◽  
Ye Ma ◽  
Qinming Wu ◽  
Longfeng Zhu ◽  
...  
Keyword(s):  
Organic Structure ◽  
High Silica ◽  
High Silica Zeolites ◽  
Structure Directing Agents

Studies on the crystallization of a novel, large-pore, high-silica molecular sieve, NCL-1

Zeolites ◽  
1994 ◽  
Vol 14 (5) ◽  
pp. 326-334 ◽  
Author(s):  
K.Ramesh Reddy ◽  
Veda Ramaswamy ◽  
R. Kumar ◽  
A.V. Ramaswamy
Keyword(s):  
Molecular Sieve ◽  
Large Pore ◽  
High Silica

Ionothermal Synthesis of MnAPO-SOD Molecular Sieve without the Aid of Organic Structure-Directing Agents

2016 ◽  
Vol 55 (4) ◽  
pp. 1809-1815 ◽  
Author(s):  
Hao Liu ◽  
Zhijian Tian ◽  
Lei Wang ◽  
Yasong Wang ◽  
Dawei Li ◽  
...  
Keyword(s):  
Molecular Sieve ◽  
Organic Structure ◽  
Ionothermal Synthesis ◽  
Structure Directing Agents

scholarly journals Catalytic conversion of glucose in fructose utilizing high-silica zeolite Sn-ZSM-12

Cerâmica ◽  
2020 ◽  
Vol 66 (379) ◽  
pp. 221-228
Author(s):  
I. da Silva ◽  
A. O. S. Silva ◽  
J. R. Santos ◽  
R. C. S. Nascimento ◽  
J. M. Ferreira ◽  
...  
Keyword(s):  
Catalytic Conversion ◽  
Isomerization Reaction ◽  
Tetraethylammonium Bromide ◽  
Tetraethylammonium Hydroxide ◽  
High Silica ◽  
Structure Directing Agents ◽  
Tin Content ◽  
Glucose Isomerization

Abstract Tin incorporation in high-silica ZSM-12 zeolite was evaluated using different concentrations of tin and different structure-directing agents (SDA), in order to be used in the glucose isomerization reaction in fructose. The tetraethylammonium hydroxide SDA successfully formed the structure of the high silica zeolite ZSM-12; however, in this system, the addition of Sn prevented the formation of the ZSM-12 zeolite. Therefore, tetraethylammonium bromide was used as SDA, but the syntheses of high-silica ZSM-12 zeolite without and with tin incorporation were not effective. Then methyltriethylammonium chloride was used as SDA, and the high-silica ZSM-12 structure was formed only with the incorporation of tin. The samples with ZSM-12 structure and different concentrations of tin were evaluated in reaction of glucose conversion to fructose. It was found that the sample with the lowest tin content ( Sn / Si = 0 . 005 ) achieved the highest glucose conversion and the highest fructose yield.

VPI-8:  A High-Silica Molecular Sieve with a Novel “Pinwheel” Building Unit and Its Implications for the Synthesis of Extra-Large Pore Molecular Sieves

1996 ◽  
Vol 118 (31) ◽  
pp. 7299-7310 ◽  
Author(s):  
Clemens C. Freyhardt ◽  
Raul F. Lobo ◽  
Shervin Khodabandeh ◽  
John E. Lewis, ◽  
Michael Tsapatsis ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Molecular Sieve ◽  
Building Unit ◽  
Large Pore ◽  
High Silica

ChemInform Abstract: VPI-8: A High-Silica Molecular Sieve with a Novel “Pinwheel” Building Unit and Its Implications for the Synthesis of Extra-Large Pore Molecular Sieves.

ChemInform ◽  
2010 ◽  
Vol 27 (48) ◽  
pp. no-no
Author(s):  
C. C. FREYHARDT ◽  
R. F. LOBO ◽  
S. KHODABANDEH ◽  
J. E. JUN. LEWIS ◽  
M. TSAPATSIS ◽  
...  
Keyword(s):  
Molecular Sieves ◽  
Molecular Sieve ◽  
Building Unit ◽  
Large Pore ◽  
High Silica
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