ChemInform Abstract: Preparation of High‐silica Faujasites by Treatment with Silicon Tetrachloride.

Beyer, H.K.; Belenykaja, I. M.; Hange, F.; Tielen, Mia; Grobet, Piet J.; Jacobs, Peter A.

doi:10.1002/chin.198604036

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Step 1: Dealumination Procedures1

Note Added In Proof;1

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2018

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“…According to the method of Beyer et al, 2 g of the original Y zeolite were placed in the powder form in a tubular quartz reactor. 35 The reactor temperature was then increased under nitrogen flow to 350°C at a rate of 10°C.min -1 and kept at this value for 2 hours to achieve a complete dehydration of the zeolite. After cooling down to 250°C, the nitrogen flow passing through the zeolite bed was saturated at room temperature with silicon tetrachloride.…”

Section: Step 1: Dealumination Proceduresmentioning

confidence: 99%

High-silica hollow Y zeolite by selective desilication of dealuminated NaY crystals in the presence of protective Al species

et al. 2018

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Section: Step 1: Dealumination Proceduresmentioning

confidence: 99%

High-silica hollow Y zeolite by selective desilication of dealuminated NaY crystals in the presence of protective Al species

et al. 2018

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“…Since this paper was submitted for publication, a paper has appeared describing the preparation of high-silica faujasites by treatment with silicon tetrachloride. 28…”

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confidence: 99%

Zeolites treated with silicon tetrachloride vapour. Part 1.—Preparation and characterisation

Anderson¹,

Klinowski²

1986

J. Chem. Soc., Faraday Trans. 1

131

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Crystalline materials with Si/Al ratios ranging from 2.5 to over 100 have been prepared by treating zeolites with silicon tetrachloride vapour at elevated temperatures. Most of the work described involves zeolite Y (synthetic faujasite), but other wide-pore zeolites, such as mordenite, ZSM-5, L, omega (synthetic mazzite) and ferrierite, are also amenable to SiC1, treatment. We describe the method of preparation of high-silica zeolites and the application of an array of techniques to monitor the degree of crystallinity, unit-cell parameters, the Si/Al ratio and hydrophobicity of the products. Also described are the effects of treatment of wide-pore zeolites with some other inorganic halides.

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ChemInform Abstract: Preparation of High‐silica Faujasites by Treatment with Silicon Tetrachloride.

Abstract: Die Dealuminierung eines NaY‐Zeolithes mit SiCl4 gemäß Gleichung A führt nur dann reproduzierbar zu hoch kristallinen Materialien, wenn unter exakt kontrollierten Bedingungen gearbeitet wird.

Cited by 2 publications

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High-silica hollow Y zeolite by selective desilication of dealuminated NaY crystals in the presence of protective Al species

High-silica hollow Y zeolite by selective desilication of dealuminated NaY crystals in the presence of protective Al species

Zeolites treated with silicon tetrachloride vapour. Part 1.—Preparation and characterisation

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