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Effect of organic species on the synthesis and properties of ZSM-5

✍ Scribed by Abraham Araya; Barrie M. Lowe

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 664 KB
Volume: 6
Category: Article
ISSN: 0144-2449
DOI: 10.1016/s0144-2449(86)80007-0

No coin nor oath required. For personal study only.

✦ Synopsis

The synthesis and properties of ZSM-5 zeolites crystallized from the reaction mixture 10Na20 AI203 60SiO2 3000H20 10 organic (organic = tetrapropylammonium bromide, hexane-1, 6-diol, hexane-1, 6-diamine or piperazine) at 150°C are compared with those of 'organic free' ZSM-5. It is shown that the organic species has a marked effect on the composition and excess cation content of the product• Only the tetrapropylammonium ion is considered to be a true structure directing template, piperazine and hexane-1, 6-diol act as hydrophobic void fillers, and hexane-1, 6-diamine holds an intermediate position•

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