This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Role of acidic silanols and Brønsted acid sites in hierarchically porous SAPO-34 for the production of eta-caprolactam - TOSCA
Abstract: The commercially important polymer Nylon 6 is manufactured by ring-opening polymerization of eta-caprolactam. Industrially, eta-caprolactam is conventionally made by the Beckmann rearrangement of cyclohexanone oxime, a stoichiometric process that generates large quantities of undesirable by-products. Recent work at Southampton has shown that a hierarchically porous silicoaluminophosphate; HP-SAPO-37, is able to achieve near-quantitative yields of eta-caprolactam at temperatures as low as 130 °C. The interaction of the oxime with acidic silanols and Brønsted acid sites is crucial to the mechanism but this is not well-understood. The aim of this proposal is to investigate a series of catalysts with different types of acidity in order to characterise how the interaction of cyclohexanone oxime varies with the different acid groups and hence provide insight into the reaction mechanism.
Principal Investigator: Professor Robert Raja
Experimenter: Miss Stephanie Newland
Experimenter: Dr Stephanie Richardson
Experimenter: Professor Stewart Parker
Experimenter: Dr Ian Silverwood
Experimenter: Professor Richard Catlow
Experimenter: Dr Alexander O'Malley
DOI: 10.5286/ISIS.E.RB1610057
ISIS Experiment Number: RB1610057
Part DOI | Instrument | Public release date | Download Link |
---|---|---|---|
10.5286/ISIS.E.75421415 | TOSCA | 12 May 2019 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
[doi]
For Example:
Professor Robert Raja et al; (2016): Role of acidic silanols and Brønsted acid sites in hierarchically porous SAPO-34 for the production of eta-caprolactam - TOSCA, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1610057
Data is released under the CC-BY-4.0 license.