Examination of Milstein Ru-PNN and Rh-Tribi/Tetrabi dual metal catalyst for isomerization-linear-hydroformylation of C4 raffinate and internal olefins
Abstract
Isomerization-linear-hydroformylation is demanding, however, not an addressed issue, for production of value-added linear aldehydes by converting cheap and abundant internal alkenes available from bio- & petrochemical industry. In this paper, a dual metal catalysis system combining a Ru-isomerization catalyst and a Rh-linear-hydroformylation catalyst satisfying the "4S" criterions was reported for isomerization-linear-hydroformylation of C4 raffinate (mixed butenes) and internal olefins. The optimized dual metal catalyst system hydroformylated Raffinate II feed to valuable valeraldehyde in 98% linear selectivity (n:i = 49), 80% conversion and high activity of 1069 h⁻¹ TOF whereas 96% linear selectivity (n:i = 24), 71% conversion and 948 h⁻¹ TOF were observed using only the Rh-hydroformylation catalyst. Notably, valeraldehyde are produced in million tons scale annually for making non-toxic plasticizer DPHP. Various 2-olefins were also converted to linear aldehydes in > 98% linear selectivity (n:i > 49), 78%–82% conversion and high activity of 802–851 h⁻¹ TOF.
Additional Information
© 2021 Fudan University. Publishing Services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Received 8 September 2021, Revised 27 October 2021, Accepted 28 October 2021, Available online 1 November 2021, Version of Record 9 March 2022. R. Zhang gratefully acknowledges the Free Exploration Fund from the Science and Technology Innovation Committee of Shenzhen (No. JCYJ20170817104824122). We are grateful for the financial support from National Natural Science Foundation of China (No. 22001113) and Guangdong Provincial Key Laboratory of Catalysis (No. 2020B121201002). The authors declare no conflict of interest.Attached Files
Published - 1-s2.0-S2666554921000910-main.pdf
Supplemental Material - 1-s2.0-S2666554921000910-mmc1.docx
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Additional details
- Eprint ID
- 112145
- Resolver ID
- CaltechAUTHORS:20211201-183650323
- JCYJ20170817104824122
- Science and Technology Innovation Committee of Shenzhen
- 22001113
- National Natural Science Foundation of China
- 2020B121201002
- Guangdong Provincial Key Laboratory of Catalysis
- Created
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2021-12-01Created from EPrint's datestamp field
- Updated
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2022-03-25Created from EPrint's last_modified field