Sodium nitrate modified SBA-15 and fumed silica for efficient production of acrylic acid and 2,3-pentanedione from lactic acid

Junfeng Zhang, Xinzhen Feng, Yuling Zhao, Weijie Ji*, Chak Tong AU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

The catalytic conversion of lactic acid to acrylic acid and 2,3-pentanedione over sodium nitrate-supported mesoporous SBA-15 and fumed silica was studied. The yields of acrylic acid, 2,3-pentanedione, and acetaldehyde are 44.8%, 25.1%, and 13.3%, respectively, over the 23%NaNO3/SBA-15 catalyst. The performance of the catalysts is strongly affected by NaNO3 loading, catalyst texture and porosity, and product diffusion efficiency. A proper control of NaNO3 loading can result in modification catalyst structure for improvement of 2,3-pentanedione selectivity. Under certain reaction conditions, the surface NaNO3 species can readily transform to sodium lactate that functions as active component to catalyze the target reactions.

Original languageEnglish
Pages (from-to)1353-1358
Number of pages6
JournalJournal of Industrial and Engineering Chemistry
Volume20
Issue number4
DOIs
Publication statusPublished - 25 Jul 2014

Scopus Subject Areas

  • Chemical Engineering(all)

User-Defined Keywords

  • 2,3-Pentanedione
  • Acrylic acid
  • Lactic acid
  • SBA-15
  • Sodium nitrate

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