Synthesis of lactide from L-Lactic acid over iso-reticular zeolites derived from Al-UTL

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F23%3A10470973" target="_blank" >RIV/00216208:11310/23:10470973 - isvavai.cz</a>

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=XXz86wOJem" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=XXz86wOJem</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apcata.2023.119379" target="_blank" >10.1016/j.apcata.2023.119379</a>

Result language

angličtina

Original language name

Synthesis of lactide from L-Lactic acid over iso-reticular zeolites derived from Al-UTL

Original language description

Controlling the reaction selectivity by use of rationally designed catalysts provides high yields of desired products rendering the process more efficient and sustainable. In this study, we investigated a series of isoreticular zeolites (Al-IPC-n, n 1/4 2, 4, 6, and 7), in the synthesis of lactide from L-Lactic acid as an intermediate for the polylactic acid production. Catalytic tests allowed a thorough understanding of the structure-acidity activity relationship and the control of the shape selectivity. The lactide and the dimers of the lactic acid were obtained in one step with a high selectivity (&gt;55% for lactide and &gt;70% for the dimer of the lactic). The selectivity to L,L-lactide was comparable with that on more acidic commercial BEA. A balance between the acidity and the pore size afforded high yields of the dimer, avoiding the poisoning of the catalyst and the production of the larger oligomers.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

Project

<a href="/en/project/GX19-27551X" target="_blank" >GX19-27551X: ADORable catalysts</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Catalysis A: General

ISSN

0926-860X

e-ISSN

1873-3875

Volume of the periodical

665

Issue of the periodical within the volume

September

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

10

Pages from-to

119379

UT code for WoS article

001069386300001

EID of the result in the Scopus database

2-s2.0-85168501421