TY - JOUR

T1 - Calcium waste as a catalyst in the transesterification for demanding esters: scalability perspective

AU - Потороченко, Антон Николаевич

AU - Родыгин, Константин Сергеевич

PY - 2025/7/28

Y1 - 2025/7/28

N2 - Esters are valuable compounds in fine organic synthesis and industry. The significant growth in the demand for esters requires the development of scalable production methods. Heterogeneous CaO-based catalysts for the production of esters by transesterification are promising catalytic systems for the production of these desired compounds. In this work, the application of calcium carbide slag, a byproduct of acetylene production, was investigated. The catalyst was obtained by calcination of calcium carbide slag at 600 °C (CS 600) and characterized by XRD and FTIR analysis. The transesterification reactions were carried out with primary alcohols, producing fatty acid alkyl esters in 51-99% yields, depending on the alcohols' nature and catalyst amount (1-10 wt %). The CS 600 catalyst demonstrated efficiency in the transesterification of low-molecular-weight esters, medium-chain triglycerides (C 9-C 12), and lactones, resulting in the corresponding methyl esters in 66-99% yields in the presence of low catalyst amounts of 1-5 wt %.

AB - Esters are valuable compounds in fine organic synthesis and industry. The significant growth in the demand for esters requires the development of scalable production methods. Heterogeneous CaO-based catalysts for the production of esters by transesterification are promising catalytic systems for the production of these desired compounds. In this work, the application of calcium carbide slag, a byproduct of acetylene production, was investigated. The catalyst was obtained by calcination of calcium carbide slag at 600 °C (CS 600) and characterized by XRD and FTIR analysis. The transesterification reactions were carried out with primary alcohols, producing fatty acid alkyl esters in 51-99% yields, depending on the alcohols' nature and catalyst amount (1-10 wt %). The CS 600 catalyst demonstrated efficiency in the transesterification of low-molecular-weight esters, medium-chain triglycerides (C 9-C 12), and lactones, resulting in the corresponding methyl esters in 66-99% yields in the presence of low catalyst amounts of 1-5 wt %.

KW - biodiesel

KW - calcium oxide

KW - carbide slag

KW - ester

KW - transesterification

UR - https://www.mendeley.com/catalogue/3dfb0904-5464-3dc7-9e67-f13a6280bef1/

U2 - 10.3762/bjoc.21.114

DO - 10.3762/bjoc.21.114

M3 - Article

C2 - 40761764

VL - 21

SP - 1520

EP - 1527

JO - Beilstein Journal of Organic Chemistry

JF - Beilstein Journal of Organic Chemistry

SN - 2195-951X

ER -