переестерифікація

Kinetic Aspects of Catalytic Interactions Involving Pentyl Acetate and Ethanolamine

A conversion scheme for pentyl acetate, ethanolamine, and the products resulting from their interaction through aminolysis, transesterification, and O-N-acyl migration reactions catalyzed by homogeneous and heterogeneous Brønsted-Lowry bases and acids is proposed. It has been determined that acid and base catalysts significantly enhance the aminolysis reaction of esters with amino alcohols when compared to the non-catalytic process. The impact of the catalyst on each reaction has been assessed.

Clay Enriched With Ca2+ and Cu2+ As the Catalyst for the Production of Methyl Esters from CPO on a Laboratory Scale

Indarung clay (Indarung region, Indonesia) has been successfully enriched with Ca2+ and Cu2+ ions. XRF, XRD, FTIR, and SAA analyses confirmed that calcination process had no significant effect on improving its performance so that the clay was simply heated at 383 K before use. Measurements using AAS showed that the clay is enriched with Cu2+ ions more easily than Ca2+ ions.

Development of Heterogeneous Alkali Methoxide Catalyst from Fly Ash and Limestone

This study is aimed to use fly ash and limestone as raw materials for preparing alkali methoxide heterogeneous catalysts for transesterification of palm oil into biodiesel. The heterogeneous catalyst was synthesized from fly ash and limestone through wet and dry methods and calcined within 1073–1273 K. X-ray diffraction and scanning electron microscopy analyses indicated the well-dispersed presence of the Ca(OCH3)2 crystal over the fly ash and limestone framework, which was mixed using wet method and calcined at 1073 K (W-800).