The improved synthesis of carbonated soybean oil using supercritical carbon dioxide at a reduced reaction time

Cyclic Carbonates Based on Vegetable Oils

“…He assumed the behavior of TBAB decomposition reaction at 140 °C. However, later Doll instrumentally proved that this process is observed only at temperatures over 150 °C [11].…”

“…In the field of CCVO synthesis the carrying out of the reaction in ScCD environment has found its reflection only in two works [11,12], differing mostly by the use of various substrata (ESBO and vernonia oil). At the transition from carbonation process at the atmospheric pressure to the process in ScCD environment, the considerable reduction of time for the obtaining of equal EG conversion is observed.…”

“…Besides individual TBAB, two-component systems with its application are also described: {ТTBAB + SnCl 4 } [10] and {TBAB + H 2 O} [9]. At the same time such catalytic systems as: sodium iodide, lithium bromide and potassium, benzyltrimethylammonium bromide, ion exchange resins Amberlite IRA-400 (Cl) are [6] of little effect [11], due to their low or full insolubility in the substratum.…”

“…Despite the wide range of catalysts, applied to obtain CC [1,2,4], catalytic systems on the basis of tetrabutylammonium bromide (TBAB) have become widely applied for CCVO synthesis [5][6][7][9][10][11][12][13]15], they are a large-capacity industrial product. The optimum of TBAB dosage is 2÷7 mol %, as relating to epoxy groups of a substrate.…”

“…The main part of researches is devoted to epoxidized soybean oil (ESBO) carbonation [6][7][8][9][10][11][12], in some works the epoxidized linseed oil (ELSO) [5,13] is used. Such choice is defined by the availability of these oils which are large-capacity products [14], they are widely applied at halogenated polymers processing (for example, polyvinylchloride).…”