Synthesis of tributyl citrate using acid ionic liquid as catalyst
Synthesis of tributyl citrate (TBC) has been studied by using acid functionalized ionic liquid as catalyst. The results indicated that acidic ionic liquids show good catalytic and reusable performance. Under the optimum conditions, using 1-methyl-3- (3-sulfopropyl)-imidazolium hydrogen sulfate as catalyst, the conversion of citric acid was 97%.
Synthesis and kinetics of tributyl citrate using aluminum dihydrogen
The control step of total reaction was the reaction between dibutyl citrate and n-butanol to produce tributyl citrate. KEYWORDS: aluminum dihydrogen tripolyphosphate, modied activated carbon, tributyl citrate, kinetics, catalyze INTRODUCTION As a kind of both environmentally-friendly and non-toxic plasticizer, tributyl citrate (TBC) has been
Synthesis of tributyl citrate using acid ionic liquid as catalyst
Synthesis of tributyl citrate (TBC) has been studied by using acid functionalized ionic liquid as catalyst. The results indicated that acidic ionic liquids show good catalytic and reusable performance. Under the optimum conditions, using 1-methyl-3- (3-sulfopropyl)-imidazolium hydrogen sulfate as catalyst, the conversion of citric acid was 97%.
Synthesis of novel plasticizer ester end-capped oligomeric lactic acid
In this work, a novel high efficiency plasticizer, an ester-capped oligomeric lactic acid mixture (EOL), was successfully synthesized by a two-step esterification reaction, with L -lactic acid as the main raw material. The structure of EOL was characterized by using FT-IR, 1 H NMR and time of flight mass spectrometry (TOF-MS).
Plasticizing effects of citrate esters on properties of poly
The treated and plasticized PLA at various concentrations were analyzed by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), X-ray diffraction (XRD), Fourier transform...
- Is catalytic synthesis of non-toxic/eco-friendly tributyl citrate (TBC) plasticizer?
- The catalytic synthesis of non-toxic/eco-friendly tributyl citrate (TBC) plasticizer by esterification of renewable citric acid (CA) with butanol would be completely sustainable route. In this context, catalytic performance of parent ultra stable Y (USY) and phosphonated USY catalysts were investigated for TBC synthesis.
- Which catalyst is used to synthesis tributyl citrate (TBC) plasticizer?
- Esterification of citric acid (CA) to tributyl citrate (TBC) plasticizer was performed. USY and phosphonated USY catalysts were used for TBC synthesis. Phosphonated USY showed higher catalytic activity than parent USY. 2% (w/w) P/USY catalyst exhibited 100% CA conversion and 93% TBC yield.
- Is tributyl citrate a renewable plasticizer?
- 4. Conclusions Tributyl citrate (TBC), a renewable plasticizer was synthesized by esterification of renewable citric acid (CA) and n -butanol over various zeolites. Amongst studied, 2% (w/w) P/USY zeolite was observed to be most active with 100% CA conversion and 93% TBC yield.
- Can 2% p/USY catalyst be used for synthesis of non-toxic TBC plasticizer?
- Hence, the use of 2% (w/w) P/USY catalyst for synthesises of non-toxic TBC plasticizer by esterification fermentation derived CA and butanol would be sustainable and environmentally benign catalytic process, in the context of complete CA conversion (100%) and high TBC yield (93%), long term stability and reusability of catalyst (5 reaction cycles).
- What is the catalytic performance of Zirconium sulfate?
- Very recently, Yang et al. (2014) investigated catalytic performance of zirconium sulfate supported on molecular sieves for TBC synthesis. They reported, 40 wt.% ZS/HMS as optimum catalyst with 93% CA conversion and 92% TBC yield.
- Can 2% (W/W) P/USY catalyst be used for synthesis of TBC?
- The present method of using 2% (w/w) P/USY catalyst for the synthesis of TBC would be environmentally benign in the context of bio-renewable synthetic route, high catalytic activity, non-toxic product, long term stability and reusability of catalyst (five catalytic cycles).
