Supercritical CO2 Extraction of Phthalate Plasticizers from PVC
Three common phthalates, namely, dioctyl phthalate, diisodecyl phthalate, and trioctyl trimellitate, were used as plasticizers for poly (vinyl chloride) (PVC) processing, and the...
Supercritical CO2 extraction of phthalate plasticizers from PVC
Three common phthalates, namely, dioctyl phthalate, diisodecyl phthalate, and trioctyl trimellitate, were used as plasticizers for poly (vinyl chloride) (PVC) processing, and the extraction of these plasticizers were investigated using supercritical CO 2 fluids. Factors affecting the extractions of these phthalates were focused.
Supercritical CO2 extraction of phthalate plasticizers from PVC
Supercritical fluid extraction was performed to remove phthalates in spores of G. lucidum, and the effects on acid and peroxide values of spores’ oil were evaluated, suggesting SFE is a potential approach to removephthalate from food related products. 3 PDF View 1 excerpt, cites methods
Supercritical CO2 Extraction and Purification of Compounds
Supercritical fluid extraction (SCFE), based on the utilization of a fluid under supercritical conditions, is a technology suitable for extraction and purification of a variety of compounds, particularly those that have low volatility and/or are susceptible to thermal degradation.
Assessment of Supercritical CO2 Extraction as a Method
Plastics Decontamination Applying Supercritical Extraction The test sample originated from high-density polyethylene (HDPE) containers, which were in contact with hydrocarbon oils and lubricants. The containers—provided by Brockmann Recycling GmbH, Germany—were shredded to flakes in a size range of 2 to 4 cm.
- Which phthalates are used as plasticizers for poly(vinyl chloride) processing?
- Three common phthalates, namely, dioctyl phthalate, diisodecyl phthalate, and trioctyl trimellitate, were used as plasticizers for poly (vinyl chloride) (PVC) processing, and the extraction of these plasticizers were investigated using supercritical CO 2 fluids. Factors affecting the extractions of these phthalates were focused.
- Does continuous supercritical carbon dioxide remove bis (2-ethylhexyl) phthalate (DOP) from PVC?
- The results show that continuous supercritical carbon dioxide efficiently removes bis (2-ethylhexyl) phthalate (DOP) from PVC with extraction efficiencies of more than 98% which resulted in PVC samples with over 99.5% purity. A process model based on the Sovová model accurately describes the extraction process.
- Can supercritical carbon dioxide remove plasticizers from poly (vinyl chloride)?
- This study explores using extraction with supercritical carbon dioxide to remove plasticizers from poly (vinyl chloride) (PVC), with the aim to enhance recycling processes. Experiments were performed at 100 to 500 bar with temperatures varying from 75 to 110 °C.
- Does carbon dioxide remove bis (2-ethylhexyl) phthalate from PVC?
- Experiments were performed at 100 to 500 bar with temperatures varying from 75 to 110 °C. The results show that continuous supercritical carbon dioxide efficiently removes bis (2-ethylhexyl) phthalate (DOP) from PVC with extraction efficiencies of more than 98% which resulted in PVC samples with over 99.5% purity.
- Is scCO2 extraction a green technology for toxic phthalates removal?
- This study utilizes scCO2 extraction as a green technology for toxic phthalates removal from plasticized PVC and analyzes its effect on the PVC properties to enable sustainable recycling of industr...
- Which plasticizers can be extracted from PVC?
- Guerra et al. conducted extraction and analysis of other plasticizers in PVC such as citrate and benzoate. (16,17) Extraction efficiencies higher than 99% were achieved at optimal extraction conditions, which were in the range of 390–460 bar, 95–100 °C, and 20–30 min extraction time.
