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Depolymerization of polycarbonate with catalyst in hot compressed water in fused silica capillary and autoclave reactors
Pan, Zhiyan1; Hu, Zhichao1; Shi, Yinghai1; Shen, Yuan1; Wang, Junliang1; Chou, I-Ming2
2014
Source PublicationRSC ADVANCES
Volume4Issue:38Pages:19992-19998
AbstractDepolymerization of polycarbonate (PC) with the catalyst manganese acetate (Mn(Ac)(2)) was studied in hot compressed water (HCW) using a stainless steel batch autoclave reactor and a fused silica capillary reactor (FSCR). The phase behavior of PC in water with or without Mn(Ac)(2) during the heating, reaction and cooling processes was observed. The phase behavior indicated that the dissolution time of PC in HCW to form a homogeneous liquid solution was effectively reduced by adding Mn(Ac)(2) as a catalyst. For the reaction in the autoclave reactor, the main liquid products were bisphenol A (BPA) and phenol. The effects of operating parameters such as catalyst concentration (ratio of Mn(Ac)(2) to PC) (0-2.5%), temperature (250-280 degrees C) and reaction time (5-60 min) on depolymerization of PC were investigated in the autoclave reactor. The optimal experimental conditions were found to be a temperature of 280 degrees C, reaction time of 20 min with the ratio of Mn(Ac)(2)/PC of 2.0%, giving yields of BPA and phenol of 55.25% and 18.63%, respectively. The main gaseous product CO2 in the FSCR was qualitatively and quantitatively analyzed by Raman spectroscopy. A reaction pathway for catalytic depolymerization of PC in HCW was proposed based on the experimental results.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c4ra00680a
Indexed BySCI
Language英语
WOS KeywordRAMAN-SPECTROSCOPIC CHARACTERIZATION ; SUPERCRITICAL WATER ; POLYETHYLENE TEREPHTHALATE ; KINETICS ; DECOMPOSITION ; GLYCOLYSIS ; METHANOL ; ETHANOL ; FLUIDS ; ACID
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000335922900060
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.idsse.ac.cn/handle/183446/765
Collection深海科学研究部_深海极端环境模拟研究实验室
Affiliation1.Zhejiang Univ Technol, Dept Environm Engn, Hangzhou 310032, Zhejiang, Peoples R China
2.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Peoples R China
Recommended Citation
GB/T 7714
Pan, Zhiyan,Hu, Zhichao,Shi, Yinghai,et al. Depolymerization of polycarbonate with catalyst in hot compressed water in fused silica capillary and autoclave reactors[J]. RSC ADVANCES,2014,4(38):19992-19998.
APA Pan, Zhiyan,Hu, Zhichao,Shi, Yinghai,Shen, Yuan,Wang, Junliang,&Chou, I-Ming.(2014).Depolymerization of polycarbonate with catalyst in hot compressed water in fused silica capillary and autoclave reactors.RSC ADVANCES,4(38),19992-19998.
MLA Pan, Zhiyan,et al."Depolymerization of polycarbonate with catalyst in hot compressed water in fused silica capillary and autoclave reactors".RSC ADVANCES 4.38(2014):19992-19998.
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