ZnCl2-modified ion exchange resin as an efficient catalyst for the bisphenol-A production

Wang, Baohe; Dong, Jinshi; Chen, Shuang; Wang, Lili; Zhu, Junfa

doi:10.1016/j.cclet.2014.06.004

Cited by 16 publications

(11 citation statements)

References 21 publications

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“…Zn2+ coordinated with a sulfonic acid group to form a stable active site, which effectively decreased the deactivation caused by the degradation of sulfonic acid. Thus the prepared catalyst exhibited excellent catalytic activity, selectivity and stability compared to the unmodified counterpart [29].…”

Section: Rajendra Bhaskar Bhandarementioning

confidence: 94%

Ion Exchangers as Catalyst in Esterification Reaction: A Review

Bhandare¹

2018

International Journal of Chemical Engineering Research

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Section: Rajendra Bhaskar Bhandarementioning

confidence: 94%

Ion Exchangers as Catalyst in Esterification Reaction: A Review

Bhandare¹

2018

International Journal of Chemical Engineering Research

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“…BPA must have minimum 95% purity for the epoxy resin production and 99% and upper purity for the polycarbonate synthesis. 1,2 Depending on the reaction conditions and catalyst types, many by-products occurs in the process of BPA production. In the literature there are various studies to increase yield and selectivity.…”

Section: Introductionmentioning

confidence: 99%

DFT and experimental studies on synthesis of bisphenol a: Determination of optimal feed profile in semi-batch reactor

Akman¹,

Aras²,

Kaya³

2021

Preprint

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Bisphenol A (BPA) is theoretically synthesized with 2 moles of phenol and 1 mol of acetone. During the reaction, a stoichiometric ratio or high acetone concentration causes the formation of by-products. This situation has been confirmed by density functional theory (DFT) calculations in addition to the literature information. In these calculations, the B3LYP method and the 6-311++G(d, p) basis set were used. DFT calculations show that by-products can be formed in the synthesis of bisphenol a. The common method used to solve this problem is to work with high molar phenol/acetone ratios. But this brings additional operating and investment costs. In this study, semi-batch reaction experiments were performed which stoichiometric acetone was fed in reactor with various pulsed modes in the presence of homogenous and heterogonous catalysts. As a result, it has been shown that high conversion and selectivity can be achieved by providing energy efficiency

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“…Besides, ionexchange resins extensively are used as catalyst in industry. BPA must have minimum 95% purity for the epoxy resin production and 99% and upper purity for the polycarbonate synthesis (Wang et al,2014;Yadav et al, 1997). Depending on the reaction conditions and catalyst types, many by-products occurs in the process of BPA production.…”

Section: Introductionmentioning

confidence: 99%

Determination of optimal feed profile in semi-batch reactor: DFT and experimental studies on a Case Study of parallel and serial reactions take place

AKMAN¹,

ARAS²,

Kaya³

2021

Preprint

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Semi-batch reactor systems can be used at different areas due to its advantages of the feed manipulation. Common practices are temperature control of the exothermic reactions or selectivity adjustment of the production process include serial and parallel reactions. Bisphenol A (BPA) is theoretically synthesized with 2 moles of phenol and 1 mol of acetone. During the reaction, a stoichiometric ratio or high acetone concentration causes the formation of by-products. This situation has been confirmed by density functional theory (DFT) calculations. In these calcula-tions, the B3LYP method and the 6-311++G(d, p) basis set were used. DFT calculations show that by-products can be formed in the synthesis of bisphenol a. The common method used to solve the by-product problem is to work with high molar phenol/acetone ratios. But this brings additional operating and investment costs. In this study, semi-batch reaction experiments were performed which stoichiometric acetone was fed in reactor with various pulsed modes in the presence of homogenous and heterogonous catalysts. Time versus conversion and selectivity data were collected at various catalyst concentrations. All runs were compared with the results of batch and semi-batch runs performed in over molar ratio of phenol/acetone. As a result, it has been shown that high conversion and selectivity can be achieved by providing energy efficiency with pulsed mode semi batch reactor.

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ZnCl2-modified ion exchange resin as an efficient catalyst for the bisphenol-A production

Cited by 16 publications

References 21 publications

Ion Exchangers as Catalyst in Esterification Reaction: A Review

Ion Exchangers as Catalyst in Esterification Reaction: A Review

DFT and experimental studies on synthesis of bisphenol a: Determination of optimal feed profile in semi-batch reactor

Determination of optimal feed profile in semi-batch reactor: DFT and experimental studies on a Case Study of parallel and serial reactions take place

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