Optimization of technological parameters of the process for obtaining bisphenols on cation-exchange catalyst in the presence of hydrogen sulfide

Bal’tser, A. E.; Zaitsev, Dmitry A.; Zubritskaya, N. G.; Ivanova, T. V.; Babenko, T. G.; Barskova, E. N.

doi:10.1134/s1070427216090068

Cited by 2 publications

(1 citation statement)

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“…10 The synthesis of BHPF by 9-fluorenone and phenol requires an acid catalyst to provide proton and sulfhydryl compounds as co-catalysts to activate fluorenone carbonyl. 11 In industry, this condensation process often uses a mineral acid, namely hydrochloric, sulfuric or perchloric acid, as the main catalyst. However, traditional acid catalysts will seriously corrode the equipment, easily cause side reactions and produce a great quantity of waste acid to pollute the environment.…”

Section: Introductionmentioning

confidence: 99%

Polystyrene-supported imidazolium acidic ionic liquids: highly efficient catalysts for the synthesis of bisphenols

Fei

Wang

et al. 2023

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

Polystyrene-supported imidazolium acidic ionic liquids: highly efficient catalysts for the synthesis of bisphenols

Fei

Wang

et al. 2023

New J. Chem.

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Exposure to New Emerging Bisphenols Among Young Children in Switzerland

Lucarini

Krasniqi

Rosset³

et al. 2020

IJERPH

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Restrictions on the use of bisphenol A (BPA) in consumer products led to its replacement by various bisphenol (BP) analogues, yet young children’s exposure to these analogues has been poorly characterized so far. This study aimed to characterize infants’ and toddlers’ exposure to BPA and 14 emerging BP analogues (i.e., bisphenol AF, bisphenol AP, bisphenol B, bisphenol BP, bisphenol C (BPC), bisphenol E, bisphenol F (BPF), bisphenol G, bisphenol M (BPM), bisphenol P, bisphenol PH, bisphenol S (BPS), bisphenol TMC, and bisphenol Z). We extracted infants’ and toddlers’ urine from diapers (n = 109) collected in Swiss daycare centers as a practical and noninvasive alternative approach to urinary biomonitoring. Bisphenols were present in 47% of the samples, with BPC and BPM being the most frequently detected (23% and 25% of all samples, respectively). The mean concentrations of urinary BPS and BPF were greater than that of BPA. This contrasts with data reported previously. Furthermore, statistical analysis revealed a significant and negative correlation between urinary BPM concentration and the population’s age. Our results provide a first characterization of infants’ and toddlers’ exposure to bisphenols in Switzerland. This knowledge can be used to support ongoing biomonitoring studies and to prioritize exposure reduction and prevention strategies.

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Optimization of technological parameters of the process for obtaining bisphenols on cation-exchange catalyst in the presence of hydrogen sulfide

Cited by 2 publications

References 4 publications

Polystyrene-supported imidazolium acidic ionic liquids: highly efficient catalysts for the synthesis of bisphenols

Polystyrene-supported imidazolium acidic ionic liquids: highly efficient catalysts for the synthesis of bisphenols

Exposure to New Emerging Bisphenols Among Young Children in Switzerland

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