نتایج جستجو برای: sulfonation

تعداد نتایج: 537  

Journal: :Colloid and Polymer Science 2021

Abstract Six different sodium lignosulfonates with varying degrees of sulfonation (0.14–1.29 sulfonate groups per phenylpropane unit) and molecular weights ( M w = 6000–330,000 g/mol) were evaluated for their ability to disperse carbon black in aqueous media. Rheological particle size measurements dispersions indicated that low degree function as good dispersants. The dispersion efficiency did ...

Journal: :Journal of Animal Science 2022

Abstract Deoxynivalenol (DON) is a primary mycotoxin in cereal feed ingredients that negatively affects intake and immune function of pigs. Formation DON sulfonate (DONS) with sulfites has become an effective approach to mitigate the toxicities practice, but metabolic fate under sulfonation-based decontamination was not well defined. In this study, 48 nursery pigs (35 d age, 10.8 ± 1.3 kg) were...

2012
Lingxi Bu Yang Xing Hailong Yu Yuxia Gao Jianxin Jiang

UNLABELLED BACKGROUND Corn cob residue (CCR) is a kind of waste lignocellulosic material with enormous potential for bioethanol production. The moderated sulphite processes were used to enhance the hydrophily of the material by sulfonation and hydrolysis. The composition, FT-IR spectra, and conductometric titrations of the pretreated materials were measured to characterize variations of the ...

Journal: :Biochar 2023

Abstract Carbon-based solid acids have been successfully employed as acidic catalysts for pollutant mitigation in wastewater. To fully tap the potentials of commercially viable carbons preparation and enhance their catalytic performances is a challenging problem. In this work, three commercialized including biochar, activated carbon graphite were preprocessed (ball-milling, Hummer exfoliation, ...

Journal: :The Journal of pharmacology and experimental therapeutics 2007
Yuan Ji Irene Moon Jelena Zlatkovic Oreste E Salavaggione Bianca A Thomae Bruce W Eckloff Eric D Wieben Daniel J Schaid Richard M Weinshilboum

The human hydroxysteroid sulfotransferase (SULT) 2B1 gene is a member of the cytosolic SULT gene superfamily. The two SULT2B1 isoforms, SULT2B1a and SULT2B1b, are encoded by a single gene as a result of alternative transcription initiation and alternative splicing. SULT2B1b catalyzes the sulfonation of 3beta-hydroxysteroid hormones and cholesterol, whereas SULT2B1a preferentially catalyzes preg...

Journal: :Angewandte Chemie 2003
Sudip Mukhopadhyay Alexis T Bell

Methane is abundant and relatively inexpensive, making it an attractive feedstock for producing bulk chemicals. However, the low reactivity of methane makes it difficult to develop commercially viable processes for methane conversion. Because of favorable thermodynamics, many authors have investigated the oxidation and oxidative carbonylation of methane. By contrast, the sulfonation of methane ...

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