scholarly journals Preparation, Characterization and Catalytic Activity of Alkyl Benzene Sulfonic Acid Carbon-Based Acid Catalyst

2015 ◽  
Vol 05 (02) ◽  
pp. 93-101 ◽  
Author(s):  
Huoxin Luan ◽  
Yunqiang Wu ◽  
Wenxiang Wu ◽  
Quansheng Chen ◽  
Hailing Zhang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Sulfonic Acid ◽  
Acid Catalyst ◽  
Alkyl Benzene ◽  
Benzene Sulfonic Acid ◽  
Carbon Based

Effect of surface acidity on the catalytic activity and deactivation of supported sulfonic acids during dehydration of methanol to DME

2020 ◽  
Vol 44 (39) ◽  
pp. 16810-16820
Author(s):  
Rosanna Viscardi ◽  
Vincenzo Barbarossa ◽  
Daniele Mirabile Gattia ◽  
Raimondo Maggi ◽  
Giovanni Maestri ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Sulfonic Acid ◽  
Water Resistance ◽  
Surface Acidity ◽  
Acid Catalyst ◽  
Acid Sites ◽  
Sulfonic Acids ◽  
Effect Of Surface

Superiorty of the supported sulfonic acid catalyst in terms of the water resistance and efficiency of the acid sites compared to the commercial reference.

Novel Carbon-based Solid Acid from Green Pistachio Peel as an Efficient Catalyst for the Chemoselective Acylation, Acetalization and Thioacetalization of Aldehydes, Synthesis of Biscoumarins and Antimicrobial Evaluation

2019 ◽  
Vol 7 (1) ◽  
pp. 55-80 ◽  
Author(s):  
Fatemeh Ghorbani ◽  
Seied Ali Pourmousavi ◽  
Hamzeh Kiyani
Keyword(s):  
Catalytic Activity ◽  
High Efficiency ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Hydrothermal Carbonization ◽  
Biomass Waste ◽  
Efficient Catalyst ◽  
Solvent Free Conditions ◽  
Carbon Based

Background: Much attention has been focused on heterogeneous catalysts. Reactions with these recoverable and reusable catalysts are clean, selective with high efficiency. Among the heterogeneous solid acid catalyst in organic synthesis, Carbon-Based Solid Acids (CBSAs), which are important solid acid with many practical and research applications have been extensively studied. In this work, green Pistachio peel, a biomass waste, was converted into a novel carbon-based solid acid catalyst (Pis-SO3H). Objective: The aim of this work is to synthesize highly sulfonated carbon as an efficient, recyclable, nontoxic solid acid catalyst by simultaneous sulfonation, dehydration and carbonization of green Pistachio peel as biomass and investigate the catalytic activity of Pis-SO3H in acetalization, thioacetalization, acylation of aldehydes and synthesis of 3,3'-Arylmethylene-bis(4-hydroxycoumarin) derivatives. Method: Pis-SO3H was synthesized by an integrated fast one-step hydrothermal carbonization and sulfonation process in the presence of sulfuric acid. The characterization of the physicochemical properties of Pis-SO3H was achieved by XRD, FT-IR, FE-SEM, and elemental analysis. Results: The result of acid-base titration showed that the total acidity of the catalyst was 7.75 mmol H+g−1. This new heterogeneous catalyst has been efficiently used for the chemoselective thioacetalization, acetalization and acylation of aldehyde and the synthesis of biscoumarins under solvent-free conditions. All the reactions work easily in high yields. The antimicrobial activity of some of the biscoumarins was evaluated in screening by disk diffusion assay for the zone of inhibition. Conclusion: The catalytic activity of the Pis-SO3H was investigated during acetalization, thioacetalization, acylation and synthesis of biscoumarins. The results of protection of carbonyl groups and synthesis of biscoumarins in the present work offer effective alternatives for environmentally friendly utilization of abundant biomass waste.

scholarly journals Sulfonic-acid-functionalized carbon fiber from waste newspaper as a recyclable carbon based solid acid catalyst for the hydrolysis of cellulose

RSC Advances ◽  
2019 ◽  
Vol 9 (50) ◽  
pp. 28902-28907 ◽  
Author(s):  
Runming Gong ◽  
Zihao Ma ◽  
Xing Wang ◽  
Ying Han ◽  
Yanzhu Guo ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
Sulfonic Acid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Cellulosic Materials ◽  
Hydrolysis Of Cellulose ◽  
Hydrolysis Of ◽  
Carbon Based

Waste newspaper is one of the most common cellulosic materials.

ChemInform Abstract: Synthesis of a Novel Carbon Based Acid Catalyst and Its Catalytic Activity for the Acetalization and Ketalization.

ChemInform ◽  
2008 ◽  
Vol 39 (13) ◽  
Author(s):  
Xue-Zheng Liang ◽  
Shan Gao ◽  
Wen-Ping Chen ◽  
Wen-Juan Wang ◽  
Jian-Guo Yang
Keyword(s):  
Catalytic Activity ◽  
Acid Catalyst ◽  
Carbon Based

scholarly journals Synthesis of Sulfonic Acid-Functionalized Zirconium Poly(Styrene-Phenylvinyl-Phosphonate)-Phosphate for Heterogeneous Epoxidation of Soybean Oil

Catalysts ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 710 ◽  
Author(s):  
Xiaochuan Zou ◽  
Xuyuan Nie ◽  
Zhiwen Tan ◽  
Kaiyun Shi ◽  
Cun Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Soybean Oil ◽  
Sulfonic Acid ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Thiol Group ◽  
Catalytic Performance ◽  
X Ray ◽  
Sulfonic Acid Groups

In this paper, a solid acid catalyst (ZPS–PVPA–SO3H) was prepared by anchoring thiol group on zirconium poly(styrene-phenylvinyl-phosphonate)-phosphate (ZPS–PVPA), followed by oxidation of thiol groups to obtain sulfonic acid groups. The solid acid catalyst was characterized by XPS, X-ray, EDS, SEM, and TG-DSC. The successful preparation of sulfonic acid-functionalized ZPS–PVPA was confirmed. Subsequently, the catalytic performance of ZPS–PVPA–SO3H was investigated in the epoxidation of soybean oil. The results demonstrated that ZPS–PVPA–SO3H can effectively catalyze epoxidation of soybean oil with TBHP as an oxidant. Moreover, there was no significant decrease in catalytic activity after 5 repeated uses of the ZPS–PVPA–SO3H. Interestingly, the ZPS–PVPA–SO3H was kept in 2 mol/L of HCl overnight after the end of the seventh reaction, and the catalytic activity was gradually restored during the eighth to tenth cycles.

Synthesis of a Novel Carbon Based Acid Catalyst and Its Catalytic Activity for the Acetalization and Ketalization

2007 ◽  
Vol 25 (12) ◽  
pp. 1795-1797 ◽  
Author(s):  
Xue-Zheng LIANG ◽  
Shan GAO ◽  
Wen-Ping CHEN ◽  
Wen-Juan WANG ◽  
Jian-Guo YANG
Keyword(s):  
Catalytic Activity ◽  
Acid Catalyst ◽  
Carbon Based

ChemInform Abstract: A Magnetic Particle Supported Sulfonic Acid Catalyst: Tuning Catalytic Activity Between Homogeneous and Heterogeneous Catalysis.

ChemInform ◽  
2012 ◽  
Vol 43 (49) ◽  
pp. no-no
Author(s):  
Nadiya Koukabi ◽  
Eskandar Kolvari ◽  
Mohammad Ali Zolfigol ◽  
Ardeshir Khazaei ◽  
Behzad Shirmardi Shaghasemi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalysis ◽  
Sulfonic Acid ◽  
Magnetic Particle ◽  
Acid Catalyst

Some Factors Affecting the Demulsification Efficiency of Modified Alkyl Benzene Sulfonic Acid in Petroleum Industry

2014 ◽  
Vol 58 (1) ◽  
pp. 61-78 ◽  
Author(s):  
A.M. Al-Sabagh ◽  
Ahmed F. El-kafrawy ◽  
M.R. Noor El-Din ◽  
A.M. El-Tabay ◽  
E.M. Fakher
Keyword(s):  
Sulfonic Acid ◽  
Petroleum Industry ◽  
Alkyl Benzene ◽  
Benzene Sulfonic Acid ◽  
Factors Affecting ◽  
Demulsification Efficiency
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