scholarly journals Ultrastable Imine-Based Covalent Organic Frameworks for Sulfuric Acid Recovery: An Effect of Interlayer Hydrogen Bonding

2018 ◽  
Vol 57 (20) ◽  
pp. 5797-5802 ◽  
Author(s):  
Arjun Halder ◽  
Suvendu Karak ◽  
Matthew Addicoat ◽  
Saibal Bera ◽  
Amit Chakraborty ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Sulfuric Acid ◽  
Covalent Organic Frameworks ◽  
Acid Recovery

scholarly journals Ultrastable Imine-Based Covalent Organic Frameworks for Sulfuric Acid Recovery: An Effect of Interlayer Hydrogen Bonding

2018 ◽  
Vol 130 (20) ◽  
pp. 5899-5904 ◽  
Author(s):  
Arjun Halder ◽  
Suvendu Karak ◽  
Matthew Addicoat ◽  
Saibal Bera ◽  
Amit Chakraborty ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Sulfuric Acid ◽  
Covalent Organic Frameworks ◽  
Acid Recovery

Fabrication of high-performance pervaporation membrane for sulfuric acid recovery via interfacial polymerization

2021 ◽  
Vol 624 ◽  
pp. 119108
Author(s):  
Huaqing Liu ◽  
Jianzhong Xia ◽  
Kangjie Cui ◽  
Junquan Meng ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
High Performance ◽  
Interfacial Polymerization ◽  
Pervaporation Membrane ◽  
Acid Recovery

The Interplay Between Hydrogen Bonding and Coulombic Forces in Determining the Structure of Sulfuric Acid-Amine Clusters

2018 ◽  
Vol 9 (6) ◽  
pp. 1216-1222 ◽  
Author(s):  
Sarah E. Waller ◽  
Yi Yang ◽  
Eleanor Castracane ◽  
Emily E. Racow ◽  
John J. Kreinbihl ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Sulfuric Acid

scholarly journals Intra-molecular Interactions in Porous Covalent Organic Frameworks

2014 ◽  
Vol 70 (a1) ◽  
pp. C530-C530
Author(s):  
Rahul Banerjee
Keyword(s):  
Hydrogen Bonding ◽  
Schiff Base ◽  
Molecular Interactions ◽  
Chemical Stability ◽  
Intramolecular Hydrogen Bonding ◽  
Covalent Organic Frameworks ◽  
Covalent Organic Framework ◽  
New Strategy ◽  
The Stability ◽  
Intramolecular Hydrogen

A new strategy of intramolecular hydrogen bonding in 2D covalent organic framework as an extra stabilizing factor has been introduced, which helps to improve the crystallinity, porosity and chemical stability of the COF. Using this concept, highly stable porphyrin containing covalent organic frameworks have been synthesized using the Schiff base reaction. The stability of the COFs mainly arises due to the strong intramolecular O-H...N=C hydrogen bonding. Validation of this postulate was cross-checked by synthesizing methoxy (OCH3) substituted COF in which no hyrogen bonding exists. It was found that methoxy substituted COF have a low crystallinity, porosity and chemical stability as compared to hydrogen bonded COF.

Hydrogen bonding in cyclic complexes of carboxylic acid–sulfuric acid and their atmospheric implications

RSC Advances ◽  
2016 ◽  
Vol 6 (75) ◽  
pp. 71733-71743 ◽  
Author(s):  
Hailiang Zhao ◽  
Qun Zhang ◽  
Lin Du
Keyword(s):  
Hydrogen Bonding ◽  
Sulfuric Acid ◽  
Carboxylic Acid ◽  
Carboxylic Acids ◽  
Particle Formation ◽  
New Particle Formation ◽  
Ring Structures ◽  
Cyclic Complexes

Carboxylic acids form cyclic ring structures with sulfuric acid and they could potentially be important in new particle formation.

scholarly journals Prospective Evaluation of Spent Sulfuric Acid Recovery by Process Simulation

2020 ◽  
Author(s):  
Krisztina Várnai ◽  
László Petri ◽  
Lajos Nagy
Keyword(s):  
Sulfuric Acid ◽  
Energy Consumption ◽  
Process Simulation ◽  
Azeotropic Distillation ◽  
Current Mode ◽  
Prospective Evaluation ◽  
Simulation And Optimization ◽  
Acid Recovery ◽  
Steady State Simulation ◽  
Counter Current

This study presents the steady-state simulation and optimization with regard to the recovery of spent sulfuric acid. Our purpose was to prove the utility of process simulation in terms of designing with special materials using energy-efficient methods. Process simulation is used in order to compare technological variants, analyze technological problems that occur as well as optimize the process. In this investigation three concentration processes are compared: azeotropic distillation and multiple-effect evaporation both in co-current and counter-current modes. The main aspects of the comparison are energy consumption and heat efficiency. Process simulation is an adequate tool for analyzing the thermal decomposition of sulfuric acid, the presence of sulfuric acid in the vapor fraction, and the costs of applying a third agent. Here, three models and a simulation-based prospective evaluation of energy consumption and the economy are presented. It is shown that the process of azeotropic distillation consumes an extremely large amount of thermal energy which seems to be more than that consumed by single-effect evaporation, while triple-effect evaporation in the counter-current mode was found to be the most thermally efficacious.

Acid recovery from waste sulfuric acid by diffusion dialysis

1999 ◽  
Vol 6 (2) ◽  
pp. 103-106 ◽  
Author(s):  
Guiqing Zhang ◽  
Qixiu Zhang ◽  
Kanggen Zhou
Keyword(s):  
Sulfuric Acid ◽  
Acid Recovery ◽  
Diffusion Dialysis
Sign in / Sign up

Export Citation Format

Share Document