Diffusion dialysis of hydrochloride acid at different temperatures using PPO–SiO2 hybrid anion exchange membranes

2010 ◽  
Vol 347 (1-2) ◽  
pp. 240-249 ◽  
Author(s):  
Jingyi Luo ◽  
Cuiming Wu ◽  
Yonghui Wu ◽  
Tongwen Xu
Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 311
Author(s):  
Muhammad Imran Khan ◽  
Majeda Khraisheh ◽  
Fares AlMomani

Recycling of acid from aqueous waste streams is crucial not only from the environmental point of view but also for maturing the feasible method (diffusion dialysis). Anion exchange membrane (AEM)–based diffusion dialysis process is one of the beneficial ways to recover acid from aqueous waste streams. In this article, the synthesis of a series of brominated poly (2, 6–dimethyl-1, 4–phenylene oxide) (BPPO)-based anion exchange membranes (AEMs) through quaternization with triphenylphosphine (TPP) were reported for acid recovery via diffusion dialysis process. The successful synthesis of the prepared membranes was confirmed by Fourier transform infrared (FTIR) spectroscopy. The as-synthesized anion exchange membranes represented water uptake (WR) of 44 to 66%, ion exchange capacity of (IEC) of 1.22 to 1.86 mmol/g, and linear swelling ratio (LSR) of 8 to 20%. They exhibited excellent thermal, mechanical, and acid stability. They showed homogeneous morphology. The acid recovery performance of the synthesized AEMs was investigated in a two compartment stack using simulated mixture of HCl and FeCl2 as feed solution at room temperature. For the synthesized anion exchange membranes TPP–43 to TPP–100, the diffusion dialysis coefficient of acid (UH+) was in the range of 6.7 to 26.3 (10−3 m/h) whereas separation factor (S) was in the range of 27 to 49 at 25 °C. Obtained results revealed that diffusion dialysis performance of the synthesized AEMs was higher than the commercial membrane DF–120B (UH+ = 0.004 m/h, S = 24.3) at room temperature. It showed that the prepared AEMs here could be excellent candidates for the diffusion dialysis process.


2021 ◽  
Vol 624 ◽  
pp. 119116
Author(s):  
Jiuyang Lin ◽  
Junming Huang ◽  
Jing Wang ◽  
Junwei Yu ◽  
Xinqiang You ◽  
...  

2021 ◽  
Vol 221 ◽  
pp. 281-290
Author(s):  
Muhammad Imran Khan ◽  
Jinzhan Su ◽  
Liejin Guo

2015 ◽  
Vol 3 (47) ◽  
pp. 24000-24007 ◽  
Author(s):  
Xiaocheng Lin ◽  
Ezzatollah Shamsaei ◽  
Biao Kong ◽  
Jefferson Zhe Liu ◽  
Tongwen Xu ◽  
...  

Anion exchange membranes with fast acid permeation and high retention of salts have been fabricated to increase the process efficiency of acid recovery from various industrial processes via diffusion dialysis, thereby greatly reducing their energy consumption and environmental impact.


2020 ◽  
Vol 175 ◽  
pp. 49-59
Author(s):  
Wenya Liu ◽  
Meng Li ◽  
Mengjie Sun ◽  
Xu Zhang ◽  
Cuiming Wu ◽  
...  

Membranes ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 95
Author(s):  
Muhammad Imran Khan ◽  
Abdallah Shanableh ◽  
Majeda Khraisheh ◽  
Fares AlMomani

Diffusion dialysis (DD) is an anion exchange membrane-based functional separation process used for acid recovery. TMA (trimethylamine) and BPPO (brominated poly (2,6-dimethyl-1,4-phenylene oxide) were utilized in this manuscript to formulate AEMs (anion exchange membranes) for DD (diffusion dialysis) using the phase-inversion technique. FTIR (Fourier transfer infrared) analysis, proton NMR spectroscopy, morphology, IEC (ion exchange capacity), LER (linear expansion ratio), CR (fixed group concentration), WR (water uptake/adsorption), water contact angle, chemical, and thermal stability, were all used to evaluate the prepared membranes. The effect of TMA content within the membrane matrix on acid recovery was also briefly discussed. It was reported that porous AEMs have a WR of 149.6% to 233.8%, IEC (ion exchange capacity) of 0.71 to 1.43 mmol/g, CR (fixed group concentration) that ranged from 0.0046 mol/L to 0.0056 mol/L, LER of 3.88% to 9.23%, and a water contact angle of 33.10° to 78.58°. The UH (acid dialysis coefficients) for designed porous membranes were found to be 0.0043 to 0.012 m/h, with separation factors (S) ranging from 13.14 to 32.87 at the temperature of 25 °C. These observations are comparable to those found in the DF-120B commercial membrane with UH of 0.004 m/h and S of 24.3 m/h at the same temperature (25 °C). This porous membranes proposed in this paper are excellent choices for acid recovery through the diffusion dialysis process.


Materials ◽  
2017 ◽  
Vol 10 (3) ◽  
pp. 266 ◽  
Author(s):  
Muhammad Khan ◽  
Rafael Luque ◽  
Pepijn Prinsen ◽  
Aziz Ur Rehman ◽  
Saima Anjum ◽  
...  

Polymer ◽  
2019 ◽  
Vol 170 ◽  
pp. 168-178 ◽  
Author(s):  
Pradeep K. Prajapati ◽  
Raghavendra Nimiwal ◽  
Puyam S. Singh ◽  
Rajaram K. Nagarale

Sign in / Sign up

Export Citation Format

Share Document