Process and Kinetics Study on the Acrylic Acid from Industrial Spent Acid by Complexometric Extractant

2013 ◽  
Vol 448-453 ◽  
pp. 775-779
Author(s):  
Hui Shuan Dong ◽  
Qi Feng Wei ◽  
Xiu Lian Ren ◽  
Hui Ju
Keyword(s):  
Acrylic Acid ◽  
Industrial Waste ◽  
Extraction Method ◽  
Process Conditions ◽  
Kinetics Study ◽  
Optimal Process ◽  
Lewis Cell ◽  
Solvent Extraction Method ◽  
Series Of Experiments ◽  
Kinetics Of

A new solvent extraction method recycling the acrylic acid (AA) from industrial waste fluid for producing acrylic acid was studied. The influencing factors of the species of diluents, concentration of extractant and temperature were investigated. The optimal process conditions were chosen that the 1-octanol as diluents, the concentration of tri-n-octylamine (TOA) 0.87mol/L, reaction temperature 298K after a series of experiments and analysis. The kinetics of extraction was studied by Lewis cell, the rate equation of extraction could be expressed as: RA=8.8×10-2[AA]1.5[TOA]2.1.

scholarly journals Kinetics study and simulation of CO2 absorption into mixed aqueous solutions of methyldiethanolamine and hexylamine

2018 ◽  
Vol 73 ◽  
pp. 19
Author(s):  
Ammar Mehassouel ◽  
Ratiba Derriche ◽  
Chakib Bouallou
Keyword(s):  
Combustion Process ◽  
Co2 Absorption ◽  
Kinetics Study ◽  
Regeneration System ◽  
First Order ◽  
Gas Streams ◽  
Lewis Cell ◽  
Cell Reactor ◽  
Pseudo First Order ◽  
Kinetics Of

This study investigated kinetics of CO2 absorption into mixed methyldiethanolamine (MDEA) and hexylamine (HA) solutions in a Lewis cell reactor. The experiments were conducted in the temperatures 298, 313 and 333 K with mass concentrations MDEA 37 wt.% + HA 3 wt.%, MDEA 35 wt.% + HA 5 wt.% and MDEA 33 wt.% + HA 7 wt.%. Our results showed that adding a small amount of hexylamine enhances the kinetics of CO2 absorption and that the kinetics of CO2 absorption with aqueous MDEA 37 wt.% + HA 3 wt.% is pseudo first order regime with reduced activation energy compared to that of MDEA 40 wt.%. The absorption/regeneration system was simulated using Aspen plus™ software for the treatment of gas streams from cement plant in a post-combustion process. The analysis of our results established that blended solvent MDEA 37 wt.% + HA 3 wt.% gives lower energy consumption than that of MDEA 40 wt.%.

Manufacturing of Zinc Powder with Dendritic Microstructure for Zinc-Air Battery by Electrodeposition

2012 ◽  
Vol 460 ◽  
pp. 300-303 ◽  
Author(s):  
Qing Hua Tian ◽  
Li Zhen Cheng ◽  
Jing Xin Liu ◽  
Xue Yi Guo
Keyword(s):  
Current Density ◽  
Zinc Powder ◽  
Process Conditions ◽  
Test Results ◽  
Optimal Process ◽  
Solution System ◽  
Dendritic Microstructure ◽  
Factors Affecting ◽  
Series Of Experiments ◽  
Air Battery

Fine zinc powder with dendritic microstructure is applied in preparation of cathode of zinc-air battery. Based on a series of experiments, the electrodeposition was determined for the preparation of zinc powder with dendritic microstructure in the solution system of Zn2+-NH4+-SO42--H2O. The main factors affecting the process such as current density、temperature、concentration of reactants and schedule of brushing powder were investigated comprehensively. The optimal process conditions are15g/L Zn2+, 30～40g/L(NH4)2SO4, 800 Am-2current density at 30°C,with the schedule of brushing powder is 2 minutes. Based on the test results the optimal conditions, fine zinc powder with dendritic microstructure can be fabricated by electrodeposition.

scholarly journals Gas Chromatography of Urinary Anthranilic Acid and 3-Hydroxyanthranilic Acid by Solvent Extraction Method

1972 ◽  
Vol 20 (7) ◽  
pp. 1412-1416 ◽  
Author(s):  
KAZUYUKI HIRANO ◽  
KAZUMI MORI ◽  
NOBUKO TSUBOI ◽  
SATOSHI KAWAI ◽  
TAKEO OHNO
Keyword(s):  
Gas Chromatography ◽  
Solvent Extraction ◽  
Anthranilic Acid ◽  
Extraction Method ◽  
Solvent Extraction Method ◽  
Hydroxyanthranilic Acid

Study on Extracting Potassium from Potassium Feldspar with Molten Salt Leaching Method

2012 ◽  
Vol 524-527 ◽  
pp. 1078-1081
Author(s):  
Jian Guo Song ◽  
Xin Zhi Wang ◽  
Shao Dan Xiao ◽  
Wei Liu
Keyword(s):  
Reaction Time ◽  
Molten Salt ◽  
Potassium Feldspar ◽  
Process Conditions ◽  
Temperature Reaction ◽  
Optimal Process ◽  
Potash Feldspar ◽  
Salt Leaching ◽  
Effects Of Temperature

This article aims to study the technology of extracting potassium from potassium feldspar with molten salt leaching method and to analyze the effects of temperature, reaction time and other factors on extracting potassium, concluding the optimal process conditions of extracting potassium with molten leaching method from potash feldspar.

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