Some Equilibrium Relations in the System Magnesium Oxide—Sulfur Dioxide—Water (Acid Region) at Pressures below Atmospheric1

1948 ◽  
Vol 70 (6) ◽  
pp. 2179-2182 ◽  
Author(s):  
Frank H. Conrad ◽  
Donat B. Brice
Keyword(s):  
Sulfur Dioxide ◽  
Magnesium Oxide ◽  
Acid Region

Heterogeneous Uptake of Sulfur Dioxide On Aluminum and Magnesium Oxide Particles

2001 ◽  
Vol 105 (25) ◽  
pp. 6109-6120 ◽  
Author(s):  
A. L. Goodman ◽  
P. Li ◽  
C. R. Usher ◽  
V. H. Grassian
Keyword(s):  
Sulfur Dioxide ◽  
Magnesium Oxide ◽  
Oxide Particles

scholarly journals Synthesis of Magnesium Oxide Nanoplates and Their Application in Nitrogen Dioxide and Sulfur Dioxide Adsorption

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Thi Hai Yen Duong ◽  
Thanh Nhan Nguyen ◽  
Ho Thi Oanh ◽  
Tuyet Anh Dang Thi ◽  
Le Nhat Thuy Giang ◽  
...  
Keyword(s):  
Sulfur Dioxide ◽  
Nitrogen Dioxide ◽  
Specific Surface ◽  
Surface Area ◽  
Magnesium Oxide ◽  
Specific Surface Area ◽  
Sol Gel ◽  
Sodium Dodecyl ◽  
Gas Treatment ◽  
Calcination Method

In this research, nanostructured magnesium oxide was synthesized through the sol-gel calcination or hydrothermal calcination method using various surfactants. The X-ray diffraction pattern of the materials confirmed that all the prepared magnesium oxide samples were single phase without any impurity. The scanning electron microscopy images and specific surface area values showed that sodium dodecyl sulfate was the most suitable surfactant for the synthesis of magnesium oxide nanoplates with the diameter of 40–60 nm, the average thickness of 5 nm, and a specific surface area of 126 m2/g. This material was utilized for nitrogen dioxide and sulfur dioxide adsorption under ambient condition. The saturated adsorption capacities of magnesium oxide were 174 mg/g for nitrogen dioxide and 160 mg/g for sulfur dioxide, making the magnesium oxide nanoplates a promising candidate for toxic gas treatment.

scholarly journals Sulfur Fixation by Chemically Modified Red Mud Samples Containing Inorganic Additives: A Parametric Study

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Yang Liu ◽  
Yang Li ◽  
Feng-shan Zhou ◽  
Ying-mo Hu ◽  
Yi-he Zhang
Keyword(s):  
Sulfur Dioxide ◽  
Magnesium Oxide ◽  
Red Mud ◽  
Mother Liquor ◽  
Mass Ratio ◽  
Fixation Rate ◽  
Natural Mineral ◽  
Chemically Modified ◽  
Bayer Red Mud ◽  
Sulfur Fixation

Sulfur retention ability of Bayer red mud from alumina plant was investigated. Bayer red mud modified by fusel salt and waste mother liquor of sodium ferrocyanide as the main sulfur fixation agent and the calcium based natural mineral materials as servicing additives; the experimental results showed the following: (1) Through 10 wt% waste mother liquor of sodium ferrocyanide modifying Bayer red mud, sulfur fixation rate can increase by 13 wt%. (2) Magnesium oxide can obviously improve the sulfur fixation performance of Bayer red mud and up to a maximum sulfur fixation rate of 47 wt% at adding 1 wt% magnesium oxide. (3) Dolomite enhanced the sulfur fixation performances with the sulfur fixation rate of 68 wt% in optimized condition. (4) Vermiculite dust reduced sulfur dioxide during the fixed-sulfur process of modified Bayer red mud, and the desulphurization ration could reach up to a maximum 76 wt% at 950°C. (5) An advanced three-component sulfur fixation agent was investigated, in which the optimized mass ratio of modified Bayer red mud, dolomite, and vermiculite dust was 70 : 28 : 2 in order, and its sulfur fixation efficiency has reached to a maximum 87 wt% under its 20 wt% dosage in the coal.

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