Role of Interfacial Water in the Heterogeneous Uptake of Glyoxal by Mixed Glycine and Ammonium Sulfate Aerosols

2012 ◽  
Vol 116 (24) ◽  
pp. 5948-5957 ◽  
Author(s):  
Miri Trainic ◽  
Ali Abo Riziq ◽  
Avi Lavi ◽  
Yinon Rudich
Keyword(s):  
Ammonium Sulfate ◽  
Interfacial Water ◽  
Sulfate Aerosols

Role of sodium citrate in leaching of low-grade and multiphase zinc oxide ore in ammonia–ammonium sulfate solution

2017 ◽  
Vol 169 ◽  
pp. 534-541 ◽  
Author(s):  
Kun Yang ◽  
Libo Zhang ◽  
Chao Lv ◽  
Jinhui Peng ◽  
Shiwei Li ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Ammonium Sulfate ◽  
Sodium Citrate ◽  
Sulfate Solution ◽  
Low Grade ◽  
Ammonium Sulfate Solution

Hygroscopic properties of the oxidation products of monoterpenes when condensing on ammonium sulfate aerosols

1998 ◽  
Vol 29 ◽  
pp. S5-S6 ◽  
Author(s):  
A. Virkkula ◽  
R. van Dingenen ◽  
F. Raes ◽  
J. Hjorth ◽  
N. Jensen ◽  
...  
Keyword(s):  
Ammonium Sulfate ◽  
Oxidation Products ◽  
Sulfate Aerosols ◽  
Hygroscopic Properties

Effects of ammonium sulfate aerosols on vegetation—II. Mode of entry and responses of vegetation

1983 ◽  
Vol 17 (4) ◽  
pp. 715-721 ◽  
Author(s):  
Nicholas F. Gmur ◽  
Lance S. Evans ◽  
Elizabeth A. Cunningham
Keyword(s):  
Ammonium Sulfate ◽  
Sulfate Aerosols ◽  
Mode Of Entry

Sulfidisation Promotion Effect of Ammonium Sulfate on Flotation of Copper Oxide Ore

2012 ◽  
Vol 524-527 ◽  
pp. 1109-1114
Author(s):  
Dian Wen Liu ◽  
Jian Jun Fang ◽  
Xiao Lin Zhang ◽  
Shu Ming Wen ◽  
Zhi Cong Wei ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Ammonium Sulfate ◽  
Sodium Sulfide ◽  
Pure Copper ◽  
Sem Images ◽  
Promotion Effect ◽  
Flotation Recovery ◽  
Oxide Minerals ◽  
Sulfide Ions

This paper presents the sulfidisation promotion effect of ammonium sulfate on the sulfidisation flotation of both malachite and copper oxide ores. Copper oxide ores are commonly difficult-to-float due to its molecular structure, and adding sodium sulfide as activator is necessary; however, its dosage to the flotation pulp must be strictly controlled, as it is also a powerful depressant for copper sulfide minerals, and will, if in excess, depress the activated copper oxide minerals. This depression will be alleviated while ammonium sulfate is added, as it accelerates the speed of sulfidisation, and alleviates excessive sulfide ions on the depression of copper oxide minerals. Ammonium sulfate, therefore, may be a sulfidisation promoter, and plays a role of sulfidisation promotion effect; it makes the coating of sodium sulfide on the ore surface more dense and stable, which is ready for xanthate adsorption on the surface of copper oxide minerals. The results of experiments show that the flotation recovery is increased 12.28% while ammonium sulfate is added in the presence of excessive sodium sulfide in the pulp, and the highest recovery is obtainable when the ammonium sulfate and sodium sulfide are in the same dosages. The sulfidisation promotion effect of ammonium sulfate is confirmed by pure copper oxide mineral flotation test and copper oxide ores flotation test, as well as by SEM images of floated malachite.

Role of sulfate aerosols in modifying the cloud albedo: a closure experiment

2002 ◽  
Vol 61 (3) ◽  
pp. 169-187 ◽  
Author(s):  
S. Menon ◽  
V.K. Saxena ◽  
P. Durkee ◽  
B.N. Wenny ◽  
K. Nielsen
Keyword(s):  
Sulfate Aerosols ◽  
Cloud Albedo
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