The Role of Soluble Sodium Silicate for Enhancing Flotation Selectivity of Sulphides Towards Grade and Recovery Improvements: Example from a Cu-Sulphide Ore

2018 ◽  
pp. 2901-2913
Author(s):  
L. Xia ◽  
B. Hart ◽  
V. Sidorkiewicz ◽  
D. Shaw
Keyword(s):  
Sodium Silicate ◽  
Sulphide Ore

Structural role of water in sodium silicate glasses: results from silicon-29 and proton NMR spectroscopy

1992 ◽  
Vol 96 (15) ◽  
pp. 6405-6410 ◽  
Author(s):  
Joerg Kuemmerlen ◽  
Lawrence H. Merwin ◽  
Angelika Sebald ◽  
Hans Keppler
Keyword(s):  
Nmr Spectroscopy ◽  
Sodium Silicate ◽  
Proton Nmr ◽  
Silicate Glasses ◽  
Proton Nmr Spectroscopy ◽  
Structural Role

Key role of sodium silicate modulus in synthesis of mesoporous silica SBA-15 rods with controllable lengths and diameters

2012 ◽  
Vol 75 ◽  
pp. 45-47 ◽  
Author(s):  
Yi Ding ◽  
Guangfu Yin ◽  
Xiaoming Liao ◽  
Zhongbin Huang ◽  
Xianchun Chen ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Sodium Silicate

Role of Sodium Silicate Additive in Cement-Treated Kuttanad Soil

2016 ◽  
Vol 28 (6) ◽  
pp. 06016006 ◽  
Author(s):  
K. Suganya ◽  
P. V. Sivapullaiah
Keyword(s):  
Sodium Silicate

Role of Alkaline Cations on Geomaterial Foams

2010 ◽  
Vol 69 ◽  
pp. 97-106 ◽  
Author(s):  
Elodie Prud'Homme ◽  
Philippe Michaud ◽  
Emmanuel Joussein ◽  
Claire Peyratout ◽  
Agnes Smith ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Silica Fume ◽  
Sodium Silicate ◽  
Industrial Waste ◽  
Foam Formation ◽  
Alkaline Activation ◽  
Alkaline Cation ◽  
Alkaline Cations

The synthesis of geopolymers based on alkaline polysialate, was achieved at slightly elevated temperature, by alkaline activation of raw minerals and industrial waste. The materials were prepared from a solution containing dehydroxylated kaolinite and alkaline hydroxide pellets dissolved in potassium or sodium silicate. Then the mixture was transferred to a polyethylene mould sealed with a top and placed in an oven at 70°C during 24 hours. The addition of an industrial waste, silica fume, leads to the formation of an in-situ inorganic foam. Whatever the alkaline cation, foam formation occurs. The properties depend on the viscosity of silicate precursors due to the amount of water and to the size of alkaline.

scholarly journals The Potential Role of Colloidal Silica as a Depressant in Scheelite Flotation

Minerals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 144 ◽  
Author(s):  
Nathalie Kupka ◽  
Bent Babel ◽  
Martin Rudolph
Keyword(s):  
Sodium Silicate ◽  
Water Glass ◽  
Colloidal Silica ◽  
Potential Role ◽  
Short Communication ◽  
Main Challenge ◽  
Direct Use

The main challenge in scheelite flotation lies in the contamination of the concentrate by other calcium-bearing minerals, mainly calcite. To remedy this problem, sodium silicate is frequently used as a depressant. According to the literature, one hypothesis for the mechanism of water glass consists in its absorption onto calcite through colloidal silica formation, preventing hydrophobization by the collector. This short communication presents research conducted on the direct use of colloidal silica as a depressant in scheelite flotation. Colloidal silica is shown to have an impact on scheelite flotation, especially by depressing silicates.

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