Line Shape of the Chromium (VI) Absorption Band in Sodium Borate and Sodium Silicate Glasses

1980 ◽  
Vol 39 (3) ◽  
pp. 71-79 ◽  
Author(s):  
A. Paul
Keyword(s):  
Absorption Band ◽  
Sodium Silicate ◽  
Line Shape ◽  
Silicate Glasses ◽  
Sodium Borate ◽  
Chromium Vi

Leaching Studies of Cement-Glass Package Containing Sodium Borate

1986 ◽  
Vol 84 ◽  
Author(s):  
Masahiro Okamoto ◽  
Koichi Chino ◽  
Tsutomu Baba ◽  
Tatsuo Izumida ◽  
Fumio Kawamura ◽  
...  
Keyword(s):  
Sodium Silicate ◽  
Liquid Waste ◽  
Sodium Borate ◽  
Pressurized Water Reactor ◽  
X Ray Diffraction ◽  
Adsorption Ability ◽  
Pressurized Water ◽  
X Ray ◽  
Solidification Reaction ◽  
Main Components

AbstractA new solidification technique using cement-glass, which is a mixture of sodium silicate, cement, additives, and initiator of the solidification reaction, was developed for sodium borate liquid waste generated from pressurized water reactor (PWR) plants. The cement-glass could solidify eight times as much sodium borate as cement could, because the solidifying reaction of the cement-glass is not hindered by borate ions.The reaction mechanism of sodium silicate and phosphoric silicate (initiator), the main components of cement-glass, was studied through X-ray diffraction and compressive strength measurements. It was found that three- dimensionally bonded silicon dioxide was produced by polymerization of the two silicates. The leaching ratio of cesium from the cement-glass package was one-tenth that of the cement one. This low value was attributed to a high cesium adsorption ability of the cement-glass and it could be theoretically predicted accordingly.

Phase Separation and Spatial Morphology in Sodium Silicate Glasses by AFM, Light Scattering and NMR

2013 ◽  
Vol 96 (8) ◽  
pp. 2454-2460 ◽  
Author(s):  
Abbas Hodroj ◽  
Patrick Simon ◽  
Pierre Florian ◽  
Marie-Hélène Chopinet ◽  
Yann Vaills
Keyword(s):  
Phase Separation ◽  
Light Scattering ◽  
Sodium Silicate ◽  
Silicate Glasses ◽  
Spatial Morphology

scholarly journals Unconventionally Made-Cellular Glass Aggregate

2021 ◽  
Vol 2 (6) ◽  
pp. 21-31
Author(s):  
Lucian Paunescu ◽  
Sorin Mircea Axinte ◽  
Felicia Cosmulescu
Keyword(s):  
Calcium Carbonate ◽  
Sodium Silicate ◽  
Electromagnetic Waves ◽  
Microwave Field ◽  
Industrial Processes ◽  
Sodium Borate ◽  
Residual Glass ◽  
Cellular Glass ◽  
Glass Aggregate ◽  
Fluxing Agent

Improving the original manufacturing process in microwave field of a cellular glass aggregate using a recipe containing colored consumed drinking bottle, calcium carbonate (CaCO3) as an expanding agent, sodium borate (borax) as a fluxing agent and sodium silicate (Na2SiO3) as a binder is shown in the work. The main adopted technological measures were the advanced mechanical processing of residual glass at a grain dimension below 100 μm and especially the use of a high electromagnetic wave susceptible ceramic tube with a wall thickness reduced from 3.5 to 2.5 mm for the protection of the pressed glass-based mixture against the aggressive effect of microwave field and, in the same time, to achieve a preponderantly direct heating with electromagnetic waves. Of the tested variants, a recipe with 1.6 % calcium carbonate, 6 % borax, 8 % sodium silicate and the rest residual glass was determined to be optimal. The cellular glass aggregate had the bulk density of 0.22 g/cm3, heat conductivity of 0.079 W/m·K and compression strength of 5.9 MPa. The specific consumption of energy was very low (0.71 kWh/kg) below the range of reported values of the industrial processes consumption (between 0.74-1.15 kWh/kg).  

Effect of Oxidation State of Iron on Phase Separation in Sodium Silicate Glasses

2004 ◽  
Vol 84 (8) ◽  
pp. 1859-1864 ◽  
Author(s):  
Jun-Sik Jeoung ◽  
W. Howard Poisl ◽  
Michael C. Weinberg ◽  
Gary L. Smith ◽  
Hong Li
Keyword(s):  
Phase Separation ◽  
Oxidation State ◽  
Sodium Silicate ◽  
Silicate Glasses
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