It is commonly used as a pigment in paints, as a reducing agent in metallurgy, and as a source of sulfur in the production of sulfuric acid. CALCIUM SULFIDE is also used in the manufacturing of fireworks and in the treatment of wastewater. It is important to handle this compound with ...
15.The method of claim 14, wherein the oxidizing agent is sodium hypochlorite, sodium hydroxide, hydrogen peroxide, or chlorine gas. 16.A method of depleting iron from a geothermal brine solution, said method comprising:(a) contacting the geothermal brine solution with an oxidizing agent, where...
sulfuric acid, and to be directly leached, which is also the root cause of the low leaching efficiency of combined copper oxide ore. On the other hand, because the surrounding copper is adsorbed by limonite and evenly distributed on the surface and inside of limonite in the form of fine par...
yjin@ustb.edu.cn * Correspondence: tjiang@ustb.edu.cn; Tel.: +86-198-0105-0870 Abstract: This paper investigates the hydrated phase assemblage, microstructure, and gel com- position of sodium hydroxide (NaOH)-activated fly ash–slag blends with either low-calcium or high-calcium fly ash. ...
When calcium hydroxide is completely consumed, the dissolution of the C-S-H gel begins. The Ca/Si ratio affects the rate of C-S-H dissolution as well. In the most severe cases of acid attack, the dissolution of calcium–silicate–hydrate gel can seriously harm concrete's structural ...