نتایج جستجو برای: Hydroboracite

تعداد نتایج: 5  

The dissolution kinetics of pandermite and hydroboracite, present in an Iranian borate ore, in sulfuric acid has been comparatively studied. The effect of particle size, temperature, and acid concentration on their dissolution rate was investigated. Dissolution rates of both minerals increased by reducing the particle size and by raising the temperature. Although, an increase in the acid concen...

Journal: :Separation and Purification Technology 2021

Magnesium hydroxide is a commodity chemical, produced in almost pure form from seawater through precipitation. Even though Li brines contain high concentrations of Mg2+ cations, the precipitation Mg(OH)2 them not common. Rather it typically coprecipitated with other salts and becomes waste. The crystallization chemical-grade Li+ rich brine that contained 3.1 g/L 1.3 Li+, was investigated by mea...

بمانی, مهدی , مجتهدزاده, سیدحسین , کوهساری, امیرحسین ,

Mohammadabad-Oryan index is the only borate index in the north-east of Iran that is embedded in the formationscontainingtuff marl, tuffaceous marl, volcanic breccia and tuff brecciawhichbelongs to cretaceous. This index is located about 50 km south of Sabzevar. Two NE-SW trending thrust and reverse faults have occurred in the area. These faults were pathways for ore forming solutions and create...

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