flotation process silica


US6098810A - Flotation process for separating silica from ... , A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or refractory heavy minerals, to form one or more products for use in making glass. In the process, the feed material is floated in the presence of a depressant to inhibit the flotation of feldspar and thereby form a concentrate ...

Froth flotation of silica or siliceous gangue - The Dow ... , A flotation process for the separation of silica or siliceous gangue from mineral values wherein the silica or siliceous gangue and mineral values in particulate from in an aqueous slurry are subjected to froth flotation in the presence of an amine collector and an alkanol amine corresponding to the formula R xNH 3-x

Guide of Silica Sand Flotation Process-prm , The flotation used in the silica sand processing can not only remove the mica, feldspar minerals, but also folate the phosphorus, iron and other minerals, and remove the broken and grinding mixed with secondary pig iron.

Quartz Ore Beneficiation by Reverse Flotation for Silicon ... , A preliminary enrichment using reverse flotation process improves the silica purity up to 99.6% and removes the major impurities, which is suitable intermediate technological product able for silicon production and optical appli ion. This is a preview of subscription content, log in to check access.

Guide of Silica Sand Flotation Process-prm , Flotation separation of iron ore and silica sand. The zero electric point of iron ore in silica sand impurity is mostly above 5, and it is suggested to use anion collector under the positive charge in an acidic environment. Such as: The flotation reagents of oxidized iron ore are fatty acids soaps , alkyl sulfonates or sulfates.

flotation process of silica , Guide of Silica Sand Flotation Process - . In general, common mineral impurities in silica sand such as feldspar, mica and other sili e minerals, more adopt flotation process for separation, in order to remove the majority of mineral particles outside quartz sand, and enrichment quartz.

Flotation Process - an overview ScienceDirect Topics , Schematic of flotation process. Depending on the type of collector, either iron oxide or silica particles can be floated. An anionic collector is added to float the iron oxide particles, a ionic collector for the silica particles 9 .

Role of silica and alumina content in the flotation of ... , Flotation experiments were carried out with both samples i.e., the high alumina and high silica iron ore, using dodecylamine DDA as the collector. The flotation response in terms of Fe grade of the concentrate is shown in Fig. 7. The effect of DDA concentration using soluble starch 500 g/t as the depressant was studied at a pH around 7.5.

Froth flotation - Wikipedia , Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

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flotation process silica