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Silica Sand Processing: How to Separate Silica from Sand

ChayaChaya Mar 17, 2023Mar 17, 2023 727727
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Silica sand, also name as quartz sand, is a crucial material used in various industrial applications, including glassmaking, construction, and electronics. However, silica sand cannot be used directly and must undergo processing to eliminate impurities and isolate silica from other minerals.

We have mentioned 6 methods for removing iron from silica sand before. In this post, we'll cover how to separating silica from sand and setting up a silica sand processing plant step by step. And we'll also look at the different types of equipment available for silica sand washing.

01Identify the source of silica sand


The silica sand processing method varies from the silica sand source. therefore, to process silica sand, you first need to identify the source and their propties . Silica sand can be found in natural deposits or as a by-product of other mining operations. After you've determined the source of the silica sand, you can begin the silica sand separation process.

02Remove impurities from the silica sand


Silica sand often contains impurities such as clay, iron, and other minerals. To remove these impurities, the silica sand is washed with water and chemicals. This process is called washing and is typically done in a wet processing plant.

03Separate silica from other minerals


After the impurities have been removed, the silica sand is separated from other minerals using techniques such as gravity separation and magnetic separation. Gravity separation involves using a vibrating table or a centrifuge to separate silica from heavier minerals, while magnetic separation uses magnets to attract and separate silica from other minerals.

04Dry the silica sand


After the successful separation of silica from other minerals, it is essential to dry the silica thoroughly to eliminate any residual moisture, ensuring the high quality and usability of the silica. This can be done in a rotary dryer or a fluidized bed dryer.

05Set up a silica sand processing plant


To set up a silica sand processing plant, you'll need to consider factors such as the size of the operation, the amount of silica sand you'll be processing, and the equipment you'll need. Some essential components of a silica sand processing plant include a crusher, a vibrating screen, a sand washer, and a conveyor. You can also browse this article to learn more about the separation equipment related to a silica sand processing plant.

800tpd silica sand processing plant on site picture.jpg

(800tpd silica sand processing plant on site picture)

06Choose the right equipment for silica sand washing


When it comes to washing silica sand, there are several types of equipment available, including sand screws, log washers, and hydrocyclones. Sand screws are ideal for washing fine sands and removing clay, while log washers are best for washing coarser sands and breaking down lumps. Hydrocyclones use centrifugal force to separate sand from water and can be used for both washing and dewatering.

07TO Wrap Up


Separating silica from sand is a crucial aspect of processing silica sand that cannot be overlooked. By following the steps outlined in this post, you can guarantee that the silica sand you obtain will be of exceptional quality and suitable for various industrial applications.

So, if you're planning to establish a silica sand processing plant or require equipment for silica sand washing, welcome to contact us and we will explore the various options and select the most suitable equipment for your specific requirements.




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