Turning Brown Silica Gravel Into White Silica Powder

[mymachine]

This is the silica gravel that I already own:

http://images-en.busytrade.com/174645700/Silica-Sand.jpg
If I compare to the other silica form such as below silica powder:

silica[/PLAIN] powder
http://lanemt.com/images/golf_sandpile.jpg

How can the brown-color silica gravel tuned into white silica powder?

Thank you

 

[Simon Bridge]

It has to be processed to remove impurities.
There are lots of different kinds of silica and different forms that silicon-dioxide can take.
http://en.wikipedia.org/wiki/Silicon_dioxide

 

[mymachine]

It has to be processed to remove impurities.
There are lots of different kinds of silica and different forms that silicon-dioxide can take.
http://en.wikipedia.org/wiki/Silicon_dioxide

So the brown-color silica gravel and the white silica powder is different?

Or both are the same?

If same, the brown-color silica gravel is being cleaned until the color is white.

Next crush it using the stone crusher machine to get the powder?

 

[Simon Bridge]

If you grind your brown silica it will probably get lighter as it reflects the light differently but basically yes: the white silica in the pic is most likely just a different kind of silica ... probably a totally different manufacturing process.

Your brown silica actually has lots of different colors in it you notice - including plain white. So you could painstakingly go through and separate out the white ones...

"Cleaning" would have to be more than just soaking in bleach or scrubbing with soapy water - it's not "dirty" as such since it is dirt. Some of the actual crystals probably have elements other than silicon and oxygen in it - giving it some extra color - and the grains will be made of different arrangements of the atoms anyway.

 

[alphy]

for sharing this information about your silica gravel and the comparison to silica powder. I can provide some insights on how the brown silica gravel can be turned into white silica powder.

Silica, also known as silicon dioxide, is a naturally occurring mineral that can be found in various forms, including gravel and powder. The brown color of your silica gravel is most likely due to the presence of impurities or other minerals mixed in with the silica. In order to turn it into white silica powder, the gravel needs to undergo a process called purification.

Purification involves removing any impurities or other minerals from the silica. This can be done through a variety of methods, such as washing, acid treatment, or heating. The specific method used will depend on the type and amount of impurities present in the gravel.

Once the gravel has been purified, it can then be ground down into a fine powder using a process called milling. This breaks down the larger gravel particles into smaller, uniform particles, resulting in a white silica powder.

It is also important to note that the white color of silica powder can also be achieved through the use of bleaching agents or other chemical treatments. These methods can be used to further enhance the purity and color of the silica powder.

In conclusion, the process of turning brown silica gravel into white silica powder involves purification and milling. These steps help to remove impurities and create a fine, uniform powder suitable for various applications. I hope this helps to answer your question.