Silica reclamation - Revision history

Rasmus: fixed typo

2012-04-12T03:38:03Z

fixed typo

← Older revision		Revision as of 03:38, 12 April 2012
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	This explanation is a rehash of [http://www.ingentaconnect.com/content/klu/jmsc/2003/00000038/00000016/05146989;jsessionid=790h9mh6jcg1s.alexandra?format=prin Extraction of silicon dioxide from waste colored glasses by alkali fusion using potassium hydroxide] by Mori, H. From the Journal of Materials Science, Volume 38, Number 16, 15 August 2003 , pp. 3461-3468		This explanation is a rehash of [http://www.ingentaconnect.com/content/klu/jmsc/2003/00000038/00000016/05146989;jsessionid=790h9mh6jcg1s.alexandra?format=prin Extraction of silicon dioxide from waste colored glasses by alkali fusion using potassium hydroxide] by Mori, H. From the Journal of Materials Science, Volume 38, Number 16, 15 August 2003 , pp. 3461-3468

	Silica reacts with molten potassium hydroxide at 300 degrees ~~celcius~~. Once cooled, a dissolvable powder remains. Highly pure Silica precipitates from a solution of this powder upon neutralization with acid. Iron and other impurities remain in the solution and may be reclaimed by other means.		Silica reacts with molten potassium hydroxide at 300 degrees Celsius. Once cooled, a dissolvable powder remains. Highly pure Silica precipitates from a solution of this powder upon neutralization with acid. Iron and other impurities remain in the solution and may be reclaimed by other means.

	The author claims that this process results in a ~~Silica~~ hydroxide salt (Si(OH-)4 K+4), though i have found no confirmation that such a compound exists, nor does the author explain how the presence of such a compound was determined. If silica hydroxide does result, processes similar to this may be used to create oligomers (monomer and dimer aluminosilicate hydroxides) for [[Geopolymers]].		The author claims that this process results in a silica hydroxide salt (Si(OH-)4 K+4), though I have found no confirmation that such a compound exists, nor does the author explain how the presence of such a compound was determined. If silica hydroxide does result, processes similar to this may be used to create oligomers (monomer and dimer aluminosilicate hydroxides) for [[Geopolymers]].

	[[Category:Materials]]		[[Category:Materials]]

Rasmus at 12:21, 4 January 2011

2011-01-04T12:21:07Z

← Older revision		Revision as of 12:21, 4 January 2011
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	Silica (Si02) is often blended with other compounds for coloring or other purposes. ~~Inorder~~ to obtain highly pure silica (fused quartz for lenses or other optical purposes), these sources must be purified.		Silica (Si02) is often blended with other compounds for coloring or other purposes. In order to obtain highly pure silica (fused quartz for lenses or other optical purposes), these sources must be purified.

	This explanation is a rehash of [http://www.ingentaconnect.com/content/klu/jmsc/2003/00000038/00000016/05146989;jsessionid=790h9mh6jcg1s.alexandra?format=prin Extraction of silicon dioxide from waste colored glasses by alkali fusion using potassium hydroxide] by Mori, H. From the Journal of Materials Science, Volume 38, Number 16, 15 August 2003 , pp. 3461-3468		This explanation is a rehash of [http://www.ingentaconnect.com/content/klu/jmsc/2003/00000038/00000016/05146989;jsessionid=790h9mh6jcg1s.alexandra?format=prin Extraction of silicon dioxide from waste colored glasses by alkali fusion using potassium hydroxide] by Mori, H. From the Journal of Materials Science, Volume 38, Number 16, 15 August 2003 , pp. 3461-3468
Line 5:		Line 5:
	Silica reacts with molten potassium hydroxide at 300 degrees celcius. Once cooled, a dissolvable powder remains. Highly pure Silica precipitates from a solution of this powder upon neutralization with acid. Iron and other impurities remain in the solution and may be reclaimed by other means.		Silica reacts with molten potassium hydroxide at 300 degrees celcius. Once cooled, a dissolvable powder remains. Highly pure Silica precipitates from a solution of this powder upon neutralization with acid. Iron and other impurities remain in the solution and may be reclaimed by other means.

	The author claims that this process results in a Silica hydroxide salt (Si(OH-)4 K+4), though i have found no confirmation that such a compound exists, nor does the author explain how the presence of such a compound was determined. If silica hydroxide does result, processes similar to this may be used to create ~~oligimers~~ (monomer and dimer aluminosilicate hydroxides) for [[Geopolymers]].		The author claims that this process results in a Silica hydroxide salt (Si(OH-)4 K+4), though i have found no confirmation that such a compound exists, nor does the author explain how the presence of such a compound was determined. If silica hydroxide does result, processes similar to this may be used to create oligomers (monomer and dimer aluminosilicate hydroxides) for [[Geopolymers]].

			[[Category:Materials]]

Offonoffoffonoff at 23:30, 26 May 2008

2008-05-26T23:30:08Z

← Older revision		Revision as of 23:30, 26 May 2008
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	Silica reacts with molten potassium hydroxide at 300 degrees celcius. Once cooled, a dissolvable powder remains. Highly pure Silica precipitates from a solution of this powder upon neutralization with acid. Iron and other impurities remain in the solution and may be reclaimed by other means.		Silica reacts with molten potassium hydroxide at 300 degrees celcius. Once cooled, a dissolvable powder remains. Highly pure Silica precipitates from a solution of this powder upon neutralization with acid. Iron and other impurities remain in the solution and may be reclaimed by other means.

	The author claims that this process results in a Silica hydroxide salt (Si(OH-)4 K+4), though i have found no confirmation that such a compound exists, nor does the author explain how the presence of such a compound was determined. If silica hydroxide does result, processes similar to this may be used to create oligimers (monomer and dimer aluminosilicate hydroxides) for [Geopolymers].		The author claims that this process results in a Silica hydroxide salt (Si(OH-)4 K+4), though i have found no confirmation that such a compound exists, nor does the author explain how the presence of such a compound was determined. If silica hydroxide does result, processes similar to this may be used to create oligimers (monomer and dimer aluminosilicate hydroxides) for [[Geopolymers]].

Offonoffoffonoff: New page: Silica (Si02) is often blended with other compounds for coloring or other purposes. Inorder to obtain highly pure silica (fused quartz for lenses or other optical purposes), these sources...

2008-05-26T23:29:07Z

New page: Silica (Si02) is often blended with other compounds for coloring or other purposes. Inorder to obtain highly pure silica (fused quartz for lenses or other optical purposes), these sources...

New page

Silica (Si02) is often blended with other compounds for coloring or other purposes. Inorder to obtain highly pure silica (fused quartz for lenses or other optical purposes), these sources must be purified.

This explanation is a rehash of [http://www.ingentaconnect.com/content/klu/jmsc/2003/00000038/00000016/05146989;jsessionid=790h9mh6jcg1s.alexandra?format=prin Extraction of silicon dioxide from waste colored glasses by alkali fusion using potassium hydroxide] by Mori, H. From the Journal of Materials Science, Volume 38, Number 16, 15 August 2003 , pp. 3461-3468

Silica reacts with molten potassium hydroxide at 300 degrees celcius. Once cooled, a dissolvable powder remains. Highly pure Silica precipitates from a solution of this powder upon neutralization with acid. Iron and other impurities remain in the solution and may be reclaimed by other means.

The author claims that this process results in a Silica hydroxide salt (Si(OH-)4 K+4), though i have found no confirmation that such a compound exists, nor does the author explain how the presence of such a compound was determined. If silica hydroxide does result, processes similar to this may be used to create oligimers (monomer and dimer aluminosilicate hydroxides) for [Geopolymers].