ENERGY EFFICIENT SODA LIME SILICATE GLASS COMPOSITIONS USING BORAX PENTAHYDRATE
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
View Archive Info| Field | Value | |
| Title |
ENERGY EFFICIENT SODA LIME SILICATE GLASS COMPOSITIONS
USING BORAX PENTAHYDRATE
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| Creator |
KARMAKAR, B
MOLLA, A R ARAFDER, A SEN, R |
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| Description |
The invention is directed to borax pentahydrate originated boron
oxide (B O ) incorporated energy efficient silicate glass compositions 2 3
suitable for manufacturing improved container, float and ophthalmic
glasses. The invented glasses have the compositions in the ranges:
B O = 7.2-51.7 wt.%, SiO = 22.7-74.4 wt.%, Na O = 13.0-23.5 2 3 2 2
wt.%, CaO = 3.5-10.5 wt.%, K O = 0.03-0.3 wt.%, Al O = 0.15-1.3 2 2 3
wt.%, MgO = 0.43-4.0 wt.%, and Fe O +TiO = 0.05-0.12 wt.%. The 2 3 2
evaluated properties of the glasses have revealed that these invented
glasses are suitable for manufacturing improved quality container
glasses, float glasses and glasses for ophthalmic lens blanks as well. The
addition of borax pentahydrate originated B O at its optimum level (28.5 2 3
– 30.3 wt.% B O ) is found to reduce the glass melting temperature by 2 3
150-2000°C. This lowering of glass melting temperature substantially
saves energy and reduces the production cost; hence the compositions
are energy efficient and cost effectives. It eliminates the use of soda ash
and limestone, so it reduces the carbon dioxide (CO ) emission and 2
thereby global warming; thus these compositions are environmentally
friendly as well.
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| Date |
2013-02-19
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| Type |
Patent
NonPeerReviewed |
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| Identifier |
CSIR-CGCRI, India (2013) ENERGY EFFICIENT SODA LIME SILICATE GLASS COMPOSITIONS USING BORAX PENTAHYDRATE. IN301394.
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| Relation |
http://cgcri.csircentral.net/5000/
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