GB375806A - Improved process of melting and refining high borosilicate glasses - Google Patents
Improved process of melting and refining high borosilicate glassesInfo
- Publication number
- GB375806A GB375806A GB9496/31A GB949631A GB375806A GB 375806 A GB375806 A GB 375806A GB 9496/31 A GB9496/31 A GB 9496/31A GB 949631 A GB949631 A GB 949631A GB 375806 A GB375806 A GB 375806A
- Authority
- GB
- United Kingdom
- Prior art keywords
- parts
- alumina
- borosilicate glasses
- content
- per cent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000005388 borosilicate glass Substances 0.000 title abstract 3
- 238000002844 melting Methods 0.000 title abstract 2
- 230000008018 melting Effects 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 238000007670 refining Methods 0.000 title 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 2
- 239000004927 clay Substances 0.000 abstract 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 abstract 2
- 230000004907 flux Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 229910052863 mullite Inorganic materials 0.000 abstract 2
- 239000011819 refractory material Substances 0.000 abstract 2
- 239000005995 Aluminium silicate Substances 0.000 abstract 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 abstract 1
- 235000012211 aluminium silicate Nutrition 0.000 abstract 1
- 239000004568 cement Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 abstract 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Abstract
High borosilicate glasses are melted and refined in container or machinery, the contact parts of which are composed of burnt refractories of high alumina content as such (more than 70 per cent) and low flux content (not more than 2 per cent of alkali oxides) and preferably also of low iron content (not more than 1 1/2 per cent of ferric oxide). A suitable refractory is made by burning a mixture of 85 parts of fused alumina, 8 parts of bond clay and 7 parts of kaolin, with or without the addition of phosphoric acid. Specification 316,129, [Class 22, Cements &c.] is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the melting &c. of high borosilicate glasses in contact with high alumina low flux refractories, in which the alumina content is mostly in the form of mullite, made by burning a mixture of 70 parts of mullite, 10 parts of fused alumina, and 20 parts of fire clay, with or without phosphoric acid. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US375806XA | 1930-05-19 | 1930-05-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB375806A true GB375806A (en) | 1932-06-28 |
Family
ID=21895104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9496/31A Expired GB375806A (en) | 1930-05-19 | 1931-03-28 | Improved process of melting and refining high borosilicate glasses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB375806A (en) |
-
1931
- 1931-03-28 GB GB9496/31A patent/GB375806A/en not_active Expired
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