Glass manufacturing process with in-situ colemanite calcination and pollution abatement features
US4282019A · kind A · utility
6Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 12, 1980 |
| Grant date | Aug 4, 1981 |
| Priority date | — |
| Expiry date | May 12, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/50
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Raw colemanite is introduced into the flue gas stream emanating in a combustion-fired furnace, which flue gas stream will contain boron values and if the glass being manufactured contains fluorine, will also containe fluorine values. This introduction provides for the calcination of the raw colemanite and likewise provides for pollution abating features by a reaction with the boron values and the fluorine values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.