Impact of Redox in Industrial Glass Melting and Importance of Redox Control

Hubert, Mathieu; Faber, Albert; Sesigur, H.; Akmaz, F.; Kahl, S-R.; Alejandro, E.; Maehara, Terutaka

doi:10.1002/9781119417507.ch11

Cited by 9 publications

(5 citation statements)

References 5 publications

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“…These values, while estimations, are in agreement with other studies of glasses bearing similar amounts of Fe 2 O 3 [3,15,18,41,79]. The effect of reductants on the dissolved oxygen in the borosilicate glass melt, has not been explicitly studied, however it is expected that carbonaceous materials will reduce the partial pressure of oxygen in glass melts [97][98][99].…”

Section: Oxygen Fugacitysupporting

confidence: 89%

“…In work by Goldman [77], even when there is no detected ferrous iron in the glasses, there is oxygen evolution associated with other redox species such as chromium, cerium and manganese. Other multivalent species, Mn, Cr, Ni and Ce, have been investigated for a range of properties in commercial glass melting [78][79][80][81][82] and in radioactive waste streams [3,83,84].…”

Section: Redox Changes During Meltingmentioning

confidence: 99%

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Alternative Reductants for Foam Control During Vitrification of High-Iron High Level Waste (Hlw) Feeds

et al. 2022

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Section: Oxygen Fugacitysupporting

confidence: 89%

Section: Redox Changes During Meltingmentioning

confidence: 99%

Alternative Reductants for Foam Control During Vitrification of High-Iron High Level Waste (Hlw) Feeds

et al. 2022

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“…17 Readers should take caution in this assessment, as the melting parameters and thermal history of some glasses can change the structure and oxidation state of certain components of the glass, resulting in a change in the constituent's specific refractive energy. [18][19][20] Young and Finn also found how the specific refractive energy of different constituents within basic soda-lime silicate glasses changed when the index of refraction was taken at wavelengths, λ (nm), of 435.8, 546.1, 589.3, and 670.8 nm. The result of which showed a linear trend in refractive energy when plotted against 1/λ 2 (modified from the Cauchy formula).…”

Section: Applications In Oxide Glass Chronologymentioning

confidence: 99%

“…One of the conclusions that Young and Finn made was that thermal history, referring to if the glass had been annealed or not, had little effect on the results of their calculation, especially regarding the Gladstone–Dale relation 17 . Readers should take caution in this assessment, as the melting parameters and thermal history of some glasses can change the structure and oxidation state of certain components of the glass, resulting in a change in the constituent's specific refractive energy 18–20 …”

Section: Introductionmentioning

confidence: 99%

The Gladstone–Dale relation: Applications in oxide glasses

Tsekrekas,

Clare

2023

Int J of Appl Glass Sci

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The Gladstone–Dale relation is among one of the many formulae put forward in the 19th century to try and relate the index of refraction and density of a material. Compared to other relations of the time, the Gladstone–Dale relation is advantageous as it is relatively simple to use. It has been suggested that the Gladstone–Dale relation can be used as a reliable way to calculate the index of refraction for oxide glasses because of the additive nature of the relation, making it ideal for glass compositions. The reliability of the Gladstone–Dale relation with regards to its use in glass science has been explored. Various oxide glass systems that use different network formers, conditional network formers, modifying oxides, and dopants have been obtained from the literature to determine the reliability of the relation with regards to index‐of‐refraction calculations. The benefits and faults of the relation are discussed, and it was found that it is not universally applicable for all glass compositions.

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“…That means higher amount of the dust addition in the glass batch, the higher amount of iron oxide and chromium oxide content in the glass sample. Iron oxide and chromium oxide in glass batch affect the glass color according to the redox reaction [17].…”

Section: Physical Properties Of Glass Specimensmentioning

confidence: 99%

Recycling of exhausted dust from regenerator of glass furnace in glass batch melting

et al. 2022

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In soda-lime glass manufacturing, evaporation of volatile compounds from glass melt is the origin of the dust emission from glass tank furnace. The exhausted dust then is deposited on the regenerator and is needed to be removed. Thus, this study focuses on using the dust from melting glass in glass production. The glass batches were prepared from 0 wt% to 10 wt% of the exhausted dust from soda-lime glass production as a substitution of the total raw materials. The analysis of phase and chemical composition of the dust by x-ray powder diffraction (XRD) and x-ray fluorescence technique (XRF) indicated that it consisted mainly sodium sulphate. Thermal analysis (TG/DSC) revealed that the addition of exhausted dust reduced the temperature of the melting reaction of the glass batches. The optimum amount of the exhausted dust, which made it possible to obtain the glass with the lowest number of remaining bubbles, was 2 wt%. From CIE lab and dilatometry results revealed that up to 2 wt% replacement of total raw materials by the exhausted dust in the glass batch did not affect the glass color, thermal expansion coefficient, glass transition temperature and dilatometric softening point of glass samples.

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Impact of Redox in Industrial Glass Melting and Importance of Redox Control

Cited by 9 publications

References 5 publications

Alternative Reductants for Foam Control During Vitrification of High-Iron High Level Waste (Hlw) Feeds

Alternative Reductants for Foam Control During Vitrification of High-Iron High Level Waste (Hlw) Feeds

The Gladstone–Dale relation: Applications in oxide glasses

Recycling of exhausted dust from regenerator of glass furnace in glass batch melting

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