Effect of temperature on the corrosion of refractories in glass melts (Review)

Pavlovskii, V. K.; Sobolev, Yu. S.

doi:10.1007/bf00677596

Cited by 5 publications

(4 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rate of corrosion of refractories with temperature can be described by an Arrhenius function. [132][133][134][135][136] This is illustrated in Fig. 5 for a wide range of alkali alkaline earth: aluminoborosilicate glass compositions.…”

Section: Temperature Volatilisation and Radionuclide Migrationmentioning

confidence: 99%

Corrosion of glass contact refractories for the vitrification of radioactive wastes: a review

Bingham

Connelly

Hyatt

et al. 2011

International Materials Reviews

View full text Add to dashboard Cite

A key consideration for all radioactive waste vitrification technologies is the physical and chemical integrity of the melting vessel. Most melting vessels require refractory liners that can safely withstand the high-temperature, highly corrosive environment, contain molten waste mixtures during melting and provide robust and reproducible service lifetimes. In this review article the key glass contact refractory materials used in radioactive waste vitrification melters, their properties, their applications and the mechanisms by which they become corroded during service are reviewed.

show abstract

Section: Temperature Volatilisation and Radionuclide Migrationmentioning

confidence: 99%

Corrosion of glass contact refractories for the vitrification of radioactive wastes: a review

Bingham

Connelly

Hyatt

et al. 2011

International Materials Reviews

View full text Add to dashboard Cite

show abstract

“…4 Penetration, dissolution and spalling are important phenomena that control the corrosion of industrial refractories. 5 Penetration is the focus of this study, and can be categorised into physical penetration and chemical invasion.…”

Section: Introductionmentioning

confidence: 99%

Compatibility of graphite with primary platinum group metals industrial matte

Thethwayo

Cromarty

2015

Materials Research Innovations

View full text Add to dashboard Cite

Wear resistance of synthetic graphite against liquid industrial platinum group metals furnace matte (Cu-Fe-Ni-S) was investigated from 800°C to 1450°C at a contact time of 1 hour. Graphite resistance was measured by the extent of liquid-matte penetration through the graphite, using Xray microtomography. The matte was molten at 900°C, and it penetrated through cracks in the graphite wall. The matte penetration depth into the graphite did not increase with temperature. The matte loss in the gas phase increased with temperature. During melting, the volume of the industrial matte expanded. As the matte expanded, it pushed against the wall of the graphite and penetrated through cracks in the graphite wall. Where the crucible volume was large enough to accommodate the expanded matte, the matte did not penetrate through the graphite. Graphite exhibited poor resistance against penetration by the liquid industrial platinum group metals furnace matte.

show abstract

“…The higher the corrosive stability of a refractory, the higher the activation energy [17]. According to tests at 1400 -1550°C for 120 h in static conditions, the following values were obtained.…”

mentioning

confidence: 99%

“…The dependence of the corrosion rate K on the temperature is exponential, i.e., it obeys the Arrhenius equation [1,17]:…”

mentioning

confidence: 99%

Effect of the glass composition on corrosion of zirconium-containing refractories in a glass-melting furnace (a review)

Min'ko

Nartsev

2007

Glass Ceram

View full text Add to dashboard Cite

Different chemical compositions of glasses and the individual characteristics of their reaction with zirconium-containing refractories are examined. When such refractories are used for lining glass-melting furnaces, it is necessary to consider the chemical compositions of the glass which will be melted in these furnaces.The following factors that act simultaneously and together affect corrosion of refractories, including zirconiumcontaining refractories, in the glass-melting furnace: quality of the refractory (chemical and mineral compositions, structure, properties); design of the glass-melting furnace; characteristics of the heat insulation; output of the furnace; arrangement of the refractories in the furnace; type and distribution of fuel over the volume of the furnace;temperature-time conditions of melting; intensity of exchange of the glass melt in the furnace (dependence on outputs, convective flows, presence of supplementary electric heating, bubbling, etc.); stability of manufacturing process; redox conditions of melting; type of raw materials and impurities in them; redox potential (ORP) of raw materials; characteristics of new types of raw material; batch composition and ORP; batch : cullet ratio concentration and type of auxiliary raw materials; volatility of the components of the glass; chemical composition, acid-base character, and ORP of the glass.All of these factors are examined to some degree in [1 -10].The chemical composition, acid-basic character, and ORP of the glass are especially important in corrosion of refractories, including zirconium-containing refractories.We do not claim completeness in discussing the problem here due to the large number of studies in this area and the ambiguity of interpreting the results, but we believe it useful to direct the attention of process engineers in the refractories field and glass process engineers to the complexity of this problem, which is a function of the quality of the refractories, the variety of the glass compositions, their tendency to constantly vary, including the initial raw materials.If we consider the glass compositions, there is almost no element in the periodic table which has not been "dropped in" the composition of glass. Rare-earth, heavy elements, halogens, and even gaseous components (N, H, S, F, and others) incorporated in the structure of the glass can be found in glass compositions. For this reason, the variety of glass compositions is much larger than the assortment of refractory materials suitable for quality glass melting, although most industrial glass production is for sheet glass and bottle glass (OST 21-51-82) which have similar chemical compositions (Table 1).Zirconium refractories belong to the acid class, since SiO 2 and ZrO 2 have acid properties, while Al 2 O 3 has amphoteric properties. For this reason, the zirconium refractory is most stable in alkali-free and low-alkali glasses, i.e.,

show abstract

Effect of temperature on the corrosion of refractories in glass melts (Review)

Cited by 5 publications

References 2 publications

Corrosion of glass contact refractories for the vitrification of radioactive wastes: a review

Corrosion of glass contact refractories for the vitrification of radioactive wastes: a review

Compatibility of graphite with primary platinum group metals industrial matte

Effect of the glass composition on corrosion of zirconium-containing refractories in a glass-melting furnace (a review)

Contact Info

Product

Resources

About